AT49F040T-90TC Datasheet

IC型號(hào)：
AT49F040T-90TC
PDF描述：
ATMEL Corporation [4-Megabit 512K x 8 5-volt Only CMOS Flas...
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248.78KB
芯片廠家：
ATMEL

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Features

鈥?/div>

Single Voltage Operation

鈥?/div>

鈥?5V Read

鈥?5V Reprogramming

Fast Read Access Time - 70 ns

Internal Program Control and Timer

16K bytes Boot Block With Lockout

Fast Erase Cycle Time - 10 seconds

Byte By Byte Programming - 50

碌s/Byte

Hardware Data Protection

DATA Polling For End Of Program Detection

Low Power Dissipation

鈥?50 mA Active Current

鈥?100

碌A(chǔ)

CMOS Standby Current

Typical 10,000 Write Cycles

Description

The AT49F040 is a 5-volt-only in-system Flash Memory. Its 4 megabits of memory is

organized as 524,288 words by 8 bits. Manufactured with Atmel鈥檚 advanced nonvola-

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

of just 275 mW over the commercial temperature range. When the device is dese-

lected, the CMOS standby current is less than 100

碌A(chǔ).

The device contains a user-enabled 鈥渂oot block鈥?protection feature. Two versions of

the feature are available: the AT49F040 locates the boot block at lowest order

addresses (鈥渂ottom boot鈥?; the AT49F040T locates it at highest order addresses (鈥渢op

boot鈥?.

(continued)

4-Megabit

(512K x 8)

5-volt Only

CMOS

Flash Memory

AT49F040

AT49F040T

AT49F040/040T

Pin Configurations

Pin Name

A0 - A18

I/O0 - I/O7

Function

Addresses

Chip Enable

Output Enable

Write Enable

Data Inputs/Outputs

DIP Top View

AT49F040/040T

PLCC Top View

TSOP Top View

Type 1

Rev. 0998A-A鈥?1/98

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AT49F040T-90TC Datasheet

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