1

16-megabit

2.7-volt Only

Serial

AT45DB161

Recommend using

AT45DB161B for new

designs.

Features

– Single Cycle Reprogram (Erase and Program)

– 4096 Pages (528 Bytes/Page) Main Memory

while Reprogramming of Nonvolatile Memory

– 4 mA Active Read Current Typical

– 3 µA CMOS Standby Current Typical

Description

The AT45DB161 is a 2.7-volt only, serial interface Flash memory suitable for

in-system reprogramming. Its 17,301,504 bits of memory are organized as 4096

pages of 528 bytes each. In addition to the main memory, the AT45DB161 also con-

tains two SRAM data buffers of 528 bytes each. The buffers allow receiving of data

Rev. 0807E–01/01

Pin Configurations

Pin Name

Function

CS

Chip Select

SCK

Serial Clock

SI

Serial Input

SO

Serial Output

WP

Hardware Page

Write Protect Pin

RESET

Chip Reset

RDY/BUSY

Ready/Busy

(continued)

TSOP Top View

Type 1

1

2

3

4

5

6

7

8

9

10

11

12

13

14

28

27

26

25

24

23

22

21

20

19

18

17

16

15

RDY/BUSY

RESET

WP

NC

NC

VCC

GND

NC

NC

NC

CS

SCK

SI

SO

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

PLCC

5

6

7

8

9

10

11

12

13

29

28

27

26

25

24

23

22

21

SCK

SI

SO

NC

NC

NC

NC

NC

NC

WP

RESET

RDY/BUSY

NC

NC

NC

NC

NC

NC

SOIC

1

2

3

4

5

6

7

8

9

10

11

12

13

14

28

27

26

25

24

23

22

21

20

19

18

17

16

15

GND

NC

NC

CS

SCK

SI

SO

NC

NC

NC

NC

NC

NC

NC

VCC

NC

NC

WP

RESET

RDY/BUSY

NC

NC

NC

NC

NC

NC

NC

NC

CBGA Top View

through Package

A

B

C

D

E

1

2345

NC

NC

NC

NC

NC

VCC

WP

RESET

NC

NC

GND

RDY/BSY

SI

NC

NC

SCK

CS

SO

NC

NC

NC

NC

NC

NC

Note: PLCC package pins 16

and 17 are DON’T CONNECT