128Kx32 EEPROM MODULE
SMD 5962-94585
WE128K32-XXX
FEATURES
Access Times of 125, 140, 150, 200, 250, 300ns
Packaging:
• 66-pin, PGA Type, 27.3mm (1.075") square, Hermetic
Ceramic HIP (Package 400)
• 68 lead, 22.4mm sq. CQFP (G2T), 4.57mm (0.180") high,
(Package 509)
Organized as 128Kx32; User Configurable as 256Kx16 or
512Kx8
Write Endurance 10,000 Cycles
Data Retention Ten Years Minimum (at +25°C)
Commercial, Industrial and Military Temperature Ranges
Low Power CMOS
Automatic Page Write Operation
*This product is subject to change without notice.
Page Write Cycle Time: 10ms Max
Data Polling for End of Write Detection
Hardware and Software Data Protection
TTL Compatible Inputs and Outputs
5 Volt Power Supply
Built-in Decoupling Caps and Multiple Ground Pins for Low
Noise Operation
Weight
WE128K32-XG2TX – 8 grams typical
WE128K32-XH1X – 13 grams typical
FIGURE 1 – PIN CONFIGURATION FOR WE128K32N-XH1X
TOP VIEW
1
I/O
8
I/O
9
I/O
10
A
13
A
14
A
15
A
16
NC
I/O
0
I/O
1
I/O
2
11
22
12
WE
2
#
CS
2
#
GND
I/O
11
A
10
A
11
A
12
V
CC
CS
1
#
NC
I/O
3
33
23
I/O
15
I/O
14
I/O
13
I/O
12
OE#
NC
WE
1
#
I/O
7
I/O
6
I/O
5
I/O
4
I/O
24
I/O
25
I/O
26
A
6
A
7
NC
A
8
A
9
I/O
16
I/O
17
I/O
18
44
34
V
CC
CS
4
#
WE
4
#
I/O
27
A
3
A
4
A
5
WE
3
#
CS
3
#
GND
I/O
19
55
45
I/O
31
I/O
30
I/O
29
I/O
28
A
0
A
1
A
2
I/O
23
I/O
22
I/O
21
I/O
20
66
OE#
A
0-16
128K x 8
W E
1
# CS
1
#
PIN DESCRIPTION
56
I/O0-31
A0-16
WE1-4#
CS1-4#
OE#
V
CC
GND
NC
Data Input/Output
Address Inputs
Write Enable
Chip Selects
Output Enable
Power Supply
Ground
Not Connected
BLOCK DIAGRAM
W E
2
# CS
2
#
W E
3
# CS
3
#
W E
4
# CS
4
#
128K x 8
128K x 8
128K x 8
8
8
8
8
I/O
0-7
I/O
8-15
I/O
16-23
I/O
24-31
Mercury Corp. - Memory and Storage Solutions • (602) 437-1520 • www.mrcy.com
1
4315.19E-0718-ss-WE128K32-XXX
MERCURY [ MERCURY UNITED ELECTRONICS INC ]
