ADP5589ACPZ-02-R7 - 19-Channel GPIO and Keypad Controller | Analog Devices
MPN： ADP5589ACPZ-02-R7 ✓ 啟用中ADP5589ACPZ-02-R7 概覽
A GPIO port expander is an interface IC that increases the number of general-purpose inputs and outputs available to a host processor. The ADP5589 combines that conventional expansion function with dedicated keypad decoding, programmable logic blocks, interrupt generation, and PWM generation. This integration reduces the need for separate matrix-scanning controllers and allows a host to monitor buttons, read switch states, drive LEDs, and generate pulse-width-modulated outputs through one device.
The 19 configurable I/O channels support GPIO functions including key press and release interrupts, key lock and unlock functions, selectable interrupt levels, 100 kΩ or 300 kΩ pull-up options, and 300 kΩ pull-down resistors. General-purpose outputs can operate as push-pull or open-drain stages. Two programmable logic blocks add decision-making capability, and the integrated PWM generator supports internal PWM generation as well as external PWM configurations using internal logic signals.
The ADP5589 is designed for systems where a primary microcontroller has too few pins for a keypad, indicator, or auxiliary control interface. Its FIFO can retain a sequence of key events for later processing, while interrupt signaling allows the host to react without continuously polling every input. The 24-LFCSP-WQ package supports compact portable equipment, instrumentation, healthcare, industrial, and remote-control designs.
Typical uses include QWERTY and numeric keypads, portable medical controls, camera and remote-control interfaces, programmable industrial panels, and small embedded systems that need additional LEDs, switches, or logic-driven outputs. The device can reduce connector and host-pin requirements while centralizing scanning and event capture.
Designers should confirm the exact -02 ordering option, pin mapping, exposed-pad connection, and electrical limits in the Analog Devices manufacturer datasheet before layout. Input levels, pull-up configurations, interrupt polarity, and keypad matrix dimensions must be checked against the host voltage and mechanical switch arrangement to avoid contention or unintended current draw.
This product page consolidates manufacturer and distributor information, distinguishes documented ADP5589 order variants, and provides application guidance, comparison criteria, and sourcing context that are not presented as a single unified engineering summary in the underlying datasheet and distributor listings.
直接替換替代品，適用於 ADP5589ACPZ-02-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-02-R7 （相同外形與佔位）.
ADP5589ACPZ-00-R7
✅ 直接替換📋 參考替代品（不在目錄中）
ADP5589ACPZ-01-R7
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ADP5589ACPZ-02-R7 規格
| Number of Configurable I/O Channels | 19 channels |
| GPIO Port Expander Type | 19-channel GPIO port expander |
| Keypad Matrix Capacity | Up to 11 × 8 matrix |
| Event FIFO Depth | 16 elements |
| Supply Voltage Range | 1.65 V to 3.6 V |
| Programmable Logic Blocks | 2 blocks |
| Input Pull-Up Resistance Options | 100 kΩ or 300 kΩ |
| Input Pull-Down Resistance | 300 kΩ |
| GPIO Output Modes | Push-pull or open-drain |
| PWM Generator | Internal PWM generation and external PWM with internal PWM and logic |
| Key Interrupt Functions | Key press and key release interrupts |
| Keypad Control | Keypad lock and unlock functions |
| 工作溫度範圍 | -40 °C to +85 °C |
| 封裝 | 24-LFCSP-WQ, 3.5 mm × 3.5 mm |
| 安裝類型 | Surface mount |
| Orderable Packaging | Tape & reel |
ADP5589ACPZ-02-R7 24-lfcsp-wq, 3.5 mm × 3.5 mm 腳位配置指南
ADP5589ACPZ-02-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-02-R7.
請參閱 資料表 以查看完整腳位配置。
典型應用
ADP5589ACPZ-02-R7 適用於 6 應用s: Compact QWERTY and Numeric Keypads, Portable Medical-Control Panels, Camera and Remote-Control Interfaces, Programmable Industrial Control Panels, Handheld Instrumentation and Test Controls, LED and Simple Actuator Control.
Compact QWERTY and Numeric Keypads
ADP5589ACPZ-02-R7 fits compact keypads because it combines keypad decoding with 19 configurable GPIO channels and can scan a matrix up to 11 × 8. Its 16-element FIFO records key events, while key press and release interrupts let the host receive input without continuously polling the matrix. The device can also provide lock and unlock functions for keypad behavior. Operating from 1.65 V to 3.6 V supports low-voltage embedded products, although the pull-up configuration and exposed-pad layout must be implemented exactly as specified in the Analog Devices datasheet.
推薦
Portable Medical-Control Panels
ADP5589ACPZ-02-R7 is useful in portable healthcare equipment where membrane keys, mode selectors, status indicators, and alarms would otherwise consume many host pins. Its dedicated keypad decoder supports matrices up to 11 × 8, and the 16-event FIFO helps preserve a sequence of user actions for later processing. Key press and release interrupts reduce unnecessary processor polling, while the 1.65 V to 3.6 V supply range accommodates low-voltage systems. Medical-system designers must still validate the complete application against their own safety and environmental requirements.
推薦
Camera and Remote-Control Interfaces
ADP5589ACPZ-02-R7 can consolidate a keypad, indicator LEDs, switches, and other auxiliary controls in a camera or remote-control product. Its 19 GPIO channels offer push-pull or open-drain output options, configurable pull-ups, and programmable logic blocks that can simplify control sequencing. The PWM generator is useful for indicators or simple actuator timing, while the FIFO captures input events for later processing. Its compact 3.5 mm × 3.5 mm LFCSP package helps preserve board area in portable equipment.
推薦
Programmable Industrial Control Panels
ADP5589ACPZ-02-R7 suits industrial control panels that combine operator keys with lamps, indicators, and discrete I/O. The built-in keypad decoder handles matrices up to 11 × 8, while programmable logic blocks can execute configurable input or output conditions and the PWM generator can support timed visual or control signals. The 16-element FIFO provides event history, and interrupt-driven operation can reduce host-controller workload. For industrial deployment, engineers should verify the -40 °C to +85 °C operating range, EMC requirements, and reset behavior in the final system.
推薦
Handheld Instrumentation and Test Controls
ADP5589ACPZ-02-R7 can expand a handheld instrument that needs a membrane keypad, rotary-control status inputs, LEDs, and trigger outputs. The device's 19 configurable I/O channels reduce the number of host-controller pins needed for these functions, while programmable logic and PWM generation enable local behavior without continuous software polling. Its 16-element FIFO can buffer button or switch events, and interrupt outputs can notify the host of significant activity. The low-voltage supply range is suitable for portable systems, but the exact pinout and exposed-pad layout remain essential for reliable PCB implementation.
推薦
LED and Simple Actuator Control
ADP5589ACPZ-02-R7 is appropriate when a host processor needs programmable outputs for LEDs, buzzers, relays, or simple actuator-control lines in addition to keypad inputs. General-purpose outputs support push-pull and open-drain configurations, and the internal PWM generator can provide variable-duty-cycle control where suitable. Two programmable logic blocks can evaluate input states and drive outputs locally, reducing processor overhead for repetitive behavior. Designers should confirm output current, voltage, and timing limits in the manufacturer datasheet because those values were not available in the supplied verified snippets.
推薦
推薦產品摘要
工程參考資料，適用於 ADP5589ACPZ-02-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-00-R7 | ADP5589ACPZ-01-R7 |
|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices |
主要差異化特點
- Combines keypad scanning and GPIO expansion in one device (對比ADP5589ACPZ-00-R7)
- Supports dense keypad matrices without separate scan logic (對比ADP5589ACPZ-01-R7)
- Adds programmable behavior and PWM generation (對比ADP5589ACPZ-00-R7)
設計說明
Use the 24-LFCSP-WQ land pattern and exposed-pad guidance from the Analog Devices ADP5589 datasheet without extrapolating it from a generic QFN drawing. Keep the GPIO and keypad routes short, provide a solid ground reference, and place decoupling capacitors close to the supply and ground connections. Because individual pin functions were not available in the supplied excerpts, do not finalize the PCB netlist until each pin and the exposed pad have been cross-checked against the official package drawing.
The verified operating range is 1.65 V to 3.6 V. Confirm that the host I/O levels, pull-up network, and attached keypad matrix remain within the device's electrical limits. Use the manufacturer's recommended input and output configurations rather than assuming that every GPIO can simultaneously drive external loads. Detailed current and absolute-maximum values were not supplied and must be obtained from the manufacturer datasheet before final rail and load design.
Do not assume that suffix variants are automatically interchangeable. The verified data confirms ADP5589ACPZ-00-R7 and ADP5589ACPZ-01-R7 within the same family, but it does not expose the differences encoded by -00, -01, and -02. Check the official ordering table, temperature grade, configuration, and qualification before substituting a suffix. Package similarity and the shared ADP5589 function set do not resolve all ordering-option differences.
Plan the keypad matrix so that drive and sense assignments follow the manufacturer's supported configurations. Account for the 100 kΩ and 300 kΩ pull-up options and the 300 kΩ pull-down option when establishing signal levels, scan timing, and current consumption. Keep sensitive control traces away from fast-switching nodes where practical, and use the FIFO and interrupts as intended rather than polling every channel continuously.
合規資訊
The supplied verified snippets do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. The listed -40 °C to +85 °C operating range is an environmental specification and does not establish automotive qualification.
