Rainbow Electronics W24100 User Manual
General description, Features, Pin configurations
Preliminary W24100
128K
×
8 CMOS STATIC RAM
Publication Release Date: October 1999
- 1 - Revision A1
GENERAL DESCRIPTION
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
V
A8
A9
WE
1
2
3
4
5
24
25
26
27
28
NC
A7
A6
A5
A12
A4
A3
A2
A1
6
7
8
9
20
21
22
23
A11
OE
A10
CS1
I/O 8
I/O 7
I/O 6
I/O5
10
11
12
13
16
17
18
19
A0
I/O2
I/O3
I/O1
14
15
I/O4
A13
V
A14
A16
32
31
30
29
A15
CS2
DD
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A3
A2
A1
A0
OE
A10
CS1
I/O7
I/O6
I/O5
I/O4
32-pin
TSOP
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
I/O8
A15
A12
A7
A6
A5
A4
V
CS2
WE
A13
A8
DD
A11
A9
NC
A14
A16
V
SS
I/O3
I/O2
I/O1
32-pin
SOP
BLOCK DIAGRAM
CORE CELL ARRAY
1024 ROWS
128 X 8 COLUMNS
DATA
CNTRL.
CLK
GEN.
R
O
W
D
E
C
O
D
E
R
A15
I/O CKT.
COLUMN DECODER
WE
OE
CLK GEN.
PRECHARGE CKT.
A13 A8 A1 A0 A11A10
CS1
CS2
A16
A14
A12
A4
A3
A2
A7
A6
A5
A9
I/O1
I/O8
:
PIN DESCRIPTION
SYMBOL
DESCRIPTION
A0
−
A16
Address Inputs
I/O1
−
I/O8
Data Inputs/Outputs
CS1, CS2
Chip Select Input
WE
Write Enable Input
OE
Output Enable Input
V
DD
Power Supply
V
SS
Ground
NC
No Connection