ADP5588XCPZ-R7

Overview

The ADP5588XCPZ-R7 is an I/O expander and column keypad scanner manufactured by Analog Devices Inc. It features a serial interface supporting I2C communication with a maximum clock frequency of 400 kHz. The device provides 18 general-purpose input/output pins and includes interrupt output capabilities. It operates within a supply voltage range of 1.7 V to 3 V and functions across a temperature range of -40°C to +85°C. The component is housed in a 24-lead LFCSP package and utilizes open-drain outputs.

Feature Summary

• Integrated column keypad scanning functionality for efficient matrix key detection
• Supports multiple simultaneous key press events with internal FIFO buffering
• Configurable GPIO ports allowing unused row/column pins to function as general inputs or outputs

Applications

• Embedded systems requiring keyboard input expansion
• Portable devices needing low-power I/O management
• Industrial control interfaces utilizing matrix keypads

Procurement Notes

Verify the specific suffix 'X' against official Analog Devices documentation, as standard listings typically reference the ADP5588ACPZ-R7 variant. Confirm RoHS compliance status and moisture sensitivity level prior to procurement. Ensure the supplier provides valid traceability documents matching the manufacturer's part identification standards.

Selection Notes

Select this component when designing systems requiring expanded I/O capabilities alongside dedicated keypad scanning functions. Consider the 1.7 V to 3 V operating range for compatibility with low-voltage logic families. Evaluate the LFCSP-24 package constraints for PCB layout requirements and thermal dissipation needs relative to the application environment.

Part Context

This component belongs to the ADP5588 series of I/O expanders designed for embedded applications. It complements other Analog Devices interface solutions by providing hardware-level support for input devices without burdening the main processor. The series is commonly integrated into system-on-chip architectures to manage peripheral interactions efficiently.

Replacement Considerations

The ADP5589ACPZ-00-R7 offers similar I/O expansion but supports 19 I/Os and operates at up to 1 MHz. Verify pinout compatibility and register mapping differences before substitution. No direct equivalent substitutes are confirmed in public documentation.