128Kx32 EEPROM MODULE
SMD 5962-94585
WE128K32-XXX
FEATURES
Access Times of 125, 140, 150, 200, 250, 300ns
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
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
Built-in Decoupling Caps and Multiple Ground Pins for Low
512Kx8
Noise Operation
Write Endurance 10,000 Cycles
Weight
Data Retention Ten Years Minimum (at +25°C)
Commercial, Industrial and Military Temperature Ranges
Low Power CMOS
WE128K32-XG2TX – 8 grams typical
WE128K32-XH1X – 13 grams typical
*This product is subject to change without notice.
Automatic Page Write Operation
FIGURE 1 – PIN CONFIGURATION FOR WE128K32N-XH1X
TOP VIEW
PIN DESCRIPTION
1
12
23
34
45
56
I/O0-31
A0-16
WE1-4#
CS1-4#
OE#
Data Input/Output
Address Inputs
Write Enable
Chip Selects
Output Enable
Power Supply
Ground
I/O8
I/O9
I/O10
A13
WE2#
CS2#
GND
I/O11
A10
I/O15
I/O24
I/O25
I/O26
A6
VCC
CS4#
WE4#
I/O27
A3
I/O31
I/O30
I/O29
I/O28
A0
I/O14
I/O13
I/O12
OE#
NC
VCC
GND
NC
Not Connected
A14
A7
A15
A11
NC
A4
A1
BLOCK DIAGRAM
A16
A12
WE1#
I/O7
A8
A5
A2
WE1 # CS1#
128K x 8
WE2 # CS2#
WE3 # CS3#
WE4 # CS4#
128K x 8
NC
VCC
A9
WE3#
CS3#
GND
I/O19
I/O23
I/O22
I/O21
I/O20
OE#
A0-16
I/O0
I/O1
I/O2
CS1#
NC
I/O6
I/O16
I/O17
I/O18
128K x 8
128K x 8
I/O5
I/O3
I/O4
8
8
8
8
11
22
33
44
55
66
I/O16-23
I/O24-31
I/O8-15
I/O0-7
1
Mercury Corp. - Memory and Storage Solutions • (602) 437-1520 • www.mrcy.com
4315.19E-0718-ss-WE128K32-XXX