PCA9535 PDF Datasheet


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Description

This is 16-bit I2C and SMBus/ low power I/O port with interrupt. INTEGRATED CIRCUITS PCA9535 16-bit I2C and SMBus, low power I, O port with interrupt Product data 2003 Jun 27 Philips Semiconductors Philips Semiconductors Product data 16-bit I2C and SMBus, low power I, O port with interrupt PCA9535 I2C, SMBus applications and was developed to enhance the Philips family of I2C I, O expanders. The improvements include higher drive capability, 5 V I, O tolerance, lower supply current, individual I, O configuration, and smaller packaging. I, O expanders provide a simple solution when additional I, O is needed for ACPI power switches, sensors, pushbuttons, LEDs, fans, etc. The PCA9535 consist of two 8-bit Configuration (Input or Output selection); Input, Output and Polarity inversion (Active HIGH or Active LOW operation) registers. The system master can enable the I, Os as either inputs or outputs by writing to the I, O configuration bits. The data for each Input or Output is kept in the corresponding Input or Output register. The polarity of the r.