NXP Semiconductors PCAL9714 Ultra Low-Voltage 14-bit Expanders

NXP Semiconductors PCAL9714 Ultra Low-Voltage 14-bit Expanders offer remote I/O expansion for microcontroller families via the Serial Peripheral Interface (SPI). These expanders include interface that allows direct connection with the microcontroller operating down to 1.1V. The PCAL9714 14-bit expanders feature integrated Agile I/O, enabling flexible and configurable designs with push-pull or open-drain outputs. These integrated Agile I/O feature interrupt status registers, four different output drive strengths, enable and resistor selectors for pull-up and pull-down resistors, and interrupt mask options. Typical applications include automotive, communication infrastructure, industrial, smart city, and smart home.

Features

14-bit GPIO with SPI
Highly configurable Agile I/O:
- Push-pull or open-drain outputs
- Interrupt status registers
- Four different output drive strengths
- Enable and resistor selector for pull-up and pull-down resistors
- Interrupt mask options
Robust:
- Schmitt trigger action allows slow input transition and better switching noise immunity
- 5.5V tolerant I/O ports and SPI bus pins
- Noise filter on SPI inputs
- Latch-up performance exceeds 100mA per JESD 78, class II

ESD protection exceeds JESD 22:
- 2000V Human-Body Model (HBM) (A114-A)
- 1000V Charged Device Model (CDM) (C101)
HVQFN24 package

Specifications

5MHz SPI bus
Allows bidirectional voltage-level translation and GPIO expansion between 1.1V to 5.5V on SPI and 1.8V, 2.5V, 3.3V, and 5.5V on port P
1.1V to 5.5V operating power supply voltage range on the SPI bus side

Latched outputs with 25mA drive maximum capability for directly driving LEDs
2μA typical at 3.3V VDD low standby current consumption

Applications

Industrial
Communication
Computing and consumer

NXP Semiconductors PCAL9714 Ultra Low-Voltage 14-bit Expanders

Features

Specifications

Applications

Block Dagram

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