24LC21

DS21095F-page 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

Ground

SDA

Serial Address/Data I/O

SCL

Serial Clock (Bi-Directional Mode)

VCLK

Serial Clock (Transmit-Only Mode)

+2.5V to 5.5V Power Supply

NC

No Connection

TABLE 1-2:

DC CHARACTERISTICS

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

Low level input voltage

—

—

V

V

Input levels on VCLK pin:

High level input voltage

Low level input voltage

2.0

—

.8

V

V

≥ 2.7V (Note 1)

Hysteresis of Schmitt trigger inputs

—

V

(Note 1)

Low level output voltage

—.4

V

Low level output voltage

—.6

V

Input leakage current

-10

10

Output leakage current

-10

10

Pin capacitance (all inputs/outputs)

—10

pF

Tamb = 25

Operating current

—

—

3

1

mA

mA

Standby current

—

—

30

100

µA

µA

(Note 2)

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