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DS21126B-page 3-2

© 1996 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

Soldering temperature of leads (10 seconds) ............. +300˚C

ESD protection on all pins

..................................................≥ 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:

PIN FUNCTION TABLE

Name

Function

A0..A2

User Configurable Chip Selects

Ground

SDA

Serial Address/Data I/O

SCL

Serial Clock

+4.5V to 5.5V Power Supply

NC

No Internal Connection

TABLE 1-2:

DC CHARACTERISTICS

FIGURE 1-1:

BUS TIMING START/STOP

Commercial (C):

Tamb = 0˚C to +70˚C

Industrial (I):

Tamb = -40˚C to +85˚C

Parameter

Symbol

Min

Max

Units

Conditions

A0, A1, A2, SCL and SDA pins:

High level input voltage

0.7 Vcc

—

V

Low level input voltage

—

0.3 Vcc

V

Hysteresis of SCL and SDA

0.05 Vcc

—

V

(Note 1)

Low level output voltage of SDA

—

0.40

V

Input leakage current

-10

10

Output leakage current

-10

10

Pin capacitance

(all inputs/outputs)

—10

pF

Tamb = 25˚C, Fclk = 1 MHz

Operating current

—

—

3

150

mA

µA

Standby current

—5

(1 typical)

Note 1: This parameter is periodically sampled and not 100% tested.

START

STOP

SCL

SDA