ADP5585ACBZ-01-R7

Overview

The ADP5585ACBZ-01-R7 is a keypad decoder and I/O expander from Analog Devices, packaged in a 16-ball WLCSP measuring 1.59 mm × 1.59 mm. It operates on a supply voltage range of 1.65 V to 3.6 V with an operating temperature range of -40°C to +85°C. The device features 10 configurable I/O pins, supporting up to a 6-row by 5-column matrix configuration. It includes a 16-element FIFO for event recording, an I2C interface supporting Fast Mode Plus up to 1 MHz, and internal pull-up/pull-down resistors.

Feature Summary

• Supports 6-row by 5-column keypad matrix decoding via the RST/R5 pin acting as an additional row
• Includes a 16-element FIFO to record key press/release, GPI changes, and logic events
• Features programmable logic blocks, PWM generators, and reset generators
• Provides selectable internal pull-up (100 kΩ or 300 kΩ) and pull-down (300 kΩ) resistors

Applications

• Smart phones and remote controls
• Cameras and portable devices
• Healthcare equipment
• Industrial and instrumentation systems

Procurement Notes

Verify the specific ordering suffix ACBZ-01-R7 to confirm the inclusion of the extra row pin functionality and the WLCSP package type. Ensure compatibility with the target system's I2C bus speed and voltage levels before integration. Check for any regional distribution restrictions that may affect availability.

Selection Notes

Select this model when a 6x5 keypad matrix is required, as other variants like the ADP5585ACBZ-00-R7 are limited to 5x5 matrices. Consider the WLCSP package size constraints against available PCB real estate. Verify that the 1.65 V to 3.6 V supply range aligns with the system power architecture.

Part Context

This component belongs to the ADP5585 series of I/O expanders. It shares functional similarities with models like the ADP5585ACBZ-00-R7 but differs in its expanded keypad matrix capability due to the dedicated RST/R5 pin configuration. It is designed to offload processor tasks related to input scanning.

Replacement Considerations

The ADP5585ACPZ-01-R7 serves as a direct functional substitute with an LFCSP package instead of WLCSP. Other ADP5585 variants lack the 6th row capability. Cross-check pinout compatibility and register maps when substituting.