24LC00-ESLASHST datasheet(4/34 Pages) MICROCHIP

4 / 34 page

24AA00/24LC00/24C00

DS21178H-page 4

 1996-2011 Microchip Technology Inc.

2.0

PIN DESCRIPTIONS

Pin Function Table

2.1

SDA Serial Data

This is a bidirectional pin 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

resistor to VCC (typical 10 k

 for 100 kHz, 2 k 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.

2.2

SCL Serial Clock

This input is used to synchronize the data transfer from

and to the device.

2.3

Noise Protection

The SCL and SDA inputs have Schmitt Trigger and

filter circuits which suppress noise spikes to assure

proper device operation even on a noisy bus.

Name

PDIP

SOIC

TSSOP

DFN(1)

TDFN(1)

SOT-23

Description

1, 2, 3

—

Not Connected

VSS

Ground

SDA

Serial Address/Data I/O

SCL

Serial Clock

Write-Protect Input

VCC

+1.8V to 5.5V Power Supply

Note 1:

The exposed pad on the DFN/TDFN packages can be connected to VSS or left floating.

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