Datasheet > 24C256

24C256

更新时间： 2022-11-27 07:53:11

品牌	Logo	应用领域
爱特美尔 - ATMEL		可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
15页	228K
描述
2-Wire Serial EEPROMs

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数据手册

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24C256 数据手册

Features

• Low Voltage and Standard Voltage Operation

– 5.0 (V_CC= 4.5V to 5.5V)

– 2.7 (V_CC= 2.7V to 5.5V)

– 1.8 (V_CC= 1.8V to 3.6V)

• Internally Organized 16,384 x 8 and 32,768 x 8

• 2-Wire Serial Interface

• Schmitt Trigger, Filtered Inputs for Noise Suppression

• Bidirectional Data Transfer Protocol

• 1 MHz (5V), 400 kHz (2.7V) and 100 kHz (1.8V) Compatibility

• Write Protect Pin for Hardware and Software Data Protection

• 64-Byte Page Write Mode (Partial Page Writes Allowed)

• Self-Timed Write Cycle (5 ms typical)

• High Reliability

2-Wire Serial

EEPROMs

– Endurance: 100,000 Write Cycles

– Data Retention: 40 Years

– ESD Protection: > 4000V

128K (16,384 x 8)

• Automotive Grade and Extended Temperature Devices Available

• 8-Pin JEDEC PDIP, 8-Pin JEDEC and EIAJ SOIC, 14-Pin TSSOP, and

8-Pin Leadless Array Packages

256K (32,768 x 8)

AT24C128

AT24C256

Description

The AT24C128/256 provides 131,072/262,144 bits of serial electrically erasable and

programmable read only memory (EEPROM) organized as 16,384/32,768 words of 8

bits each. The device’s cascadable feature allows up to 4 devices to share a common

2-wire bus. The device is optimized for use in many industrial and commercial applica-

tions where low power and low voltage operation are essential. The devices are avail-

able in space-saving 8-pin JEDEC PDIP, 8-pin EIAJ, 8-pin JEDEC SOIC, 14-pin

TSSOP, and 8-pin LAP packages. In addition, the entire family is available in 5.0V

(4.5V to 5.5V), 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 3.6V) versions.

Pin Configurations

8-Pin PDIP

Pin Name

A₀to A₁

SDA

Function

VCC

Address Inputs

Serial Data

SCL

SDA

GND

SCL

Serial Clock Input

Write Protect

No Connect

8-Pin SOIC

VCC

14-Pin TSSOP

SCL

SDA

GND

VCC

8-Pin Leadless Array

VCC

SCL

SDA

GND

SCL

SDA

GND

Rev. 0670C–08/98

Bottom View

12 3 4 5 6 7...15

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