WE256K8-150CC Просмотр технического описания (PDF) - White Electronic Designs => Micro Semi

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WE256K8-150CC

512Kx8 BIT CMOS EEPROM MODULE

White Electronic Designs => Micro Semi 

White Electronic Designs

WE512K8, WE256K8,

WE128K8-XCX

256Kx8 CMOS EEPROM, WE256K8-XCX, SMD 5962-93155

256Kx8 BIT CMOS EEPROM MODULE

FEATURES

Read Access Times of 150, 200ns

JEDEC Standard 32 Pin, Hermetic Ceramic DIP

(Package 302)

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:

2mA Standby Typical/90mA Operating Maximum

Automatic Page Write Operation

Internal Address and Data Latches for

512 Bytes, 1 to 64 Bytes/Row, Eight 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 2

Pin Configuration

Top View

NC 1

A16 2

A15 3

A12 4

A7 5

A6 6

A5 7

A4 8

A3 9

A2 10

A1 11

A0 12

I/O0 13

I/O1 14

I/O2 15

VSS

16

32

VCC

31 WE#

30 A17

29 A14

28 A13

27 A8

26 A9

25 A11

24 OE#

23 A10

22 CS#

21 I/O7

20 I/O6

19 I/O5

18 I/O4

17 I/O3

Pin Description

A0-18

I/O0-7

CS#

OE#

WE#

VCC

VSS

Address Inputs

Data Input/Output

Chip Select

Output Enable

Write Enable

+5.0V Power

Ground

Block Diagram

A0-14

I/O0-7

WE#

OE#

1

32K x 8

2

32K x 8

8

32K x 8

A15

A16

A17

CS#

Decoder

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

May 2000

Rev. 1

2

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

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