PCAL9714HN/Q900MP

PCAL9714HN/Q900MP is an ultra-low voltage translating 14-bit SPI I/O expander with Agile I/O features, interrupt output, and reset. It provides a simple solution when additional I/O is needed while keeping interconnections to a minimum, for example, in battery-powered mobile applications for interfacing with sensors, push buttons, keypads, etc. In addition to providing a flexible set of GPIOs, it simplifies the interconnection of a processor running at one voltage level down to 1.1V to I/O devices operating at a different voltage level 1.65V to 5.5V. It has built-in level shifting features that make this device extremely flexible in mixed power supply systems where communication between incompatible I/O voltages is required, allowing seamless communications with next-generation low-voltage microprocessors and microcontrollers on the interface side and peripherals at a higher voltage on the port side.

• SPI bus to parallel port expander, 5MHz SPI bus
• Operating power supply voltage range of 1.1V to 5.5V on the SPI bus side
• Low standby current consumption 2.0μA typical at 3.3VVD
• 5.5V tolerant I/O ports and SPI bus pins, active LOW reset input (active low RESET)
• Open-drain active LOW interrupt output (INT), internal power-on rese
• Power-up with all channels configured as inputs, no glitch on power-up
• Latched outputs with 25mA drive maximum capability for directly driving LEDs
• Latch-up performance exceeds 100mA per JESD 78, Class II
• 2000V Human-Body Model (A114-A), 1000V Charged-Device Model (C101) ESD protection exceeds JESD 22
• HVQFN24 package, ambient temperature range from -40°C to +85°C