ADP5589ACPZ-01-R7

Overview

The ADP5589ACPZ-01-R7 is a 19-port I/O expander with integrated keypad matrix decoder, programmable logic, reset generator, and PWM generator. It operates on a supply voltage of 1.65 V to 3.6 V. The device features an I2C interface supporting fast-mode plus (Fm+) up to 1 MHz. It includes a 16-element FIFO for event recording, configurable pull-up/pull-down resistors, and dual programmable logic blocks. The component is housed in a 24-lead LFCSP package measuring 3.5 mm × 3.5 mm.

Feature Summary

• Integrated 16-element FIFO for recording key press/release, GPI, and logic events
• Supports keypad matrix decoding up to 11 columns by 8 rows
• Dual programmable logic blocks for custom logic functions
• Reset pass-through functionality via R4 pin

Applications

• Portable devices requiring keypad entry and I/O expansion
• Remote controls and cameras
• Healthcare, industrial, and instrumentation equipment

Procurement Notes

Verify the specific ordering suffix -01 indicates reset pass-through functionality. Confirm the LFCSP-24 package dimensions match design constraints. Ensure I2C bus capacitance limits are respected for reliable communication at high speeds.

Selection Notes

Select this variant when reset pass-through from the RST pin to the RESET1 output is required. Compare standby current specifications against power budget requirements. Verify that the 19 available I/O pins meet the system's expansion needs without additional external components.

Part Context

This part belongs to the ADP5589 series of I/O expanders. The -ACPZ suffix denotes the LFCSP-24 package option. Other variants include WLCSP packages or different feature sets such as default GPIO pull-ups or special function pin pull-downs.

Replacement Considerations

Public confirmed substitute part numbers: None identified.