4-Megabit

(256K x 16)

3-volt Only

CMOS Flash

Memory

AT49BV4096

AT49LV4096

Preliminary

Features

- 2.7V Read

- 5V Program/Erase

- One 8K Words (16K bytes) Boot Block with Programming Lockout

- Two 8K Words (16K bytes) Parameter Blocks

- One 232K Words (464K bytes) Main Memory Array Block

- 25 mA Active Current

- 50

µA CMOS Standby Current

Pin Configurations

Pin Name

Function

A0 - A17

Addresses

CE

Chip Enable

OE

Output Enable

WE

Write Enable

RESET

Reset

Program/Erase

Power Supply

I/O0 - I/O15

Data

Inputs/Outputs

NC

No Connect

The AT49BV4096 and AT49LV4096 are 3-volt, 4-megabit Flash Memories organized

as 256K words of 16 bits each. Manufactured with Atmel’s advanced nonvolatile

CMOS technology, the devices offer access times to 120 ns with power dissipation of

just 67 mW at 2.7V read. When deselected, the CMOS standby current is less than

50

µA.

To allow for simple in-system reprogrammability, the AT49BV4096/LV4096 does not

require high input voltages for programming. Reading data out of the device is similar

to reading from an EPROM; it has standard CE, OE, and WE inputs to avoid bus

Description

(continued)

AT49BV4096/LV4096

A13

A12

A10

A11

A8

NC

A9

NC

NC

NC

RESET

VPP

WE

NC

1

2

4

3

6

5

10

9

7

8

14

13

11

12

I/O3

I/O11

I/O10

I/O2

I/O12

I/O5

I/O4

VCC

I/O6

I/O13

I/O7

I/O14

I/O15

GND

41

40

38

39

36

35

37

44

42

43

46

45

47

48

33

34

I/O1

I/O9

15

16

A17

A7

A6

20

19

I/O8

I/O0

30

29

31

32

17

18

A5

A15

A14

NC

A16

21

22

23

24

25

26

27

28

A4

A3

A2

A1

GND

OE

CE

A0

TSOP Top View

Type 1

RESET

A8

A9

A10

A11

A12

A13

A14

A15

A16

NC

GND

I/O15

I/O7

I/O14

I/O6

I/O13

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

WE

I/O5

I/O12

25

26

NC

A17

A7

A6

A5

A4

A3

A2

A1

GND

I/O0

I/O8

I/O1

I/O9

I/O2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

VPP

I/O10

I/O3

19

20

21

22

I/O4

VCC

23

24

CE

OE

I/O11

A0

SOIC (SOP)

0874A–5/97