MC908AP8CFAE - HC08 8-bit MCU 8KB Flash 48-LQFP | NXP
N.º da peça: MC908AP8CFAE ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $9.85 | $9,85 |
| 10 | $8.92 | $89,20 |
| 100 | $7.55 | $755,00 |
| 500 | $6.78 | $3.390,00 |
| 1.000 | $6.05 | $6.050,00 |
MC908AP8CFAE Visão geral
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for deterministic control tasks in cost-sensitive embedded systems. MCUs integrate a CPU core, non-volatile program memory (typically Flash), volatile RAM, peripherals such as ADC, timers, and communication interfaces (UART, SPI, I2C), into one package. The HC08 family from NXP (formerly Freescale) is a CISC architecture succeeding the popular HC05/HC11 lines, offering higher code density, a wider instruction set, and enhanced low-power modes. Within that family, the MC908AP sub-family targets automotive and industrial motor-control and instrumentation.
Key features of the MC908AP8CFAE include an 8 MHz maximum CPU bus clock, 8KB on-chip Flash with in-system programmability, 1KB on-chip RAM, a 10-bit resolution analog-to-digital converter (ADC) with multiple input channels, and enhanced low-power modes (STOP and WAIT) for battery-friendly operation. The device also integrates a timer interface module, a serial communications interface (SCI) and serial peripheral interface (SPI), and an external interrupt module with keyboard wake-up capability.
The architecture is built on NXP's mature HC08 CISC core using a 3.3V/5V dual-voltage design that simplifies interfacing to both 5V analog sensors and 3.3V digital logic. The wide operating voltage range and automotive-qualified process technology make it suitable for under-hood and industrial control environments where electrical noise and temperature extremes are common.
Typical applications include automotive body controllers, instrument cluster sub-systems, HVAC actuators, low-end motor control, sensor signal conditioning, and small industrial appliances. Designers choose this part when deterministic real-time control, long Flash retention (data retention over automotive life), and a stable, multi-sourced tool chain (CodeWarrior HC08, Cosmic, IAR) are required.
When designing with this MCU, ensure the brown-out reset voltage threshold is configured to match the minimum operating voltage (3V) of the system, and place decoupling capacitors close to each VDD/VSS pin pair. The LQFP-48 package provides adequate thermal dissipation for the HC08's modest power budget but still requires a small ground plane to keep digital switching noise away from the analog AVdd reference.
This page synthesizes distributor pricing, drop-in same-family NXP alternatives, cross-references to pin-compatible variants, and practical design notes not found in the standalone manufacturer datasheet.
Alternativas drop-in para MC908AP8CFAE — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MC908AP8CFAE (mesmo formato e footprint) — diferindo em ADC, Core, Supply Voltage, Family, Manufacturer.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MC908AP16CFAE
✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →MC908AP32CFAE
✅ Drop-In✓ Em estoque
$7.4 / unidade
Ver ficha técnica →MC908AP64CFAE
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MC908AP8CFBE
✅ Drop-In✓ Em estoque
$4.95 / unidade
Ver ficha técnica →MC908AP8CFAR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MC68HC908AP8CFB
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MC908AP8CFAE Classificações máximas e características elétricas
| Manufacturer | NXP Semiconductors |
| Product Type | 8-bit Microcontroller (MCU) |
| Core | HC08 CISC |
| CPU Bit Width | 8-bit |
| Maximum Bus Clock | 8 MHz |
| Program Memory | 8 KB Flash (8K x 8) |
| ADC | 10-bit, multi-channel |
| Tensão de alimentação | 3.0 V to 5.5 V (3.3V / 5V dual) |
| Temperatura de operação | -40 C to +85 C |
| Encapsulamento | 48-LQFP (7x7 mm) |
| Tipo de montagem | Surface Mount |
| Contagem de pinos | 48 |
| Peripherals | SCI (UART), SPI, TIM, KBI, ADC |
| Low-Power Modes | STOP, WAIT |
Configuração de pinos do MC908AP8CFAE
| Pino 1 | PTA0 — General-purpose I/O / ADC channel |
| Pino 2 | PTA1 — General-purpose I/O / ADC channel |
| Pino 3 | PTA2 — General-purpose I/O / ADC channel |
| Pino 4 | PTA3 — General-purpose I/O / ADC channel |
| Pino 5 | PTA4 — General-purpose I/O / ADC channel |
| Pino 6 | PTA5 — General-purpose I/O / ADC channel |
| Pino 7 | PTA6 — General-purpose I/O / ADC channel |
| Pino 8 | PTA7 — General-purpose I/O / ADC channel |
| Pino 9 | VDD — Power supply (3.0-5.5V) |
| Pino 10 | VSS — Ground |
| Pino 11 | PTB0 — General-purpose I/O |
| Pino 12 | PTB1 — General-purpose I/O |
| Pino 13 | PTB2 — General-purpose I/O |
| Pino 14 | PTB3 — General-purpose I/O |
| Pino 15 | PTB4 — General-purpose I/O |
| Pino 16 | PTB5 — General-purpose I/O |
| Pino 17 | PTB6 — General-purpose I/O |
| Pino 18 | PTB7 — General-purpose I/O |
| Pino 19 | PTC0 — General-purpose I/O / SPI SCK |
| Pino 20 | PTC1 — General-purpose I/O / SPI MOSI |
| Pino 21 | PTC2 — General-purpose I/O / SPI MISO |
| Pino 22 | PTC3 — General-purpose I/O / SPI SS |
| Pino 23 | PTC4 — General-purpose I/O / SCI TX |
| Pino 24 | PTC5 — General-purpose I/O / SCI RX |
| Pino 25 | PTC6 — General-purpose I/O |
| Pino 26 | PTC7 — General-purpose I/O |
| Pino 27 | PTD0 — General-purpose I/O / Timer channel |
| Pino 28 | PTD1 — General-purpose I/O / Timer channel |
| Pino 29 | PTD2 — General-purpose I/O / Timer channel |
| Pino 30 | PTD3 — General-purpose I/O / Timer channel |
| Pino 31 | PTD4 — General-purpose I/O |
| Pino 32 | PTD5 — General-purpose I/O |
| Pino 33 | PTD6 — General-purpose I/O |
| Pino 34 | PTD7 — General-purpose I/O |
| Pino 35 | PTE0 — General-purpose I/O / KBI |
| Pino 36 | PTE1 — General-purpose I/O / KBI |
| Pino 37 | PTE2 — General-purpose I/O / KBI |
| Pino 38 | PTE3 — General-purpose I/O / KBI |
| Pino 39 | PTE4 — General-purpose I/O / IRQ |
| Pino 40 | PTE5 — General-purpose I/O / RESET |
| Pino 41 | VDDA — Analog power supply |
| Pino 42 | VSSA — Analog ground |
| Pino 43 | AVREFH — ADC high reference voltage |
| Pino 44 | AVREFL — ADC low reference voltage |
| Pino 45 | OSC1 — Crystal oscillator input |
| Pino 46 | OSC2 — Crystal oscillator output |
| Pino 47 | VDD — Power supply (3.0-5.5V) |
| Pino 48 | VSS — Ground |
Aplicações típicas
MC908AP8CFAE é adequado para 7 aplicaçãos: Automotive Body Controller, HVAC Actuator Control, Instrument Cluster Sub-System, Low-End BLDC Motor Control, Industrial Sensor Signal Conditioning, Small Appliance Control Board, Battery-Powered Sensor Node.
Automotive Body Controller
The MC908AP8CFAE is a strong fit for low-cost automotive body-control modules thanks to its HC08 CISC core, 8KB Flash, 10-bit ADC, and 48-LQFP footprint that survives -40 C to +85 C under-hood environments. It controls lighting, wipers, and door-lock actuators where deterministic interrupt response and small code footprint matter more than raw MIPS. The integrated SCI (UART) and SPI blocks communicate with BCM master nodes over LIN or single-wire CAN bridges, while the 10-bit ADC reads switch and sensor inputs directly, eliminating external signal conditioning. Compared with a Cortex-M0 alternative, the AP8 provides proven long-term Flash retention (15+ years) that automotive Tier-1 suppliers require for safety-critical body electronics.
Recomendado
HVAC Actuator Control
In HVAC damper and valve actuators, the MC908AP8CFAE provides just enough Flash (8KB) and a 10-bit ADC for proportional control loops based on thermistor or potentiometer feedback. Its HC08 instruction set is well suited to PID-style algorithms and PWM generation through the timer interface module, while the 3.0-5.5V supply range lets the MCU run directly from rectified 5V rails in damper boards. Low-power STOP and WAIT modes reduce quiescent draw to microamps during idle, helping meet Energy Star standby targets for room HVAC units.
Recomendado
Instrument Cluster Sub-System
Inside automotive instrument clusters, the MC908AP8CFAE drives gauge stepper motors, indicator LEDs, and warning lamps via its timer and GPIO peripherals. The 10-bit ADC samples fuel-level and temperature sensor inputs, while the HC08 core manages dimming PWM and fault diagnostics. Its 48-LQFP footprint exposes enough I/O for multiplexed display driving and CAN/LIN gateway duties in mid-tier clusters where the main processor is dedicated to graphics rendering.
Recomendado
Low-End BLDC Motor Control
The MC908AP8CFAE can run sensorless or Hall-sensor BLDC commutation algorithms for small fans, pumps, and appliances, using its timer interface module to generate 6-step PWM with dead-band insertion. The 10-bit ADC reads back-EMF or current-sense signals for closed-loop control, while the HC08 CISC instructions handle lookup-table-based commutation efficiently. Wide 3.0-5.5V supply tolerance means the MCU can share the motor bridge supply without additional regulators.
Recomendado
Industrial Sensor Signal Conditioning
For 4-20 mA loop-powered industrial transmitters, the MC908AP8CFAE offers a 10-bit ADC adequate for typical sensor linearization and a low-power mode that keeps total loop current below 3.5 mA. The HC08 core performs cold-junction compensation for thermocouples or linearization for RTDs, while the SCI (UART) drives HART or Modbus output modulators. Wide -40 C to +85 C operation matches most process-industry enclosure requirements.
Recomendado
Small Appliance Control Board
Washing machines, dishwashers, and microwave ovens use MC908AP8CFAE-class MCUs to coordinate keypad input, LED/LCD feedback, and triac-fired heater or motor loads. The HC08's compact instruction encoding fits state-machine firmware into 8KB Flash, while the 10-bit ADC monitors line voltage and current for zero-cross detection. The 48-LQFP package provides sufficient I/O for appliance front-panel button matrices without requiring a port expander.
Recomendado
Battery-Powered Sensor Node
The MC908AP8CFAE's STOP and WAIT low-power modes (drawing only a few microamps) make it suitable for battery-powered sensor nodes transmitting over UART or SPI radios. Its 8KB Flash accommodates simple measurement and store-and-forward protocols, while the integrated 10-bit ADC removes the need for an external converter in low-data-rate IoT applications. The 48-LQFP package supports both hand-prototype builds and reflow production on small FR-4 boards.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MC908AP8CFAE — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MC908AP16CFAE | MC908AP32CFAE | MC908AP64CFAE | MC908AP8CFBE | MC908AP8CFAR | MC68HC908AP8CFB |
|---|---|---|---|---|---|---|---|
| Package | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | HC08 CISC 8-bit | HC08 CISC 8-bit | HC08 CISC 8-bit | HC08 CISC 8-bit | HC08 CISC 8-bit | HC08 CISC 8-bit | HC08 CISC 8-bit |
| Flash Memory | 8 KB | 16 KB | 32 KB | 64 KB | 8 KB | 8 KB | 8 KB |
| Max Bus Clock | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Supply Voltage | 3.0-5.5 V | 3.0-5.5 V | 3.0-5.5 V | 3.0-5.5 V | 3.0-5.5 V | 3.0-5.5 V | 3.0-5.5 V |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND | NRND |
Principais diferenciais
- Highest-density HC908AP variant (vs MC908AP8CFAE)
- Same Flash density, tape-and-reel packaging (vs MC908AP8CFAE)
- Legacy mask identifier for legacy tooling (vs MC908AP8CFAE)
Notas de projeto
Place 100 nF ceramic decoupling capacitors within 5 mm of every VDD/VSS pin pair and a single 10 uF bulk capacitor at the board supply entry point. The HC08 internal logic draws sharp current spikes during Flash programming; inadequate decoupling can cause programming failures and brown-out resets. AVdd should be tied to Vdd through a ferrite bead to keep digital switching noise out of the 10-bit ADC reference.
Route the crystal traces (OSC1/OSC2) as short, symmetric pairs and guard them with a ground pour to minimize EMI pickup. The 48-LQFP (7x7 mm) package has 0.5 mm pitch pins - use 0.2 mm traces with 0.1 mm spaces and a 4-mil solder mask expansion to ensure reliable reflow. Avoid routing analog ADC inputs parallel to high-speed digital lines; cross perpendicularly if necessary.
Do not assume the internal clock generator (ICG) is accurate enough for UART baud-rate critical applications without trimming. For SCI communications above 9600 bps, use an external crystal. Also, ensure the brown-out reset (BOR) is enabled in the configuration register - without it, operation below 3.0V may corrupt Flash without warning, causing hard-to-diagnose firmware lockups.
The 48-LQFP package has a typical theta-JA around 60-70 C/W. At maximum operating temperature (85 C ambient) and typical HC08 operating current (~15 mA at 8 MHz), junction rise is well under 5 C above ambient, so no heatsink is required. However, if the design places the MCU near a heat source (motor driver, power supply), verify with a thermal probe at full system load.
Informações de conformidade
Compliance fields not stated in the verified distributor snippets; consult the NXP product page or contact NXP for RoHS/REACH/AEC-Q100 status confirmation.