1
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
WE32K32-XXX
White Electronic Designs
32Kx32 EEPROM MODULE, SMD 5962-94614
FEATURES
■ Access Times of 80*, 90, 120, 150ns
■ MIL-STD-883 Compliant Devices Available
■ Packaging:
68 lead, Hermetic CQFP (G2U), 122.4mm
(0.880") square, 3.56mm (0.140") height
(Package 510).
68 lead, Hermetic CQFP (G1U)1, 23.9mm
(0.940") square, 3.56mm (0.140") high (Pack
age 519)
68 lead, Hermetic CQFP (G1T), 23.9mm
(0.940") square, 4.06mm (0.160"), (Package
524)
66-pin, PGA Type, 1.075" square, Hermetic
Ceramic HIP (Package 400)
■ Data Retention at 25°C, 10 Years
■ Write Endurance, 10,000 Cycles
■ Organized as 32Kx32; User Configurable 64Kx16
or 128Kx8
■ Commercial, Industrial and Military Temperature
Ranges
■ Automatic Page Write Operation
■ 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
■ Low Power CMOS, 10mA Standby Typical
■ Built-in Decoupling Caps and Multiple Ground
Pins for Low Noise Operation
* 80nsspeedisnotfullycharacterizedandissubjecttochangeor
cancellation without notice.
NOTE 1: Package not recommended for new design
PIN DESCRIPTION
FIG. 1 PIN CONFIGURATION FOR WE32K32N-XH1X
TOP VIEW
I/O0-31 Data Inputs/Outputs
A0-14
Address Inputs
WE1-4
Write Enables
CS1-4
Chip Selects
OE
Output Enable
VCC
Power Supply
GND
Ground
NC
Not Connected
BLOCK DIAGRAM
October 2002 Rev. 3
32K x 8
8
I/O0-7
WE CS
1
32K x 8
8
I/O8-15
WE CS
2
32K x 8
8
I/O16-23
WE CS
3
32K x 8
8
I/O24-31
WE CS
4
A0-14
OE
I/O8
I/O9
I/O10
A13
A14
NC
I/O0
I/O1
I/O2
WE2
CS2
GND
I/O11
A10
A11
A12
VCC
CS1
NC
I/O3
I/O15
I/O14
I/O13
I/O12
OE
NC
WE1
I/O7
I/O6
I/O5
I/O4
I/O24
I/O25
I/O26
A6
A7
NC
A8
A9
I/O16
I/O17
I/O18
VCC
CS4
WE4
I/O27
A3
A4
A5
WE3
CS3
GND
I/O19
I/O31
I/O30
I/O29
I/O28
A0
A1
A2
I/O23
I/O22
I/O21
I/O20
11
22
33
44
55
66
1
12
23
34
45
56