Datasheet > AT49F4096A-70C1I

AT49F4096A-70C1I

更新时间： 2024-11-07 23:32:51

品牌	Logo	应用领域
其他 - ETC		内存集成电路异步传输模式 ATM 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
19页	172K
描述
EEPROM

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中文翻译

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数据手册

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AT49F4096A-70C1I 数据手册

Features

• Single-voltage Operation

– 5V Read

– 5V Programming

• Fast Read Access Time – 70 ns

• Internal Erase/Program Control

• Sector Architecture

– One 8K Word (16K Bytes) Boot Block with Programming Lockout

– Two 4K Word (8K Bytes) Parameter Blocks

– One 240K Word (480K Bytes) Main Memory Array Block

• Fast Sector Erase Time – 10 Seconds

• Byte-by-byte or Word-by-word Programming – 10 µs Typical

• Hardware Data Protection

• Data Polling for End of Program Detection

• Low Power Dissipation

– 50 mA Active Current

– 100 µA CMOS Standby Current

• Typical 10,000 Write Cycles

4-megabit

(512K x 8/

256K x 16)

Flash Memory

Description

AT49F4096A

The AT49F4096A is a 5-volt, 4-megabit Flash memory organized as 524,288 words of

8 bits each or 256K words of 16 bits each. Manufactured with Atmel’s advanced non-

volatile CMOS technology, the device offers access times to 70 ns with power

dissipation of just 275 mW. When deselected, the CMOS standby current is less than

100 µA.

The device contains a user-enabled “boot block” protection feature. The AT49F4096A

locates the boot block at lowest order addresses (“bottom boot”).

To allow for simple in-system reprogrammability, the AT49F4096A does not require

high-input voltages for programming. Reading data out of the device is similar to read-

ing from an EPROM; it has standard CE, OE and WE inputs to avoid bus contention.

Reprogramming the AT49F4096A is performed by first erasing a block of data and

then programming on a byte-by-byte or word-by-word basis.

Pin Configurations

Pin Name

A0 - A17

Function

Addresses

Chip Enable

Output Enable

Write Enable

Reset

RESET

I/O0 - I/O15

I/O15(A-1)

Data Inputs/Outputs

I/O15 (Data Input/Output, Word Mode)

A-1 (LSB Address Input, Byte Mode)

BYTE

Selects Byte or Word Mode

No Connect

Rev. 1604E–FLASH–11/02

12 3 4 5 6 7...19

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