MC908AP8CFAE - HC08 8-bit MCU 8KB Flash 48-LQFP | NXP
N.º de pieza: MC908AP8CFAE ✗ Fin de vida| Cant. | Precio unitario | 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 Descripción general
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 directas para MC908AP8CFAE — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MC908AP8CFAE (mismo factor de forma y huella) — difiere en ADC, Core, Supply Voltage, Family, Manufacturer.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MC908AP16CFAE
✅ Sustitución directa✓ En stock
Consulte el precio
Ver hoja de datos →MC908AP32CFAE
✅ Sustitución directa✓ En stock
$7.4 / unidad
Ver hoja de datos →MC908AP64CFAE
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MC908AP8CFBE
✅ Sustitución directa✓ En stock
$4.95 / unidad
Ver hoja de datos →MC908AP8CFAR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MC68HC908AP8CFB
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MC908AP8CFAE Valores máximos y características eléctricas
| 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 |
| Tensión de alimentación | 3.0 V to 5.5 V (3.3V / 5V dual) |
| Temperatura de funcionamiento | -40 C to +85 C |
| Encapsulado | 48-LQFP (7x7 mm) |
| Tipo de montaje | Surface Mount |
| Recuento de pines | 48 |
| Peripherals | SCI (UART), SPI, TIM, KBI, ADC |
| Low-Power Modes | STOP, WAIT |
Configuración de pines de MC908AP8CFAE
| Pin 1 | PTA0 — General-purpose I/O / ADC channel |
| Pin 2 | PTA1 — General-purpose I/O / ADC channel |
| Pin 3 | PTA2 — General-purpose I/O / ADC channel |
| Pin 4 | PTA3 — General-purpose I/O / ADC channel |
| Pin 5 | PTA4 — General-purpose I/O / ADC channel |
| Pin 6 | PTA5 — General-purpose I/O / ADC channel |
| Pin 7 | PTA6 — General-purpose I/O / ADC channel |
| Pin 8 | PTA7 — General-purpose I/O / ADC channel |
| Pin 9 | VDD — Power supply (3.0-5.5V) |
| Pin 10 | VSS — Ground |
| Pin 11 | PTB0 — General-purpose I/O |
| Pin 12 | PTB1 — General-purpose I/O |
| Pin 13 | PTB2 — General-purpose I/O |
| Pin 14 | PTB3 — General-purpose I/O |
| Pin 15 | PTB4 — General-purpose I/O |
| Pin 16 | PTB5 — General-purpose I/O |
| Pin 17 | PTB6 — General-purpose I/O |
| Pin 18 | PTB7 — General-purpose I/O |
| Pin 19 | PTC0 — General-purpose I/O / SPI SCK |
| Pin 20 | PTC1 — General-purpose I/O / SPI MOSI |
| Pin 21 | PTC2 — General-purpose I/O / SPI MISO |
| Pin 22 | PTC3 — General-purpose I/O / SPI SS |
| Pin 23 | PTC4 — General-purpose I/O / SCI TX |
| Pin 24 | PTC5 — General-purpose I/O / SCI RX |
| Pin 25 | PTC6 — General-purpose I/O |
| Pin 26 | PTC7 — General-purpose I/O |
| Pin 27 | PTD0 — General-purpose I/O / Timer channel |
| Pin 28 | PTD1 — General-purpose I/O / Timer channel |
| Pin 29 | PTD2 — General-purpose I/O / Timer channel |
| Pin 30 | PTD3 — General-purpose I/O / Timer channel |
| Pin 31 | PTD4 — General-purpose I/O |
| Pin 32 | PTD5 — General-purpose I/O |
| Pin 33 | PTD6 — General-purpose I/O |
| Pin 34 | PTD7 — General-purpose I/O |
| Pin 35 | PTE0 — General-purpose I/O / KBI |
| Pin 36 | PTE1 — General-purpose I/O / KBI |
| Pin 37 | PTE2 — General-purpose I/O / KBI |
| Pin 38 | PTE3 — General-purpose I/O / KBI |
| Pin 39 | PTE4 — General-purpose I/O / IRQ |
| Pin 40 | PTE5 — General-purpose I/O / RESET |
| Pin 41 | VDDA — Analog power supply |
| Pin 42 | VSSA — Analog ground |
| Pin 43 | AVREFH — ADC high reference voltage |
| Pin 44 | AVREFL — ADC low reference voltage |
| Pin 45 | OSC1 — Crystal oscillator input |
| Pin 46 | OSC2 — Crystal oscillator output |
| Pin 47 | VDD — Power supply (3.0-5.5V) |
| Pin 48 | VSS — Ground |
Aplicaciones típicas
MC908AP8CFAE es adecuado para 7 aplicacións: 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
Resumen de productos recomendados
Datos de referencia de ingeniería para MC908AP8CFAE — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | 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 |
Diferenciadores clave
- Highest-density HC908AP variant (frente a MC908AP8CFAE)
- Same Flash density, tape-and-reel packaging (frente a MC908AP8CFAE)
- Legacy mask identifier for legacy tooling (frente a MC908AP8CFAE)
Notas de diseño
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.
Información de cumplimiento
Compliance fields not stated in the verified distributor snippets; consult the NXP product page or contact NXP for RoHS/REACH/AEC-Q100 status confirmation.