MOSEL VITELIC
1
V53C808L
HIGH PERFORMANCE
3.3 VOLT 1M x 8 EDO PAGE MODE
CMOS DYNAMIC RAM
PRELIMINARY
V53C808L Rev. 1.5 April 1998
HIGH PERFORMANCE
35
40
45
50
Max. RAS Access Time, (t
RAC
)
35 ns
40 ns
45 ns
50 ns
Max. Column Address Access Time, (t
CAA
)
18 ns
20 ns
22 ns
24 ns
Min. Extended Data Out Mode Cycle Time, (t
PC
)
14 ns
15 ns
17 ns
19 ns
Min. Read/Write Cycle Time, (t
RC
)
70 ns
75 ns
80 ns
90 ns
Features
s
1M x 8-bit organization
s
EDO Page Mode for a sustained data rate
of 67 MHz
s
RAS access time: 35, 40, 45, 50 ns
s
Low power dissipation
s
Read-Modify-Write, RAS-Only Refresh,
CAS-Before-RAS Refresh capability
s
Refresh Interval: 1024 cycles/16 ms
s
Available in 28-pin 400 mil SOJ and 28-pin
TSOP-II packages
s
Single +3.3V
0.3V Power Supply
s
TTL Interface
Description
The V53C808L is a ultra high speed 1,048,576 x
8 bit CMOS dynamic random access memory. The
V53C808H offers a combination of features: Page
Mode with Extended Data Output for high data
bandwidth, and Low CMOS standby current.
All inputs and outputs are TTL compatible. Input
and output capacitances are significantly lowered to
allow increased system performance. Page Mode
with Extended Data Output operation allows ran-
dom access of up to 1024 (x8) bits within a row with
cycle times as fast as 14 ns. The V53C808L is ide-
ally suited for graphics, digital signal processing
and high-performance computing systems.
Device Usage Chart
Operating
Temperature
Range
Package Outline
Access Time (ns)
Power
Temperature
Mark
K
T
35
40
45
50
Std.
0
C to 70
C
Blank
2
V53C808L Rev. 1.5 April 1998
MOSEL VITELIC
V53C808L
FAMILY
DEVICE
PKG
( t
RAC
)
SPEED
PWR.
V
5
3
C
35 (35 ns)
40 (40 ns)
45 (45 ns)
50 (50 ns)
TEMP.
BLANK (0
C to 70
C)
BLANK (NORMAL)
K (SOJ)
T (TSOP-II)
8
0
8
L
808L-01
Pin Names
A
0
A
9
Address Inputs
RAS
Row Address Strobe
CAS
Column Address Strobe
WE
Write Enable
OE
Output Enable
I/O
1
I/O
8
Data Input, Output
V
CC
+5V Supply
V
SS
0V Supply
NC
No Connect
Description
Pkg.
Pin Count
SOJ
K
28
TSOP-II
T
28
28-Pin Plastic SOJ
PIN CONFIGURATION
Top View
28-Pin Plastic TSOP-II
PIN CONFIGURATION
Top View
5
6
7
8
9
10
11
12
V
CC
I/O1
I/O2
I/O3
I/O4
WE
RAS
NC
NC
A0
A1
A2
A3
V
CC
1
2
3
4
808H-02
27
28
26
25
24
23
22
21
20
19
18
17
13
14
16
15
V
SS
I/O8
I/O7
I/O6
I/O5
CAS
OE
A9
A8
A7
A6
A5
A4
V
SS
400 mil
5
6
7
8
9
10
11
12
V
CC
I/O1
I/O2
I/O3
I/O4
WE
RAS
NC
NC
A0
A1
A2
A3
V
CC
1
2
3
4
808H-03
27
28
26
25
24
23
22
21
20
19
18
17
13
14
16
15
V
SS
I/O8
I/O7
I/O6
I/O5
CAS
OE
A9
A8
A7
A6
A5
A4
V
SS
400 mil
MOSEL VITELIC
V53C808L
3
V53C808L Rev. 1.5 April 1998
Absolute Maximum Ratings*
Ambient Temperature
Under Bias ..................................... 10
C to +80
C
Storage Temperature (plastic) ..... 55
C to +125
C
Voltage Relative to V
SS
.................1.0 V to +4.6 V
Data Output Current ..................................... 50 mA
Power Dissipation .......................................... 1.0 W
*Note: Operation above Absolute Maximum Ratings can
adversely affect device reliability.
Capacitance*
T
A
= 25
C, V
CC
= 3.3V
0.3V, V
SS
= 0 V
* Note: Capacitance is sampled and not 100% tested
Symbol
Parameter Typ.
Max.
Unit
C
IN1
Address Input
3
4
pF
C
IN2
RAS, CAS, WE, OE
4
5
pF
C
OUT
Data Input/Output
5
7
pF
Block Diagram
A 0
A 1
A7
A9
SENSE AMPLIFIERS
REFRESH
COUNTER
VCC
VSS
10
I/O 1
ADDRESS BUFFERS
AND PREDECODERS
X0 -X
ROW
DECODERS
1024
MEMORY
ARRAY
COLUMN DECODERS
DATA I/O BUS
Y0 -Y 9
1024 x 8
I/O
BUFFER
I/O2
I/O3
I/O4
OE CLOCK
GENERATOR
WE CLOCK
GENERATOR
CAS CLOCK
GENERATOR
RAS CLOCK
GENERATOR
OE
WE
CAS
RAS
9
I/O 5
I/O6
I/O7
I/O8
808H-04
1M x 8
4
V53C808L Rev. 1.5 April 1998
MOSEL VITELIC
V53C808L
DC and Operating Characteristics
T
A
= 0
C to 70
C, V
CC
= 3.3V
0.3V, V
SS
= 0 V, unless otherwise specified.
Symbol
Parameter
Access
Time
V53C808L
Unit
Test Conditions
Notes
Min.
Typ.
Max.
I
LI
Input Leakage Current
(any input pin)
10
10
m
A
V
SS
V
IN
V
CC
I
LO
Output Leakage Current
(for High-Z State)
10
10
m
A
V
SS
V
OUT
V
CC
RAS, CAS at V
IH
I
CC1
V
CC
Supply Current,
Operating
35
160
mA
t
RC
= t
RC
(min.)
1, 2
40
150
45
145
50
135
I
CC2
V
CC
Supply Current,
TTL Standby
2
mA
RAS, CAS at V
IH
other inputs
V
SS
I
CC3
V
CC
Supply Current,
RAS-Only Refresh
35
160
mA
t
RC
= t
RC
(min.)
2
40
150
45
145
50
135
I
CC4
V
CC
Supply Current,
EDO Page Mode
Operation
35
95
mA
Minimum cycle
1, 2
40
90
45
85
50
80
I
CC5
V
CC
Supply Current,
Standby, Output Enabled
2.0
mA
RAS = V
IH
, CAS = V
IL
other inputs
V
SS
1
I
CC6
V
CC
Supply Current,
CMOS Standby
2.0
mA
RAS
V
CC
0.2 V,
CAS
V
CC
0.2 V,
All other inputs
V
SS
V
CC
Supply Voltage
4.5
5.0
5.5
V
V
IL
Input Low Voltage
1
0.8
V
3
V
IH
Input High Voltage
2.4
V
CC
+ 1
V
3
V
OL
Output Low Voltage
0.4
V
I
OL
= 2 mA
V
OH
Output High Voltage
2.4
V
I
OH
= 2 mA
5
V53C808L Rev. 1.5 April 1998
MOSEL VITELIC
V53C808L
AC Characteristics
T
A
= 0
C to 70
C, V
CC
= 3.3V
0.3V, V
SS
= 0V unless otherwise noted
AC Test conditions, input pulse levels 0 to 3V
#
Symbol
Parameter
35
40
45
50
Unit
Notes
Min. Max. Min. Max. Min. Max. Min. Max.
1
t
RAS
RAS Pulse Width
35
75K
40
75K
45
75K
50
75K
ns
2
t
RC
Read or Write Cycle Time
70
75
80
90
ns
3
t
RP
RAS Precharge Time
25
25
25
30
ns
4
t
CSH
CAS Hold Time
35
40
45
50
ns
5
t
CAS
CAS Pulse Width
7
8
9
9
ns
6
t
RCD
RAS to CAS Delay
16
23
17
28
18
32
19
36
ns
7
t
RCS
Read Command Setup Time
0
0
0
0
ns
4
8
t
ASR
Row Address Setup Time
0
0
0
0
ns
9
t
RAH
Row Address Hold Time
6
7
8
9
ns
10
t
ASC
Column Address Setup Time
0
0
0
0
ns
11
t
CAH
Column Address Hold Time
4
5
6
7
ns
12
t
RSH (R)
RAS Hold Time (Read Cycle)
14
14
15
15
ns
13
t
CRP
CAS to RAS Precharge Time
5
5
5
5
ns
14
t
RCH
Read Command Hold Time
Referenced to CAS
0
0
0
0
ns
5
15
t
RRH
Read Command Hold Time
Referenced to RAS
0
0
0
0
ns
5
16
t
ROH
RAS Hold Time
Referenced to OE
8
8
9
10
ns
17
t
OAC
Access Time from OE
12
12
13
14
ns
18
t
CAC
Access Time from CAS (EDO)
12
12
13
14
ns
6, 7
19
t
RAC
Access Time from RAS
35
40
45
50
ns
6, 8, 9
20
t
CAA
Access Time from Column Address
18
20
22
24
ns
6, 7, 10
21
t
LZ
CAS to Low-Z Output
0
0
0
0
ns
16
22
t
HZ
Output buffer turn-off delay time
0
6
0
6
0
7
0
8
ns
16
23
t
AR
Column Address Hold Time
from RAS
28
30
35
40
ns
24
t
RAD
RAS to Column Address
Delay Time
11
17
12
20
13
23
14
26
ns
11
25
t
RSH (W)
RAS or CAS Hold Time in Write Cycle
12
12
13
14
ns
26
t
CWL
Write Command to CAS Lead Time
12
12
13
14
ns
27
t
WCS
Write Command Setup Time
0
0
0
0
ns
12, 13
28
t
WCH
Write Command Hold Time
5
5
6
7
ns
29
t
WP
Write Pulse Width
5
5
6
7
ns
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