NXP (PCAL9554BBSHP) I/O Expander, 8bit, 400 kHz

Product Overview The PCAL9554BBSHP is an 8-bit general purpose Input/output (GPIO) Expander with interrupt and weak pull-up for I²C-bus/SMBus applications. 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, the wide VDD range of 1.65 to 5.5V allows the expander to interface with next-generation microprocessors and microcontrollers where supply levels are dropping down to conserve power. It contains the PCA9554A register set of four 8-bit configuration, input, output and polarity inversion registers and additionally, the expander has Agile I/O, which are additional features specifically designed to enhance the I/O. The additional features includes programmable output drive strength, latchable inputs, programmable pull-up/pull-down resistors, maskable interrupt, interrupt status register, programmable open-drain or push-pull outputs. Low standby current consumption Open-drain active LOW interrupt output (INT)\ 400kHz Fast-mode I²C-bus 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 Input port register values changes are kept until the input port register is read Floating input or pull-up/pull-down resistor enable 100kR Pull-up/down resistor Applications Communications & Networking, Industrial Product Information Chip Configuration: 8bit Bus Frequency: 400kHz IC Interface Type: I2C Supply Voltage Min: 1.65V Supply Voltage Max: 5.5V Interface Case Style: HVQFN No. of Pins: 16Pins No. of I/O's: 8I/O's Product Range: - Automotive Qualification Standard: - MSL: MSL 1 - Unlimited