ADP5585ACPZ-00-R7 - 10-I/O Keypad Controller | Analog Devices
MPN: ADP5585ACPZ-00-R7 ✓ ActiveADP5585ACPZ-00-R7 Overview
An I/O expander is an interface IC that increases the number of general-purpose inputs and outputs available to a host processor. The ADP5585 family combines this port-expansion function with a keypad matrix decoder and programmable logic, allowing a processor to scan keypad inputs and receive buffered events while using fewer host pins. This makes the device suitable for product interfaces, handheld equipment, industrial instrumentation, and other control systems with compact human-machine interfaces.
The verified product information identifies 10 configurable I/Os, a 16-element FIFO for event recording, a built-in keypad decoder, programmable logic, a reset generator, and a PWM generator. The ADP5585ACPZ-00-R7 is specifically identified as the standard address configuration. The manufacturer datasheet also states that the 7-bit device address is 0x34 for all models except ADP5585ACPZ-03-R7, which uses 0x30.
The 16-LFCSP 3x3 mm package supports compact PCB layouts in space-constrained portable products and instrument panels. Because the supplied web results do not publish the complete pin names or detailed electrical limits in machine-readable form, the package pinout and several electrical parameters are marked as requiring verification from the manufacturer datasheet before schematic capture or layout release.
Typical applications include keypad entry, camera controls, remote controls, portable devices, healthcare equipment, industrial instrumentation, and other embedded human-interface systems. The internal FIFO can record input events while the host processes other tasks, while programmable logic can provide local decision-making or control behavior. The PWM generator is useful for LED indicators, simple dimming, or other low-frequency auxiliary functions when its electrical limits are appropriate for the load.
Designers should confirm the I/O voltage, absolute maximum ratings, address configuration, capacitor requirements, and exposed-pad connection directly from the manufacturer datasheet. The I/O pins should also be checked for pull-up, pull-down, keypad, logic-level, or push-pull requirements before they are assigned to a board layout. This page combines verified manufacturer and distributor information with practical application guidance and explicitly identifies values that require datasheet confirmation.
Drop-in alternatives for ADP5585ACPZ-00-R7 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ADP5585ACPZ-00-R7 (same form factor and footprint) — differing in Package, Product Type, Event FIFO, Programmable Logic.
ADP5585ACPZ-03-R7
✅ Drop-InContact for price
View Datasheet →ADP5585ACPZ-01-R7
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →ADP5585ACPZ-02-R7
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ADP5585ACPZ-00-R7 Specifications
| Product Type | 10-I/O port expander with keypad decoder |
| Number of I/O Pins | 10 configurable I/Os |
| Keypad Decoder | Built-in keypad matrix decoder |
| Event FIFO | 16 element FIFO |
| Programmable Logic | Built-in programmable logic |
| Reset Generator | Built-in reset generator |
| PWM Generator | Built-in PWM generator |
| Device Address | 0x34 7-bit address |
| Interface Type | I2C interface |
| Package | 16-LFCSP (3x3 mm) |
| Mounting Type | Surface mount |
ADP5585ACPZ-00-R7 16-lfcsp (3x3 mm) Pin Configuration Guide
Pin configuration for ADP5585ACPZ-00-R7 (16-lfcsp (3x3 mm) package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for ADP5585ACPZ-00-R7.
Refer to the datasheet for full pin configuration.
Typical Applications
ADP5585ACPZ-00-R7 is suitable for 6 applications: Keypad Entry Interfaces, Portable Device Controls, Camera and Remote Controls, Healthcare Equipment, Industrial Instrumentation, LED Status and Dimming Controls.
Keypad Entry Interfaces
The ADP5585ACPZ-00-R7 fits keypad entry designs because it combines 10 configurable I/Os with a built-in keypad matrix decoder and a 16-element event FIFO. The host processor can communicate through I2C instead of dedicating many GPIO pins to switch detection. The FIFO is valuable when key events must be retained during other firmware activity, although the supported matrix size and debounce behavior should be confirmed in the ADP5585 datasheet. The standard device address of 0x34 also makes bus planning straightforward when the -03 option is not required.
Recommended
Portable Device Controls
The ADP5585ACPZ-00-R7 is appropriate for portable products that need buttons, indicator controls, or auxiliary I/O without expanding the main processor package. Its 16-LFCSP 3x3 mm footprint preserves PCB area, while the integrated keypad decoder and programmable logic can offload simple input tasks. The I2C address of 0x34 supports conventional host-bus communication. Designers should confirm the device's verified voltage limits and pin drive capabilities before attaching externally accessible controls.
Recommended
Camera and Remote Controls
The ADP5585ACPZ-00-R7 can serve as a compact auxiliary controller in cameras, remote controls, and other handheld equipment with several tactile inputs. The built-in keypad matrix decoder reduces the number of host GPIO connections required, while the 16-element FIFO helps preserve events during intermittent firmware processing. Programmable logic provides a mechanism for local behavior, and the PWM generator can support compatible indicator functions. Exact pin allocation and electrical limits must be checked against the manufacturer datasheet.
Recommended
Healthcare Equipment
The ADP5585ACPZ-00-R7 can expand I/O availability in healthcare instruments where front-panel buttons, status controls, or sensor-related digital interfaces are needed around a host processor. The integrated keypad decoder and event FIFO allow the controller to capture user inputs while the main processor manages measurement or communication tasks. Its small 16-LFCSP 3x3 mm package supports compact board layouts. Medical-system designers must independently verify electrical, reliability, regulatory, and qualification requirements; the supplied data does not establish AEC-Q100 or medical certification.
Recommended
Industrial Instrumentation
The ADP5585ACPZ-00-R7 is useful in industrial instruments that require a distributed set of digital controls but have limited host GPIO availability. Its 10 configurable I/Os, keypad decoder, programmable logic, reset generator, and PWM generator consolidate several peripheral functions into one 3x3 mm device. The FIFO can record input events while the host performs communication or control tasks. Because the verified results do not provide the full operating-voltage or temperature ratings, industrial deployment requires full datasheet and environmental verification before release.
Recommended
LED Status and Dimming Controls
The ADP5585ACPZ-00-R7 can host PWM-generation functions in control boards that use compatible LEDs or low-frequency indicator loads. Keeping PWM generation in the interface IC can reduce host GPIO use and consolidate keypad or logic functions around the same I2C-connected device. The application must remain within verified PWM frequency, duty-cycle, and I/O current limits, none of which were included in the supplied search snippets. The manufacturer datasheet should be consulted before assigning an indicator directly to an I/O.
Recommended
Recommended Products Summary
Engineering reference data for ADP5585ACPZ-00-R7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADP5585ACPZ-03-R7 | ADP5585ACPZ-01-R7 | ADP5585ACPZ-02-R7 |
|---|---|---|---|---|
| Package | 16-LFCSP (3x3 mm) | 16-LFCSP (3x3 mm) | 16-LFCSP (3x3 mm) | 16-LFCSP (3x3 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
Key Differentiators
- Standard 0x34 bus address simplifies compatibility with designs built for the -00 option (vs ADP5585ACPZ-03-R7)
- Combines keypad decoding and event buffering in the same interface IC (vs ADP5585ACPZ-03-R7)
- Compact package consolidates multiple auxiliary functions (vs ADP5585ACPZ-01-R7)
Design Notes
Verify the I2C address before treating any ADP5585 option as a drop-in replacement. The ADP5585ACPZ-00-R7 uses 0x34, while the verified ADP5585ACPZ-03-R7 alternative uses 0x30. A package-compatible substitution can still fail if firmware retains the old address or if multiple devices create an address conflict.
Place the device and its required support components close to the connector or keypad interface they serve. Keep I2C routing short and away from switching-node and high-current paths. The exposed-pad connection, via arrangement, and recommended input/output capacitors must follow the package drawing and layout guidance in the official manufacturer datasheet rather than being inferred from the 3x3 mm outline.
Confirm the supply and I/O voltage ranges from the complete ADP5585 datasheet before connecting the 10 I/Os to external buttons, LEDs, or peripheral logic. The supplied verified results do not provide those electrical limits. Also review the reset-generator connection and power-up behavior so the host interface starts in a defined state.
Compliance Information
The supplied verified snippets do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields must be confirmed from the current manufacturer product documentation and supply-chain declarations.
