ADP5585ACBZ-04-R7

Overview

The ADP5585ACBZ-04-R7 is a 10-channel I/O expander and keypad controller from Analog Devices, packaged in a 16-ball WLCSP. It operates on a supply voltage of 1.65 V to 3.6 V with an operating current of 80 µA at 3.3 V. The device supports I2C communication up to 1 MHz and includes a 16-element FIFO for event recording. It features configurable pull-up (100 kΩ/300 kΩ) and pull-down (300 kΩ) resistors, push-pull or open-drain outputs, and supports keypad matrices up to 5x5.

Feature Summary

• Integrated 16-element FIFO for tracking key press/release, GPI changes, and logic events
• Configurable I/O structure with selectable internal pull-up and pull-down resistors
• Built-in keypad matrix decoder supporting up to 5x5 configurations
• Programmable logic blocks and PWM generators for system integration

Applications

• Smart phones and mobile devices
• Remote controls
• Cameras
• Healthcare equipment
• Industrial instrumentation

Procurement Notes

Verify the specific ordering suffix -04-R7 to confirm the presence of pull-down resistors on all GPIO pins at startup. Ensure the selected package variant matches the PCB footprint requirements. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement orders.

Selection Notes

Select this model when internal pull-down resistors are required on all GPIO pins upon power-up. Compare against the -00 variant if default pull-ups are preferred. Consider the -01 variant if an additional row pin is needed for larger keypad matrices. Verify thermal dissipation capabilities within the WLCSP package constraints.

Part Context

This component belongs to the ADP5585 series of keypad decoders and I/O expanders. It shares core functionality with variants like the ADP5585ACBZ-00-R7 but differs in initial resistor configuration. The series is designed to offload processor tasks related to input scanning and logic control in embedded systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.