C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
T h i s i s a f a m i l y o f 4 , 1 9 4 , 3 0 4 x 1 6 b i t E x t e n d e d D a t a O u t M o d e C M O S D R A M s . E x t e n d e d D a t a O u t M o d e o f f e r s h i g h s p e e d r a n d o m
a c c e s s o f m e m o r y c e l l s w i t h i n t h e s a m e r o w . R e f r e s h c y c l e ( 4 K R e f . o r 8 K R e f . ) , a c c e s s t i m e ( - 4 5 , - 5 0 o r - 6 0 ) , p o w e r c o n s u m p t i o n ( N o r -
m a l o r L o w p o w e r ) a r e o p t i o n a l f e a t u r e s o f t h i s f a m i l y . A l l o f t h i s f a m i l y h a v e C A S - b e f o r e - R A S r e f r e s h , R A S - o n l y r e f r e s h a n d H i d d e n
r e f r e s h c a p a b i l i t i e s . F u r t h e r m o r e , S e l f - r e f r e s h o p e r a t i o n i s a v a i l a b l e i n L - v e r s i o n . T h i s 4 M x 1 6 E D O M o d e D R A M f a m i l y i s f a b r i c a t e d
u s i n g S a m s u n g
s a d v a n c e d C M O S p r o c e s s t o r e a l i z e h i g h b a n d - w i d t h , l o w p o w e r c o n s u m p t i o n a n d h i g h r e l i a b i l i t y .
E x t e n d e d D a t a O u t M o d e o p e r a t i o n
2 C A S B y t e / W o r d R e a d / W r i t e o p e r a t i o n
C A S - b e f o r e - R A S r e f r e s h c a p a b i l i t y
R A S - o n l y a n d H i d d e n r e f r e s h c a p a b i l i t y
F a s t p a r a l l e l t e s t m o d e c a p a b i l i t y
S e l f - r e f r e s h c a p a b i l i t y ( L - v e r o n l y )
L V T T L ( 3 . 3 V ) c o m p a t i b l e i n p u t s a n d o u t p u t s
E a r l y W r i t e o r o u t p u t e n a b l e c o n t r o l l e d w r i t e
J E D E C S t a n d a r d p i n o u t
A v a i l a b l e i n P l a s t i c T S O P ( I I ) p a c k a g e s
+ 3 . 3 V
0 . 3 V p o w e r s u p p l y
I n d u s t r i a l T e m p e r a t u r e o p e r a t i n g
( - 4 0 ~ 8 5
C
)
C o n t r o l
C l o c k s
L o w e r
D a t a o u t
B u f f e r
R A S
U C A S
L C A S
W
Vcc
Vss
D Q 0
to
D Q 7
A 0 ~ A 1 2
(A0~A11)*1
A 0 ~ A 8
(A0~A9)*1
M e m o r y A r r a y
4 , 1 9 4 , 3 0 4 x 1 6
Cells
S A M S U N G E L E C T R O N I C S C O . , L T D .
r e s e r v e s t h e r i g h t t o
c h a n g e p r o d u c t s a n d s p e c i f i c a t i o n s w i t h o u t n o t i c e .
4M x 16bit CMOS Dynamic RAM with Extended Data Out
D E S C R I P T I O N
F U N C T I O N A L B L O C K D I A G R A M
Note) *1 : 4K Refresh
S
e
n
s
e
A
m
p
s
&
I
/
O
Upper
Data in
Buffer
U p p e r
D a t a o u t
B u f f e r
L o w e r
Data in
B u f f e r
D Q8
to
D Q 1 5
O E
R o w D e c o d e r
C o l u m n D e c o d e r
V B B G e n e r a t o r
R e f r e s h T i m e r
Refresh Control
R e f r e s h C o u n t e r
R o w A d d r e s s B u f f e r
C o l . A d d r e s s B u f f e r
P a r t I d e n t i f i c a t i o n
- K 4 E 6 6 1 6 1 2 D - T I / P ( 3 . 3 V , 8 K R e f . )
- K 4 E 6 4 1 6 1 2 D - T I / P ( 3 . 3 V , 4 K R e f . )
F E A T U R E S
R e f r e s h C y c l e s
P a r t
N O .
R e f r e s h
c y c l e
R e f r e s h t i m e
N o r m a l
L - v e r
K 4 E 6 6 1 6 1 2 D *
8 K
6 4 m s
1 2 8 m s
K 4 E 6 4 1 6 1 2 D
4 K
U n i t :
m W
* A c c e s s m o d e & R A S o n l y r e f r e s h m o d e
: 8 K c y c l e / 6 4 m s ( N o r m a l ) , 8 K c y c l e / 1 2 8 m s ( L - v e r . )
C A S - b e f o r e -R A S & H i d d e n r e f r e s h m o d e
: 4 K c y c l e / 6 4 m s ( N o r m a l ) , 4 K c y c l e / 1 2 8 m s ( L - v e r . )
A c t i v e P o w e r D i s s i p a t i o n
S p e e d
8 K
4 K
- 4 5
3 2 4
4 6 8
- 5 0
2 8 8
4 3 2
- 6 0
2 5 2
3 9 6
P e r f o r m a n c e R a n g e
S p e e d
t
R A C
t
C A C
t
R C
t
H P C
- 4 5
4 5 n s
1 2 n s
7 4 n s
1 7 n s
- 5 0
5 0 n s
1 3 n s
8 4 n s
2 0 n s
- 6 0
6 0 n s
1 5 n s
1 0 4 n s
2 5 n s
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
V CC
DQ0
DQ1
DQ2
DQ3
V
CC
DQ4
DQ5
DQ6
DQ7
N.C
V
CC
W
RAS
N.C
N.C
N.C
N.C
A0
A1
A2
A3
A4
A5
V
CC
V
SS
DQ15
DQ14
DQ13
DQ12
V
SS
DQ11
DQ10
DQ9
DQ8
N.C
V
SS
LCAS
UCAS
OE
N.C
N.C
A12(N.C)*
A11
A10
A9
A8
A7
A6
V
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
PIN CONFIGURATION
(Top Views)
Pin Name
Pin function
A0 - A12
Address Inputs(8K Product)
A0 - A11
Address Inputs(4K Product)
DQ0 - 15
Data In/Out
V
SS
Ground
RAS
Row Address Strobe
UCAS
Upper Column Address Strobe
LCAS
Lower Column Address Strobe
W
Read/Write Input
OE
Data Output Enable
V
CC
Power(+3.3V)
N.C
No Connection
(400mil TSOP(II))
*(N.C) : N.C for 4K Refresh Product
K4E661612D-T
K4E641612D-T
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
ABSOLUTE MAXIMUM RATINGS
* Permanent device damage may occur if "ABSOLUTE MAXIMUM RATINGS" are exceeded. Functional operation should be restricted to
the conditions as detailed in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
Parameter
Symbol
Rating
Units
Voltage on any pin relative to V
SS
V
IN,
V
O U T
-0.5 to +4.6
V
Voltage on V
C C
supply relative to V
SS
V
CC
-0.5 to +4.6
V
Storage Temperature
Tstg
-55 to +150
C
Power Dissipation
P
D
1
W
Short Circuit Output Current
I
OS
Address
50
mA
RECOMMENDED OPERATING CONDITIONS
(Voltage referenced to Vss, T
A
= -40 to 85
C)
*1 : Vcc+1.3V at pulse width
15ns which is measured at V
C C
*2 : -1.3 at pulse width
15ns which is measured at V
SS
Parameter
Symbol
Min
Typ
Max
Units
Supply Voltage
V
C C
3.0
3.3
3.6
V
Ground
V
SS
0
0
0
V
Input High Voltage
V
IH
2.0
-
Vcc+0.3
*1
V
Input Low Voltage
V
IL
-0.3
*2
-
0.8
V
DC AND OPERATING CHARACTERISTICS
(Recommended operating conditions unless otherwise noted.)
Parameter
Symbol
Min
Max
Units
Input Leakage Current (Any input 0
V
IN
V
CC
+0.3V,
all other pins not under test=0 Volt)
I
I(L)
-5
5
uA
Output Leakage Current
(Data out is disabled, 0V
V
OUT
V
CC
)
I
O(L)
-5
5
uA
Output High Voltage Level(I
OH
=-2mA)
V
OH
2.4
-
V
Output Low Voltage Level(I
OL
=2mA)
V
OL
-
0.4
V
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
* N o t e :
I
C C 1
, I
C C 3
, I
C C 4
a n d I
C C 6
a r e d e p e n d e n t o n o u t p u t l o a d i n g a n d c y c l e r a t e s . S p e c i f i e d v a l u e s a r e o b t a i n e d w i t h t h e o u t p u t o p e n .
I
C C
i s s p e c i f i e d a s a n a v e r a g e c u r r e n t . I n I
C C 1
, I
C C 3
a n d I
C C 6 ,
a d d r e s s c a n b e c h a n g e d m a x i m u m o n c e w h i l e R A S = V
I L
. I n I
C C 4
,
a d d r e s s c a n b e c h a n g e d m a x i m u m o n c e w i t h i n o n e E D O m o d e c y c l e t i m e ,
t
H P C
.
D C A N D O P E R A T I N G C H A R A C T E R I S T I C S
( C o n t i n u e d )
I
C C 1
* : O p e r a t i n g C u r r e n t ( R A S a n d U C A S , L C A S , A d d r e s s c y c l i n g @
t
R C
= m i n . )
I
C C 2
: S t a n d b y C u r r e n t ( R A S = U C A S = L C A S = W = V
IH
)
I
C C 3
* : R A S - o n l y R e f r e s h C u r r e n t ( U C A S = L C A S = V
IH
, R A S , A d d r e s s c y c l i n g @
t
R C
= m i n . )
I
C C 4
* : E x t e n d e d D a t a O u t M o d e C u r r e n t ( R A S = V
IL
, U C A S o r L C A S , A d d r e s s c y c l i n g @
t
H P C
= m i n . )
I
C C 5
: S t a n d b y C u r r e n t ( R A S = U C A S = L C A S = W = V
C C
- 0 . 2 V )
I
C C 6
* : C A S - B e f o r e - R A S R e f r e s h C u r r e n t (R A S a n d U C A S o r L C A S c y c l i n g @
t
R C
= m i n )
I
C C 7
: B a t t e r y b a c k - u p c u r r e n t , A v e r a g e p o w e r s u p p l y c u r r e n t , B a t t e r y b a c k - u p m o d e
I n p u t h i g h v o l t a g e ( V
IH
) = V
C C
- 0 . 2 V , I n p u t l o w v o l t a g e ( V
IL
) = 0 . 2 V , U C A S , L C A S = C A S - b e f o r e - R A S c y c l i n g o r 0 . 2 V
W , O E = V
IH
, A d d r e s s = D o n
t c a r e , D Q = O p e n , T
R C
= 3 1 . 2 5 u s
I
C C S
: S e l f R e f r e s h C u r r e n t
R A S = U C A S = L C A S = 0 . 2 V , W = O E = A 0 ~ A 1 2 ( A 1 1 ) = V
C C
- 0 . 2 V o r 0 . 2 V , D Q 0 ~ D Q 1 5 = V
C C
- 0 . 2 V , 0 . 2 V o r O p e n
S y m b o l
P o w e r
S p e e d
M a x
U n i t s
K 4 E 6 6 1 6 1 2 D
K 4 E 6 4 1 6 1 2 D
I
C C 1
D o n
t c a r e
- 4 5
- 5 0
- 6 0
9 0
8 0
7 0
1 3 0
1 2 0
1 1 0
m A
m A
m A
I
C C 2
N o r m a l
L
D o n
t c a r e
1
1
1
1
m A
m A
I
C C 3
D o n
t c a r e
- 4 5
- 5 0
- 6 0
9 0
8 0
7 0
1 3 0
1 2 0
1 1 0
m A
m A
m A
I
C C 4
D o n
t c a r e
- 4 5
- 5 0
- 6 0
1 0 0
9 0
8 0
1 0 0
9 0
8 0
m A
m A
m A
I
C C 5
N o r m a l
L
D o n
t c a r e
0 . 5
2 0 0
0 . 5
2 0 0
m A
u A
I
C C 6
D o n
t c a r e
- 4 5
- 5 0
- 6 0
1 3 0
1 2 0
1 1 0
1 3 0
1 2 0
1 1 0
m A
m A
m A
I
C C 7
L
D o n
t c a r e
3 5 0
3 5 0
u A
I
C C S
L
D o n
t c a r e
3 5 0
3 5 0
u A
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
C A P A C I T A N C E
( T
A
= 2 5
C , V
C C
= 3 . 3 V , f = 1 M H z )
P a r a m e t e r
S y m b o l
M i n
M a x
Units
I n p u t c a p a c i t a n c e [ A 0 ~ A 1 2 ]
C
I N 1
-
5
p F
I n p u t c a p a c i t a n c e [R A S , U C A S , L C A S , W , O E ]
C
I N 2
-
7
p F
O u t p u t c a p a c i t a n c e [ D Q 0 - D Q 1 5 ]
C
DQ
-
7
p F
A C C H A R A C T E R I S T I C S
( - 4 0
C
T
A
8 5
C , S e e n o t e 2 )
T e s t c o n d i t i o n : V
C C
= 3 . 3 V
0 . 3 V , V i h / V i l = 2 . 2 / 0 . 7 V , V o h / V o l = 2 . 0 / 0 . 8 V
P a r a m e t e r
S y m b o l
-45
-50
-60
Unit
s
N o t e
Min
M a x
M i n
M a x
M i n
M a x
R a n d o m r e a d o r w r i t e c y c l e t i m e
t
R C
7 4
8 4
1 0 4
n s
R e a d - m o d i f y - w r i t e c y c l e t i m e
t
R W C
1 0 1
1 1 3
1 3 8
n s
A c c e s s t i m e f r o m R A S
t
R A C
4 5
5 0
6 0
n s
3 , 4 , 1 0
A c c e s s t i m e f r o m C A S
t
C A C
1 2
1 3
1 5
n s
3 , 4 , 5
A c c e s s t i m e f r o m c o l u m n a d d r e s s
t
A A
2 3
2 5
3 0
n s
3 , 1 0
C A S t o o u t p u t i n L o w - Z
t
C L Z
3
3
3
n s
3
O u t p u t b u f f e r t u r n - o f f d e l a y f r o m C A S
t
C E Z
3
1 3
3
1 3
3
1 3
n s
6 , 2 0
O E t o o u t p u t i n L o w - Z
t
O L Z
3
3
3
n s
3
T r a n s i t i o n t i m e ( r i s e a n d f a l l )
t
T
1
5 0
1
5 0
1
5 0
n s
2
R A S p r e c h a r g e t i m e
t
R P
2 5
3 0
4 0
n s
R A S p u l s e w i d t h
t
R A S
4 5
1 0 K
5 0
1 0 K
6 0
1 0 K
n s
R A S h o l d t i m e
t
R S H
8
8
1 0
n s
C A S h o l d t i m e
t
C S H
3 5
3 8
4 0
n s
C A S p u l s e w i d t h
t
C A S
7
5 K
8
1 0 K
1 0
1 0 K
n s
R A S t o C A S d e l a y t i m e
t
R C D
1 1
3 3
1 1
3 7
1 4
4 5
n s
4
R A S t o c o l u m n a d d r e s s d e l a y t i m e
t
R A D
9
2 2
9
2 5
1 2
3 0
n s
1 0
C A S t o R A S p r e c h a r g e t i m e
t
C R P
5
5
5
n s
R o w a d d r e s s s e t - u p t i m e
t
A S R
0
0
0
n s
R o w a d d r e s s h o l d t i m e
t
R A H
7
7
1 0
n s
C o l u m n a d d r e s s s e t - u p t i m e
t
A S C
0
0
0
n s
1 3
C o l u m n a d d r e s s h o l d t i m e
t
C A H
7
7
1 0
n s
1 3
C o l u m n a d d r e s s t o R A S l e a d t i m e
t
R A L
2 3
2 5
3 0
n s
R e a d c o m m a n d s e t - u p t i m e
t
R C S
0
0
0
n s
R e a d c o m m a n d h o l d t i m e r e f e r e n c e d t o C A S
t
R C H
0
0
0
n s
8
R e a d c o m m a n d h o l d t i m e r e f e r e n c e d t o R A S
t
R R H
0
0
0
n s
8
W r i t e c o m m a n d h o l d t i m e
t
W C H
7
7
1 0
n s
W r i t e c o m m a n d p u l s e w i d t h
t
W P
6
7
1 0
n s
W r i t e c o m m a n d t o R A S l e a d t i m e
t
R W L
8
8
1 0
n s
W r i t e c o m m a n d t o C A S l e a d t i m e
t
C W L
7
7
1 0
n s
1 6
D a t a s e t - u p t i m e
t
D S
0
0
0
n s
9 , 1 9
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
A C C H A R A C T E R I S T I C S
( C o n t i n u e d )
P a r a m e t e r
S y m b o l
-45
-50
-60
U n i t s
N o t e
Min
M a x
Min
M a x
M i n
M a x
D a t a h o l d t i m e
t
D H
7
7
1 0
n s
9 , 1 9
R e f r e s h p e r i o d ( N o r m a l )
t
R E F
6 4
6 4
6 4
m s
R e f r e s h p e r i o d ( L - v e r )
t
R E F
1 2 8
1 2 8
1 2 8
m s
W r i t e c o m m a n d s e t - u p t i m e
t
W C S
0
0
0
n s
7
C A S t o W d e l a y t i m e
t
C W D
2 4
2 7
3 2
n s
7 , 1 5
R A S t o W d e l a y t i m e
t
R W D
5 7
6 4
7 7
n s
7
C o l u m n a d d r e s s t o W d e l a y t i m e
t
A W D
3 5
3 9
4 7
n s
7
C A S s e t - u p t i m e ( C A S - b e f o r e - R A S r e f r e s h )
t
C S R
5
5
5
n s
1 7
C A S h o l d t i m e ( C A S - b e f o r e - R A S r e f r e s h )
t
C H R
1 0
1 0
1 0
n s
1 8
R A S t o C A S p r e c h a r g e t i m e
t
R P C
5
5
5
n s
A c c e s s t i m e f r o m C A S p r e c h a r g e
t
C P A
2 4
2 8
3 5
n s
3
H y p e r P a g e c y c l e t i m e
t
H P C
1 7
2 0
2 5
n s
2 1
H y p e r P a g e r e a d - m o d i f y - w r i t e c y c l e t i m e
t
H P R W C
4 7
4 7
5 6
n s
2 1
C A S p r e c h a r g e t i m e ( H y p e r p a g e c y c l e )
t
C P
6.5
7
1 0
n s
1 4
R A S p u l s e w i d t h ( H y p e r p a g e c y c l e )
t
R A S P
4 5
2 0 0 K
5 0
2 0 0 K
6 0
2 0 0 K
n s
R A S h o l d t i m e f r o m C A S p r e c h a r g e
t
R H C P
2 4
3 0
3 5
n s
O E a c c e s s t i m e
t
O E A
1 2
1 3
1 5
n s
3
O E t o d a t a d e l a y
t
O E D
8
1 0
1 3
n s
C A S p r e c h a r g e t o W d e l a y t i m e
t
C P W D
3 6
4 1
5 2
n s
O u t p u t b u f f e r t u r n o f f d e l a y t i m e f r o m O E
t
O E Z
3
1 1
3
1 3
3
1 3
n s
6
O E c o m m a n d h o l d t i m e
t
O E H
5
5
5
n s
W r i t e c o m m a n d s e t - u p t i m e ( T e s t m o d e i n )
t
W T S
1 0
1 0
1 0
n s
1 1
W r i t e c o m m a n d h o l d t i m e ( T e s t m o d e i n )
t
W T H
1 0
1 0
1 0
n s
1 1
W t o R A S p r e c h a r g e t i m e ( C - B - R r e f r e s h )
t
W R P
1 0
1 0
1 0
n s
W t o R A S h o l d t i m e ( C - B - R r e f r e s h )
t
W R H
1 0
1 0
1 0
n s
O u t p u t d a t a h o l d t i m e
t
D O H
4
5
5
n s
O u t p u t b u f f e r t u r n o f f d e l a y f r o m R A S
t
R E Z
3
1 3
3
1 3
3
1 3
n s
6 , 2 0
O u t p u t b u f f e r t u r n o f f d e l a y f r o m W
t
W E Z
3
1 3
3
1 3
3
1 3
n s
6
W t o d a t a d e l a y
t
W E D
8
1 5
1 5
n s
O E t o C A S h o l d t i m e
t
O C H
5
5
5
n s
C A S h o l d t i m e t o O E
t
C H O
5
5
5
n s
O E p r e c h a r g e t i m e
t
O E P
5
5
5
n s
W p u l s e w i d t h ( H y p e r P a g e C y c l e )
t
W P E
5
5
5
n s
R A S p u l s e w i d t h ( C - B - R s e l f r e f r e s h )
t
R A S S
1 0 0
1 0 0
1 0 0
u s
2 2 , 2 3 , 2 4
R A S p r e c h a r g e t i m e ( C - B - R s e l f r e f r e s h )
t
R P S
7 4
9 0
1 1 0
n s
2 2 , 2 3 , 2 4
C A S h o l d t i m e ( C - B - R s e l f r e f r e s h )
t
C H S
- 5 0
- 5 0
- 5 0
n s
2 2 , 2 3 , 2 4
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
T E S T M O D E C Y C L E
P a r a m e t e r
S y m b o l
-45
-50
- 6 0
U n i t s
N o t e
Min
M a x
Min
M a x
M i n
M a x
R a n d o m r e a d o r w r i t e c y c l e t i m e
t
R C
7 9
8 9
1 0 9
n s
R e a d - m o d i f y - w r i t e c y c l e t i m e
t
R W C
1 1 0
1 2 1
1 4 5
n s
A c c e s s t i m e f r o m R A S
t
R A C
5 0
5 5
6 5
n s
3 , 4 , 1 0 , 1 2
A c c e s s t i m e f r o m C A S
t
C A C
1 7
1 8
2 0
n s
3 , 4 , 5 , 1 2
A c c e s s t i m e f r o m c o l u m n a d d r e s s
t
A A
2 8
3 0
3 5
n s
3 , 1 0 , 1 2
R A S p u l s e w i d t h
t
R A S
5 0
1 0 K
5 5
1 0 K
6 5
1 0 K
n s
C A S p u l s e w i d t h
t
C A S
1 2
1 0 K
1 3
1 0 K
1 5
1 0 K
n s
R A S h o l d t i m e
t
R S H
1 8
1 8
2 0
n s
C A S h o l d t i m e
t
C S H
3 9
4 3
5 0
n s
C o l u m n A d d r e s s t o R A S l e a d t i m e
t
R A L
2 8
3 0
3 5
n s
C A S t o W d e l a y t i m e
t
C W D
2 9
3 5
3 9
n s
7
R A S t o W d e l a y t i m e
t
R W D
6 2
7 2
8 4
n s
7
C o l u m n A d d r e s s t o W d e l a y t i m e
t
A W D
4 0
4 7
5 4
n s
7
H y p e r P a g e c y c l e t i m e
t
H P C
2 2
2 5
3 0
n s
2 1
H y p e r P a g e r e a d - m o d i f y - w r i t e c y c l e t i m e
t
H P R W C
5 2
5 3
6 1
n s
2 1
R A S p u l s e w i d t h ( H y p e r p a g e c y c l e )
t
R A S P
5 0
2 0 0 K
5 5
2 0 0 K
6 5
2 0 0 K
n s
A c c e s s t i m e f r o m C A S p r e c h a r g e
t
C P A
2 9
3 3
4 0
n s
3
O E a c c e s s t i m e
t
O E A
1 7
1 8
2 0
n s
3
O E t o d a t a d e l a y
t
O E D
1 3
1 8
2 0
n s
O E c o m m a n d h o l d t i m e
t
O E H
1 3
1 8
2 0
n s
( N o t e 1 1 )
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
N O T E S
A n i n i t i a l p a u s e o f 2 0 0 u s i s r e q u i r e d a f t e r p o w e r - u p f o l l o w e d b y a n y 8 R A S - o n l y o r C A S - b e f o r e -R A S r e f r e s h c y c l e s b e f o r e
p r o p e r d e v i c e o p e r a t i o n i s a c h i e v e d .
I n p u t v o l t a g e l e v e l s a r e V i h / V i l . V
IH
( m i n ) a n d V
I L
( m a x ) a r e r e f e r e n c e l e v e l s f o r m e a s u r i n g t i m i n g o f i n p u t s i g n a l s . T r a n s i t i o n
t i m e s a r e m e a s u r e d b e t w e e n V
IH
( m i n ) a n d V
IL
( m a x ) a n d a r e a s s u m e d t o b e 2 n s f o r a l l i n p u t s .
M e a s u r e d w i t h a l o a d e q u i v a l e n t t o 1 T T L l o a d a n d 1 0 0 p F .
O p e r a t i o n w i t h i n t h e
t
R C D
( m a x ) l i m i t i n s u r e s t h a t
t
R A C
( m a x ) c a n b e m e t .
t
R C D
( m a x ) i s s p e c i f i e d a s a r e f e r e n c e p o i n t o n l y .
I f
t
R C D
i s g r e a t e r t h a n t h e s p e c i f i e d
t
R C D
( m a x ) l i m i t , t h e n a c c e s s t i m e i s c o n t r o l l e d e x c l u s i v e l y b y
t
C A C
.
A s s u m e s t h a t
t
R C D
t
R C D
( m a x ) .
T h i s p a r a m e t e r d e f i n e s t h e t i m e a t w h i c h t h e o u t p u t a c h i e v e s t h e o p e n c i r c u i t c o n d i t i o n a n d i s n o t r e f e r e n c e d t o V
o h
o r V
o l
.
t
W C S
,
t
R W D
,
t
C W D
a n d
t
A W D
a r e n o n r e s t r i c t i v e o p e r a t i n g p a r a m e t e r s . T h e y a r e i n c l u d e d i n t h e d a t a s h e e t a s e l e c t r i c c h a r a c -
t e r i s t i c s o n l y . I f
t
W C S
t
W C S
( m i n ) , t h e c y c l e s i s a n e a r l y w r i t e c y c l e a n d t h e d a t a o u t p u t w i l l r e m a i n h i g h i m p e d a n c e f o r t h e
d u r a t i o n o f t h e c y c l e . I f
t
C W D
t
C W D
( m i n ) ,
t
R W D
t
R W D
( m i n ) a n d
t
A W D
t
A W D
( m i n ) , t h e n t h e c y c l e i s a r e a d - m o d i f y - w r i t e c y c l e
a n d t h e d a t a o u t p u t w i l l c o n t a i n t h e d a t a r e a d f r o m t h e s e l e c t e d a d d r e s s . I f n e i t h e r o f t h e a b o v e c o n d i t i o n s i s s a t i s f i e d , t h e
c o n d i t i o n o f t h e d a t a o u t i s i n d e t e r m i n a t e .
E i t h e r
t
R C H
o r
t
R R H
m u s t b e s a t i s f i e d f o r a r e a d c y c l e .
T h i s p a r a m e t e r s a r e r e f e r e n c e d t o t h e C A S l e a d i n g e d g e i n e a r l y w r i t e c y c l e s a n d t o t h e W f a l l i n g e d g e i n O E c o n t r o l l e d w r i t e
c y c l e a n d r e a d - m o d i f y - w r i t e c y c l e s .
O p e r a t i o n w i t h i n t h e
t
R A D
( m a x ) l i m i t i n s u r e s t h a t
t
R A C
( m a x ) c a n b e m e t .
t
R A D
( m a x ) i s s p e c i f i e d a s a r e f e r e n c e p o i n t o n l y . I f
t
R A D
i s g r e a t e r t h a n t h e s p e c i f i e d
t
R A D
( m a x ) l i m i t , t h e n a c c e s s t i m e i s c o n t r o l l e d b y
t
A A
.
T h e s e s p e c i f i e c a t i o n s a r e a p p l i e d i n t h e t e s t m o d e .
I n t e s t m o d e r e a d c y c l e , t h e v a l u e o f
t
R A C
,
t
A A
,
t
C A C
i s d e l a y e d b y 2 n s t o 5 n s f o r t h e s p e c i f i e d v a l u e s . T h e s e p a r a m e t e r s
s h o u l d b e s p e c i f i e d i n t e s t m o d e c y c l e s b y a d d i n g t h e a b o v e v a l u e t o t h e s p e c i f i e d v a l u e i n t h i s d a t a s h e e t .
t
A S C
,
t
C A H
a r e r e f e r e n c e d t o t h e e a r l i e r C A S f a l l i n g e d g e .
t
C P
i s s p e c i f i e d f r o m t h e l a s t C A S r i s i n g e d g e i n t h e p r e v i o u s c y c l e t o t h e f i r s t C A S f a l l i n g e d g e i n t h e n e x t c y c l e .
t
C W D
i s r e f e r e n c e d t o t h e l a t e r C A S f a l l i n g e d g e a t w o r d r e a d - m o d i f y - w r i t e c y c l e .
K 4 E 6 4 ( 6 ) 1 6 1 2 D T r u t h T a b l e
R A S
L C A S
U C A S
W
O E
D Q 0 - D Q 7
D Q 8 - D Q 1 5
S T A T E
H
X
X
X
X
H i - Z
Hi-Z
S t a n d b y
L
H
H
X
X
H i - Z
Hi-Z
R e f r e s h
L
L
H
H
L
D Q - O U T
Hi-Z
B y t e R e a d
L
H
L
H
L
H i - Z
D Q - O U T
B y t e R e a d
L
L
L
H
L
D Q - O U T
D Q - O U T
W o r d R e a d
L
L
H
L
H
D Q - I N
-
B y t e W r i t e
L
H
L
L
H
-
D Q - I N
B y t e W r i t e
L
L
L
L
H
D Q - I N
D Q - I N
W o r d W r i t e
L
L
L
H
H
H i - Z
Hi-Z
-
7 .
6 .
5 .
1 0 .
9 .
8 .
1 3 .
1 2 .
1 1 .
1 5 .
1 4 .
3 .
2 .
1 .
4 .
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
t
C W L
i s s p e c i f i e d f r o m W f a l l i n g e d g e t o t h e e a r l i e r C A S r i s i n g e d g e .
t
C S R
i s r e f e r e n c e d t o e a r l i e r C A S f a l l i n g b e f o r e R A S t r a n s i t i o n l o w .
t
C H R
i s r e f e r e n c e d t o t h e l a t e r C A S r i s i n g h i g h a f t e r R A S t r a n s i t i o n l o w .
t
D S
i s s p e c i f i e d f o r t h e e a r l i e r C A S f a l l i n g e d g e a n d
t
D H
i s s p e c i f i e d b y t h e l a t e r C A S f a l l i n g e d g e i n e a r l y w r i t e c y c l e .
I f R A S g o e s h i g h b e f o r e C A S h i g h g o i n g , t h e o p e n c i r c u i t c o n d i t i o n o f t h e o u t p u t i s a c h i e v e d b y C A S h i g h g o i n g .
t
A S C
6 n s , A s s u m e t
T
= 2 . 0 n s , i f t
ASC
6 n s , t h e n t
H P C
( m i n ) a n d t
C A S
( m i n ) m u s t b e i n c r e a s e d b y t h e v a l u e o f " 6 n s - t
A S C
".
I f
t
R A S S
1 0 0 u s , t h e n R A S p r e c h a r g e t i m e m u s t u s e
t
R P S
i n s t e a d o f
t
R P
.
F o r R A S - o n l y - R e f r e s h a n d B u r s t C A S - b e f o r e -R A S r e f r e s h m o d e , 4 0 9 6 c y c l e s ( 4 K / 8 K ) o f b u r s t r e f r e s h m u s t b e e x e c u t e d w i t h i n
6 4 m s b e f o r e a n d a f t e r s e l f r e f r e s h , i n o r d e r t o m e e t r e f r e s h s p e c i f i c a t i o n .
F o r d i s t r i b u t e d C A S - b e f o r e - R A S w i t h 1 5 . 6 u s i n t e r v a l , C B R r e f r e s h s h o u l d b e e x e c u t e d w i t h i n 1 5 . 6 u s i m m e d i a t e l y b e f o r e a n d
a f t e r s e l f r e f r e s h i n o r d e r t o m e e t r e f r e s h s p e c i f i c a t i o n .
t
CSR
t
C H R
R A S
L C A S
U C A S
t
D S
t
D H
L C A S
U C A S
D Q 0 ~ D Q 1 5
D i n
2 2 .
2 1 .
2 0 .
1 9 .
1 8 .
1 7 .
1 6 .
2 3 .
2 4 .
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
t
C R P
R A S
V
I H
-
V
IL
-
U C A S
V
I H
-
V
I L
-
A
V
IH
-
V
IL
-
W
V
I H
-
V
I L
-
O E
V
I H
-
V
IL
-
V
O H
-
V
O L
-
D Q 0 ~ D Q 7
C O L U M N
A D D R E S S
R O W
A D D R E S S
t
R A S
t
R C
t
C R P
t
R P
t
C S H
t
RSH
t
R C D
t
C A S
t
R A L
t
A S R
t
R A H
t
A S C
t
C A H
t
C R P
t
AA
t
O E A
t
C A C
t
C L Z
t
RAC
O P E N
t
C E Z
t
R C H
D o n
t c a r e
U n d e f i n e d
L C A S
V
IH
-
V
IL
-
t
C R P
t
C S H
t
R S H
t
R C D
t
C A S
t
R A D
t
R R H
V
O H
-
V
O L
-
D Q 8 ~ D Q 1 5
t
C A C
t
C L Z
t
RAC
O P E N
D A T A - O U T
D A T A - O U T
t
C E Z
t
OEZ
t
OEZ
t
R C S
W O R D R E A D C Y C L E
t
OLZ
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
N O T E : D
IN
= O P E N
L O W E R B Y T E R E A D C Y C L E
R A S
V
I H
-
V
I L
-
L C A S
V
IH
-
V
IL
-
A
V
I H
-
V
I L
-
W
V
I H
-
V
I L
-
O E
V
IH
-
V
IL
-
V
O H
-
V
O L
-
D Q 0 ~ D Q 7
C O L U M N
A D D R E S S
R O W
A D D R E S S
t
R A S
t
R C
t
R P
t
C S H
t
R S H
t
R C D
t
C A S
t
R A L
t
R A D
t
A S R
t
R A H
t
ASC
t
C A H
t
C R P
t
A A
t
O E A
t
C A C
t
CLZ
t
R A C
O P E N
D A T A - O U T
t
O E Z
t
C E Z
t
R R H
t
R C H
D o n
t c a r e
U n d e f i n e d
t
C R P
t
R P C
U C A S
V
I H
-
V
I L
-
O P E N
V
O H
-
V
O L
-
D Q 8 ~ D Q 1 5
t
R C S
t
O L Z
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
N O T E : D
IN
= O P E N
U P P E R B Y T E R E A D C Y C L E
R A S
V
I H
-
V
IL
-
L C A S
V
I H
-
V
I L
-
A
V
I H
-
V
IL
-
W
V
I H
-
V
IL
-
O E
V
I H
-
V
I L
-
V
O H
-
V
O L
-
D Q 0 ~ D Q 7
C O L U M N
A D D R E S S
R O W
A D D R E S S
t
R A S
t
R C
t
C R P
t
R P
t
C S H
t
R S H
t
R C D
t
C A S
t
RAL
t
R A D
t
ASR
t
R A H
t
A S C
t
C A H
t
C R P
t
A A
t
O E A
t
CAC
t
C L Z
t
R A C
O P E N
D A T A - O U T
t
O E Z
t
C E Z
t
R R H
t
R C H
D o n
t c a r e
U n d e f i n e d
U C A S
V
I H
-
V
IL
-
O P E N
V
O H
-
V
O L
-
D Q 8 ~ D Q 1 5
t
C R P
t
R P C
t
R C S
t
O L Z
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
R A S
V
I H
-
V
I L
-
U C A S
V
I H
-
V
I L
-
A
V
I H
-
V
I L
-
W
V
I H
-
V
IL
-
O E
V
IH
-
V
IL
-
C O L U M N
A D D R E S S
R O W
A D D R E S S
t
R A S
t
R C
t
C R P
t
R P
t
C S H
t
R S H
t
R C D
t
C A S
t
R A L
t
R A D
t
A S R
t
R A H
t
ASC
t
C A H
t
C R P
D o n
t c a r e
W O R D W R I T E C Y C L E ( E A R L Y W R I T E )
N O T E : D
O U T
= O P E N
U n d e f i n e d
L C A S
V
I H
-
V
I L
-
t
W C S
V
I H
-
V
I L
-
D Q 0 ~ D Q 7
t
D S
V
I H
-
V
I L
-
D Q 8 ~ D Q 1 5
t
C R P
t
C S H
t
R S H
t
R C D
t
C A S
t
C R P
t
W C H
t
W P
t
D H
DATA -IN
t
D S
t
D H
DATA -IN
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
t
C R P
R A S
V
IH
-
V
IL
-
U C A S
V
I H
-
V
IL
-
A
V
I H
-
V
I L
-
W
V
I H
-
V
I L
-
O E
V
I H
-
V
IL
-
C O L U M N
A D D R E S S
R O W
A D D R E S S
t
RAS
t
R C
t
R P
t
R A L
t
RAD
t
ASR
t
R A H
t
ASC
t
C A H
D o n
t c a r e
L O W E R B Y T E W R I T E C Y C L E ( E A R L Y W R I T E )
N O T E : D
O U T
= O P E N
U n d e f i n e d
L C A S
V
I H
-
V
I L
-
t
W C S
V
I H
-
V
I L
-
D Q 0 ~ D Q 7
t
D S
V
I H
-
V
IL
-
D Q 8 ~ D Q 1 5
t
C R P
t
C S H
t
R S H
t
R C D
t
C A S
t
W C H
t
W P
t
D H
D A T A - I N
t
C R P
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
R A S
V
I H
-
V
IL
-
U C A S
V
I H
-
V
IL
-
A
V
I H
-
V
IL
-
W
V
IH
-
V
IL
-
O E
V
I H
-
V
I L
-
C O L U M N
A D D R E S S
R O W
A D D R E S S
t
R A S
t
R C
t
C R P
t
R P
t
C S H
t
R S H
t
R C D
t
C A S
t
R A L
t
RAD
t
ASR
t
R A H
t
ASC
t
C A H
t
C R P
D o n
t c a r e
U P P E R B Y T E W R I T E C Y C L E ( E A R L Y W R I T E )
N O T E : D
O U T
= O P E N
U n d e f i n e d
L C A S
V
I H
-
V
IL
-
t
W C S
V
I H
-
V
I L
-
D Q 0 ~ D Q 7
V
I H
-
V
IL
-
D Q 8 ~ D Q 1 5
t
W C H
t
W P
t
D S
t
D H
D A T A - I N
t
C R P
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
R A S
V
I H
-
V
I L
-
U C A S
V
I H
-
V
I L
-
A
V
I H
-
V
I L
-
W
V
I H
-
V
I L
-
O E
V
IH
-
V
IL
-
R O W
A D D R E S S
t
R A S
t
R C
t
C R P
t
R P
t
C S H
t
R S H
t
R C D
t
C A S
t
R A L
t
R A D
t
A S R
t
R A H
t
A S C
t
C R P
D o n
t c a r e
W O R D W R I T E C Y C L E ( O E C O N T R O L L E D W R I T E )
N O T E : D
O U T
= O P E N
U n d e f i n e d
L C A S
V
I H
-
V
I L
-
V
I H
-
V
I L
-
D Q 0 ~ D Q 7
V
I H
-
V
IL
-
D Q 8 ~ D Q 1 5
t
C R P
t
R S H
t
R C D
t
CAS
t
C R P
t
R W L
t
W P
t
C W L
t
D H
t
D H
D A T A - I N
C O L U M N
A D D R E S S
t
O E H
t
O E D
t
D S
t
D S
D A T A - I N
t
C S H
t
CAH
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
R A S
V
I H
-
V
IL
-
U C A S
V
I H
-
V
I L
-
A
V
I H
-
V
IL
-
W
V
I H
-
V
IL
-
O E
V
I H
-
V
I L
-
C O L U M N
A D D R E S S
R O W
A D D R E S S
t
R A S
t
R C
t
R P
t
RAL
t
R A D
t
ASR
t
R A H
t
A S C
t
CAH
D o n
t c a r e
L O W E R B Y T E W R I T E C Y C L E ( O E C O N T R O L L E D W R I T E )
N O T E : D
O U T
= O P E N
U n d e f i n e d
L C A S
V
I H
-
V
IL
-
t
R W L
V
I H
-
V
I L
-
D Q 0 ~ D Q 7
t
D S
V
I H
-
V
IL
-
D Q 8 ~ D Q 1 5
t
C R P
t
C S H
t
R S H
t
R C D
t
C A S
t
C R P
t
W P
t
C W L
t
D H
D A T A - I N
t
C R P
t
R P C
t
O E H
t
O E D
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
R A S
V
I H
-
V
I L
-
U C A S
V
I H
-
V
I L
-
A
V
I H
-
V
I L
-
W
V
I H
-
V
IL
-
O E
V
I H
-
V
I L
-
C O L U M N
A D D R E S S
R O W
A D D R E S S
t
R A S
t
R C
t
C R P
t
R P
t
C S H
t
R S H
t
R C D
t
C A S
t
R A L
t
R A D
t
A S R
t
R A H
t
ASC
t
C A H
t
C R P
D o n
t c a r e
U P P E R B Y T E W R I T E C Y C L E ( O E C O N T R O L L E D W R I T E )
N O T E : D
O U T
= O P E N
U n d e f i n e d
L C A S
V
I H
-
V
I L
-
V
I H
-
V
I L
-
V
I H
-
V
IL
-
t
C R P
t
R W L
t
W P
t
C W L
t
D S
t
D H
D A T A - I N
t
OEH
t
O E D
D Q 0 ~ D Q 7
D Q 8 ~ D Q 1 5
t
C R P
C M O S D R A M
K 4 E 6 6 1 6 1 2 D , K 4 E 6 4 1 6 1 2 D
Industrial Temperature
t
R W L
R A S
V
I H
-
V
I L
-
U C A S
V
IH
-
V
IL
-
A
V
I H
-
V
I L
-
W
V
I H
-
V
I L
-
O E
V
I H
-
V
IL
-
C O L U M N
A D D R E S S
R O W
A D D R .
t
R A S
t
R W C
t
R P
t
R S H
t
R C D
t
C A S
t
C S H
t
RAD
t
A S R
t
R A H
t
A S C
t
C A H
t
C R P
D o n
t c a r e
W O R D R E A D - M O D I F Y - W R I T E C Y C L E
U n d e f i n e d
L C A S
V
I H
-
V
I L
-
V
I / O H
-
V
I / O L
-
D Q 0 ~ D Q 7
V
I / O H
-
V
I / O L
-
D Q 8 ~ D Q 1 5
t
W P
t
C W L
t
D S
t
D H
t
R S H
t
R C D
t
C A S
t
C R P
t
A W D
t
C W D
t
O E A
t
R W D
t
O E D
t
O E Z
t
RAC
t
AA
t
O E Z
t
R A C
t
A A
t
D S
t
O E D
t
D H
VALID
DATA-OUT
VALID
DATA-IN
VALID
DATA-OUT
VALID
DATA-IN
t
C A C
t
CLZ
t
CAC
t
CLZ
t
OLZ
t
OLZ
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
t
R W L
RAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
A
V
IH
-
V
IL
-
W
V
IH
-
V
IL
-
OE
V
IH
-
V
IL
-
COLUMN
ADDRESS
ROW
ADDR.
t
RAS
t
RWC
t
RP
t
CSH
t
RAD
t
ASR
t
RAH
t
ASC
t
CAH
t
CRP
Don
t care
LOWER-BYTE READ - MODIFY - WRITE CYCLE
Undefined
LCAS
V
IH
-
V
IL
-
V
I/OH
-
V
I/OL
-
DQ0 ~ DQ7
V
OH
-
V
OL
-
DQ8 ~ DQ15
t
W P
t
C W L
t
D S
t
DH
t
RSH
t
RCD
t
CAS
t
CRP
t
A W D
t
CWD
t
OEA
t
RWD
t
OED
t
OEZ
t
RAC
t
AA
VALID
DATA-OUT
VALID
DATA-IN
t
RPC
t
CAC
t
CLZ
OPEN
t
OLZ
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
t
RWL
RAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
A
V
IH
-
V
IL
-
W
V
IH
-
V
IL
-
OE
V
IH
-
V
IL
-
COLUMN
ADDRESS
ROW
ADDR
t
RAS
t
RWC
t
RP
t
RSH
t
RCD
t
CAS
t
CSH
t
RAD
t
ASR
t
RAH
t
ASC
t
CAH
t
CRP
Don
t care
UPPER-BYTE READ - MODIFY - WRITE CYCLE
Undefined
LCAS
V
IH
-
V
IL
-
V
OH
-
V
OL
-
DQ0 ~ DQ7
V
I/OH
-
V
I/OL
-
DQ8 ~ DQ15
t
W P
t
C W L
t
A W D
t
CWD
t
OEA
t
RWD
t
OEZ
t
RAC
t
AA
t
D S
t
OED
t
DH
VALID
DATA-OUT
VALID
DATA-IN
t
CRP
t
RPC
t
CAC
t
CLZ
OPEN
t
OLZ
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
t
ASC
t
OLZ
t
CLZ
t
OLZ
t
CLZ
RAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
A
V
IH
-
V
IL
-
W
V
IH
-
V
IL
-
OE
V
IH
-
V
IL
-
COLUMN
ADDRESS
ROW
ADDR
t
RASP
t
RP
t
RCD
t
CRP
Don
t care
HYPER PAGE MODE WORD READ CYCLE
Undefined
LCAS
V
IH
-
V
IL
-
V
OH
-
V
OL
-
DQ0 ~ DQ7
V
OH
-
V
OL
-
DQ8 ~ DQ15
COLUMN
ADDRESS
t
CAS
t
CAS
t
CAS
t
CAS
t
C P
t
C P
t
CP
t
REZ
t
HPC
t
HPC
t
HPC
t
RHCP
t
CSH
t
RCD
t
CRP
t
CAS
t
CAS
t
CAS
t
CAS
t
C P
t
CP
t
CP
t
RAD
t
R C S
t
OEA
t
RCH
t
RRH
COLUMN
ADDRESS
COLUMN
ADDR
t
OEZ
t
OEP
t
CHO
t
AA
t
CPA
t
AA
t
CAC
VALID
DATA-OUT
t
OEP
t
OEZ
t
RAC
t
CAC
t
D O H
VALID
DATA-OUT
VALID
DATA-OUT
t
OCH
t
CPA
t
AA
t
CAC
t
CAC
t
CPA
t
OEZ
VALID
DATA-OUT
VALID
DATA-OUT
VALID
DATA-OUT
t
OEP
t
OEZ
t
RAC
t
CAC
VALID
DATA-OUT
VALID
DATA-OUT
t
OEZ
VALID
DATA-OUT
VALID
DATA-OUT
t
D O H
t
OEA
t
ASR
t
RAH
t
ASC
t
CAH
t
ASC
t
CAH
t
CAH
t
CAH
t
ASC
t
RAL
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
t
OEA
t
OLZ
t
CLZ
RAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
A
V
IH
-
V
IL
-
W
V
IH
-
V
IL
-
OE
V
IH
-
V
IL
-
COLUMN
ADDRESS
ROW
ADDR
t
RASP
t
RP
t
C R P
Don
t care
HYPER PAGE MODE LOWER BYTE READ CYCLE
Undefined
LCAS
V
IH
-
V
IL
-
V
OH
-
V
OL
-
DQ0 ~ DQ7
V
OH
-
V
OL
-
DQ8 ~ DQ15
COLUMN
ADDRESS
t
REZ
t
RHCP
t
CSH
t
RCD
t
CAS
t
CAS
t
CAS
t
CAS
t
CP
t
CP
t
C P
t
RAD
t
RCS
t
RCH
t
RRH
COLUMN
ADDRESS
COLUMN
ADDR
t
OEZ
t
OEP
t
CHO
t
CPA
t
CAC
VALID
DATA-OUT
t
OEP
t
OEZ
t
RAC
t
CAC
t
D O H
VALID
DATA-OUT
VALID
DATA-OUT
t
O C H
t
CPA
t
CAC
t
CAC
t
CPA
t
OEZ
VALID
DATA-OUT
VALID
DATA-OUT
OPEN
t
RPC
t
ASR
t
RAH
t
ASC
t
CAH
t
ASC
t
CAH
t
CAH
t
ASC
t
CAH
t
ASC
t
AA
t
HPC
t
HPC
t
HPC
t
AA
t
AA
t
AA
t
OEA
t
RAL
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
RAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
A
V
IH
-
V
IL
-
W
V
IH
-
V
IL
-
OE
V
IH
-
V
IL
-
COLUMN
ADDRESS
ROW
ADDR.
t
RASP
t
RP
t
RCD
t
ASR
t
CRP
Don
t care
HYPER PAGE MODE UPPER BYTE READ CYCLE
Undefined
LCAS
V
IH
-
V
IL
-
V
OH
-
V
OL
-
DQ0 ~ DQ7
V
OH
-
V
OL
-
DQ8 ~ DQ15
COLUMN
ADDRESS
t
CAS
t
CAS
t
CAS
t
CAS
t
C P
t
C P
t
CP
t
REZ
t
HPC
t
HPC
t
HPC
t
RHCP
t
CSH
t
CRP
t
RAH
t
ASC
t
CAH
t
CAH
t
CAH
t
ASC
t
CAH
t
R C S
t
OEA
t
RCH
t
RRH
COLUMN
ADDRESS
COLUMN
ADDR.
t
OEZ
t
OEP
t
CHO
t
CPA
t
CAC
VALID
DATA-OUT
t
OEP
t
OEZ
t
RAC
t
CAC
t
OLZ
t
CLZ
t
D O H
VALID
DATA-OUT
VALID
DATA-OUT
t
OCH
t
CPA
t
CAC
t
CAC
t
CPA
t
OEZ
VALID
DATA-OUT
VALID
DATA-OUT
OPEN
t
ASC
t
RPC
t
RPC
t
RAD
t
ASC
t
AA
t
AA
t
AA
t
OEA
t
RAL
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
RAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
A
V
IH
-
V
IL
-
W
V
IH
-
V
IL
-
OE
V
IH
-
V
IL
-
COLUMN
ADDRESS
ROW
ADDR
t
RASP
t
R P
t
RCD
t
ASR
t
CRP
Don
t care
HYPER PAGE MODE WORD WRITE CYCLE ( EARLY WRITE )
Undefined
LCAS
V
IH
-
V
IL
-
V
IH
-
V
IL
-
DQ0 ~ DQ7
V
IH
-
V
IL
-
DQ8 ~ DQ15
t
C R P
t
HPC
t
RHCP
t
RAD
t
RAH
t
CAH
t
CAH
t
ASC
t
CAH
t
ASC
VALID
DATA-IN
t
DS
COLUMN
ADDRESS
COLUMN
ADDRESS
t
CAS
t
CP
t
CAS
t
CP
t
CAS
t
RSH
t
RCD
t
CRP
t
HPC
t
HPC
t
CAS
t
CP
t
CAS
t
CP
t
CAS
t
RSH
t
CSH
t
ASC
t
W P
t
W C S
t
WCH
t
WP
t
W C S
t
WCH
t
WP
t
WCS
t
WCH
VALID
DATA-IN
VALID
DATA-IN
t
D H
t
D S
t
DH
t
DS
t
DH
VALID
DATA-IN
VALID
DATA-IN
VALID
DATA-IN
t
D H
t
DH
t
DH
t
DS
t
D S
t
DS
NOTE : D
OUT
= OPEN
t
HPC
t
RAL
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
RAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
A
V
IH
-
V
IL
-
W
V
IH
-
V
IL
-
OE
V
IH
-
V
IL
-
COLUMN
ADDRESS
ROW
ADDR
t
RASP
t
RP
t
ASR
t
CRP
Don
t care
HYPER PAGE MODE LOWER BYTE WRITE CYCLE ( EARLY WRITE )
Undefined
LCAS
V
IH
-
V
IL
-
V
IH
-
V
IL
-
DQ0 ~ DQ7
V
IH
-
V
IL
-
DQ8 ~ DQ15
t
RPC
t
RHCP
t
RAD
t
RAH
t
CAH
t
CAH
t
ASC
t
CAH
t
ASC
VALID
DATA-IN
t
DS
COLUMN
ADDRESS
COLUMN
ADDRESS
t
RCD
t
C R P
t
HPC
t
HPC
t
CAS
t
CP
t
CAS
t
C P
t
CAS
t
RSH
t
CSH
t
ASC
t
WP
t
WCS
t
WCH
t
WP
t
WCS
t
WCH
t
W P
t
W C S
t
WCH
VALID
DATA-IN
VALID
DATA-IN
t
DH
t
D S
t
D H
t
D S
t
D H
NOTE : D
OUT
= OPEN
t
RAL
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
t
W C S
RAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
A
V
IH
-
V
IL
-
W
V
IH
-
V
IL
-
OE
V
IH
-
V
IL
-
COLUMN
ADDRESS
ROW
ADDR
t
RASP
t
R P
t
ASR
t
CRP
Don
t care
HYPER PAGE MODE UPPER BYTE WRITE CYCLE ( EARLY WRITE )
Undefined
LCAS
V
IH
-
V
IL
-
V
IH
-
V
IL
-
DQ0 ~ DQ7
V
IH
-
V
IL
-
DQ8 ~ DQ15
t
RPC
t
RHCP
t
RAD
t
RAH
t
CAH
t
CAH
t
ASC
t
CAH
t
ASC
VALID
DATA-IN
t
D S
COLUMN
ADDRESS
COLUMN
ADDRESS
t
RCD
t
CRP
t
HPC
t
HPC
t
CAS
t
CP
t
CAS
t
CP
t
CAS
t
RSH
t
CSH
t
ASC
t
WP
t
WCH
t
WP
t
WCS
t
WCH
t
W P
t
W C S
t
WCH
VALID
DATA-IN
VALID
DATA-IN
t
DH
t
D S
t
D H
t
DS
t
D H
NOTE : D
OUT
= OPEN
t
RAL
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
RAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
A
V
IH
-
V
IL
-
W
V
IH
-
V
IL
-
OE
V
IH
-
V
IL
-
V
I/OH
-
V
I/OL
-
DQ0 ~ DQ7
ROW
ADDR
t
CSH
t
RASP
t
RP
t
ASR
Don
t care
HYPER PAGE MODE WORD READ - MODIFY - WRITE CYCLE
Undefined
t
RCD
t
CP
t
RAD
t
CAH
t
WP
t
DH
COL.
ADDR
COL.
ADDR
t
CAS
t
CAS
t
CRP
t
ASC
t
CAH
t
RAL
t
RCS
t
CWL
t
CWD
t
AWD
t
RWD
t
W P
t
CWD
t
AWD
t
C W L
t
AA
t
RAC
t
OEA
t
CLZ
t
CAC
t
OEZ
t
CPWD
t
OED
t
ASC
t
CLZ
t
OEA
t
CAC
t
AA
t
DH
t
OED
LCAS
V
IH
-
V
IL
-
t
RCD
t
CP
t
CAS
t
CAS
t
CRP
t
CRP
t
CRP
V
I/OH
-
V
I/OL
-
DQ8 ~ DQ15
VALID
DATA-OUT
t
D H
t
AA
t
RAC
t
CLZ
t
CAC
VALID
DATA-IN
VALID
DATA-OUT
VALID
DATA-IN
t
CLZ
t
CAC
t
AA
t
DH
t
OEZ
t
OED
t
D S
t
DS
t
DS
t
OED
t
OEZ
t
OEZ
VALID
DATA-OUT
VALID
DATA-IN
VALID
DATA-OUT
VALID
DATA-IN
t
DS
t
HPRWC
t
RSH
t
R W L
t
RCS
t
RAH
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
t
ASC
RAS
V
IH
-
V
IL
-
A
V
IH
-
V
IL
-
W
V
IH
-
V
IL
-
OE
V
IH
-
V
IL
-
V
I/OH
-
V
I/OL
-
DQ0 ~ DQ7
ROW
ADDR
t
CSH
t
RASP
t
R P
t
ASR
Don
t care
HYPER PAGE MODE LOWER BYTE READ - MODIFY - WRITE CYCLE
Undefined
t
RAD
t
CAH
t
WP
t
D H
COL.
ADDR
COL.
ADDR
t
ASC
t
CAH
t
RAL
t
RCS
t
CWL
t
CWD
t
A W D
t
RWD
t
W P
t
CWD
t
AWD
t
CWL
t
AA
t
RAC
t
OEA
t
CLZ
t
CAC
t
OEZ
t
CPWD
t
OED
t
CLZ
t
OEA
t
CAC
t
AA
t
DH
t
OED
t
RWL
t
RCD
t
CP
t
CAS
t
CAS
t
CRP
t
C R P
t
C R P
V
I/OH
-
V
I/OL
-
DQ8 ~ DQ15
t
D S
t
OEZ
VALID
DATA-OUT
VALID
DATA-IN
VALID
DATA-OUT
VALID
DATA-IN
t
DS
t
RPC
t
RSH
OPEN
LCAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
t
HPRWC
t
RCS
t
OLZ
t
OLZ
t
RAH
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
t
ASC
t
CRP
RAS
V
IH
-
V
IL
-
A
V
IH
-
V
IL
-
W
V
IH
-
V
IL
-
OE
V
IH
-
V
IL
-
V
I/OH
-
V
I/OL
-
DQ0 ~ DQ7
ROW
ADDR
t
CSH
t
RASP
t
RP
t
ASR
Don
t care
HYPER PAGE MODE UPPER BYTE READ - MODIFY - WRITE CYCLE
Undefined
t
RAD
t
CAH
t
WP
t
D H
COL.
ADDR
COL.
ADDR
t
CAH
t
RAL
t
RCS
t
CWL
t
CWD
t
AWD
t
RWD
t
W P
t
CWD
t
A W D
t
C W L
t
AA
t
RAC
t
OEA
t
CLZ
t
CAC
t
OEZ
t
CPWD
t
OED
t
CLZ
t
OEA
t
CAC
t
AA
t
DH
t
OED
t
R W L
t
RCD
t
CP
t
CAS
t
CAS
t
C R P
t
CRP
V
I/OH
-
V
I/OL
-
DQ8 ~ DQ15
t
D S
t
OEZ
VALID
DATA-OUT
VALID
DATA-IN
VALID
DATA-OUT
VALID
DATA-IN
t
DS
t
RPC
t
RSH
OPEN
LCAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
t
HPRWC
t
ASC
t
RCS
t
RAH
t
OLZ
t
OLZ
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
HYPER PAGE READ AND WRITE MIXED CYCLE
RAS
V
IH
-
V
IL
-
A
V
IH
-
V
IL
-
W
V
IH
-
V
IL
-
OE
V
IH
-
V
IL
-
COLUMN
ADDRESS
ROW
ADDR
t
RASP
t
RP
Don
t care
Undefined
V
I/OH
-
V
I/OL
-
DQ0 ~ DQ7
t
WEZ
t
C P
t
HPC
t
HPC
t
HPC
t
RCD
t
RAH
t
ASC
t
CAH
t
CAH
t
CAH
t
ASC
t
CAH
t
RCH
t
R C S
t
R C S
t
RCH
t
ASC
COLUMN
ADDRESS
COL.
ADDR
VALID
DATA-OUT
t
REZ
t
AA
t
W C S
VALID
DATA-OUT
VALID
DATA-OUT
VALID
DATA-IN
t
RAC
COL.
ADDR
t
CAS
t
ASR
t
CAS
t
CAS
t
CAS
t
ASC
t
CP
t
RCH
t
WCH
t
WPE
t
CLZ
t
CPA
t
WED
t
AA
t
W E Z
t
DS
t
D H
t
CAC
t
OEA
t
C P
t
HPC
t
HPC
t
CAS
t
CAS
t
CAS
t
CAS
t
CP
V
I/OH
-
V
I/OL
-
DQ8 ~ DQ15
t
WEZ
VALID
DATA-OUT
t
REZ
t
AA
VALID
DATA-OUT
VALID
DATA-OUT
VALID
DATA-IN
t
RAC
t
AA
t
WEZ
t
DS
t
D H
t
CAC
t
OEA
LCAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
t
CP
t
HPC
t
CP
READ(
t
CAC
)
READ(
t
CPA
)
WRITE
READ(
t
AA
)
t
RAD
t
RHCP
t
RAL
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
t
CRP
OPEN
RAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
A
V
IH
-
V
IL
-
ROW
ADDR
t
R C
t
RP
t
ASR
t
CRP
RAS - ONLY REFRESH CYCLE
LCAS
V
IH
-
V
IL
-
t
RAS
t
RAH
NOTE : W, OE , D
IN
= Don
t care
D
OUT
= OPEN
t
RPC
CAS - BEFORE - RAS REFRESH CYCLE
NOTE : OE, A = Don
t care
RAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
t
RC
t
RP
LCAS
V
IH
-
V
IL
-
t
RAS
t
RPC
t
CP
t
RPC
t
CSR
t
CHR
t
CP
t
CSR
t
CHR
t
CEZ
OPEN
V
OH
-
V
OL
-
DQ0 ~ DQ7
V
OH
-
V
OL
-
DQ8 ~ DQ15
t
W R P
t
WRH
W
V
IH
-
V
IL
-
Don
t care
t
RP
Undefined
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
t
OEZ
DATA-IN
DATA-OUT
t
RP
RAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
A
V
IH
-
V
IL
-
W
V
IH
-
V
IL
-
OE
V
IH
-
V
IL
-
ROW
ADDRESS
t
RAS
t
RC
t
CHR
t
RCD
t
RSH
t
RAD
t
ASR
t
RAH
t
ASC
t
CRP
Don
t care
HIDDEN REFRESH CYCLE ( READ )
Undefined
LCAS
V
IH
-
V
IL
-
V
OH
-
V
OL
-
DQ0 ~ DQ7
V
OH
-
V
OL
-
DQ8 ~ DQ15
t
RSH
t
RCD
t
CRP
t
WRH
COLUMN
ADDRESS
t
OEA
t
RAS
t
R C
t
CHR
t
CAH
t
RCS
t
AA
t
RAC
t
CLZ
t
CAC
DATA-OUT
t
CEZ
OPEN
OPEN
t
RP
t
REZ
t
W E Z
t
OLZ
* In Hidden refresh cycle of 64Mb A-die & B-die, when CAS signal transits from Low to High, the valid data may be cut off.
t
RAL
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
t
WCS
t
R P
RAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
A
V
IH
-
V
IL
-
W
V
IH
-
V
IL
-
OE
V
IH
-
V
IL
-
ROW
ADDRESS
t
RAS
t
RC
t
CHR
t
RCD
t
RSH
t
RAD
t
ASR
t
RAH
t
ASC
t
CRP
Don
t care
HIDDEN REFRESH CYCLE ( WRITE )
Undefined
LCAS
V
IH
-
V
IL
-
V
IH
-
V
IL
-
DQ0 ~ DQ7
V
IH
-
V
IL
-
DQ8 ~ DQ15
t
RSH
t
RCD
t
CRP
t
WRH
COLUMN
ADDRESS
t
RAS
t
R C
t
CHR
t
CAH
t
WRP
t
D S
NOTE : D
OUT
= OPEN
t
W P
t
WCH
DATA-IN
t
D H
t
D S
DATA-IN
t
D H
t
R P
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
OPEN
CAS - BEFORE - RAS SELF REFRESH CYCLE
NOTE : OE , A = Don
t care
RAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
t
RPS
LCAS
V
IH
-
V
IL
-
t
RASS
t
RPC
t
C P
t
RPC
t
CSR
t
CEZ
OPEN
V
OH
-
V
OL
-
DQ0 ~ DQ7
V
OH
-
V
OL
-
DQ8 ~ DQ15
t
WRP
t
WRH
W
V
IH
-
V
IL
-
t
CHS
t
CP
t
CSR
t
CHS
TEST MODE IN CYCLE
NOTE : OE , A = Don
t care
RAS
V
IH
-
V
IL
-
UCAS
V
IH
-
V
IL
-
t
R P
LCAS
V
IH
-
V
IL
-
t
R C
t
RPC
t
CP
t
RPC
t
CSR
OPEN
V
OH
-
V
OL
-
DQ0 ~ DQ15
t
CHR
t
CP
t
CSR
t
CHR
t
RP
t
RP
Don
t care
Undefined
t
WTS
t
WTH
W
V
IH
-
V
IL
-
t
CEZ
t
RAS
CMOS DRAM
K4E661612D,K4E641612D
Industrial Temperature
50 TSOP(II) 400mil
Units : Inches (millimeters)
MAX
0.047 (1.20)
MIN
0.002 (0.05)
0.018 (0.45)
0.010 (0.25)
0.0315 (0.80)
0.034 (0.875)
0.821 (20.85)
0.829 (21.05)
0.841 (21.35)
MAX
0.010 (0.25)
0.004 (0.10)
0
.
4
0
0
(
1
0
.
1
6
)
0
.
4
7
1
(
1
1
.
9
6
)
0
.
4
5
5
(
1
1
.
5
6
)
0 ~ 8
0.030 (0.75)
0.018 (0.45)
TYP
0.010 (0.25)
O
PACKAGE DIMENSION
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