1

1-Megabit

2.7-volt Only

Serial

DataFlash

®

AT45DB011

Preliminary

Features

– Single Cycle Reprogram (Erase and Program)

– 512 Pages (264 Bytes/Page) Main Memory

µs Typical Page to Buffer Transfer Time

– 4 mA Active Read Current Typical

–2

µA CMOS Standby Current Typical

Description

The AT45DB011 is a 2.7-volt only, serial interface Flash memory suitable for in-sys-

tem reprogramming. Its 1,081,344 bits of memory are organized as 512 pages of 264

bytes each. In addition to the main memory, the AT45DB011 also contains one SRAM

data buffer of 264 bytes. Unlike conventional Flash memories that are accessed ran-

domly with multiple address lines and a parallel interface, the DataFlash uses a serial

interface to sequentially access its data. The simple serial interface facilitates hard-

Rev. 1103C–08/98

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)

TSSOP Top View

Type 1

1

2

3

4

5

6

7

14

13

12

11

10

9

8

RDY/BUSY

RESET

WP

VCC

GND

SCK

SO

CS

NC

NC

NC

NC

NC

SI

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

8

7

6

5

SI

SCK

RESET

CS

SO

GND

VCC

WP

Note: PLCC package pins 16

and 17 are DON’T CONNECT

AT45DB011

Preliminary 16-

Megabit 2.7-volt

Only Serial

DataFlash