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AT49BV512-15PI

512K (64K x 8) Single 2.7-volt Battery-Voltage™ Flash Memory

Atmel Corporation 

Features

• Single Supply Voltage, Range 2.7V to 3.6V

• Single Supply for Read and Write

• Fast Read Access Time - 120 ns

• Internal Program Control and Timer

• 8K bytes Boot Block With Lockout

• Fast Erase Cycle Time - 10 seconds

• Byte By Byte Programming - 30 µs/Byte typical

• Hardware Data Protection

• DATA Polling For End Of Program Detection

• Low Power Dissipation

– 25 mA Active Current

– 50 µA CMOS Standby Current

• Typical 10,000 Write Cycles

Description

The AT49BV512 is a 3-volt-only, 512K Flash memories organized as 65,536 words of

8 bits each. Manufactured with Atmel’s advanced nonvolatile CMOS technology, the

devices offer access times to 120 ns with power dissipation of just 90 mW over the

commercial temperature range. When the devices are deselected, the CMOS standby

current is less than 50 µA.

To allow for simple in-system reprogrammability, the AT49BV512 does not require

high input voltages for programming. Three-volt-only commands determine the read

and programming operation of the device. Reading data out of the device is similar to

reading from an EPROM. Reprogramming the AT49BV512 is performed by erasing

the entire 1 megabit of memory and then programming on a byte by byte basis. The

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Pin Configurations

DIP Top View

Pin Name Function

A0 - A15

Addresses

CE

Chip Enable

OE

Output Enable

WE

Write Enable

I/O0 - I/O7 Data Inputs/Outputs

NC

No Connect

VSOP Top View (8 x 14 mm) or

TSOP Top View (8 x 20 mm)

Type 1

NC 1

NC 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 NC

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

A11 1

A9 2

A8 3

A13 4

A14 5

NC 6

WE 7

VCC 8

NC 9

NC 10

A15 11

A12 12

A7 13

A6 14

A5 15

A4 16

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

PLCC Top View

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

512K (64K x 8)

Single 2.7-volt

Battery-Voltage™

Flash Memory

AT49BV512

Rev. 1026C–09/98

1

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