TCA6416RTWT datasheet(4/35 Pages) TI

No de pièce	TCA6416RTWT

Description	LOW-VOLTAGE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

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Voltage Translation

TCA6416

SCPS153A – DECEMBER 2007 – REVISED FEBRUARY 2009 ........................................................................................................................................ www.ti.com

Table 1 shows how to set up VCC levels for the necessary voltage translation between the I

2C bus and the

TCA6416.

Table 1. Voltage Translation

VCCI (SDA AND SCL OF I

2C

VCCP (P PORT)

MASTER)

(V)

1.8

2.5

1.8

3.3

1.8

5

2.5

1.8

2.5

3.3

2.5

5

3.3

1.8

3.3

2.5

3.3

5

1.8

5

2.5

5

3.3

5

4

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