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PCA9539

NXP
Part Number PCA9539
Manufacturer NXP
Description 16-bit I2C and SMBus low power I/O port
Published Nov 20, 2006
Detailed Description PCA9539; PCA9539R 16-bit I2C-bus and SMBus low power I/O port with interrupt and reset Rev. 9 — 8 November 2017 Produ...
Datasheet PDF File PCA9539 PDF File

PCA9539
PCA9539

Overview
PCA9539; PCA9539R 16-bit I2C-bus and SMBus low power I/O port with interrupt and reset Rev.
9 — 8 November 2017 Product data sheet 1.
General description The PCA9539; PCA9539R is a 24-pin CMOS device that provides 16 bits of General Purpose parallel Input/Output (GPIO) expansion with interrupt and reset 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 PCA9539; PCA9539R consists of two 8-bit configuration (input or output selection), input, output and polarity inversion (active HIGH or ...


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