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
BLOCK DAGRAM
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