Datasheet > AT24C256B-10TU-2.7

AT24C256B-10TU-2.7

更新时间： 2024-11-19 03:01:51

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光电二极管
页数	文件大小	规格书
18页	306K
描述
EEPROM, 32KX8, Serial, PDSO8

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数据手册

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Features

• Low-voltage and Standard-voltage Operation

– 2.7 (V_CC= 2.7V to 5.5V)

– 1.8 (V_CC= 1.8V to 3.6V)

• Internally Organized as 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, 2.5V) 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 Max)

2-wire Serial

EEPROM

• High Reliability

– Endurance: One Million Write Cycles

– Data Retention: 40 Years

• Extended Temperature and Lead-free/Halogen-free Devices Available

• 8-lead JEDEC PDIP, 8-lead JEDEC 12

256K (32,768 x 8)

• SOIC, 8-lead MAP, 8-lead TSSOP and 8-ball dBGA2^TMPackages

Description

AT24C256B

The AT24C256B provides 262,144 bits of serial electrically erasable and programma-

ble read only memory (EEPROM) organized as 32,768 words of 8 bits each. The

device’s cascadable feature allows up to 8 devices to share a com mon 2-wire bus.

The device is optimized for use in many industrial and commercial applications where

low power and low voltage operation are essential. The devices are available in

space-saving 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead MAP, 8-lead TSSOP

and 8-ball dBGA2 packages. In addition, the entire family is available in 2.7V (2.7V to

5.5V) and 1.8V (1.8V to 3.6V) versions.

Preliminary

Pin Configurations

8-lead PDIP

8-lead SOIC

Pin Name

A0–A2

SDA

Function

VCC

Address Inputs

Serial Data

Serial Clock Input

Write Protect

No Connect

Ground

SCL

SDA

SCL

SDA

GND

SCL

8-lead dBGA2

8-lead TSSOP

VCC

SCL

SDA

GND

SCL

SDA

GND

8-lead MAP

VCC

SCL

SDA

GND

Rev. 0670O–SEEPR–7/04

12 3 4 5 6 7...18

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