PCA9534D,112 查看數據表（PDF） - NXP Semiconductors.

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PCA9534D,112

8-bit I2C-bus and SMBus low power I/O port with interrupt

NXP Semiconductors. 

NXP Semiconductors

PCA9534

8-bit I2C-bus and SMBus low power I/O port with interrupt

SCL 1 2 3 4 5 6 7 8 9

slave address

data from port

data from port

SDA S 0 1 0 0 A2 A1 A0 1 A

DATA 1

A

DATA 4

NA P

START condition

read from

port

data into

port

INT

tv(INT_N)

R/W

acknowledge

from slave

acknowledge

from master

th(D)

DATA 2 DATA 3

trst(INT_N)

tsu(D)

no acknowledge STOP

from master condition

DATA 4

002aac475

This figure assumes the command byte has previously been programmed with 00h.

Transfer of data can be stopped at any moment by a STOP condition.

Fig 11. Read Input Port register

PCA9534

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 4 — 7 November 2017

© NXP Semiconductors N.V. 2017. All rights reserved.

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