MC908AP32ACFBE - 8-Bit 8MHz 32KB Flash MCU | NXP
MPN： MC908AP32ACFBE ✗ 停產MC908AP32ACFBE 概覽
A microcontroller is a programmable semiconductor that integrates a CPU core, memory, digital I/O, and peripherals into one device. The 8-bit MCU category is suited to compact control systems that evaluate logic and operate sensors, actuators, communication interfaces, or human-machine interfaces. Within the broader hierarchy, the MC908AP32ACFBE is an MCU, then a semiconductor, and ultimately an embedded-control component used to execute firmware and coordinate real-time system behavior.
The verified feature set identifies 32 KB of Flash memory, 8 MHz clock capability, and 32 I/O ports. Flash retains program code when power is removed, allowing firmware updates and persistent configuration, while the 32 digital I/O pins provide connections for switches, indicators, sensors, and external control logic. The high-speed-oscillator HC08APxA version is distinguished from the related HC08AP family by its oscillator configuration, but detailed peripheral assignments and electrical limits were not included in the supplied source material.
Architecture is centered on the enhanced M68HC08 CPU08 core. An 8-bit processor processes one byte per machine-data path and is typically used where deterministic control, modest arithmetic demands, and low system complexity matter more than high computational throughput. The verified 8 MHz operating point supports general-purpose embedded tasks, although real firmware performance depends on instruction mix, memory behavior, peripherals, and interrupt load.
Typical uses include compact industrial controllers, appliance interfaces, motor-sequence controls, instrumentation, and small communication modules. For a new design, the NXP end-of-life status should trigger review of the NXP replacement program, last-time-buy timing, and firmware compatibility. Existing production equipment may continue using MC908AP32ACFBE if its 44-QFP footprint and software environment remain unchanged, but a redesign should compare any suggested replacement for memory, peripherals, pinout, voltage, timing, and toolchain compatibility.
Layout must preserve the exact 44-QFP land pattern and route decoupling and clock inputs according to the manufacturer data. Because the supplied data does not include a verified pin table, designers must obtain the official package drawing before assigning signals; analogous-looking HC08 devices must not be assumed interchangeable.
This page combines verified lifecycle, memory, clock, package, temperature, commercial, and cross-reference information with explicit engineering caveats. It is designed to support sourcing decisions while avoiding unsupported assumptions about electrical limits, pin functions, peripherals, or unverified replacement devices.
直接替換替代品，適用於 MC908AP32ACFBE — 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： MC908AP32ACFBE （相同外形與佔位） — 差異在於 Package, Architecture, Flash Memory, Mounting Type, Product Type.
此產品無可直接替換的替代品。
申請替代品MC908AP32ACFBE 最大額定值與電氣特性
| Product Type | 8-bit microcontroller |
| CPU Core | Enhanced M68HC08 CPU08 |
| Product Family | HC08AP |
| Series | M68HC08 |
| Clock Speed | 8 MHz |
| Oscillator Version | High-speed oscillator |
| Program Memory | 32 KB Flash |
| Memory Organization | 32K x 8 bits |
| I/O Ports | 32 |
| 供應電壓 | 4.5 V to 5.5 V |
| 工作溫度 | -40 °C to +85 °C |
| 封裝 | 44-QFP, 10 x 10 mm |
| 安裝類型 | Surface mount |
| 生命週期狀態 | End of Life |
| Manufacturer | NXP Semiconductors |
MC908AP32ACFBE 44-qfp, 10 x 10 mm 腳位配置指南
MC908AP32ACFBE（44-qfp, 10 x 10 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： MC908AP32ACFBE.
請參閱 資料表 以查看完整腳位配置。
典型應用
MC908AP32ACFBE 適用於 6 應用s: Compact Industrial Control, Appliance Control Board, Motor Sequence Controller, Instrumentation Interface, Communication Gateway Module, IoT Sensor Controller.
Compact Industrial Control
The MC908AP32ACFBE fits compact digital-control tasks where an 8-bit CPU, 32 KB Flash, and 32 I/O ports are sufficient. It can manage discrete inputs, indicators, relays, and a simple sequencing state machine without a higher-cost processor. Its verified -40 °C to +85 °C industrial range supports equipment intended for controlled indoor environments, while the 4.5-5.5 V supply simplifies compatibility with established 5 V control boards. Because NXP marks the MCU end of life, new industrial programs should first review the official replacement path and plan for firmware, footprint, and long-term supply validation.
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Appliance Control Board
The MC908AP32ACFBE is appropriate for appliance controllers that use Flash-resident firmware for mode selection, timing, button handling, motor sequencing, and status indication. Its 32 KB program memory provides room for a modest control application, while 32 I/O ports can distribute signals among switches, displays, sensors, and actuators. The 8 MHz CPU08 core is better suited to deterministic logic than compute-heavy tasks. Installation is straightforward in a proven HC08 design, but a new appliance platform should account for NXP's end-of-life designation and obtain verified replacement guidance before committing tooling.
推薦
Motor Sequence Controller
The MC908AP32ACFBE can serve as a sequencing controller for small motors, solenoids, valves, or lamps when the system primarily requires deterministic I/O sequencing. The 8 MHz CPU08 core and 32 I/O ports can coordinate commands and read limit or status inputs, while 32 KB Flash retains the control firmware. The 4.5-5.5 V operating range aligns with many 5 V logic boards. Designers must verify available timers, interrupt behavior, output-driver ratings, protection requirements, and start-up timing from the official datasheet because those details were not included in the supplied source data.
推薦
Instrumentation Interface
The MC908AP32ACFBE can coordinate front-panel controls, status LEDs, sensor multiplexing, and data handling in a small instrumentation module. Its 32 I/O ports offer a broad digital interface, and the 32 KB Flash capacity supports menu logic, calibration tables, diagnostics, and communication routines. The 8-bit architecture is effective when the instrument's primary functions are supervisory rather than mathematically intensive. Before using it for precision measurement signal chains, verify ADC availability, reference characteristics, analog pins, timer resolution, and noise performance from the manufacturer documentation.
推薦
Communication Gateway Module
The MC908AP32ACFBE may be used in a small protocol gateway or sensor-hub module when the CPU08 handles framing, command parsing, status reporting, and local I/O control. The 32 KB Flash capacity provides a fixed firmware region, while 32 I/O ports can connect discrete sensors and communication hardware. Performance depends on the selected serial peripherals, data rate, protocol overhead, and interrupt load, none of which were verified in the supplied results. A gateway redesign should also resolve the end-of-life risk and confirm whether any NXP successor preserves the CPU08 code and peripheral environment.
推薦
IoT Sensor Controller
The MC908AP32ACFBE is applicable to a simple IoT sensor node that gathers discrete inputs, runs local control logic, and drives a low-power communications link. Its 32 KB Flash stores application firmware, while the 32 I/O ports support sensors, indicators, and configuration switches. The MCU is most useful where 8-bit processing and a 5 V-class supply are adequate rather than where high data throughput or sophisticated security is required. Verify available serial peripherals, RAM, watchdog functions, and low-power behavior before design-in, and account for end-of-life sourcing or an explicitly supported migration path.
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推薦產品摘要
工程參考資料，適用於 MC908AP32ACFBE — 比較、設計指引及合規資訊。
選型指南
設計說明
Do not treat another HC08AP member as a drop-in replacement merely because its family name matches. The verified target is the 44-QFP, 8 MHz, 32 KB Flash, 32-I/O MC908AP32ACFBE, while related comparisons may differ in memory, package, oscillator implementation, or peripheral mapping. Obtain the official pin drawing and compare every connected signal before substitution. Confirm the complete footprint, exposed thermal-pad requirement, voltage limits, clock pins, reset behavior, and programming interface against the manufacturer data.
Design the board for the verified 4.5 V to 5.5 V operating supply, but do not infer internal core voltage, absolute maximum limits, or required decoupling values from the distributor summary. Follow the NXP data sheet for supply sequencing, reset, clock, and bypass-capacitor recommendations. Estimated: because actual input voltage, current, and thermal resistance were not supplied, no defensible power-loss or junction-temperature calculation can be made. Prototype boards should measure current across operating modes and include adequate local supply decoupling.
Preserve the verified 44-QFP 10 x 10 mm land pattern and follow the official package drawing for pin numbering and assembly clearances. Keep clock routing short, provide a clean return path beneath sensitive digital routes, and place required bypass capacitors close to their associated pins. Because the supplied data does not contain a pin table or PCB recommendations, engineers must consult the NXP package and hardware documentation rather than copying a generic HC08 layout. Validate new layouts for assembly, test-point access, programming, and EMC margin.
End-of-life sourcing requires a documented mitigation plan. Do not rely on a distributor's historical in-stock count as a long-term supply guarantee, especially when different listings show materially different unit prices. Record supplier, date code, traceability, quantity, and quotation date; confirm whether NXP offers a last-time-buy or approved replacement; and preserve the original firmware toolchain and binaries. If the product is already approved in an industrial system, change control should include both electrical equivalence and lifecycle risk.
合規資訊
The supplied NXP and distributor snippets do not provide verified RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements for MC908AP32ACFBE.
