Rainbow Electronics W24512A - Manual

W24512A
64K
×
8 HIGH SPEED CMOS STATIC RAM
Publication Release Date: March 1999
- 1 - Revision A7
GENERAL DESCRIPTION
The W24512A is a high speed, low power CMOS static RAM organized as 65536
×
8 bits that
operates on a single 5-volt power supply. This device is manufactured using Winbond's high
performance CMOS technology.
FEATURES
• High speed access time: 15/20/25/35 nS
(max.)
• Low power consumption:
−
Active: 500 mW (typ.)
• Single +5V power supply
• Fully static operation
• All inputs and outputs directly TTL compatible
• Three-state outputs
• Available packages: 32-pin 300 mil SOJ,
skinny DIP, 450 mil SOP, and standard type
one TSOP
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
A1 0
CS1
I/O8
I/O7
I/O6
I/O5
10
11
12
13
16 17
18
19
A0
I/O2
I/O3
I/O1
14
15
I/O4
A13
V
A14
NC
32
31
30
29
A15
CS2
DD
SS
1
2
3
4
5
6
7
8
9
V DD 32-pin
TSOP
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
V SS
A13
A11
A9
A8
WE
CS2
A15
NC
NC
A14
A12
A7
A6
A5
A4
OE
A10
CS1
I/O8
I/O7
I/O6
I/O5
I/O4
I/O3
I/O2
I/O1
A0
A1
A2
A3 10
11
12
13
14
15
16
BLOCK DIAGRAM
A0
.
CS1
A15
WE
I/O1
I/O8
OE
C O RE
V
V
.
. DATA I/O
ARRAY
DECODER CORE
CS2
.
CONTROL
DD
SS
PIN DESCRIPTION
SYMBOL DESCRIPTION
A0
−
A15 Address Inputs
I/O1
−
I/O8 Data Inputs/Outputs
CS1, CS2
Chip Select Inputs
WE Write Enable Input
OE Output Enable Input
V DD Power Supply
V SS Ground
NC No Connection