The Pmod IOXP is an I/O expansion module based on the Analog Devices ADP5589 device. It provides up to 19 additional GPIO pins from a serial I²C bus connection, as well as a keypad matrix decoder.
• 19 x configurable GPIO pins • Keypad decoder for up to 11 x 8 keypad with key press/release interrupt • 16-element FIFO for event recording • PWM generator • Open-drain interrupt output • 2 x Programmable logic blocks each with up to three inputs and one output • Switch debounce filters on input pins • Host communication: serial I²C bus up to 1MHz clock • 16 x TVS-protected GPIO/Keypad signals on 2 x 12-pin connectors • 3 x TVS-protected GPIO/Keypad signals on 6-pin header • Dimensions: 33 x 58.4mm