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W24100 Datasheet, PDF (1/11 Pages) Winbond – 128K X 8 CMOS STATIC RAM
Preliminary W24100
GENERAL DESCRIPTION
128K × 8 CMOS STATIC RAM
The W24100 is a normal-speed, very low-power CMOS static RAM organized as 131072 × 8 bits that
operates on a single 5-volt power supply. This device is manufactured using Winbond's high
performance CMOS technology.
FEATURES
• Low power consumption:
− Active: 385 mW (max.)
• Access time: 70 nS
• Single 5V power supply
• Fully static operation
• All inputs and outputs directly TTL compatible
• Three-state outputs
• Battery back-up operation capability
• Data retention voltage: 2V (min.)
• Packaged in 32-pin 600 mil DIP, 450 mil SOP,
standard type one TSOP (8 mm × 20 mm) and
small type one TSOP (8 mm × 13.4 mm)
PIN CONFIGURATIONS
BLOCK DIAGRAM
NC
1
A16
2
32
VDD
31
A15
A14
3
30
CS2
A12
4
A7
5
29
WE
28 A13
A6
6
27
A8
A5
7
26
A9
32-pin
A4
8
SOP
25
A11
A3
9
24 OE
A2
10
23 A10
A1
11
22
CS1
A0
12
21 I/O 8
I/O1 13
20 I/O 7
I/O2 14
19 I/O 6
I/O3 15
VSS
16
18 I/O5
17 I/O4
A11
1
A9
2
A8
3
A13
4
WE
5
CS2
6
A15
7
VDD
8
NC
9
A16
10
A14
11
A12
12
A7
13
A6
14
A5
15
A4
16
32-pin
TSOP
32
OE
31
A10
30
CS1
29
I/O8
28
I/O7
27
I/O6
26
I/O5
25
I/O4
24
VSS
23
I/O3
22
I/O2
21
I/O1
20
A0
19
A1
18
A2
17
A3
CLK GEN.
PRECHARGE CKT.
A16
A14
A12
R
A4
O
CORE CELL ARRAY
W
A3
1024 ROWS
D
A2
E
128 X 8 COLUMNS
C
A7
O
D
A6
E
R
A5
A9
I/O1
:
I/O8
DATA
CNTRL.
I/O CKT.
COLUMN DECODER
CLK
GEN.
WE
A15 A13 A8 A1 A0 A11A10
CS1
CS2
OE
PIN DESCRIPTION
SYMBOL
A0−A16
I/O1−I/O8
CS1, CS2
WE
OE
VDD
VSS
NC
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip Select Input
Write Enable Input
Output Enable Input
Power Supply
Ground
No Connection
Publication Release Date: October 1999
-1-
Revision A1