PCAL9539A Datasheet (Low-voltage 16-bit I2C-bus and SMBus low power I/O port)

Part: PCAL9539A
Manufacturer: NXP Semiconductors (official site)
Size: 2.70 MB

PCAL9539A Key Features

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I2C-bus to parallel port expander
Operating power supply voltage range of 1.65 V to 5.5 V
Low standby current consumption
1.5 A (typical at 5 V VDD)
1.0 A (typical at 3.3 V VDD)
Schmitt-trigger action allows slow input t

Related NXP Semiconductors Datasheets

Part Number	Description
PCAL9535A	Low-voltage 16-bit I2C-bus I/O port
PCAL9555A	Low-voltage 16-bit I2C-bus GPIO
PCAL6408A	8-bit I2C-bus/SMBus I/O expander
PCAL6416A	Low-voltage translating 16-bit I2C-bus/SMBus I/O expander
PCA2125	SPI Real-time clock/calendar

PCAL9539A 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...