NXP (PCAL6416AHF,128) I/O Expander, 16bit, 400 kHz

Product Overview 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 100kR Pull-up/down resistor Applications Communications & Networking, Sensing & Instrumentation, Power Management Product Information Chip Configuration: 16bit Bus Frequency: 400kHz IC Interface Type: I2C Supply Voltage Min: 1.65V Supply Voltage Max: 5.5V Interface Case Style: HWQFN No. of Pins: 24Pins No. of I/O's: 16I/O's Product Range: - Automotive Qualification Standard: - MSL: MSL 1 - Unlimited