Datasheet > 存储 > 闪存> AT45DB021A

AT45DB021A

更新时间： 2024-11-13 04:49:51

品牌	Logo	应用领域
爱特美尔 - ATMEL		闪存
页数	文件大小	规格书
28页	396K
描述
2-megabit 2.7-volt Only Serial DataFlash

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中文翻译

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数据手册

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AT45DB021A 数据手册

Features

• 100% Compatible to AT45D021

• Single 2.7V - 3.6V Supply

• Serial Interface Architecture

• Page Program Operation

– Single Cycle Reprogram (Erase and Program)

– 1024 Pages (264 Bytes/Page) Main Memory

• Optional Page and Block Erase Operations

• Two 264-byte SRAM Data Buffers – Allows Receiving of Data

while Reprogramming of Nonvolatile Memory

• Continuous Read Capability through Entire Array

• Internal Program and Control Timer

• Low Power Dissipation

2-megabit

2.7-volt Only

Serial

– 4 mA Active Read Current Typical

– 2 µA CMOS Standby Current Typical

• 13 MHz Max Clock Frequency

• Hardware Data Protection Feature

DataFlash^®

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

• CMOS and TTL Compatible Inputs and Outputs

• Commercial and Industrial Temperature Ranges

AT45DB021A

Description

The AT45DB021A is a 2.7-volt only, serial interface Flash memory suitable for

in-system reprogramming. Its 2,162,688 bits of memory are organized as 1024 pages

of 264 bytes each. In addition to the main memory, the AT45DB021A also contains

two SRAM data buffers of 264 bytes each. The buffers allow receiving of data while a

page in the main memory is being reprogrammed. Unlike conventional Flash

(continued)

Recommend using

AT45DB021B for new

designs.

Pin Configurations

TSOP Top View

Pin Name

Function

Type 1

Chip Select

Serial Clock

Serial Input

Serial Output

RDY/BUSY

RESET

SCK

VCC

GND

Hardware Page Write

Protect Pin

SCK

RESET

Chip Reset

Ready/Busy

PLCC

RDY/BUSY

SOIC

GND

SCK

VCC

SCK

29 WP

28 RESET

27 RDY/BUSY

26 NC

RESET

RDY/BUSY

25 NC

NC 10

NC 11

NC 12

NC 13

24 NC

23 NC

22 NC

21 NC

Rev. 1642C–01/01

Note: PLCC package pins 16

and 17 are DON’T CONNECT.

12 3 4 5 6 7...28

中文翻译

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与AT45DB021A相关器件

型号	品牌	获取价格	描述	数据表
AT45DB021A-JC	ATMEL	获取价格	2-megabit 2.7-volt Only Serial DataFlash
AT45DB021A-JI	ATMEL	获取价格	2-megabit 2.7-volt Only Serial DataFlash
AT45DB021A-RC	ATMEL	获取价格	2-megabit 2.7-volt Only Serial DataFlash
AT45DB021A-RI	ATMEL	获取价格	2-megabit 2.7-volt Only Serial DataFlash
AT45DB021A-TC	ATMEL	获取价格	2-megabit 2.7-volt Only Serial DataFlash
AT45DB021A-TI	ATMEL	获取价格	2-megabit 2.7-volt Only Serial DataFlash
AT45DB021B	ATMEL	获取价格	2-megabit 2.7-volt Only DataFlash
AT45DB021B_05	ATMEL	获取价格	2-megabit 2.7-volt Only DataFlash
AT45DB021B-CC	ATMEL	获取价格	2-megabit 2.7-volt Only DataFlash
AT45DB021B-CI	ATMEL	获取价格	2-megabit 2.7-volt Only DataFlash