K6R4016C1B-C, K6R4016C1B-I
CMOS SRAM
PRELIMPreliminaryPPPPPPPPPINARY
Rev 2.1
- 1 -
June 1998
Document Title
256Kx16 Bit High Speed Static RAM(5V Operating),
Operated at Commercial and Industrial Temperature Ranges.
Revision History
The attached data sheets are prepared and approved by SAMSUNG Electronics. SAMSUNG Electronics CO., LTD. reserve the right to change the
specifications. SAMSUNG Electronics will evaluate and reply to your requests and questions on the parameters of this device. If you have any ques-
tions, please contact the SAMSUNG branch office near your office, call or contact Headquarters.
Rev No.
Rev. 0.0
Rev. 1.0
Rev. 2.0
Rev. 2.1
Remark
Design Target
Preliminary
Final
Final
History
Initial release with Design Target.
Release to Preliminary Data Sheet.
1.1. Replace Design Target to Preliminary.
Release to Final Data Sheet.
2.1. Delete Preliminary.
2.2. Add 30pF capacitive in test load.
2.3. Relax DC characteristics.
Change operating current at Industrial Temperature range.
Previous spec. Changed spec.
Items (10/12/15ns part) (10/12/15ns part)
I
CC
260/255/250mA 285/280/275mA
Item
Previous
Current
I
CC
10ns
250mA
260mA
12ns
240mA
255mA
15ns
230mA
250mA
I
SB
f=max.
40mA
50mA
Draft Data
Jan. 1st, 1997
Jun. 1st, 1997
Feb.11th.1998
Jun. 27th 1998
K6R4016C1B-C, K6R4016C1B-I
CMOS SRAM
PRELIMPreliminaryPPPPPPPPPINARY
Rev 2.1
- 2 -
June 1998
PIN FUNCTION
Pin Name
Pin Function
A
0
- A
17
Address Inputs
WE
Write Enable
CS
Chip Select
OE
Output Enable
LB
Lower-byte Control(I/O
1
~I/O
8
)
UB
Upper-byte Control(I/O
9
~I/O
16
)
I/O
1
~ I/O
16
Data Inputs/Outputs
V
CC
Power(+5.0V)
V
SS
Ground
N.C
No Connection
256K x 16 Bit High-Speed CMOS Static RAM
The K6R4016C1B is a 4,194,304-bit high-speed Static Random
Access Memory organized as 262,144 words by 16 bits. The
K6R4016C1B uses 16 common input and output lines and has
an output enable pin which operates faster than address
access time at read cycle. Also it allows that lower and upper
byte access by data byte control(UB, LB). The device is fabri-
cated using SAMSUNG
s advanced CMOS process and
designed for high-speed circuit technology. It is particularly well
suited for use in high-density high-speed system applications.
The K6R4016C1B is packaged in a 400mil 44-pin plastic SOJ
or TSOP(II) forward.
GENERAL DESCRIPTION
FEATURES
Fast Access Time 10,12,15ns(Max.)
Low Power Dissipation
Standby (TTL) : 50mA(Max.)
(CMOS) : 10mA(Max.)
Operating K6R4016C1B-10 : 260mA(Max.)
K6R4016C1B-12 : 255mA(Max.)
K6R4016C1B-15 : 250mA(Max.)
Single 5.0V
10% Power Supply
TTL Compatible Inputs and Outputs
I/O Compatible with 3.3V Device
Fully Static Operation
- No Clock or Refresh required
Three State Outputs
Center Power/Ground Pin Configuration
Data Byte Control : LB : I/O
1
~ I/O
8,
UB : I/O
9
~ I/O
16
Standard Pin Configuration
K6R4016C1B-J : 44-SOJ-400
K6R4016C1B-T : 44-TSOP2-400AF
Clk Gen.
I/O
1
~I/O
8
OE
UB
CS
PIN CONFIGURATION
(Top View)
SOJ/
FUNCTIONAL BLOCK DIAGRAM
R
o
w
S
e
l
e
c
t
Data
Cont.
Column Select
CLK
Gen.
Pre-Charge Circuit
Memory Array
512 Rows
512x16 Columns
I/O Circuit &
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
A
17
A
16
A
15
OE
UB
LB
I/O
16
I/O
15
I/O
14
I/O
13
Vss
Vcc
I/O
12
I/O
11
I/O
10
I/O
9
N.C
A
14
A
13
A
12
A
11
A
10
A
0
A
1
A
2
A
3
A
4
CS
I/O
1
I/O
2
I/O
3
I/O
4
Vcc
Vss
I/O
5
I/O
6
I/O
7
I/O
8
WE
A
5
A
6
A
7
A
8
A
9
I/O
9
~I/O
16
Data
Cont.
WE
LB
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A
10
A
12
A
14
A
16
K6R4016C1B-C10/C12/C15
Commercial Temp.
K6R4016C1B-I10/I12/I15
Industrial Temp.
ORDERING INFORMATION
TSOP2
A
9
A
11
A
13
A
15
A
17
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
K6R4016C1B-C, K6R4016C1B-I
CMOS SRAM
PRELIMPreliminaryPPPPPPPPPINARY
Rev 2.1
- 3 -
June 1998
DC AND OPERATING CHARACTERISTICS*
(T
A
=0 to 70
C, Vcc= 5.0V
10%, unless otherwise specified)
* The above parameters are also guaranteed at industrial temperature range.
** V
CC
=5.0V
5%
,
Temp.=25
C
Parameter
Symbol
Test Conditions
Min
Max
Unit
Input Leakage Current
I
LI
V
IN
=V
SS
to
V
CC
-2
2
A
Output Leakage Current
I
LO
CS=V
IH
or OE=V
IH
or WE=V
IL
V
OUT
= V
SS
to
V
CC
-2
2
A
Operating Current
I
CC
Min. Cycle, 100% Duty
CS=V
IL,
V
IN
=V
IH
or
V
IL,
I
OUT
=0mA
10ns
-
260
mA
12ns
-
255
15ns
-
250
Standby Current
I
SB
Min. Cycle, CS=V
IH
-
50
mA
I
SB1
f=0MHz, CS
V
CC
-0.2V,
V
IN
V
CC
-0.2V or V
IN
0.2V
-
10
mA
Output Low Voltage Level
V
OL
I
OL
=8mA
-
0.4
V
Output High Voltage Level
V
OH
I
OH
=-4mA
2.4
-
V
V
OH1**
I
OH1
=-0.1mA
-
3.95
V
CAPACITANCE*
(T
A
=25
C, f=1.0MHz)
* Capacitance is sampled and not 100% tested.
Item
Symbol
Test Conditions
MIN
Max
Unit
Input/Output Capacitance
C
I/O
V
I/O
=0V
-
8
pF
Input Capacitance
C
IN
V
IN
=0V
-
7
pF
ABSOLUTE MAXIMUM RATINGS*
* Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implied.
Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Parameter
Symbol
Rating
Unit
Voltage on Any Pin Relative to V
SS
V
IN
,
V
OUT
-0.5 to 7.0
V
Voltage on V
CC
Supply Relative to V
SS
V
CC
-0.5 to 7.0
V
Power Dissipation
P
D
1.0
W
Storage Temperature
T
STG
-65 to 150
C
Operating Temperature
Commercial
T
A
0 to 70
C
Industrial
T
A
-40 to 85
C
RECOMMENDED DC OPERATING CONDITIONS*
(T
A
=0 to 70
C)
* The above parameters are also guaranteed at industrial temperature range.
** V
IL
(Min) = -2.0V a.c(Pulse Width
8ns) for I
20mA
.
*** V
IH
(Max) = V
CC
+ 2.0V a.c (Pulse Width
8ns) for I
20mA.
Parameter
Symbol
Min
Typ
Max
Unit
Supply Voltage
V
CC
4.5
5.0
5.5
V
Ground
V
SS
0
0
0
V
Input High Voltage
V
IH
2.2
-
V
CC
+0.5***
V
Input Low Voltage
V
IL
-0.5**
-
0.8
V
K6R4016C1B-C, K6R4016C1B-I
CMOS SRAM
PRELIMPreliminaryPPPPPPPPPINARY
Rev 2.1
- 4 -
June 1998
TEST CONDITIONS*
* The above test conditions are also applied at industrial temperature range.
Parameter
Value
Input Pulse Levels
0V to 3V
Input Rise and Fall Times
3ns
Input and Output timing Reference Levels
1.5V
Output Loads
See below
AC CHARACTERISTICS
(T
A
=0 to 70
C, V
CC
=5.0V
10%, unless otherwise noted.)
Output Loads(B)
D
OUT
5pF*
480
255
for t
HZ
, t
LZ
, t
WHZ
, t
OW
, t
OLZ
& t
OHZ
+5.0V
* Including Scope and Jig Capacitance
READ CYCLE*
* The above parameters are also guaranteed at industrial temperature range.
Parameter
Symbol
K6R4016C1B-10
K6R4016C1B-12
K6R4016C1B-15
Unit
Min
Max
Min
Max
Min
Max
Read Cycle Time
t
RC
10
-
12
-
15
-
ns
Address Access Time
t
AA
-
10
-
12
-
15
ns
Chip Select to Output
t
CO
-
10
-
12
-
15
ns
Output Enable to Valid Output
t
OE
-
5
-
6
-
7
ns
UB, LB Access Time
t
BA
-
5
-
6
-
7
ns
Chip Enable to Low-Z Output
t
LZ
3
-
3
-
3
-
ns
Output Enable to Low-Z Output
t
OLZ
0
-
0
-
0
-
ns
UB, LB Enable to Low-Z Output
t
BLZ
0
-
0
-
0
-
ns
Chip Disable to High-Z Output
t
HZ
0
5
0
6
0
7
ns
Output Disable to High-Z Output
t
OHZ
0
5
0
6
0
7
ns
UB, LB Disable to High-Z Output
t
BHZ
0
5
0
6
0
7
ns
Output Hold from Address Change
t
OH
3
-
3
-
3
-
ns
Output Loads(A)
D
OUT
R
L
= 50
Z
O
= 50
V
L
= 1.5V
30pF*
* Capacitive Load consists of all components of the
test environment.
K6R4016C1B-C, K6R4016C1B-I
CMOS SRAM
PRELIMPreliminaryPPPPPPPPPINARY
Rev 2.1
- 5 -
June 1998
WRITE CYCLE*
* The above parameters are also guaranteed at industrial temperature range.
Parameter
Symbol
K6R4016C1B-10
K6R4016C1B-12
K6R4016C1B-15
Unit
Min
Max
Min
Max
Min
Max
Write Cycle Time
t
WC
10
-
12
-
15
-
ns
Chip Select to End of Write
t
CW
7
-
8
-
10
-
ns
Address Set-up Time
t
AS
0
-
0
-
0
-
ns
Address Valid to End of Write
t
AW
7
-
8
-
10
-
ns
Write Pulse Width(OE High)
t
WP
7
-
8
-
10
-
ns
Write Pulse Width(OE Low)
t
WP1
10
-
12
-
15
-
ns
UB, LB Valid to End of Write
t
BW
7
-
8
-
10
-
ns
Write Recovery Time
t
WR
0
-
0
-
0
-
ns
Write to Output High-Z
t
WHZ
0
5
0
6
0
7
ns
Data to Write Time Overlap
t
DW
5
-
6
-
7
-
ns
Data Hold from Write Time
t
DH
0
-
0
-
0
-
ns
End Write to Output Low-Z
t
OW
3
-
3
-
3
-
ns
Address
Data Out
Previous Valid Data
Valid Data
TIMMING DIAGRAMS
TIMING WAVEFORM OF READ CYCLE(1)
(Address Controlled
,
CS=OE=V
IL
, WE=V
IH
, UB, LB=V
IL
)
t
AA
t
RC
t
OH
K6R4016C1B-C, K6R4016C1B-I
CMOS SRAM
PRELIMPreliminaryPPPPPPPPPINARY
Rev 2.1
- 6 -
June 1998
NOTES(READ CYCLE)
1. WE is high for read cycle.
2. All read cycle timing is referenced from the last valid address to the first transition address.
3. t
HZ
and t
OHZ
are defined as the time at which the outputs achieve the open circuit condition and are not referenced to V
OH
or V
OL
levels.
4. At any given temperature and voltage condition, t
HZ
(Max.) is less than t
LZ
(Min.) both for a given device and from device to
device.
5. Transition is measured
200mV
from steady state voltage with Load(B). This parameter is sampled and not 100% tested.
6. Device is continuously selected with CS=V
IL.
7. Address valid prior to coincident with CS transition low.
8. For common I/O applications, minimization or elimination of bus contention conditions is necessary during read and write cycle.
TIMING WAVEFORM OF READ CYCLE(2)
(WE=V
IH
)
Valid Data
High-Z
t
RC
CS
Address
UB, LB
OE
Data out
t
HZ(3,4,5)
t
AA
t
CO
t
BA
t
OE
t
OLZ
t
LZ(4,5)
t
OH
t
OHZ
t
BHZ(3,4,5)
t
BLZ(4,5)
TIMING WAVEFORM OF WRITE CYCLE(1)
(OE Clock)
Address
CS
UB, LB
WE
Data in
Data out
t
WC
t
CW(3)
t
BW
t
WP(2)
t
AS(4)
t
DH
t
DW
t
OHZ(6)
High-Z
High-Z
Valid Data
OE
t
AW
t
WR(5)
K6R4016C1B-C, K6R4016C1B-I
CMOS SRAM
PRELIMPreliminaryPPPPPPPPPINARY
Rev 2.1
- 7 -
June 1998
TIMING WAVEFORM OF WRITE CYCLE(2)
(OE =Low fixed)
Address
CS
UB, LB
WE
Data in
Data out
t
WC
t
CW(3)
t
BW
t
WP1(2)
t
DH
t
DW
t
WR(5)
t
AS(4)
t
OW
t
WHZ(6)
(10)
(9)
High-Z
Valid Data
t
AW
High-Z
TIMING WAVEFORM OF WRITE CYCLE(3)
(CS=Controlled)
Address
CS
t
AW
t
DW
t
DH
Valid Data
WE
Data in
Data out
High-Z
High-Z(8)
UB, LB
t
CW(3)
t
WP(2)
t
AS(4)
t
WC
t
WR(5)
High-Z
High-Z
t
LZ
t
WHZ(6)
t
BW
K6R4016C1B-C, K6R4016C1B-I
CMOS SRAM
PRELIMPreliminaryPPPPPPPPPINARY
Rev 2.1
- 8 -
June 1998
NOTES(WRITE CYCLE)
1. All write cycle timing is referenced from the last valid address to the first transition address.
2. A write occurs during the overlap of a low CS,WE,LB and UB. A write begins at the latest transition CS going low and WE
going low ; A write ends at the earliest transition CS going high or WE going high. t
WP
is measured from the beginning of write
to the end of write.
3. t
CW
is measured from the later of CS going low to end of write.
4. t
AS
is measured from the address valid to the beginning of write.
5. t
WR
is measured from the end of write to the address change. t
WR
applied in case a write ends as CS or WE going high.
6. If OE, CS and WE are in the Read Mode during this period, the I/O pins are in the output low-Z state. Inputs of opposite phase
of the output must not be applied because bus contention can occur.
7. For common I/O applications, minimization or elimination of bus contention conditions is necessary during read and write cycle.
8. If CS goes low simultaneously with WE going or after WE going low, the outputs remain high impedance state.
9. Dout is the read data of the new address.
10. When CS is low : I/O pins are in the output state. The input signals in the opposite phase leading to the output should not be
applied.
FUNCTIONAL DESCRIPTION
* X means Don
t Care.
CS
WE
OE
LB
UB
Mode
I/O Pin
Supply Current
I/O
1
~I/O
8
I/O
9
~I/O
16
H
X
X*
X
X
Not Select
High-Z
High-Z
I
SB
, I
SB1
L
H
H
X
X
Output Disable
High-Z
High-Z
I
CC
L
X
X
H
H
L
H
L
L
H
Read
D
OUT
High-Z
I
CC
H
L
High-Z
D
OUT
L
L
D
OUT
D
OUT
L
L
X
L
H
Write
D
IN
High-Z
I
CC
H
L
High-Z
D
IN
L
L
D
IN
D
IN
Address
CS
Data Valid
UB, LB
WE
Data in
Data out
TIMING WAVEFORM OF WRITE CYCLE(4)
(UB, LB Controlled)
t
WC
t
CW(3)
t
BW
t
WP(2)
t
DH
t
DW
t
WR(5)
t
AW
t
AS(4)
High-Z
High-Z(8)
t
BLZ
t
WHZ(6)
High-Z
K6R4016C1B-C, K6R4016C1B-I
CMOS SRAM
PRELIMPreliminaryPPPPPPPPPINARY
Rev 2.1
- 9 -
June 1998
#1
44-SOJ-400
#44
25.58
0.12
1.125
0.005
MAX
28.98
1.141
MAX
0.148
3.76
1.19
( )
0.047
1.27
( )
0.050
0.95
( )
0.0375
+0.10
0.43
-0.05
+0.004
0.017
-0.002
+0.10
0.71
-0.05
+0.004
0.028
-0.002
1.27
0.050
1
0
.
1
6
0
.
4
0
0
+0.10
0.20
-0.05
+0.004
0.008
-0.002
9.40
0.25
0.370
0.010
MIN
0.69
0.027
#22
#23
0.004
0.10
MAX
11.18
0.12
0.440
0.005
PACKAGE DIMENSIONS
Units:millimeters/Inches
44-TSOP2-400AF
0.002
#1
0.05
#22
#44
#23
0.35
0.10
0.014
0.004
0.80
0.0315
MIN.
0.047
1.20
MAX.
0.741
18.81
MAX.
18.41
0.10
0.725
0.004
11.76
0.20
0.463
0.008
+ 0.
10
- 0.0
5
0.50
+ 0.0
04
- 0.0
02
0.15
0.00
6
0.020
1
0
.
1
6
0
.
4
0
0
0.10
0.004
0~8
0.45 ~0.75
0.018 ~ 0.030
0.25
( )
0.010
( )
0.805
0.032
( )
MAX
1.00
0.10
0.039
0.004
PDF 
ZIP