MC908AB32MFUE - 8-Bit 8MHz 32KB Flash MCU | NXP
料号： MC908AB32MFUE ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MC908AB32MFUE 概述
A microcontroller is a programmable semiconductor that combines a CPU, nonvolatile program memory, data memory, and peripherals on one integrated circuit. The MC908AB32MFUE sits in the hierarchy MCU → 8-bit microcontroller → M68HC08 family → HC08AB family. It is suited to compact embedded-control systems where an 8-bit architecture, integrated data storage, and a moderate pin count are more useful than high processing bandwidth.
The verified device data identifies 32 KB of Flash organized as 32K x 8, 1K x 8 RAM, 51 I/O pins, 8 MHz speed, and a 64-QFP package. A search result also describes 512 bytes of EEPROM, while the broader family data indicates embedded EEPROM or Flash storage for user data. Exact operating voltage, peripherals, timer resources, and electrical limits are not present in the supplied evidence and must be confirmed from the manufacturer datasheet before schematic release.
Typical embedded uses include appliance controllers, simple motor-control logic, industrial interfaces, keypad and display systems, and low-cost automation nodes. Its 51 I/O pins provide useful parallel connectivity for sensors, indicators, communications peripherals, and discrete control signals. The 8 MHz CPU and 32 KB Flash footprint favor compact control firmware rather than graphics-intensive, high-bandwidth, or safety-critical workloads.
The most important design step is lifecycle planning. Because the NXP page states End of Life, engineers should preserve the footprint, verify stock provenance, confirm suffix-specific temperature and qualification requirements, and assess whether a redesign is preferable to relying on obsolete inventory. Do not infer pin compatibility from package similarity alone; use the exact datasheet pin table and validate every replacement electrically and in firmware.
This page consolidates verified manufacturer and distributor information, strict replacement findings, package facts, lifecycle status, and engineering guidance. It separates confirmed values from unavailable parameters so procurement and design teams can identify what must still be checked before purchasing or committing a PCB.
直接替换替代料： MC908AB32MFUE ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MC908AB32MFUE （相同外形与封装尺寸） ——差异在于 Package, Program Memory Size, Supply Voltage, RAM Size, Architecture.
快速对比工具——选择替代料号进行并排对比：
MC908AB32CFUE
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →MC68HC908AB32CFU
✅ 直接替换📋 参考替代料（不在目录中）
MC908AP64CFAER528
✅ 直接替换✓ 有现货
$4.85 / 个
查看数据手册 →MC9S12C64MFUE
✅ 直接替换✓ 有现货
$10.2 / 个
查看数据手册 →MC9S12D64MFUER
✅ 直接替换✓ 有现货
$1.0524 / 个
查看数据手册 →MC908AB32MFUE 最大额定值与电气特性
| Product Type | 8-bit microcontroller unit (MCU) |
| Series | HC08 / HC08AB |
| CPU | Enhanced M68HC08 CPU08 |
| Maximum Clock Speed | 8 MHz |
| Program Memory Type | Flash |
| Program Memory Size | 32 KB (32K x 8) |
| RAM Size | 1 KB (1K x 8) |
| EEPROM | 512 bytes |
| Number of I/O | 51 pins |
| 封装 | 64-QFP (14 x 14 mm) |
| 安装类型 | Surface mount |
| Architecture | 8-bit |
MC908AB32MFUE 64-qfp (14 x 14 mm) 引脚配置指南
MC908AB32MFUE（64-qfp (14 x 14 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： MC908AB32MFUE.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MC908AB32MFUE 适用于 7 应用s: Legacy appliance control, Simple motor and relay control, Industrial sensor interface, Keypad and display interface, Compact automation controller, Battery-powered embedded node, Communication gateway interface.
Legacy appliance control
The MC908AB32MFUE fits an existing appliance controller because its 8 MHz CPU08 supports compact real-time logic, while 32 KB of Flash stores application firmware and 1 KB of RAM supports short working states. The 51-I/O count can connect keys, indicators, sensors, and discrete control stages without a large external interface controller. Because the device is end of life, prefer it for repair and lifecycle-extension work rather than a new platform. Before reusing the board, verify exact pin functions, voltage limits, oscillator requirements, and programming compatibility from the NXP datasheet.
推荐
Simple motor and relay control
The MC908AB32MFUE can manage discrete sequencing for relays, solenoids, or small motor-control stages where deterministic low-level logic is sufficient. Its 51 I/O pins provide parallel control capacity, and the 8 MHz CPU supports fast polling and basic protection sequences. It does not replace a dedicated motor driver or high-performance real-time control loop. Verify output-drive limits, timing, watchdog behavior, and isolation before connecting inductive loads; suitable gate drivers and protection components should be selected separately from the MCU data.
推荐
Industrial sensor interface
The 51 available I/O pins make the MC908AB32MFUE useful in a legacy sensor-conditioning node where switches, discrete sensors, alarm inputs, and status outputs share one controller. Its 32 KB Flash and 1 KB RAM are adequate for compact acquisition and filtering code but constrain modern connectivity and buffering. The 8 MHz class is appropriate for modest polling rates, not high-bandwidth sampling. Maintain the original board architecture because replacing this end-of-life MCU with a different architecture can require pin reassignment, firmware changes, clock adaptation, and complete functional validation.
推荐
Keypad and display interface
In an existing keypad-and-display product, the MC908AB32MFUE can scan switches, update LEDs, and manage a simple display interface through its broad I/O complement. The 32 KB Flash footprint accommodates menu logic, key mapping, debounce routines, and basic diagnostics, while 1 KB of RAM remains the key resource constraint. Parallel I/O use can reduce external multiplexing, although timing and current limits must follow the exact electrical specification. For a new design, favor an active MCU with more memory and a supported display ecosystem to avoid deepening an end-of-life dependency.
推荐
Compact automation controller
The MC908AB32MFUE is suitable for maintaining a compact automation controller with distributed digital inputs, relay outputs, status feedback, and a simple supervisory loop. Its 8 MHz CPU and 51 I/O pins provide adequate parallelism for low-bandwidth tasks, while 32 KB Flash supports compact control firmware. Reliability design should include watchdogs, fail-safe output states, and validated I/O levels because generic product snippets do not establish the complete peripheral or safety specification. Given end-of-life status, use it only where existing hardware continuity and proven software outweigh new-platform benefits.
推荐
Battery-powered embedded node
The MC908AB32MFUE may serve in an existing low-duty-cycle embedded node where periodic sensor sampling and local logic are more important than continuous processing. Its 8 MHz architecture and 32 KB Flash can implement simple state machines, while sleep-mode suitability and active current must be checked in the complete datasheet before estimating battery life. The 51 I/O pins are useful for sparse sensor nodes but consume board area and can increase leakage-sensitive routing complexity. Validate low-power behavior, temperature range, and supply regulation rather than assuming suitability from clock speed alone.
推荐
Communication gateway interface
The MC908AB32MFUE can handle basic framing, status, and control tasks around a discrete communications transceiver in an existing HC08AB system. Its 51 I/O lines offer parallel UART, SPI, interrupt, and reset connections depending on the device's verified peripheral allocation. The 8 MHz class can support moderate protocol overhead but not high-throughput traffic, and 1 KB of RAM may constrain buffering. Because alternate-function mapping and electrical timing are not supplied, engineers must consult the exact datasheet and transceiver requirements before laying out or replacing the interface.
推荐
推荐产品汇总
工程参考数据： MC908AB32MFUE ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MC908AB32CFUE | MC68HC908AB32CFU | MC908AP64CFAER528 | MC9S12C64MFUE | MC9S12D64MFUER |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 64-QFP (14 x 14 mm) | 64-QFP (14 x 14 mm) | 64-QFP (14 x 14 mm) | 64-QFP (14 x 14 mm) | 64-QFP (14 x 14 mm) | 64-QFP (14 x 14 mm) |
| CPU Class | 8-bit CPU08 | 8-bit HC08 | 8-bit HC08 | 8-bit HC08 family | 16-bit MC9S12 family | 16-bit MC9S12 family |
| Pin-to-Pin Verification | Original device | Not established by supplied data | Not established by supplied data | Not established by supplied data | Not established by supplied data | Not established by supplied data |
关键差异点
- Exact legacy identity for maintenance （对比 MC908AB32CFUE)
- HC08AB resource profile （对比 MC9S12C64MFUE)
- Broad confirmed parallel interface （对比 MC68HC908AB32CFU)
设计说明
Do not approve a substitute from package size or headline memory data alone. Compare all pins in the original and candidate datasheets, including power, ground, reset, oscillator, programming, and alternate-function signals. The MC908AB32MFUE is end of life, so a sourcing alternative may also require firmware, timing, and BOM changes. Retain a known-good original device until electrical and functional equivalence has been demonstrated.
Preserve the original 64-QFP land pattern and routing unless the manufacturer package drawing confirms mechanical compatibility. QFP lead pitch, body size, courtyard, and exposed thermal requirements must match; the verified package description is 64-QFP, 14 x 14 mm, but its detailed drawing was not supplied. Inspect solderability, lead coplanarity assumptions, assembly profile, and supplier traceability before authorizing large end-of-life orders.
Verify supply voltage, I/O levels, oscillator arrangement, reset timing, and peripheral current from the exact datasheet before powering an assembled board. The supplied evidence confirms 3.3 V/5 V in a comparison snippet but does not establish every operating limit or suffix condition, so no universal rail recommendation is made. Include local decoupling and power-sequence checks in bring-up, especially when sourcing aged inventory.
For existing HC08AB boards, keep sensitive clock and reset routing short and preserve the proven grounding and decoupling arrangement. If migrating to a different MCU family, treat it as a redesign rather than a footprint swap: budget, flash programming, interrupt vectors, timer resources, and peripheral mappings may differ. Validate EMI and signal integrity around external buses, and use current datasheets instead of inferred alternate functions.
End-of-life procurement creates counterfeit, remarked, stale, and traceability risks. Require seller provenance, date code, lot records, inspection results, and written warranty terms; incoming-test the MCU program and analog functions on representative production hardware. Avoid using a distributor search page as proof of current stock, authorized distribution, or manufacturer condition.
合规信息
The supplied snippets do not provide explicit compliance declarations. One comparison source mentions RoHS and REACH, but no authoritative statement or exact target-device result is included.
