MC908AP8CFBE - 8-Bit HC08 MCU, 8KB Flash, 8MHz, 44-QFP | NXP
MPN: MC908AP8CFBE ✗ Akhir HidupMC908AP8CFBE Ringkasan
What is an 8-bit microcontroller? An 8-bit microcontroller is a single-chip computer that uses an 8-bit data path and is widely deployed in cost-constrained, deterministic embedded systems. It belongs to the broader category of microcontrollers, which in turn are a subset of microprocessors with integrated memory and peripherals. The HC08 family, in particular, descends from the M68HC08 lineage and targets low-cost, high-reliability motor, appliance, and industrial control designs.
Key features include 8KB of on-chip FLASH program memory, 1KB of RAM, an internal oscillator, a 10-bit analog-to-digital converter, 32 general-purpose I/O pins, and timer modules. The device operates from a single 3.3V/5V supply and includes a 44-pin QFP (10x10 mm) package suitable for space-constrained boards.
The MC908AP8CFBE is built on the M68HC08 CPU architecture (CPU08) with CISC-style instruction set, providing efficient code density and low-cycle interrupts. Its FLASH-based program memory allows fast in-circuit reprogramming during prototyping and field updates. The integrated 10-bit ADC and timers make analog signal acquisition and PWM control feasible without external ICs.
Typical applications include appliance control, motor drives, lighting control, low-end consumer electronics, and industrial automation sensor interfaces. The 8MHz CPU combined with 32 GPIO makes the device well suited to replacing discrete logic in legacy designs.
When designing with this MCU, ensure that the internal oscillator accuracy is sufficient for your timing-critical UART, or use an external crystal. The 32 GPIO share pins with peripheral functions, so reserve clock and reset pins early in the schematic capture process.
This page synthesizes distributor pricing, same-family alternatives, and practical design notes for engineers evaluating the MC908AP8CFBE, complementing the NXP datasheet with selection guidance.
Alternatif penggantian untuk MC908AP8CFBE — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian MC908AP8CFBE (sama faktor bentuk dan footprint) — berbeda di dalam ADC, Package, Core, Peripherals, Program Memory Size.
MC908AP16CFBE
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC908AP32CFBE
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC908AP8CFBER
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC908AP64CFAER528
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC908AP64CFBER
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC908AP8CFBE Rating Maksimal & Karakteristik Listrik
| Manufacturer | NXP Semiconductors (formerly Freescale) |
| Family | M68HC08 / HC08AP |
| Core | CPU08 (8-bit CISC) |
| Program Memory Size | 8 KB (8K x 8) FLASH |
| Program Memory Type | FLASH |
| RAM Size | 1 KB x 8 |
| Maximum CPU Clock | 8 MHz |
| ADC | 10-bit |
| Number of I/O Pins | 32 |
| Oscillator Type | Internal |
| Tegangan Pemuat | 3.3 V / 5 V |
| Paket / Case | 44-LQFP (10x10 mm), QFP |
| Tipe Mounting | Surface Mount |
| Terminal Form | GULL WING |
| Moisture Sensitivity Level | MSL 3 |
| Packaging | Tray |
Konfigurasi Pin MC908AP8CFBE
| Pin produk 1 | VSS — Ground |
| Pin produk 2 | OSC1 — Crystal/clock input or external clock |
| Pin produk 3 | OSC2 — Crystal output |
| Pin produk 4 | RST — External reset, active low |
| Pin produk 5 | IRQ — External interrupt request |
| Pin produk 6 | PTA0 — Port A bit 0 (general I/O or peripheral) |
| Pin produk 7 | PTA1 — Port A bit 1 |
| Pin produk 8 | PTA2 — Port A bit 2 |
| Pin produk 9 | PTA3 — Port A bit 3 |
| Pin produk 10 | PTA4 — Port A bit 4 |
| Pin produk 11 | PTA5 — Port A bit 5 |
| Pin produk 12 | PTA6 — Port A bit 6 |
| Pin produk 13 | PTA7 — Port A bit 7 |
| Pin produk 14 | PTB0 — Port B bit 0 |
| Pin produk 15 | PTB1 — Port B bit 1 |
| Pin produk 16 | PTB2 — Port B bit 2 |
| Pin produk 17 | PTB3 — Port B bit 3 |
| Pin produk 18 | VDD — Positive supply |
| Pin produk 19 | VSS — Ground |
| Pin produk 20 | PTB4 — Port B bit 4 |
| Pin produk 21 | PTB5 — Port B bit 5 |
| Pin produk 22 | PTB6 — Port B bit 6 |
| Pin produk 23 | PTB7 — Port B bit 7 |
| Pin produk 24 | PTC0 — Port C bit 0 |
| Pin produk 25 | PTC1 — Port C bit 1 |
| Pin produk 26 | PTC2 — Port C bit 2 |
| Pin produk 27 | PTC3 — Port C bit 3 |
| Pin produk 28 | PTC4 — Port C bit 4 |
| Pin produk 29 | PTC5 — Port C bit 5 |
| Pin produk 30 | PTC6 — Port C bit 6 |
| Pin produk 31 | PTC7 — Port C bit 7 |
| Pin produk 32 | PTD0 — Port D bit 0 |
| Pin produk 33 | PTD1 — Port D bit 1 |
| Pin produk 34 | PTD2 — Port D bit 2 |
| Pin produk 35 | PTD3 — Port D bit 3 |
| Pin produk 36 | PTD4 — Port D bit 4 |
| Pin produk 37 | PTD5 — Port D bit 5 |
| Pin produk 38 | PTD6 — Port D bit 6 |
| Pin produk 39 | PTD7 — Port D bit 7 |
| Pin produk 40 | PTE0/TxD — Port E bit 0 / SCI transmit |
| Pin produk 41 | PTE1/RxD — Port E bit 1 / SCI receive |
| Pin produk 42 | PTE2 — Port E bit 2 |
| Pin produk 43 | PTE3 — Port E bit 3 |
| Pin produk 44 | VDD — Positive supply |
Aplikasi Umum
MC908AP8CFBE cocok untuk 6 aplikasis: White Goods Appliance Control, Motor Control (Low-Power BLDC/Small DC), Lighting Control and LED Driver Control, Industrial Sensor Interface Module, Automotive Body Electronics (Non-Safety), Point-of-Sale Terminal and Peripherals.
White Goods Appliance Control
The MC908AP8CFBE's 8-bit CPU08 core, 32 GPIO, and 10-bit ADC make it well matched to washing-machine, dishwasher, and refrigerator control boards where deterministic timing and low cost are critical. The device reads temperature sensors, drives relays and triacs, and runs user-interface keypads. Compared to discrete logic, this 8 KB Flash MCU integrates control firmware, sensor acquisition, and PWM outputs in a single 44-LQFP package, reducing BOM complexity for typical 5V white-goods designs.
Direkomendasikan
Motor Control (Low-Power BLDC/Small DC)
The HC08AP core's timer module plus 10-bit ADC enable basic closed-loop motor control for small DC and BLDC fans. With 8 MHz bus clock and 32 GPIO, designers can drive triac-controlled loads or simple 6-step commutation. This part fits compact motor-driver boards where PCB area is limited. Designers should note that the 8 MHz CPU is adequate for low-RPM fan control but a higher-frequency S08 or Kinetis is more suitable for high-dynamic-response servo loops.
Direkomendasikan
Lighting Control and LED Driver Control
The MC908AP8CFBE integrates a 10-bit ADC and multiple timers that handle dimming and PWM generation for AC-DC LED lighting drivers. The 32 GPIO can drive solid-state relays and MOSFETs, while the 8-bit core runs dimming curves and ambient-light feedback algorithms. Compared to pure analog dimming, the MCU enables KNX-style or DMX-style digital control. A 5V LDO rail and a 100 nF decoupling capacitor per VDD pin will keep the timing jitter within spec.
Direkomendasikan
Industrial Sensor Interface Module
With its 10-bit ADC and 8 MHz CPU08 core, the MC908AP8CFBE reads analog sensor outputs, performs calibration math, and reports results over UART or SPI to a host PLC. The 8 KB Flash holds the calibration table and protocol stack for slow-rate sensor reporting. In a 44-LQFP form factor, the chip fits standard DIN-rail module footprints. Designers can add a small external EEPROM (e.g. 24C02) for parameter storage and rely on the internal oscillator to save BOM cost on simple modules.
Direkomendasikan
Automotive Body Electronics (Non-Safety)
Although not AEC-Q100 qualified per the verified data, the MC908AP8CFBE has historically been used in non-safety automotive body controls such as ambient lighting, seat-position memory, and HVAC panel drivers where 5V logic and small program size suffice. The 32 GPIO drive switches and LEDs while the 10-bit ADC monitors thermistors. For safety-critical systems, designers should select an AEC-Q100-qualified Kinetis or S12 MCU instead, since this part's automotive grade is unverified.
Direkomendasikan
Point-of-Sale Terminal and Peripherals
The HC08AP MCU drives keypad scanning, LCD control, and serial peripherals in compact point-of-sale devices. With 32 GPIO and 8 KB Flash, the MC908AP8CFBE fits small-footprint terminal boards at low unit cost. The 10-bit ADC monitors battery or supply rails, while the timers handle UART and IR-DA bit-banging. Engineers porting designs upward can drop-in the MC908AP16CFBE or MC908AP32CFBE for additional firmware capacity without board rework.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk MC908AP8CFBE — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | MC908AP16CFBE | MC908AP32CFBE | MC908AP64CFAER528 | MC908AP8CFBER |
|---|---|---|---|---|---|
| Package | 44-LQFP (10x10 mm) | 44-LQFP (10x10 mm) | 44-LQFP (10x10 mm) | 44-LQFP (10x10 mm) | 44-LQFP (10x10 mm) |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Program Memory | 8 KB Flash | 16 KB Flash | 32 KB Flash | 64 KB Flash | 8 KB Flash |
| CPU Clock | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| RAM Size | 1 KB | 1 KB | 2 KB | 2 KB | 1 KB |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| GPIO Count | 32 | 32 | 32 | 32 | 32 |
| Supply Voltage | 3.3V / 5V | 3.3V / 5V | 3.3V / 5V | 3.3V / 5V | 3.3V / 5V |
| Lifecycle | NRND | NRND | NRND | NRND | Active |
Diferensiator Kunci
- Smallest Flash in the HC08AP family at lowest price point (vsMC908AP32CFBE)
- Pin-compatible upgrade path within family (vsMC908AP64CFBER)
Catatan Desain
The MC908AP8CFBE is powered from a single 3.3V or 5V rail. Place a 100 nF decoupling capacitor close to each VDD pin and a single 4.7 uF bulk capacitor near the regulator. Keeping the analog VDD and digital VDD separated by ferrite beads reduces ADC noise coupled through the supply rail.
Ensure that VDD rises monotonically at power-up; MCU reset behavior assumes a clean supply ramp. A reset supervisor (e.g. MC33064) or simple RC network may be required if the upstream 5V regulator has soft-start or limited drive. Watch for back-powering through I/O pins when the MCU is off but external sensors remain powered.
The HC08AP's internal oscillator accuracy is typically +/- 5% to +/- 10% which is inadequate for reliable UART communication above 9600 baud. For UART, SPI, or CAN applications, switch to an external crystal or resonator on OSC1/OSC2 to maintain bus timing jitter within the peripheral tolerance. Estimated oscillator tolerance for asynchronous serial at 8 MHz: baud error of +/- 2.5% per 1% oscillator error is a common design rule.
Maintain continuous ground plane under the 44-LQFP footprint and route ADC inputs away from switching traces to minimize digital-to-analog crosstalk. The exposed thermal pad on the bottom of the LQFP should be soldered to a copper pour to meet the temperature-rise budget, even though this small MCU produces limited heat.
Informasi Konformitas
RoHS, lead-free, halogen-free and AEC-Q100 status were not stated verbatim in the verified web data; engineers should request the latest NXP material declaration or distributor compliance letter before volume placement.
