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PCA9536

NXP
Part Number PCA9536
Manufacturer NXP
Description 4-bit I2C and SMBus I/O port
Published Mar 22, 2005
Detailed Description PCA9536 4-bit I2C-bus and SMBus I/O port Rev. 6 — 7 November 2017 Product data sheet 1. General description The PCA953...
Datasheet PDF File PCA9536 PDF File

PCA9536
PCA9536

Overview
PCA9536 4-bit I2C-bus and SMBus I/O port Rev.
6 — 7 November 2017 Product data sheet 1.
General description The PCA9536 is an 8-pin CMOS device that provides 4 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders.
I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.
The PCA9536 consists of a 4-bit Configuration register (input or output selection), 4-bit Input Port register, 4-bit Output Port register and a 4-bit Polarity Inversion register (active HIGH or active LOW operation).
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 Port or Output Port register.
The polarity of the read register can be inverted with the Polarity Inversion register.
All regist...


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