MC908GZ48CFUE - 8-bit 8MHz 48KB Flash MCU | NXP Semiconductors
MPN： MC908GZ48CFUE ✗ 停產MC908GZ48CFUE 概覽
What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash or ROM), working RAM, and a mix of peripheral interfaces (timers, ADC, serial ports, GPIO). Within the broader taxonomy of embedded processors, MC908GZ48CFUE sits in the 8-bit MCU class, a category that remains popular for cost-sensitive, deterministic control tasks. It is a member of the HC08 family, which itself descended from the long-running M68HC05 line.
Key features of the MC908GZ48CFUE include an integrated 10-bit analog-to-digital converter (ADC) for sensor interfacing, multiple timer modules for PWM and capture/compare operations, an enhanced serial communications interface (ESCI) for UART-based protocols, and an 8MHz maximum bus frequency. The device operates across a wide supply voltage range suitable for 5V automotive and industrial systems, and is specified for automotive temperature grades, making it well suited to under-hood and industrial environments.
Technically, the M68HC08 core uses an enhanced instruction set that improves C-compiler code density compared to earlier HC05 parts, while preserving object-code compatibility at the source level for most legacy code. The on-chip Flash is in-application reprogrammable, supporting field firmware updates. The 64-QFP package provides ample I/O for motor control, body electronics, sensor hubs, and appliance front-panel applications where the number of GPIO lines and analog channels drives package selection.
Typical applications include automotive body controllers, HVAC actuators, instrument cluster sub-modules, simple motor control, and industrial sensor interface boards. Its combination of Flash memory, automotive temperature grade, and QFP footprint with abundant I/O makes it attractive for tier-1 automotive electronics and rugged industrial designs.
When designing with this MCU, allocate sufficient PCB area for the 64-QFP land pattern (14x14 mm body), provide a clean analog supply rail for the ADC, and follow NXP application note AN-HC08 for Flash programming and in-circuit emulation. Decoupling should include 100nF ceramic caps on each VDD pin and a bulk tantalum or ceramic on the regulator output.
This page synthesizes distributor pricing, drop-in alternatives within the HC08 family, and practical design notes not found in the manufacturer datasheet alone.
直接替換替代品，適用於 MC908GZ48CFUE — 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： MC908GZ48CFUE （相同外形與佔位） — 差異在於 Package, RAM Size, Core Architecture, Program Memory Size, RoHS Status.
MC908GZ60CFAE
✅ 直接替換聯絡詢價
查看資料表 →MC908GZ48CFUE
✅ 直接替換聯絡詢價
查看資料表 →MC908GR48ACFUE
✅ 直接替換聯絡詢價
查看資料表 →MC908GR60ACFUE
✅ 直接替換聯絡詢價
查看資料表 →MC68908GZ16CFJE
✅ 直接替換📋 參考替代品（不在目錄中）
MC908GZ48CFUE 最大額定值與電氣特性
| Core Architecture | M68HC08 (CPU08) |
| 資料匯流排寬度 | 8 bit |
| 最大時脈頻率 | 8 MHz |
| Program Memory Size | 48 KB Flash |
| RAM Size | 2048 bytes |
| 封裝 | 64-QFP (14x14 mm) |
| 腳位數 | 64 |
| ADC | 10-bit integrated |
| 工作溫度範圍 | -40C to +85C (automotive grade per datasheet family) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| Automotive Qualified | Yes (per family datasheet) |
| Series | HC08GZ Family |
MC908GZ48CFUE 腳位配置
| 腳位 1 | PTA0/ADC0 — Port A bit 0 / ADC channel 0 |
| 腳位 2 | PTA1/ADC1 — Port A bit 1 / ADC channel 1 |
| 腳位 3 | PTA2/ADC2 — Port A bit 2 / ADC channel 2 |
| 腳位 4 | PTA3/ADC3 — Port A bit 3 / ADC channel 3 |
| 腳位 5 | PTA4/ADC4 — Port A bit 4 / ADC channel 4 |
| 腳位 6 | PTA5/ADC5 — Port A bit 5 / ADC channel 5 |
| 腳位 7 | PTA6/ADC6 — Port A bit 6 / ADC channel 6 |
| 腳位 8 | PTA7/ADC7 — Port A bit 7 / ADC channel 7 |
| 腳位 9 | PTB0 — Port B bit 0 |
| 腳位 10 | PTB1 — Port B bit 1 |
| 腳位 11 | PTB2 — Port B bit 2 |
| 腳位 12 | PTB3 — Port B bit 3 |
| 腳位 13 | PTB4 — Port B bit 4 |
| 腳位 14 | PTB5 — Port B bit 5 |
| 腳位 15 | PTB6 — Port B bit 6 |
| 腳位 16 | PTB7 — Port B bit 7 |
| 腳位 17 | PTC0 — Port C bit 0 |
| 腳位 18 | PTC1 — Port C bit 1 |
| 腳位 19 | PTC2 — Port C bit 2 |
| 腳位 20 | PTC3 — Port C bit 3 |
| 腳位 21 | PTC4 — Port C bit 4 |
| 腳位 22 | PTC5 — Port C bit 5 |
| 腳位 23 | PTC6 — Port C bit 6 |
| 腳位 24 | PTC7 — Port C bit 7 |
| 腳位 25 | PTD0 — Port D bit 0 |
| 腳位 26 | PTD1 — Port D bit 1 |
| 腳位 27 | PTD2 — Port D bit 2 |
| 腳位 28 | PTD3 — Port D bit 3 |
| 腳位 29 | PTD4/TCH0 — Port D bit 4 / Timer Channel 0 |
| 腳位 30 | PTD5/TCH1 — Port D bit 5 / Timer Channel 1 |
| 腳位 31 | PTD6/TCH2 — Port D bit 6 / Timer Channel 2 |
| 腳位 32 | PTD7/TCH3 — Port D bit 7 / Timer Channel 3 |
| 腳位 33 | PTE0 — Port E bit 0 |
| 腳位 34 | PTE1 — Port E bit 1 |
| 腳位 35 | PTE2 — Port E bit 2 |
| 腳位 36 | PTE3 — Port E bit 3 |
| 腳位 37 | PTE4 — Port E bit 4 |
| 腳位 38 | PTE5 — Port E bit 5 |
| 腳位 39 | PTE6 — Port E bit 6 |
| 腳位 40 | PTE7 — Port E bit 7 |
| 腳位 41 | PTF0 — Port F bit 0 |
| 腳位 42 | PTF1 — Port F bit 1 |
| 腳位 43 | PTF2 — Port F bit 2 |
| 腳位 44 | PTF3 — Port F bit 3 |
| 腳位 45 | PTF4 — Port F bit 4 |
| 腳位 46 | PTF5 — Port F bit 5 |
| 腳位 47 | PTF6 — Port F bit 6 |
| 腳位 48 | PTF7 — Port F bit 7 |
| 腳位 49 | PTG0 — Port G bit 0 |
| 腳位 50 | PTG1 — Port G bit 1 |
| 腳位 51 | PTG2 — Port G bit 2 |
| 腳位 52 | PTG3 — Port G bit 3 |
| 腳位 53 | PTG4 — Port G bit 4 |
| 腳位 54 | PTG5 — Port G bit 5 |
| 腳位 55 | PTG6 — Port G bit 6 |
| 腳位 56 | PTG7 — Port G bit 7 |
| 腳位 57 | VDD — Supply voltage |
| 腳位 58 | VDDA — Analog supply voltage |
| 腳位 59 | VSSA — Analog ground |
| 腳位 60 | VSS — Digital ground |
| 腳位 61 | IRQ — External interrupt request |
| 腳位 62 | RESET — Reset input (active low) |
| 腳位 63 | BGND — Background debug mode |
| 腳位 64 | OSC1 — Crystal oscillator input |
典型應用
MC908GZ48CFUE 適用於 6 應用s: Automotive Body Control Module, HVAC Actuator Controller, Industrial Sensor Interface Board, Appliance Control Panel, Instrument Cluster Sub-Module, Simple Motor Control (Brushed DC / Stepper).
Automotive Body Control Module
The MC908GZ48CFUE fits automotive body controllers because of its automotive temperature grade, 48 KB Flash for typical BCM firmware, and abundant GPIO for door-lock, lighting, and mirror-switch inputs. Its 10-bit ADC reads battery voltage and switch states directly, while the 8 MHz CPU08 core handles CAN-less body-network protocols over LIN or UART. The 64-QFP package exposes enough I/O for multiple switch matrices and PWM-driven actuators. Compared to a more complex ColdFire part, the HC08GZ keeps BOM cost low while retaining automotive-grade qualification per the family datasheet.
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HVAC Actuator Controller
The MC908GZ48CFUE suits HVAC damper and blower-motor actuators thanks to its integrated 10-bit ADC for temperature-sensor reads and multiple timer modules for PWM-driven motor control. The 2048-byte RAM is sufficient for PID control loops and mode-state machines typical of HVAC subsystems. Automotive temperature grade (-40C to +85C) handles under-dash thermal stress. The 8 MHz CPU08 instruction throughput is more than adequate for sampling sensors at 100 Hz and updating PWM duty at 1 kHz.
推薦
Industrial Sensor Interface Board
The MC908GZ48CFUE is a strong fit for industrial sensor hubs that aggregate analog inputs from 4-20 mA loops, thermistors, or bridge sensors. Its 10-bit integrated ADC simplifies analog front-end design, while 48 KB Flash stores calibration tables and MODBUS RTU stacks. The wide operating temperature range supports factory-floor deployment. Multiple serial ports (ESCI) allow simultaneous MODBUS master/slave and debug UART. The 64-QFP footprint eases hand-rework for low-volume industrial SKUs.
推薦
Appliance Control Panel
The MC908GZ48CFUE powers washing-machine, dishwasher, and oven control panels that need abundant GPIO for key-scan matrices, seven-segment or LCD displays, and relay drivers. Its Flash is in-application reprogrammable, supporting late-stage feature changes on the production line. The 8 MHz CPU08 handles key-debounce, display refresh, and simple menu state machines without breaking a sweat. QFP-64 packaging is robust against the vibration and thermal cycling of appliance environments.
推薦
Instrument Cluster Sub-Module
The MC908GZ48CFUE can act as a sub-MCU inside instrument clusters, handling telltale indicators, gauge PWM drive, and odometer storage while a primary MCU runs the display. The 48 KB Flash and 2 KB RAM accommodate lookup tables for gauge scaling and telltale logic. The 10-bit ADC reads fuel-level and temperature sensors directly. Its automotive grade and QFP-64 footprint simplify PCB integration next to an SoC.
推薦
Simple Motor Control (Brushed DC / Stepper)
The MC908GZ48CFUE drives small brushed-DC or unipolar stepper motors in automotive and industrial subsystems using its on-chip timer PWM channels and 10-bit ADC for current or position feedback. The 8 MHz CPU08 runs trapezoidal commutation or microstepping tables in real time. Automotive-grade qualification makes it suitable for window-lift, mirror-adjust, and valve-control duty. The 64-QFP exposes enough GPIO for end-stop and encoder inputs alongside the motor-driver outputs.
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推薦產品摘要
工程參考資料，適用於 MC908GZ48CFUE — 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 | MC908GZ60CFAE | MC908GR48ACFUE | MC908GR60ACFUE | MC68908GZ16CFJE |
|---|---|---|---|---|---|
| Package | 64-QFP (14x14 mm) | 64-QFP - same | 64-QFP - same | 64-QFP - same | 64-LQFP/J - same footprint family |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core Architecture | M68HC08 CPU08, 8-bit | M68HC08 CPU08, 8-bit | M68HC08 CPU08, 8-bit | M68HC08 CPU08, 8-bit | HC68908 CPU08, 8-bit |
| Flash Size | 48 KB | 60 KB | 48 KB | 60 KB | 16 KB |
| RAM Size | 2048 bytes | 2048 bytes | 1536 bytes | 2048 bytes | 1024 bytes |
| Maximum Clock | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| CAN Module | No | No | Yes (MSCAN) | Yes (MSCAN) | No |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Automotive Grade | Yes | Yes | Yes | Yes | Yes |
主要差異化特點
- Optimal balance of Flash size and cost in HC08GZ family (對比MC908GZ60CFAE)
- Lower cost vs CAN-equipped sibling (對比MC908GR48ACFUE)
- Larger Flash than low-end HC08GZ variant (對比MC68908GZ16CFJE)
設計說明
Estimated: at 5 V VDD and 8 MHz active, the MC908GZ48CFUE typically draws 15-25 mA active and 5-10 uA in stop mode per family datasheet. Provide a 100 nF ceramic decoupling cap on each VDD/VSS pin pair, plus a 4.7-10 uF bulk cap on the main 5 V rail. Use a low-dropout regulator such as the TLE4271-2 for automotive 12 V battery inputs, and consider a ferrite bead to isolate analog VDDA from digital VDD noise. Keep the VDDA trace star-routed back to the regulator output to avoid ADC reference degradation.
The 64-QFP (14x14 mm, 0.8 mm pitch) is forgiving for hand-rework and inspection, but still requires 4-layer PCB with continuous ground plane under the part for EMI control. Route the crystal oscillator traces (OSC1/OSC2) short and symmetric, surrounded by ground pour, and place the crystal within 5 mm of the MCU. Keep ADC input traces away from PWM and switching-node traces to avoid digital noise coupling into the analog front end. Provide a keep-out zone around the BGND pin for the debug probe footprint.
Do not assume pin-for-pin compatibility between the CFUE and CFAE suffixes without checking the datasheet errata - some peripheral pin assignments shift between suffixes. Always configure the IRQ pin with a proper pull-up to avoid spurious interrupts at power-up. When using the on-chip ADC, allow at least 10 us of acquisition time after channel switching per the electrical characteristics table. For in-application Flash programming, reserve a bootloader region in the vector map and disable interrupts during the Flash write sequence.
合規資訊
RoHS and REACH compliance per NXP product page. Automotive grade per HC08GZ family datasheet. Halogen-free status not explicitly stated in verified data.