24LC01B/02B Modules

DS21222A-page 2

© 1997 Microchip Technology Inc.

1.0

ELECTRICAL CHARACTERISTICS

1.1

Maximum Ratings*

Storage temperature ..................................... -65˚C to +150˚C

Ambient temp. with power applied................. -65˚C to +125˚C

ESD protection on all pads.............................................

≥4 kV

*Notice: Stresses above those listed under “Maximum ratings”

may cause permanent damage to the device. This is a stress rat-

ing 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 extended periods may affect device reliability.

TABLE 1-1:

PAD FUNCTION TABLE

1.2

Pad Descriptions

1.2.1

SDA (Serial Data)

This is a bi-directional pad used to transfer addresses

and data into and data out of the device. It is an open

drain terminal, therefore the SDA bus requires a pull-up

Ω for 100 kHz, 2 KΩ for

400 kHz).

For normal data transfer SDA is allowed to change only

during SCL low. Changes during SCL high are reserved

for indicating the START and STOP conditions.

1.2.2

SCL (Serial Clock)

This input is used to synchronize the data transfer from

and to the device.

Name

Function

SDA

SCL

Ground

Serial Address/Data I/O

Serial Clock

+2.5V to 5.5V Power Supply

TABLE 1-1

DC CHARACTERISTICS

All Parameters apply across the recom-

mended operating ranges unless other-

wise noted.

Commercial (C):

Parameter

Symbol

Min.

Max.

Units

Conditions

SCL and SDA pins:

High level input voltage

V

(Note)

Low level input voltage

V

(Note)

Hysteresis of Schmitt trigger inputs

—

V

Vcc

≥ 2.5V (Note)

Low level output voltage

0.40

V

Input leakage current

-10

10

µA

Output leakage current

-10

10

µA

Pin capacitance (all inputs/outputs)

—

10

pF

Tamb = 25˚C, f = 1 MHz

Operating current

—

3

mA

—

1

mA

Standby current

—

100

µA

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