ADP5587 Datasheet (Analog Devices) - Mobile I/O Expander And QWERTY Keypad Controller

ADP5587, Mobile I/O Expander And QWERTY Keypad Controller

The ADP5587 is an I/O port expander and keypad matrix designed for QWERTY type phones that require a large keypad matrix and expanded I/O lines.

I/O expander ICs are used in mobile platforms as a solution to the limited number of GPIOs available in the main processor.

In its small 2 mm × 2 mm packag

ADP5587 Features

* 18-GPIO port expander or 10 × 8 keypad matrix GPIOs configurable as GPIs, GPOs, and keypad rows or columns I2C interface with auto-increment 1.65 V to 3.6 V operation Keypad lock capability Open-drain interrupt output Key press and key release interrupts GPI interrupt with level programmability Prog