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PCAL9539A

NXP Semiconductors
Part Number PCAL9539A
Manufacturer NXP Semiconductors
Description Low-voltage 16-bit I2C-bus and SMBus low power I/O port
Published Jan 22, 2013
Detailed Description PCAL9539A Low-voltage 16-bit I2C-bus and SMBus low power I/O port with interrupt and reset Rev. 1 — 3 October 2012 Produ...
Datasheet PDF File PCAL9539A PDF File

PCAL9539A
PCAL9539A

Overview
PCAL9539A Low-voltage 16-bit I2C-bus and SMBus low power I/O port with interrupt and reset Rev.
1 — 3 October 2012 Product data sheet 1.
General description The PCAL9539A is a low-voltage 16-bit General Purpose Input/Output (GPIO) expander with interrupt and reset for I2C-bus/SMBus applications.
NXP I/O expanders provide a simple solution when additional I/Os are needed while keeping interconnections to a minimum, for example, in ACPI power switches, sensors, push buttons, LEDs, fan control, etc.
In addition to providing a flexible set of GPIOs, the wide VDD range of 1.
65 V to 5.
5 V allows the PCAL9539A to interface with next-generation microprocessors and microcontrollers where supply leve...


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