Datasheet > 存储 > 闪存> AT29C040A-20TC

AT29C040A-20TC

更新时间： 2024-11-20 12:28:35

品牌	Logo	应用领域
爱特美尔 - ATMEL		闪存
页数	文件大小	规格书
17页	258K
描述
4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory

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AT29C040A-20TC 数据手册

Features

• Fast Read Access Time – 90 ns

• 5-volt Only Reprogramming

• Sector Program Operation

– Single Cycle Reprogram (Erase and Program)

– 2048 Sectors (256 Bytes/Sector)

– Internal Address and Data Latches for 256 Bytes

• Internal Program Control and Timer

• Hardware and Software Data Protection

• Two 16K Bytes Boot Blocks with Lockout

• Fast Sector Program Cycle Time – 10 ms

• DATA Polling for End of Program Detection

• Low Power Dissipation

– 40 mA Active Current

– 100 µA CMOS Standby Current

• Typical Endurance > 10,000 Cycles

• Single 5V 10% Supply

4-megabit

(512K x 8)

5-volt Only

256-byte Sector

Flash Memory

• CMOS and TTL Compatible Inputs and Outputs

Description

The AT29C040A is a 5-volt only in-system Flash Programmable and Erasable Read

Only Memory (PEROM). Its 4 megabits of memory is organized as 524,288 words by

8 bits. Manufactured with Atmel’s advanced nonvolatile CMOS EEPROM technology,

the device offers access times up to 90 ns, and a low 220 mW power dissipation.

When the device is deselected, the CMOS standby current is less than 100 µA. The

device endurance is such that any sector can typically be written to in excess of

10,000 times. The programming algorithm is compatible with other devices in Atmel’s

5-volt only Flash family.

AT29C040A

PLCC Top View

Pin Configurations

Pin Name

A0 - A18

Function

29 A14

28 A13

27 A8

26 A9

25 A11

24 OE

23 A10

22 CE

21 I/O7

Addresses

Chip Enable

A2 10

A1 11

A0 12

I/O0 13

Output Enable

Write Enable

Data Inputs/Outputs

No Connect

I/O0 - I/O7

TSOP Top View – Type 1

DIP Top View

A11

A10

A18

A16

A15

A12

32 VCC

31 WE

30 A17

29 A14

28 A13

27 A8

A13

A14

A17

VCC

A18

A16

A15

A12

I/O7

I/O6

I/O5

I/O4

I/O3

GND

I/O2

I/O1

I/O0

26 A9

25 A11

24 OE

23 A10

22 CE

21 I/O7

20 I/O6

19 I/O5

18 I/O4

17 I/O3

A2 10

A1 11

A0 12

I/O0 13

I/O1 14

I/O2 15

GND 16

Rev. 0333I–FLASH–05/02

12 3 4 5 6 7...17

中文翻译

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与AT29C040A-20TC相关器件

型号	品牌	获取价格	描述	数据表
AT29C040A-20TI	ATMEL	获取价格	4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory
AT29C040A-20TU	ATMEL	获取价格	Flash, 512KX8, 200ns, PDSO32, 8 X 20 MM, PLASTIC, MO-142BD, TSOP1-32
AT29C040A-90JC	ATMEL	获取价格	4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory
AT29C040A-90JI	ATMEL	获取价格	4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory
AT29C040A-90JU	ATMEL	获取价格	4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory
AT29C040A-90PC	ATMEL	获取价格	4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory
AT29C040A-90PI	ATMEL	获取价格	4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory
AT29C040A-90TC	ATMEL	获取价格	4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory
AT29C040A-90TI	ATMEL	获取价格	4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory
AT29C040A-90TU	ATMEL	获取价格	4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory

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