24LC256T-I/P datasheet, PDF - EEWORLD Datasheet

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24LC256T-I/P: Description16K X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8; Categorystorage; File Size1MB，44 Pages; ManufacturerMicrochip; Websitehttps://www.microchip.com

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24LC256T-I/P Overview

16K X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8

24LC256T-I/P Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 Cel
Minimum operating temperature	-40 Cel
Maximum supply/operating voltage	5.5 V
Minimum supply/operating voltage	1.7 V
Rated supply voltage	2.5 V
maximum clock frequency	0.4000 MHz
Processing package description	0.300 INCH, ROHS COMPLIANT, PLASTIC, DIP-8
Lead-free	Yes
EU RoHS regulations	Yes
China RoHS regulations	Yes
state	ACTIVE
Craftsmanship	CMOS
packaging shape	RECTANGULAR
Package Size	IN-LINE
Terminal form	THROUGH-HOLE
Terminal spacing	2.54 mm
terminal coating	MATTE TIN
Terminal location	DUAL
Packaging Materials	PLASTIC/EPOXY
Temperature level	INDUSTRIAL
memory width	8
organize	16K X 8
storage density	131072 deg
operating mode	SYNCHRONOUS
Number of digits	16384 words
Number of digits	16K
Memory IC type	I2C/2-WIRE SERIAL EEPROM
serial parallel	SERIAL
Maximum TWC of write cycle	5 ms

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24AA256/24LC256/24FC256

256K I

C 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

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, SOIJ, TSSOP, MSOP, DFN and TDFN pack-

ages. The 24AA256 is also available in the 8-lead Chip

Scale package.

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:

- Read current: 400 uA max. at 5.5V, 400 kHz

- Standby current: 1 uA max. at 3.6V, I-temp

• 2-Wire Serial Interface, I

C 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 One Million Erase/Write Cycles

• Data Retention >200 years

• Factory Programming Available

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

TDFN, TSSOP and MSOP

• 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/SOIJ

24XX256

SCL

SDA

TSSOP/MSOP

(1)

24XX256

SCL

SDA

24XX256

DFN/TDFN

8 V

7 WP

6 SCL

5 SDA

CS (Chip Scale)

(2)

A1 A0

SDA SCL V

(TOP DOWN VIEW,

BALLS NOT VISIBLE)

Note 1:

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

Note 2:

Available in I-temp, “AA” only.

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



1998-2018 Microchip Technology Inc.

DS20001203V-page 1

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