PCA9558 Ver la hoja de datos (PDF) - NXP Semiconductors.

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PCA9558

8-bit I2C-bus and SMBus I/O port with 5-bit multiplexed/1-bit latched 6-bit I2C-bus EEPROM DIP switch and 2-kbit EEPROM

NXP Semiconductors. 

NXP Semiconductors

5. Block diagram

MUX_SELECT

PCA9558

MUX_OUT_LOW

6-bit EEPROM

5

MUX_INA to

MUX_INE

A0

SCL

SDA

VDD

VSS

WP

INPUT

FILTER

I2C-BUS

INTERFACE

LOGIC

5

POWER-ON

RESET

I2C-BUS

CONTROL

LOGIC

256-BYTE

EEPROM

IO_OUT_LOW

Fig 1. Block diagram of PCA9558

PCA9558

8-bit I2C-bus/SMBus I/O port

LATCH

NMO

NON_MUXED_OUT

1

5-BIT

2 TO 1

MUX

0

MUX_OUTA

MUX_OUTB

MUX_OUTC

MUX_OUTD

MUX_OUTE

8

GPIO

IO0 to IO7

002aad366

PCA9558_4

Product data sheet

Rev. 04 — 14 April 2009

© NXP B.V. 2009. All rights reserved.

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