PCA9558 データシートの表示（PDF） - Philips Electronics

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PCA9558

8-bit I2C and SMBus I/O port with 5-bit multiplexed/1-bit latched 6-bit I2C EEPROM and 2 k bit EEPROM

Philips Electronics 

Philips Semiconductors

8-bit I2C and SMBus I/O port with 5-bit multiplexed/1-bit

latched 6-bit I2C EEPROM and 2 k bit EEPROM

Product data

PCA9558

BLOCK DIAGRAM

MUX SELECT

PCA9558

MUX_OUT_LOW

MUX_IN

5

6-BIT EEPROM

A0

SCL

SDA

INPUT

FILTER

I2C

INTERFACE

LOGIC

5

LATCH

NON_MUXED_OUT

1

5-BIT

2 TO 1

MULTIPLEXER

0

MUX_OUTA

MUX_OUTB

MUX_OUTC

MUX_OUTD

MUX_OUTE

VDD

GND

POWER-ON

RESET

I2C

CONTROL

LOGIC

WRITE PROTECT

I/O_OUT_LOW

256 BYTE

EEPROM

GPIO

8

I/O0–7

SW00633

2002 May 24

4

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