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ADP5587 - Mobile I/O Expander And QWERTY Keypad Controller

ADP5587 Description

Data Sheet .
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.

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

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Mobile Expander And QWERTY Keypad Controller Analog Devices
Analog Devices ADP5587-like datasheet