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DS21226A-page 2

Preliminary

© 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

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 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 extended peri-

ods may affect device reliability.

TABLE 1-1:

PIN FUNCTION TABLE

Name

Function

SDA

SCL

NC

EDS

Ground

Serial Data

Serial Clock

+2.5V to 5.5V Power Supply

No Internal Connection

External Device Select Output

TABLE 1-2:

DC CHARACTERISTICS

All parameters apply across the speci-

fied operating ranges unless otherwise

noted.

Commercial (C):

Tamb =

0

°C to +70°C

Industrial (I):

Tamb = -40

°C to +85°C

Parameter

Symbol

Min.

Max.

Units

Conditions

SCL and SDA pins:

High level input voltage

V

Low level input voltage

V

Hysteresis of Schmitt trigger inputs

—V

Low level output voltage

(SDA and EDS pins)

.40

V

Input leakage current

-10

10

Output leakage current

-10

10

Pin capacitance (all inputs/outputs)

—10

pF

Tamb = 25

°C, f = 1 MHz

Operating current

—

3

mA

—

1

mA

Standby current

—50

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