Datasheet > AT45

AT45

更新时间： 2022-10-12 00:35:15

品牌	Logo	应用领域
爱特美尔 - ATMEL		闪存
页数	文件大小	规格书
20页	155K
描述
1-Megabit 5.0-volt Only Serial DataFlash

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数据手册

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AT45 数据手册

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 µs Typical Page to Buffer Transfer Time

• Low-Power Dissipation

– 15 mA Active Read Current Typical

– 10 µA 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

1-Megabit

5.0-volt Only

Serial

DataFlash^®

Description

AT45D011

Preliminary

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-

(continued)

Pin Configurations

SOIC

Pin Name

Function

SCK

Chip Select

Serial Clock

Serial Input

Serial Output

GND

VCC

RESET

SCK

AT45DB011

Hardware Page

Write Protect Pin

Preliminary 16-

Megabit 2.7-volt

Only Serial

RESET

Chip Reset

Ready/Busy

PLCC

RDY/BUSY

TSSOP Top View

Type 1

DataFlash

RDY/BUSY

SCK

29 WP

RESET

28 RESET

27 RDY/BUSY

26 NC

VCC

GND

SCK

25 NC

NC 10

NC 11

NC 12

NC 13

24 NC

23 NC

22 NC

21 NC

Rev. 1123A–08/98

Note: PLCC package pins 16

and 17 are DON’T CONNECT

12 3 4 5 6 7...20

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