AT49F4096A90TI ATMEL Corporation, AT49F4096A90TI Datasheet

AT49F4096A90TI

Manufacturer Part Number

AT49F4096A90TI

Description

TSOP48

Manufacturer

ATMEL Corporation

Datasheet

1.AT49F4096A-90TI.pdf (17 pages)

Specifications of AT49F4096A90TI

Date_code

06+

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Features

•

Description

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

RESET

I/O0 - I/O15

I/O15(A-1)

BYTE

Single-voltage Operation

Fast Read Access Time – 70 ns

Internal Erase/Program Control

Sector Architecture

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

Typical 10,000 Write Cycles

– 5V Read

– 5V Programming

– 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

– 50 mA Active Current

– 100 µA CMOS Standby Current

Function

Addresses

Chip Enable

Output Enable

Write Enable

Reset

Data Inputs/Outputs

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

A-1 (LSB Address Input, Byte Mode)

Selects Byte or Word Mode

No Connect

4-megabit

(512K x 8/

256K x 16)

Flash Memory

AT49F4096A

Rev. 1604F–FLASH–4/04

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