ADP5585ACBZ-00-R7

Overview

The ADP5585ACBZ-00-R7 is a keypad decoder and I/O expander manufactured by Analog Devices Inc. It features ten configurable input/output pins, supporting keypad matrix decoding up to 5 × 5 or general-purpose I/O expansion. The device includes a 16-element FIFO for event recording, programmable logic blocks, PWM generation, and reset generators. It communicates via an I2C interface with Fast Mode Plus support up to 1 MHz. Operating voltage ranges from 1.65 V to 3.6 V, with standby current as low as 1 µA at 1.65 V. The component is housed in a 16-ball WLCSP package measuring 1.59 mm × 1.59 mm.

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 (100 kΩ/300 kΩ) and pull-down (300 kΩ) resistors
• Built-in keypad scanner supporting matrices up to 5 rows by 5 columns
• Programmable logic block and dual reset generators for system control

Applications

• Smart phones and portable communication devices
• Remote controls and consumer electronics
• Digital cameras
• Healthcare equipment
• Industrial instrumentation panels

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pin configuration and electrical characteristics. Ensure compatibility with the target PCB footprint, specifically the 16-ball WLCSP package dimensions. Confirm that the design supports the required I2C bus capacitance limits and voltage levels for reliable operation within the specified temperature range.

Selection Notes

Select this model when a 5 × 5 keypad matrix or ten general-purpose I/Os are required without the additional row provided by the -01 variant. Consider the WLCSP package if board space is constrained compared to the LFCSP option. Verify that the default GPIO pull-up configuration meets the circuit requirements, as other variants offer different resistor states or alternate I2C addresses.

Part Context

This component belongs to the ADP5585 series of keypad decoders and I/O expanders. It is functionally similar to the ADP5586 and ADP5589 but offers a distinct feature set optimized for cost-sensitive portable applications. The -00 suffix denotes the standard configuration with GPIO pull-ups enabled and support for a maximum 5-row by 5-column matrix.

Replacement Considerations

Direct substitutes include the ADP5585ACPZ-00-R7, which shares identical functionality but uses a 16-lead LFCSP package instead of WLCSP. Other models in the ADP5585 family may require verification of pinout compatibility and specific feature differences such as added rows or altered I2C addresses.