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 (182Kb)

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

• 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

(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. 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, and 8-pin SOIC (208 mil)

packages.

*24xx256 is used in this document as a generic part number for the 24AA256/24LC256 devices.

†

‡

C is a trademark of Philips Corporation.

24AA256

24LC256

100 kHz for V

- Maximum write current 3 mA at 5.5V

- Maximum read current 400 A at 5.5V

- Standby current 100 nA typical at 5.5V

- Industrial (I):

- Automotive (E):

1998 Microchip Technology Inc.

Number

100 kHz for E temperature range.

Part

1.8-5.5V

2.5-5.5V

Range

< 2.5V.

256K I

-40 C to

-40 C to +125 C

Frequency

Max Clock

400 kHz

C compatible

†

‡

+85 C

™

Ranges

Temp

CMOS Serial EEPROM

I, E

24AA256/24LC256

PACKAGE TYPE

BLOCK DIAGRAM

PDIP

SOIC

SDA

I/O

CONTROL

LOGIC

I/O

SCL

A0…A2

Vss

CONTROL

MEMORY

LOGIC

XDEC

DS21203C-page 1

HV GENERATOR

PAGE LATCHES

R/W CONTROL

Vcc

SCL

SDA

SCL

SDA

SENSE AMP

EEPROM

ARRAY

YDEC

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