1

Features

– 5V Read

– 5V Reprogramming

µs/Byte Typical

– 50 mA Active Current

– 100

µA CMOS Standby Current

Description

The AT49F080 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.

The device contains a user-enabled “boot block” protection feature. Two versions of

the feature are available: the AT49F080 locates the boot block at lowest order

addresses (“bottom boot”); the AT49F080T locates it at highest order addresses (“top

boot”).

8-Megabit

(1M x 8)

5-volt Only

Flash

Memory

AT49F080

AT49F080T

AT49F080/080T

0584B-A–8/97

Pin Configurations

Pin Name

Function

A0 - A19

Addresses

CE

Chip Enable

OE

Output Enable

WE

Write Enable

RESET

Reset

RDY/BUSY

Ready/Busy Output

I/O0 - I/O7

Data Inputs/Outputs

NC

No Connect

CBGA Top View

A

B

C

D

E

F

1

234567

A5

A4

A6

A3

A2

A1

A8

A7

A9

I/O1

A0

I/O0

A11

A10

RST

NC

I/O3

I/O2

NC

VCC

CE

VCC

GND

GND

A12

A13

A14

I/O4

I/O6

I/O5

A15

NC

A16

I/O7

OE

RY/BY

A17

A18

A19

NC

NC

WE

(continued)

SOIC

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

NC

RESET

A11

A10

A9

A8

A7

A6

A5

A4

NC

NC

A3

A2

A1

A0

I/O0

I/O1

I/O2

I/O3

GND

GND

VCC

CE

A12

A13

A14

A15

A16

A17

A18

A19

NC

NC

NC

NC

WE

OE

RDY/BUSY

I/O7

I/O6

I/O5

I/O4

VCC

TSOP Top VIew

Type 1

A17

A16

A14

A15

A12

CE

A13

A10

A8

A9

RESET

A11

NC

VCC

1

2

4

3

6

5

10

9

7

8

14

13

11

12

I/O2

I/O3

I/O1

I/O0

VCC

I/O4

GND

GND

I/O6

I/O5

RDY/BUSY

I/O7

OE

WE

33

32

30

31

28

27

29

36

34

35

38

37

39

40

25

26

A1

A0

15

16

A7

A6

A5

20

19

A2

A3

22

21

23

24

17

18

A4

A19

A18

NC

NC