WE512K8, WE256K8,
WE128K8-XCX
White Electronic Designs
512Kx8 CMOS EEPROM, WE512K8-XCX, SMD 5962-93091
512Kx8 BIT CMOS EEPROM MODULE
FIGURE 1
FEATURES
Pin Configuration
ꢀ
Read Access Times of 150, 200, 250, 300ns
Top View
ꢀ
JEDEC Standard 32 Pin, Hermetic Ceramic DIP
(Package 300)
A18
A16
A15
A12
A7
1
2
3
4
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VCC
WE#
A17
A14
A13
A8
ꢀ
Commercial, Industrial and Military Temperature
Ranges
5
A6
6
ꢀ
ꢀ
ꢀ
ꢀ
MIL-STD-883 Compliant Devices Available
Write Endurance 10,000 Cycles
A5
7
A9
A4
A3
A2
A1
8
9
A11
OE#
A10
CS#
I/O7
I/O6
I/O5
I/O4
I/O3
Data Retention at 25°C, 10 Years
10
11
12
13
14
15
16
Low Power CMOS Operation:
A0
I/O0
I/O1
I/O2
VSS
3mA Standby Typical/100mA Operating Maximum
Automatic Page Write Operation
ꢀ
Internal Address and Data Latches for
512 Bytes, 1 to 128 Bytes/Row, Four Pages
Page Write Cycle Time 10mS Max.
Data Polling for End of Write Detection
Hardware and Software Data Protection
TTL Compatible Inputs and Outputs
ꢀ
ꢀ
ꢀ
ꢀ
Pin Description
A0-18
I/O0-7
CS#
OE#
WE#
VCC
Address Inputs
Data Input/Output
Chip Select
Output Enable
Write Enable
+5.0V Power
Ground
VSS
Block Diagram
A0-16
I/O0-7
WE#
OE#
128K x 8
128K x 8
128K x 8
128K x 8
A17
A18
Decoder
CS#
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
May 2000
Rev. 1
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com