24LC256 datasheet(2/9 Pages) ARTSCHIP

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24LC256

256K I

2CTM CMOS Serial EEPROM

www.artschip.com

1.0 ELECTRICAL CHARACTERISTICS

1.1 Maximum Ratings*

Vcc……………………………………………………7.0V

All inputs and outputs w.r.t. Vss………-0.6V to Vcc +1.0V

Storage temperature ………………….-65℃ to +150℃

Ambient temp. with power applied……-65℃ to +125℃

Soldering temperature of leads (10 seconds)……+300℃

ESD protection on all pins……………………….. ≥4kV

*Notice:

Stresses above those listed under “maximum

Ratings” may cause permanent damage to the device. This is

a stress rating only and functional operation of the device at

those or any other conditions above those indicated in the

operational listings of this specification is not implied.

Exposure to maximum rating conditions for external periods

may affect device reliability.

TABLE 1-1 PIN FUNCTION TABLE

Name

Function

A0,A1,A2

VSS

SDA

SCL

Vcc

User Configurable Chip Selects

Ground

Serial Data

Serial Clock

Write Protect input

+1.8 to 5.5 (24AA256)

+1.8 to 5.5V (24LC256)

TABLE 1-2

DC CHARACTERISTICS

All parameters apply across the

specified operating ranges unless

otherwise noted.

Industrial (I): Vcc=+1.8V to 5.5V

Tamb = -40℃ to +85℃

Automotive (E): Vcc=+4.5V to 5.5V Tamb=-40℃ to 125℃

Parameter

Symbol

Min

Max

Units

Conditions

A0,A1,A2,

SCL, SDA, and WP pins:

High level input voltage

Low level input voltage

Hysteresis of Schmitt Trigger

Inputs (SDA, SCL pins)

Low level output voltage

VIH

VIL

YHYS

VOL

0.7Vcc

0.05 Vcc

0.3Vcc

0.2Vcc

0.40

Vcc ≥2.5V

Vcc <2.5V

Vcc ≥2.5V (Note)

IOL=3.0mA @ Vcc=4.5V

IOL=2.1mA @ Vcc=2.5V

Input leakage current

ILI

-10

µA

VIN = Vss or Vcc, WP=Vss

VIN=Vss or Vcc, WP=Vcc

Output leakage current

ILO

-10

µA

VOUT=Vss or Vcc

Pin capacitance

(all inputs/outputs)

CIN, COUT

Vcc=5.0V (Note)

Tamb=25℃, fc=1MHz

Icc Write

Vcc=5.5V

Operating Current

Icc Read

400

µA

Vcc=5.5V, SCL=400kHz

Standby current

Iccs

µA

SCL=SDA=Vcc=5.5V

A0,A1,A2,WP=Vss

Note:

This parameter is periodically sampled and not 100% tested..

FIGURE 1-1: BUS TIMING DATA

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