Datasheet > CAT28C256TA12

CAT28C256TA12

更新时间： 2024-10-27 12:36:23

品牌	Logo	应用领域
安森美 - ONSEMI		可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
14页	132K
描述
256 kb Parallel EEPROM

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CAT28C256TA12 数据手册

CAT28C256

256 kb Parallel EEPROM

Description

The CAT28C256 is a fast, low power, 5 V−only CMOS Parallel

EEPROM organized as 32K x 8−bits. It requires a simple interface for

in−system programming. On−chip address and data latches,

self−timed write cycle with auto−clear and V power up/down write

http://onsemi.com

protection eliminate additional timing and protection hardware. DATA

Polling and Toggle status bits signal the start and end of the self−timed

write cycle. Additionally, the CAT28C256 features hardware and

software write protection.

The CAT28C256 is manufactured using ON Semiconductor’s

advanced CMOS floating gate technology. It is designed to endure

100,000 program/erase cycles and has a data retention of 100 years.

The device is available in JEDEC approved 28−pin DIP, 28−pin TSOP

or 32−pin PLCC packages.

TSOP−28

T13, H13 SUFFIX

CASE 318AE

Features

• Fast Read Access Times: 120/150 ns

• Low Power CMOS Dissipation:

– Active: 25 mA Max.

– Standby: 150 mA Max.

PDIP−28

P, L SUFFIX

CASE 646AE

PLCC−32

N, G SUFFIX

CASE 776AK

• Simple Write Operation:

– On−chip Address and Data Latches

– Self−timed Write Cycle with Auto−clear

• Fast Write Cycle Time:

PIN FUNCTION

− 5 ms Max.

Pin Name

Function

Address Inputs

• CMOS and TTL Compatible I/O

• Hardware and Software Write Protection

• Automatic Page Write Operation:

− 1 to 64 Bytes in 5 ms

− Page Load Timer

A −A

I/O −I/O

Data Inputs/Outputs

Chip Enable

Output Enable

Write Enable

5 V Supply

• End of Write Detection:

− Toggle Bit

− DATA Polling

Ground

• 100,000 Program/Erase Cycles

• 100 Year Data Retention

• Commercial, Industrial and Automotive Temperature Ranges

No Connect

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 14 of this data sheet.

Semiconductor Components Industries, LLC, 2009

Publication Order Number:

December, 2009 − Rev. 6

CAT28C256/D

12 3 4 5 6 7...14

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