AT45 datasheet(1/20 Pages) ATMEL

부품명	AT45

상세설명	1-Megabit 5.0-volt Only Serial DataFlash

PDF	20 Pages

Scroll/Zoom	100%

제조업체	ATMEL [ATMEL Corporation]

홈페이지	http://www.atmel.com

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1 / 20 page

1

1-Megabit

5.0-volt Only

Serial

DataFlash

®

AT45D011

Preliminary

Features

• Single 4.5V - 5.5V Supply

• Serial Interface Architecture

• Page Program Operation

– Single Cycle Reprogram (Erase and Program)

– 512 Pages (264 Bytes/Page) Main Memory

• Optional Page and Block Erase Operations

• One 264-Byte SRAM Data Buffer

• Internal Program and Control Timer

• Fast Page Program Time – 7 ms Typical

• 120

µµµµs Typical Page to Buffer Transfer Time

• Low-Power Dissipation

– 15 mA Active Read Current Typical

–10

µµµµA CMOS Standby Current Typical

• 15 MHz Max Clock Frequency

• Hardware Data Protection Feature

• Serial Peripheral Interface (SPI) Compatible – Modes 0 and 3

• CMOS and TTL Compatible Inputs and Outputs

• Commercial and Industrial Temperature Ranges

Description

The AT45D011 is a 5.0-volt only, serial interface Flash memory suitable for in-system

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

bytes each. In addition to the main memory, the AT45D011 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. 1123A–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

SI

PLCC

5

6

7

8

9

10

11

12

13

29

28

27

26

25

24

23

22

21

SCK

SI

SO

NC

WP

RESET

RDY/BUSY

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

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ATMEL Corporation	AT45D021	200Kb / 18P	2-Megabit 5-volt Only Serial DataFlash
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	AT45DB081A	412Kb / 28P	8-megabit 2.7-volt Only Serial DataFlash
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