Octal SMBus and I2C registered interface

PCA9556 PCA9556 Octal SMBus and I2C registered interface Product data Supersedes data of 2000 Nov 13 2002 Mar 28 INTEGRATED CIRCUITS

16-bit I2C-bus and SMBus I/O port with interrupt

The PCA9555 is a 24-pin CMOS device that provides 16 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors

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

PCA9554_9554A 1. General description The PCA9554 and PCA9554A are 16-pin CMOS devices that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications

2-bit I2C-bus LED driver with programmable blink rates

PCA9550 1. General description The PCA9550 LED blinker blinks LEDs in I2C-bus and SMBus applications where it is necessary to limit bus traffic

Octal bus switch with individually I2C-bus controlled enables

PCA9549 1. General description The PCA9549 provides eight bits of high speed TTL-compatible bus switching controlled by the I2C-bus

2-channel I2C-bus switch with interrupt logic and reset

PCA9543A/43B 1. General description The PCA9543A/43B is a bidirectional translating switch, controlled by the I2C-bus. The SCL/SDA upstream

2-to-1 I2C-bus master selector with interrupt logic and reset

PCA9541 1. General description The PCA9541 is a 2-to-1 I2C-bus master selector designed for high reliability dual master I2C-bus

Simple 2-wire bus buffer

PCA9525 1. General description The PCA9525 is a monolithic CMOS integrated circuit for bus buffering in applications including I2C-bus, SMBus, DDC, PMBus, and other systems

Fast dual bidirectional bus buffer with hot insertion logic

PCA9522 1. General description The PCA9522 is a monolithic bipolar integrated circuit for bus buffering in applications including I2C-bus

Fast dual bidirectional bus buffer

PCA9521 1. General description The PCA9521 is a monolithic bipolar integrated circuit for bus buffering in applications including I2C-bus, SMBus, PMBus