ADP5589ACPZ-00-R7 - 19-Channel Keypad Decoder & I/O Expander | Analog Devices
MPN： ADP5589ACPZ-00-R7 ✓ 啟用中ADP5589ACPZ-00-R7 概覽
A GPIO port expander increases the number of general-purpose input/output lines available to a host processor. The ADP5589 combines conventional I/O expansion with dedicated keypad-scanning resources, making it useful in portable devices, remote controls, cameras, healthcare equipment, industrial instrumentation, and other embedded systems. Its integrated programmable logic blocks can support event handling and programmable digital functions without requiring additional discrete logic.
Key features include 19 configurable I/Os, a keypad matrix decoder for matrices up to 11 by 8, key press and release interrupts, selectable GPIO interrupt levels, 100 kΩ or 300 kΩ pull-up resistors, 300 kΩ pull-down resistors, push-pull or open-drain outputs, and a 16-element FIFO for event recording. The device also provides dual programmable logic blocks and PWM generation capabilities.
The ADP5589 is intended for systems where a keypad matrix, auxiliary controls, indicator outputs, and event-driven logic must be connected to a processor with limited I/O pins. Its FIFO can record keypad events while the host processor is occupied with another task, reducing the risk of losing transient events. The integrated keypad decoder simplifies matrix scanning and event reporting while retaining programmable GPIO behavior.
A typical implementation places the ADP5589 between a host serial interface and a matrix keypad or bank of auxiliary controls. Firmware configures the relevant pins as keypad rows, keypad columns, interrupt inputs, push-pull outputs, or open-drain outputs. The device reports key events through its interrupt mechanism, while the host reads event information over the serial interface. The exact electrical ratings and pin functions should be confirmed against the Analog Devices manufacturer datasheet before layout or firmware release.
When designing a board around the ADP5589ACPZ-00-R7, preserve the manufacturer's recommended decoupling and signal-routing guidance, account for the exposed package pad and its thermal requirements, and define the host interface and interrupt polarity early. This page combines the verified manufacturer and distributor descriptions with application guidance, comparison data, and practical design notes to help engineers evaluate the device before implementation.
直接替換替代品，適用於 ADP5589ACPZ-00-R7 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ADP5589ACPZ-00-R7 （相同外形與佔位） — 差異在於 PWM Generator, Programmable Logic Blocks.
ADP5589ACPZ-01-R7
✅ 直接替換聯絡詢價
查看資料表 →ADP5589ACPZ-02-R7
✅ 直接替換聯絡詢價
查看資料表 →ADP5589ACPZ-00-R7 規格
| Product Type | 19-channel GPIO port expander with keypad matrix decoder |
| Configurable I/O Count | 19 channels |
| Keypad Matrix Capacity | Up to 11 × 8 matrix |
| Key Event Support | Key press and release interrupts |
| Keypad Functions | Keypad lock and unlock |
| GPIO Interrupt Level | Selectable |
| Pull-Up Resistor Options | 100 kΩ or 300 kΩ |
| Pull-Down Resistors | 300 kΩ |
| 輸出配置 | Push-pull or open-drain |
| Programmable Logic Blocks | Dual |
| Event FIFO | 16-element FIFO |
| PWM Generator | Internal PWM generation and external PWM with internal PWM |
| Reset Function | Internal reset generator |
| 封裝 | 24-LFCSP-WQ, 3.5 mm × 3.5 mm |
| 安裝類型 | Surface mount |
| Interface Category | Interface IC / I/O expander |
ADP5589ACPZ-00-R7 24-lfcsp-wq, 3.5 mm × 3.5 mm 腳位配置指南
ADP5589ACPZ-00-R7（24-lfcsp-wq, 3.5 mm × 3.5 mm 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： ADP5589ACPZ-00-R7.
請參閱 資料表 以查看完整腳位配置。
典型應用
ADP5589ACPZ-00-R7 適用於 6 應用s: Portable Device Keypad, Remote Control Interface, Industrial Instrumentation Panel, Healthcare Control Panel, Camera and Imaging Control, Programmable Indicator Control.
Portable Device Keypad
The ADP5589ACPZ-00-R7 fits portable devices that need more controls than the host processor provides directly. Its 19 configurable I/Os support a keypad matrix up to 11 × 8, while key press and release interrupts allow the processor to respond to user input without continuously polling every key. The 16-element FIFO helps retain events during host-side processing, and the integrated PWM generator can support indicator or backlight functions. A 3.5 mm × 3.5 mm 24-LFCSP-WQ package also supports compact layouts.
推薦
Remote Control Interface
The ADP5589ACPZ-00-R7 is suitable for remote controls and handheld products combining a matrix keypad with auxiliary buttons, indicators, and programmable control outputs. Its integrated keypad decoder supports matrices up to 11 × 8, and key press and release interrupts provide event-driven communication with the host. The configurable GPIOs can support additional controls in push-pull or open-drain modes, while dual programmable logic blocks can implement compact sequencing behavior without a separate logic device.
推薦
Industrial Instrumentation Panel
The ADP5589ACPZ-00-R7 can add a keypad and discrete panel I/O to industrial instrumentation. The 19 configurable channels accommodate matrix keys, status indicators, and control signals, while the 16-element FIFO records events during intermittent processor activity. Selectable 100 kΩ or 300 kΩ pull-ups and 300 kΩ pull-downs support different board-level arrangements. Its 3.5 mm × 3.5 mm 24-LFCSP-WQ package reduces footprint compared with a large discrete keypad driver.
推薦
Healthcare Control Panel
The ADP5589ACPZ-00-R7 is appropriate for healthcare equipment that uses a keypad alongside other operator controls. Key press and release interrupts allow the host to distinguish input events, and the integrated FIFO provides a buffer for recorded activity. The device supports keypad matrices up to 11 × 8 and configurable push-pull or open-drain outputs for indicators and auxiliary signals. Designers should still complete the manufacturer's electrical, safety, and application-specific qualification requirements before deployment.
推薦
Camera and Imaging Control
The ADP5589ACPZ-00-R7 can extend a camera or imaging module with local buttons, keypad inputs, status LEDs, and programmable output signals. The host processor can receive key press and release interrupts instead of continuously scanning the matrix, improving firmware responsiveness. The 19-channel I/O capacity and selectable push-pull or open-drain outputs provide flexibility for product-specific indicators and controls, while the compact 3.5 mm × 3.5 mm package helps preserve board area in portable imaging equipment.
推薦
Programmable Indicator Control
The ADP5589ACPZ-00-R7 can control and monitor indicators when a product needs more local I/O than the main MCU offers. Its PWM generator supports internal or external PWM operation for brightness or repetition-rate control, while configurable GPIO outputs can drive push-pull or open-drain loads. The dual programmable logic blocks add local sequencing capability, and the 16-element FIFO can record button events. Exact current limits and drive timing must be verified in the manufacturer datasheet before connecting loads.
推薦
推薦產品摘要
工程參考資料，適用於 ADP5589ACPZ-00-R7 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ADP5589ACPZ-01-R7 | ADP5589ACPZ-02-R7 |
|---|---|---|---|
| Product Type | 19-channel GPIO port expander with keypad decoder | 19-channel GPIO port expander with keypad decoder | 19-channel GPIO port expander with keypad decoder |
| Brand | Analog Devices | Analog Devices | Analog Devices |
| Package | 24-LFCSP-WQ (3.5x3.5) | 24-LFCSP-WQ (3.5x3.5) | 24-LFCSP-WQ (3.5x3.5) |
| Configurable I/O Count | 19 channels | 19 channels | 19 channels |
| Keypad Matrix Capacity | Up to 11 × 8 | Up to 11 × 8 | Up to 11 × 8 |
| Event FIFO | 16 elements | 16 elements | 16 elements |
| Programmable Logic | Dual programmable logic blocks | Dual programmable logic blocks | Dual programmable logic blocks |
| Output Modes | Push-pull or open-drain | Push-pull or open-drain | Push-pull or open-drain |
| Pull-Up Options | 100 kΩ or 300 kΩ | 100 kΩ or 300 kΩ | 100 kΩ or 300 kΩ |
| PWM Generator | Internal and external PWM capability | Internal and external PWM capability | Internal and external PWM capability |
主要差異化特點
- Integrated keypad decoder with broad matrix support (對比ADP5589ACPZ-01-R7)
- Event buffering reduces missed-control risk (對比ADP5589ACPZ-02-R7)
- Programmable local functions reduce external logic (對比ADP5589ACPZ-01-R7)
設計說明
Route the keypad matrix and event lines away from noisy switching nodes, and place the interface components close to the ADP5589ACPZ-00-R7 pins. The device supports selectable 100 kΩ or 300 kΩ pull-ups and 300 kΩ pull-downs, so the physical resistor arrangement should follow the selected GPIO mode and the manufacturer's recommended application circuit.
Do not treat the ADP5589ACPZ-01-R7 and ADP5589ACPZ-02-R7 ordering variants as automatically interchangeable with the -00 variant. The supplied sources identify the same package family but do not quantify every configuration difference. Verify the ordering information, register behavior, keypad configuration, interrupt polarity, and host firmware expectations before substitution.
Decouple the ADP5589 supply according to the manufacturer datasheet and keep the exposed pad and ground return path electrically and thermally continuous. Because the verified data does not include supply-voltage limits, quiescent current, or decoupling values, use the manufacturer PDF for those details rather than estimating capacitor values or supply limits.
合規資訊
The supplied verified web data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred from the manufacturer or package.
