24LC256ISM Microchip Technology Inc., 24LC256ISM Datasheet

24LC256ISM

Manufacturer Part Number

24LC256ISM

Description

SOP-8

Manufacturer

Microchip Technology Inc.

Datasheets

1.24LC256ISM.pdf (12 pages)

2.24LC256ISM.pdf (12 pages)

3.24LC256ISM.pdf (12 pages)

Specifications of 24LC256ISM

Date_code

09+

Current page: 1 of 12
Download datasheet (158Kb)

DEVICE SELECTION TABLE

FEATURES

• Low power CMOS technology

• 2-wire serial interface bus, I

• Cascadable for up to eight devices

• Self-timed ERASE/WRITE cycle

• 64-byte page-write mode available

• 5 ms max write-cycle time

• Hardware write protect for entire array

• Output slope control to eliminate ground bounce

• Schmitt trigger inputs for noise suppression

• 100,000 erase/write cycles guaranteed

• Electrostatic discharge protection > 4000V

• Data retention > 200 years

• 8-pin PDIP and SOIC (208 mil) packages

• Temperature ranges:

DESCRIPTION

The Microchip Technology Inc. 24AA256/24LC256/

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

Electrically Erasable PROM, capable of operation

across a broad voltage range (1.8V 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. Func-

tional address lines allow up to eight devices on the

same bus, for up to 2M bit address space. This device

is available in the standard 8-pin plastic DIP and 8-pin

SOIC (208 mil) packages.

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

†

‡

C is a trademark of Philips Corporation.

100 kHz for V

100 kHz for E temperature range.

24AA256

24LC256

24FC256

1998 Microchip Technology Inc.

- Maximum write current 3 mA at 5.5V

- Maximum read current 400 µA at 5.5V

- Standby current 100 nA typical at 5.5V

- Industrial (I):

- Automotive (E):

Number

Part

1.8-5.5V

2.5-5.5V

Range

< 2.5V.

256K Bit I

-40 C to

-40 C to +125 C

Frequency

Max Clock

400 kHz

C compatible

1 MHz

24AA256/24LC256/24FC256

†

‡

+85 C

Ranges

Temp

™

I, E

CMOS Serial EEPROM

Preliminary

PACKAGE TYPE

BLOCK DIAGRAM

PDIP

SOIC

SDA

I/O

CONTROL

LOGIC

I/O

SCL

Vss

A0 A1 A2

CONTROL

MEMORY

LOGIC

XDEC

DS21203D-page 1

HV GENERATOR

PAGE LATCHES

R/W CONTROL

SCL

SDA

Vcc

SCL

SDA

SENSE AMP

EEPROM

ARRAY

YDEC

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