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

Número de pieza

componentes Descripción

Lista de partido

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

6. Pinning information

6.1 Pinning

PCA9558

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

SCL 1

SDA 2

IO_OUT_LOW 3

A0 4

MUX_INA 5

MUX_INB 6

MUX_INC 7

MUX_IND 8

MUX_INE 9

VSS 10

IO0 11

IO1 12

IO2 13

IO3 14

PCA9558PW

28 VDD

27 WP

26 MUX_OUT_LOW

25 NON_MUXED_OUT

24 MUX_OUTA

23 MUX_OUTB

22 MUX_OUTC

21 MUX_OUTD

20 MUX_OUTE

19 MUX_SELECT

18 IO7

17 IO6

16 IO5

15 IO4

002aad365

Fig 2. Pin configuration for TSSOP28

6.2 Pin description

Table 2. Pin description

Symbol

Pin

SCL

1

SDA

2

IO_OUT_LOW

3

A0

4

MUX_INA

5

MUX_INB

6

MUX_INC

7

MUX_IND

8

MUX_INE

9

VSS

10

IO0

11

IO1

12

IO2

13

IO3

14

IO4

15

IO5

16

IO6

17

IO7

18

Description

serial I2C-bus clock

serial bidirectional I2C-bus data

active LOW control forces all GPIO to logic 0 outputs

A0 address

external input A to multiplexer

external input B to multiplexer

external input C to multiplexer

external input D to multiplexer

external input E to multiplexer

ground

general purpose input/output 0 (open-drain output)

general purpose input/output 1 (open-drain output)

general purpose input/output 2 (open-drain output)

general purpose input/output 3 (open-drain output)

general purpose input/output 4 (open-drain output)

general purpose input/output 5 (open-drain output)

general purpose input/output 6 (open-drain output)

general purpose input/output 7 (open-drain output)

PCA9558_4

Product data sheet

Rev. 04 — 14 April 2009

© NXP B.V. 2009. All rights reserved.

4 of 27

Share Link: