NXP PCAL6416AHF,128 Datasheet & Stock

The PCAL6416AHF,128 is a 16-bit I/O Expander provides remote I/O expansion for most microcontroller families via the I²C-bus interface. The NXP I/O expander provides a simple solution when additional I/Os are needed while keeping interconnections to a minimum. In addition to providing a flexible set of GPIOs, it simplifies interconnection of a processor running at one voltage level to I/O devices operating at a different (usually higher) voltage level. The PCAL6416A has built-in level shifting feature that makes this device extremely flexible in mixed signal environments where communication between incompatible I/O voltages is required. Its wide VDD range of 1.65 to 5.5V on the dual power rail allows seamless communications with next-generation low voltage microprocessors and microcontrollers on the interface side (SDA/SCL) and peripherals at a higher voltage on the port side.




Low standby current consumption

Schmitt-trigger action allows slow input transition and better switching noise immunity

Open-drain active LOW interrupt output (INT)\

Internal power-ON reset

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 100 mA per JESD 78, class II

Bank selectable push-pull or open-drain output stages

Read-only register identifies the source of an interrupt





Input port register values changes are kept until the input port register is read

Floating input or pull-up/pull-down resistor enable

Mask prevents the generation of the interrupt when input changes state

100kΩ Pull-up/down resistor





Applications


Communications & Networking,

Sensing & Instrumentation,

Power Management





Warnings
Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.