WE256K8-200CQA 参数 Datasheet PDF下载

White Electronic Designs

WE512K8, WE256K8,

WE128K8-XCX

128Kx8 CMOS EEPROM, WE128K8-XCX, SMD 5962-93154

128Kx8 BIT CMOS EEPROM MODULE

FEATURES

Read Access Times of 150, 200ns

JEDEC Standard 32 Pin, Hermetic Ceramic DIP

(Package 300)

Commercial, Industrial and Military Temperature

Ranges

MIL-STD-883 Compliant Devices Available

Write Endurance 10,000 Cycles

Data Retention at 25°C, 10 Years

Low Power CMOS Operation:

1mA Standby Typical/70mA Operating

Automatic Page Write Operation

Internal Address and Data Latches for

256 Bytes, 1 to 64 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

FIGURE 3

Pin Configuration

Top View

NC

A16

A15

A12

A7

A6

A5

A4

A3

A2

A1

A0

I/O0

I/O1

I/O2

V

SS

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

V

CC

WE#

NC

A14

A13

A8

A9

A11

OE#

A10

CS#

I/O7

I/O6

I/O5

I/O4

I/O3

Pin Description

A0-18

I/O0-7

CS#

OE#

WE#

V

CC

V

SS

Address Inputs

Data Input/Output

Chip Select

Output Enable

Write Enable

+5.0V Power

Ground

Block Diagram

A

0-14

I/O

0-7

WE#

OE#

32K x 8

32K x 8

32K x 8

32K x 8

A

15

A

16

CS#

Decoder

White Electronic Designs Corp. reserves the right to change products or specifications without notice.

May 2000

Rev. 1

3

White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com