AT49F002N-90JI データシートの表示（PDF） - Atmel Corporation

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AT49F002N-90JI

2-megabit (256K x 8) 5-volt Only Flash Memory

Atmel Corporation 

Features

• Single-voltage Operation

– 5V Read

– 5V Reprogramming

• Fast Read Access Time - 55 ns

• Internal Program Control and Timer

• Sector Architecture

– One 16K Byte Boot Block with Programming Lockout

– Two 8K Byte Parameter Blocks

– Two Main Memory Blocks (96K, 128K Bytes)

• 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 AT49F002(N)(T) is a 5-volt only in-system reprogrammable Flash memory. Its 2

megabits of memory is organized as 262,144 words by 8 bits. Manufactured with

Atmel’s advanced nonvolatile CMOS technology, the device offers access times to 55

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

Pin Configurations

(continued)

DIP Top View

Pin Name

A0 - A17

CE

OE

WE

RESET

I/O0 - I/O7

DC

Function

Addresses

Chip Enable

Output Enable

Write Enable

RESET

Data Inputs/Outputs

Don’t Connect

* RESET 1

A16 2

A15 3

A12 4

A7 5

A6 6

A5 7

A4 8

A3 9

A2 10

A1 11

A0 12

I/O0 13

I/O1 14

I/O2 15

GND 16

32 VCC

31 WE

30 A17

29 A14

28 A13

27 A8

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

PLCC Top View

VSOP Top View (8 x 14 mm) or

TSOP Top View (8 x 20 mm)

Type 1

A7 5

A6 6

A5 7

A4 8

A3 9

A2 10

A1 11

A0 12

I/O0 13

29 A14

28 A13

27 A8

26 A9

25 A11

24 OE

23 A10

22 CE

21 I/O7

A11 1

A9 2

A8 3

A13 4

A14 5

A17 6

WE 7

VCC 8

* RESET 9

A16 10

A15 11

A12 12

A7 13

A6 14

A5 15

A4 16

*Note: This pin is a DC on the AT49F002(N)(T).

32 OE

31 A10

30 CE

29 I/O7

28 I/O6

27 I/O5

26 I/O4

25 I/O3

24 GND

23 I/O2

22 I/O1

21 I/O0

20 A0

19 A1

18 A2

17 A3

2-megabit

(256K x 8)

5-volt Only

Flash Memory

AT49F002

AT49F002N

AT49F002T

AT49F002NT

Not Recommended

for New Design

Contact Atmel to discuss

the latest design in trends

and options

Rev. 1017D–10/99

1

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