Rev. 1.00

2

January 29, 2013

HT24LC256

Absolute Maximum Ratings

StorageTemperature..................-50°Cto125°C

OperatingTemperature..................-40°Cto85°C

Note:Thesearestressratingsonly.Stressesexceedingtherangespecifiedunder“AbsoluteMaximumRatings”

maycausesubstantialdamagetothedevice.Functionaloperationofthisdeviceatotherconditionsbeyond

thoselistedinthespecificationisnotimpliedandprolongedexposuretoextremeconditionsmayaffect

devicereliability.

D.C Characteristics

Ta=-40ºCto85ºC

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Conditions

Operating Voltage

—

—

2.2

—

5.5

V

Operating Current

5V

Read at 100kHz

—

—

2

mA

Operating Current

5V

Write at 100kHz

—

—

5

mA

Input Low Voltage

—

—

-1

—

V

Input High Voltage

—

—

—

V

Output Low Voltage

2.4V

—

—

0.4

V

Input Leakage Current

5V

—

0.1

2

μA

Output Leakage Current

5V

—

0.1

1

μA

Standby Current

5V

—

—

3

μA

Standby Current

2.2V

—

—

2

μA

Input Capacitance (See note)

—

—

—

6

pF

Output Capacitance (See note)

—

—

—

8

pF

Note:Theseparametersareperiodicallysampledbutnot100%tested.

A.C Characteristics

Ta=-40ºCto85ºC

Symbol

Parameter

Remark

Unit

Min.

Max.

Min.

Max.

Clock Frequency

—

—

400

—

1000

kHz

Clock High Time

—

600

—

400

—

ns

Clock Low Time

—

1200

—

600

—

ns

SDA and SCL Rise Time

Note

—

300

—

300

ns

SDA and SCL Fall Time

Note

—

300

—

300

ns

START Condition Hold Time After this period the first clock pulse

is generated

600

—

250

—

ns

START Condition Setup Time Only relevant for repeated START

condition

600

—

250

—

ns

Data Input Hold Time

—

0

—

0

—

ns

Data Input Setup Time

—

150

—

100

—

ns

STOP Condition Setup Time

—

600

—

250

—

ns

Output Valid from Clock

—

—

900

—

600

ns

Bus Free Time

Time in which the bus must be free

before a new transmission can start 1200

—

500

—

ns

Input Filter Time

(SDA and SCL Pins)

Noise suppression time

—

50

—

50

ns

Write Cycle Time

—

—

5

—

5

ms

Endurance 25ºC, Page Mode

5.0V

1,000,000

Write

Cycles

Note:Theseparametersareperiodicallysampledbutnot100%tested.Forrelativetiming,refertotimingdiagrams.