AT49F008 データシートの表示（PDF） - Atmel Corporation

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AT49F008

8-Megabit (1M x 8) 5-volt Only Flash Memory

Atmel Corporation 

Features

• Single Voltage Operation

– 5V Read

– 5V Reprogramming

• Fast Read Access Time - 90 ns

• Internal Program Control and Timer

• 16K bytes Boot Block With Lockout

• Fast Erase Cycle Time - 10 seconds

• Byte-By-Byte Programming - 10 µs/Byte 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

Description

The AT49F008 is a 5-volt-only in-system Flash Memory device. Its 8-megabits of

memory is organized as 1,024,576 words by 8-bits. Manufactured with Atmel’s

advanced nonvolatile CMOS technology, the device offers access times to 90 ns with

power dissipation of just 275 mW over the commercial temperature range. When the

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

Pin Configurations

(continued)

Pin Name

A0 - A19

CE

OE

WE

RESET

RDY/BUSY

I/O0 - I/O7

NC

Function

Addresses

Chip Enable

Output Enable

Write Enable

Reset

Ready/Busy Output

Data Inputs/Outputs

No Connect

8-Megabit

(1M x 8)

5-volt Only

Flash

Memory

AT49F008

TSOP Top VIew

Type 1

A16 1

A15 2

A14 3

A13 4

A12 5

A11 6

A9 7

A8 8

WE 9

RESET 10

NC 11

RDY/BUSY 12

A18 13

A7 14

A6 15

A5 16

A4 17

A3 18

A2 19

A1 20

40 A17

39 GND

38 NC

37 A19

36 A10

35 I/O7

34 I/O6

33 I/O5

32 I/O4

31 VCC

30 VCC

29 NC

28 I/O3

27 I/O2

26 I/O1

25 I/O0

24 OE

23 GND

22 CE

21 A0

Rev. 0972A–03/98

1

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