24AA256TE/SN datasheet, PDF - EEWORLD Datasheet

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24AA256TE/SN: Description256K I2C CMOS Serial EEPROM; File Size663KB，34 Pages; ManufacturerMicrochip; Websitehttps://www.microchip.com

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24AA256TE/SN Overview

256K I2C CMOS Serial EEPROM

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24AA256/24LC256/24FC256

256K I

™

CMOS Serial EEPROM

Device Selection Table

Part

Number

24AA256

24LC256

24FC256

Note 1:

Range

1.7-5.5V

2.5-5.5V

1.7-5.5V

Max. Clock

Frequency

400 kHz

(1)

400 kHz

1 MHz

(2)

Temp.

Ranges

I, E

• Temperature Ranges:

- Industrial (I):

- Automotive (E):

-40C to +85C

-40C to +125C

Description:

The Microchip Technology Inc. 24AA256/24LC256/

24FC256 (24XX256*) is a 32K x 8 (256 Kbit) Serial

Electrically Erasable PROM, capable of operation

across a broad voltage range (1.7V to 5.5V). It has

been developed for advanced, low-power applications

such as personal communications or data acquisition.

This device also has a page write capability of up to 64

bytes of data. This device is capable of both random

and sequential reads up to the 256K boundary.

Functional address lines allow up to eight devices on

the same bus, for up to 2 Mbit address space. This

device is available in the standard 8-pin plastic DIP,

SOIC, TSSOP, MSOP and DFN packages.

100 kHz for V

< 2.5V.

400 kHz for V

< 2.5V.

Features:

• Single Supply with Operation Down to 1.7V for

24AA256 and 24FC256 Devices, 2.5V for

24LC256 Devices

• Low-Power CMOS Technology:

- Active current 400 uA, typical

- Standby current 100 nA, typical

• 2-Wire Serial Interface, I

™

Compatible

• Cascadable up to Eight Devices

• Schmitt Trigger Inputs for Noise Suppression

• Output Slope Control to Eliminate Ground Bounce

• 100 kHz and 400 kHz Clock Compatibility

• Page Write Time 5 ms max.

• Self-Timed Erase/Write Cycle

• 64-Byte Page Write Buffer

• Hardware Write-Protect

• ESD Protection >4000V

• More than 1 Million Erase/Write Cycles

• Data Retention >200 years

• Factory Programming Available

• Packages Include 8-lead PDIP, SOIC, DFN,

TSSOP and MSOP

• Pb-Free and RoHS Compliant

Block Diagram

A0 A1A2 WP

HV Generator

I/O

Control

Logic

Memory

Control

Logic

XDEC

EEPROM

Array

Page Latches

I/O

SCL

YDEC

SDA

Sense Amp.

R/W Control

Package Types

PDIP/SOIC

24XX256

SCL

SDA

TSSOP/MSOP*

24XX256

SCL

SDA

24XX256

DFN

8 V

7 WP

6 SCL

5 SDA

Note:

* Pins A0 and A1 are no connects for the MSOP package only.

*24XX256 is used in this document as a generic part number for the 24AA256/24LC256/24FC256 devices.



2010 Microchip Technology Inc.

DS21203Q-page 1

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