NXP PCA9554BS,118

8I²C，SMBusPOR2.3V ~ 5.5V-40°C ~ 85°C

Overview

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 and were developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, lower supply current, individual I/O configuration, 400 kHz clock frequency, and smaller packaging. I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, and so on.

Three hardware pins (A0, A1, A2) vary the fixed I2C-bus address and allow up to eight devices to share the same I2C-bus/SMBus. The PCA9554A is identical to the PCA9554 except that the fixed I2C-bus address is different allowing up to sixteen of these devices (eight of each) on the same I2C-bus/SMBus.

Features

Tape & Reel (TR) Package
8 Number of I/O
I²C, SMBus Interface
Yes Interrupt Output
POR Features
10mA, 25mA Current - Output Source/Sink
400 kHz Clock Frequency
2.3V ~ 5.5V Voltage - Supply
Surface Mount Mounting Type