AT28HC256E

更新时间： 2024-02-24 11:21:38

品牌	Logo	应用领域
爱特美尔 - ATMEL		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
16页	448K
描述
256 32K x 8 High Speed Parallel EEPROMs

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中文翻译

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数据手册

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AT28HC256E 数据手册

Features

• Fast Read Access Time - 70 ns

• Automatic Page Write Operation

– Internal Address and Data Latches for 64 Bytes

– Internal Control Timer

• Fast Write Cycle Times

– Page Write Cycle Time: 3 ms or 10 ms Maximum

– 1 to 64-Byte Page Write Operation

• Low Power Dissipation

– 80 mA Active Current

– 3 mA Standby Current

256 (32K x 8)

High Speed

Parallel

• Hardware and Software Data Protection

• DATA Polling for End of Write Detection

• High Reliability CMOS Technology

– Endurance: 10⁴or 10⁵Cycles

– Data Retention: 10 Years

• Single 5V ± 10% Supply

• CMOS and TTL Compatible Inputs and Outputs

• JEDEC Approved Byte-Wide Pinout

• Full Military, Commercial, and Industrial Temperature Ranges

EEPROMs

AT28HC256

Description

The AT28HC256 is a high-performance Electrically Erasable and Programmable

Read Only Memory. Its 256K of memory is organized as 32,768 words by 8 bits. Man-

ufactured with Atmel’s advanced nonvolatile CMOS technology, the AT28HC256

(continued)

Pin Configurations

TSOP

Top View

Pin Name

A0 - A14

Function

Addresses

A11

A10

Chip Enable

Output Enable

Write Enable

Data Inputs/Outputs

No Connect

I/O7

I/O6

I/O5

I/O4

I/O3

GND

I/O2

I/O1

I/O0

A13

VCC

A14

A12

I/O0 - I/O7

Don’t Connect

LCC, PLCC

Top View

CERDIP, PDIP, FLATPACK

Top View

PGA

Top View

A14

A12

28 VCC

27 WE

26 A13

25 A8

29 A8

28 A9

27 A11

26 NC

25 OE

24 A10

23 CE

22 I/O7

21 I/O6

24 A9

23 A11

22 OE

21 A10

20 CE

19 I/O7

18 I/O6

17 I/O5

16 I/O4

15 I/O3

A1 10

A0 11

A0 10

I/O0 11

I/O1 12

I/O2 13

GND 14

NC 12

I/O0 13

Rev. 0007G–10/98

Note: PLCC package pins 1 and

17 are DON’T CONNECT.

12 3 4 5 6 7...16

中文翻译

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与AT28HC256E相关器件

型号	品牌	获取价格	描述	数据表
AT28HC256E-12DC	ETC	获取价格	x8 EEPROM
AT28HC256E-12DI	ATMEL	获取价格	EEPROM, 32KX8, 120ns, Parallel, CMOS, CDIP28, 0.600 INCH, CERDIP-28
AT28HC256E-12DJ	ATMEL	获取价格	EEPROM, 32KX8, 120ns, Parallel, CMOS, CDIP28
AT28HC256E-12DM/883	ATMEL	获取价格	256 32K x 8 High Speed Parallel EEPROMs
AT28HC256E-12DM/883	MICROCHIP	获取价格	EEPROM, 32KX8, 120ns, Parallel, CMOS, CDIP28
AT28HC256E-12FM/883	ATMEL	获取价格	256 32K x 8 High Speed Parallel EEPROMs
AT28HC256E-12FM/883	MICROCHIP	获取价格	IC EEPROM 256KBIT 120NS 28FLATPK
AT28HC256E-12JC	ATMEL	获取价格	256 32K x 8 High Speed Parallel EEPROMs
AT28HC256E-12JCT/R	ATMEL	获取价格	EEPROM, 32KX8, 120ns, Parallel, CMOS, PQCC32, PLASTIC, LCC-32
AT28HC256E-12JI	ATMEL	获取价格	256 32K x 8 High Speed Parallel EEPROMs