Datasheet > EDI88257CXCB

EDI88257CXCB

更新时间： 2024-11-02 03:27:39

品牌	Logo	应用领域
WEDC		静态存储器
页数	文件大小	规格书
6页	285K
描述
256Kx8 Monolithic SRAM

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中文翻译

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数据手册

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EDI88257CXCB 数据手册

EDI88257C

White Electronic Designs

256Kx8 Monolithic SRAM

FEATURES

ꢀ

256Kx8 CMOS Static

The EDI88257C is a 2 Megabit 256Kx8 bit Monolithic

CMOS Static RAM.

ꢀ

Random Access Memory

The 32 pin DIP pinout adheres to the JEDEC standard for

the two megabit device, and is a pin replacement for the

256Kx8 module, EDI88257C. The device is upgradeable

to the 512Kx8 SRAM, the EDI88512C. Pin 1 becomes the

higher order address.

• Access Times of 70, 85, 100ns

• Data Retention Function (LP Versions)

• TTL Compatible Inputs and Outputs

• Fully Static, No Clocks

ALow Power version, EDI88257LP, offers a data retention

function for battery back-up opperation. Military product is

available compliant to Appendix A of MIL-PRF-38535.

ꢀ

JEDEC Approved Pinout

• 32 pin Ceramic DIP, 0.6 mils wide (Package 9)

Single +5V ( 10ꢀ) Supply Operation

■

FIGURE 1 – PIN CONFIGURATION

32 DIP

TOP VIEW

PIN DESCRIPTION

A0-17

Address Inputs

Write Enable

A16

A14

A12

A2 10

A1 11

A0 12

DQ0 13

DQ1 14

DQ2 15

V_SS16

32 V_CC

31 A15

30 A17

29 W#

28 A13

27 A8

Chip Enable

Output Enable

Data Inputs/Outputs

Power (+5V 10ꢀ%

Ground

DQ0-7

V_CC

V_SS

26 A9

25 A11

24 G#

23 A10

22 E#

21 I/O7

20 I/O6

19 I/O5

18 I/O4

17 I/O3

Not Connected

BLOCK DIAGRAM

Memory Array

Address

Buffer

Address

Decoder

I/O

Circuits

A0-17

DQ0-7

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

September 1999

Rev. 2

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

12 3 4 5 6

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EDI88257CXCC	WEDC	获取价格	256Kx8 Monolithic SRAM
EDI88257CXCI	WEDC	获取价格	256Kx8 Monolithic SRAM
EDI88257CXCM	WEDC	获取价格	256Kx8 Monolithic SRAM
EDI88257LP100CB	MICROSEMI	获取价格	Standard SRAM, 256KX8, 100ns, CMOS, CDIP32, 0.600 INCH, SIDE BRAZED, CERAMIC, DIP-32
EDI88257LP100CC	MICROSEMI	获取价格	Standard SRAM, 256KX8, 100ns, CMOS, CDIP32, 0.600 INCH, SIDE BRAZED, CERAMIC, DIP-32
EDI88257LP100CI	MICROSEMI	获取价格	Standard SRAM, 256KX8, 100ns, CMOS, CDIP32, 0.600 INCH, SIDE BRAZED, CERAMIC, DIP-32
EDI88257LP70CB	MICROSEMI	获取价格	Standard SRAM, 256KX8, 70ns, CMOS, CDIP32, 0.600 INCH, SIDE BRAZED, CERAMIC, DIP-32
EDI88257LP70CC	MICROSEMI	获取价格	Standard SRAM, 256KX8, 70ns, CMOS, CDIP32, 0.600 INCH, SIDE BRAZED, CERAMIC, DIP-32
EDI88257LP70CI	MICROSEMI	获取价格	Standard SRAM, 256KX8, 70ns, CMOS, CDIP32, 0.600 INCH, SIDE BRAZED, CERAMIC, DIP-32
EDI88257LP85CC	MICROSEMI	获取价格	Standard SRAM, 256KX8, 85ns, CMOS, CDIP32, 0.600 INCH, SIDE BRAZED, CERAMIC, DIP-32