TCA6408_09 datasheet(20/31 Pages) TI

Part #	TCA6408

Description	LOW-VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

PDF	31 Pages

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Manufacturer	TI [Texas Instruments]

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SDA

SCL

Start

ACKorReadCycle

RESET

SDA LOADCONFIGURATION

VCCI

R =1kW

C =50pF

(seeNote A)

DUT

SDA

DUT

P PORTLOADCONFIGURATION

500 W

´ CCP

C =50pF

(seeNote A)

0.3

´ CCI

CCP

tRESET

tREC

TCA6408

LOW-VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER

WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

SCPS151C – FEBRUARY 2007 – REVISED JUNE 2007

PARAMETER MEASUREMENT INFORMATION (continued)

CL includes probe and jig capacitance.

All inputs are supplied by generators having the following characteristics: PRR

≤ 10 MHz, Z

O = 50 Ω, tr/tf ≤ 30 ns.

The outputs are measured one at a time, with one transition per measurement.

I/Os are configured as inputs.

All parameters and waveforms are not applicable to all devices.

Figure 13. Reset Load Circuits and Voltage Waveforms

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TCA6408 Datasheet(PDF) 20 Page - Texas Instruments