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ADP5588

Part Number	ADP5588
Manufacturer	Analog Devices
Description	Keypad I/O Expander
Published	Jun 28, 2009
Detailed Description	Data Sheet FEATURES 18-GPIO port expander or 10 × 8 keypad matrix GPIOs configurable to GPIs, GPOs, and keypad rows or c...
Datasheet	ADP5588 PDF File

Overview

Data Sheet FEATURES 18-GPIO port expander or 10 × 8 keypad matrix GPIOs configurable to GPIs, GPOs, and keypad rows or columns Dual light sensor inputs (C8 and C9) I2C interface I2C register read autoincrement 1.
8 V to 3.
0 V operation Keypad lock capability Open-drain interrupt output Key press and key release interrupts GPI interrupt with level programmability Programmable pull-ups Key event counter with overflow interrupt 50 μs debounce on the reset line and GPIs 1 μA typical idle current, 55 μA typical polling current drain for one key press Small 4 mm × 4 mm LFCSP package APPLICATIONS Keypad and I/O expander designed for QWERTY type phones that require a large keypad matrix GENERAL DESCR...

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