MC908AS60AMFU - 8-Bit 8.4MHz HC08 Flash MCU | Freescale | 64-QFP
N.º de pieza: MC908AS60AMFU ✗ Fin de vida| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $18.28 | $18,28 |
| 10 | $16.5 | $165,00 |
| 100 | $14.2 | $1.420,00 |
| 500 | $12.1 | $6.050,00 |
| 1.000 | $10.85 | $10.850,00 |
MC908AS60AMFU Descripción general
What is an HC08 microcontroller? The HC08 is Freescale/Motorola's 8-bit CISC microcontroller architecture that evolved from the earlier MC68HC05 line, adding a 16-bit index register, additional addressing modes, and a memory-mapped peripheral model. An HC08 Flash MCU integrates the CPU, Flash program memory, RAM, EEPROM/Flash-erase emulation, timers, ADC, serial communication interfaces, and I/O ports onto a single die - a System-on-Chip optimized for deterministic embedded control. Within the broader hierarchy, MC908AS60AMFU belongs to: microcontroller -> 8-bit MCU -> HC08 family -> HC908AS60A subgroup -> embedded computing.
Key features include 60 KB of in-application programmable flash (suitable for firmware upgrades), 2 KB of SRAM for stack/data, multiple 16-bit timers, a 10-channel 8-bit ADC for sensor interfacing, SCI (UART) and SPI serial interfaces, and a 5 V automotive-grade supply domain. The device supports background debug mode (BDM) for non-intrusive in-circuit development.
Technical depth: the HC908AS60A core implements an 8-bit accumulator-based ALU with stack pointer, index register H:X, and a status register. Program execution is fully static, allowing clock-stretching for low-power waits. The on-chip Flash uses a security feature that locks the debug port unless a password is supplied, protecting IP. The 8.4 MHz internal bus clock is derived from either an external crystal or an on-chip PLL/oscillator block.
Typical applications include automotive body controllers, instrument cluster drivers, HVAC control modules, white-goods motor control, industrial sensor hubs, and CAN/LIN gateway nodes (when paired with external transceivers). The wide temperature range and 5 V I/O tolerance make the MC908AS60AMFU well suited to harsh environments.
A key design consideration: at 5 V supply and high CPU utilization, the part draws noticeable quiescent current - budget for adequate PCB copper area if the application requires sustained high duty cycle at elevated ambient temperatures. The QFP-64 footprint also requires careful track fan-out to inner leads.
This page synthesizes distributor stock/pricing, drop-in compatible alternatives from the HC908 family, and design notes that complement (not duplicate) the manufacturer's datasheet.
Alternativas directas para MC908AS60AMFU — 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 MC908AS60AMFU (mismo factor de forma y huella) — difiere en Package, Product Type, Architecture, Mounting Type, Program Memory Size.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MC908AS60ACFUE
✅ Sustitución directa✓ En stock
$8.5 / unidad
Ver hoja de datos →MC908AZ60ACFUE
✅ Sustitución directa✓ En stock
Consulte el precio
Ver hoja de datos →MC9S08AW60CFUE
✅ Sustitución directa✓ En stock
$8.1029 / unidad
Ver hoja de datos →MC908AB32CFUE
✅ Sustitución directa✓ En stock
Consulte el precio
Ver hoja de datos →MC908AB32MFUE
✅ Sustitución directa✓ En stock
Consulte el precio
Ver hoja de datos →MC908AS60AMFU Valores máximos y características eléctricas
| Manufacturer | Freescale Semiconductor (NXP Semiconductors) |
| Series | HC08 |
| Core Processor | HC08 |
| Core Size | 8-Bit |
| Max Clock Frequency | 8.4 MHz |
| Program Memory Size | 60 KB (60K x 8) FLASH |
| RAM Size | 2 KB |
| Ancho del bus de datos | 8-Bit |
| Tensión de alimentación | 5 V |
| Temperature Grade | Automotive |
| Encapsulado / Carcasa | 64-QFP (14x14 mm, gull wing) |
| Tipo de montaje | Surface Mount |
| Number of Terminals | 64 |
| Terminal Form | GULL WING |
| Package Shape | SQUARE |
| Connectivity | SCI, SPI |
Configuración de pines de MC908AS60AMFU
| Pin 1 | PTA0 — General-purpose I/O / keyboard interrupt |
| Pin 2 | PTA1 — General-purpose I/O |
| Pin 3 | PTA2 — General-purpose I/O |
| Pin 4 | PTA3 — General-purpose I/O |
| Pin 5 | PTA4 — General-purpose I/O |
| Pin 6 | PTA5 — General-purpose I/O |
| Pin 7 | PTA6 — General-purpose I/O |
| Pin 8 | PTA7 — General-purpose I/O |
| Pin 9 | PTB0 — General-purpose I/O |
| Pin 10 | PTB1 — General-purpose I/O |
| Pin 11 | PTB2 — General-purpose I/O |
| Pin 12 | PTB3 — General-purpose I/O |
| Pin 13 | PTB4 — General-purpose I/O |
| Pin 14 | PTB5 — General-purpose I/O |
| Pin 15 | PTB6 — General-purpose I/O |
| Pin 16 | PTB7 — General-purpose I/O |
| Pin 17 | VDD — Power supply (+5 V) |
| Pin 18 | VSS — Ground reference |
| Pin 19 | OSC1 — Crystal oscillator input |
| Pin 20 | OSC2 — Crystal oscillator output |
| Pin 21 | RESET — Reset input (active low) |
| Pin 22 | IRQ — External interrupt request |
| Pin 23 | PTC0 — General-purpose I/O / ADC channel |
| Pin 24 | PTC1 — General-purpose I/O / ADC channel |
| Pin 25 | PTC2 — General-purpose I/O / ADC channel |
| Pin 26 | PTC3 — General-purpose I/O / ADC channel |
| Pin 27 | PTC4 — General-purpose I/O / ADC channel |
| Pin 28 | PTC5 — General-purpose I/O / ADC channel |
| Pin 29 | PTC6 — General-purpose I/O / ADC channel |
| Pin 30 | PTC7 — General-purpose I/O / ADC channel |
| Pin 31 | PTD0 — General-purpose I/O |
| Pin 32 | PTD1 — General-purpose I/O |
| Pin 33 | PTD2 — General-purpose I/O / SCLK |
| Pin 34 | PTD3 — General-purpose I/O / MOSI |
| Pin 35 | PTD4 — General-purpose I/O / MISO |
| Pin 36 | PTD5 — General-purpose I/O / SS |
| Pin 37 | PTE0 — General-purpose I/O / TxD (SCI) |
| Pin 38 | PTE1 — General-purpose I/O / RxD (SCI) |
| Pin 39 | PTE2 — General-purpose I/O |
| Pin 40 | PTE3 — General-purpose I/O |
| Pin 41 | PTE4 — General-purpose I/O |
| Pin 42 | PTE5 — General-purpose I/O |
| Pin 43 | PTE6 — General-purpose I/O |
| Pin 44 | PTE7 — General-purpose I/O |
| Pin 45 | PTF0 — General-purpose I/O / ADC channel |
| Pin 46 | PTF1 — General-purpose I/O / ADC channel |
| Pin 47 | PTF2 — General-purpose I/O / ADC channel |
| Pin 48 | PTF3 — General-purpose I/O / ADC channel |
| Pin 49 | PTF4 — General-purpose I/O / ADC channel |
| Pin 50 | PTF5 — General-purpose I/O / ADC channel |
| Pin 51 | PTF6 — General-purpose I/O / ADC channel |
| Pin 52 | PTF7 — General-purpose I/O / ADC channel |
| Pin 53 | VDD — Power supply (+5 V) |
| Pin 54 | VSS — Ground reference |
| Pin 55 | NC — Not connected (per datasheet) |
| Pin 56 | NC — Not connected (per datasheet) |
| Pin 57 | NC — Not connected (per datasheet) |
| Pin 58 | NC — Not connected (per datasheet) |
| Pin 59 | NC — Not connected (per datasheet) |
| Pin 60 | NC — Not connected (per datasheet) |
| Pin 61 | NC — Not connected (per datasheet) |
| Pin 62 | NC — Not connected (per datasheet) |
| Pin 63 | NC — Not connected (per datasheet) |
| Pin 64 | NC — Not connected (per datasheet) |
Aplicaciones típicas
MC908AS60AMFU es adecuado para 6 aplicacións: Automotive Body Control Module, Industrial Sensor Hub / Data Logger, HVAC Control Module, White Goods Motor Controller, CAN/LIN Gateway Node, Instrument Cluster Driver.
Automotive Body Control Module
The MC908AS60AMFU's 60 KB flash and 8-bit HC08 throughput fit perfectly into automotive body controllers that manage mirror adjust, lighting, wipers, and door locks. The 5 V supply, automotive temperature grade, and SCI/SPI interfaces allow direct communication with LIN slaves and switch panels. Its deterministic HC08 instruction set plus on-chip 10-channel 8-bit ADC reads mixed analog/digital switch signals reliably. Compared with newer S12/Kinetis parts, this MCU is cost-optimized and qualified for the -40C to +125C automotive grade. The QFP-64 footprint simplifies layout of through-hole style automotive harnesses when paired with standard 0.5 mm pitch boards. Use it where firmware is fixed and 60 KB is sufficient.
Recomendado
Industrial Sensor Hub / Data Logger
The MC908AS60AMFU integrates a 10-channel 8-bit ADC, two SCI (UART) channels and SPI, which together make a strong sensor-fan-in node for industrial monitoring. Connect 4-20 mA loop sensors through external op-amps, multiplex through the ADC, and stream results via SCI to a master PLC. The 60 KB flash stores lookup tables for sensor linearization. 8-bit resolution is acceptable for status-only signals (open/close, present/absent) and low-resolution process variables. The device runs from 5 V - matching legacy 24V-to-5V industrial rails without level shifters. Its static HC08 core lets you halt the clock during idle to reduce current, extending deployed-life in remote installations.
Recomendado
HVAC Control Module
HVAC climate controllers benefit from the MC908AS60AMFU's 5 V I/O tolerance, automotive temperature grade, and 8-bit deterministic response. Drive TRIAC-controlled blower motors via GPIO and zero-cross detector, switch relays through opto-isolated drivers, and read NTC thermistor voltages with the on-chip ADC. The HC08 instruction set executes in a fixed number of cycles, simplifying PID loop implementation in firmware. 60 KB flash accommodates lookup tables for blower speed curves and setpoint schedules; 2 KB RAM holds the active state machine. The QFP-64 footprint offers enough I/O for 7-8 buttons, a 7-segment display, and the serial link to a master BCM.
Recomendado
White Goods Motor Controller
The MC908AS60AMFU fits washing machines, dishwashers and other white-goods motor controllers where 8-bit throughput, robust 5 V I/O and a 60 KB code budget are sufficient. Drive a universal motor via TRIAC phase-angle control, sense tach pulses from an opto-interrupter on the ADC inputs, and drive a 7-segment LED display through the GPIO. The static HC08 core reduces EMI by allowing slow clock rates; the internal Flash supports in-application updates for software bug-fixes in the field. Automotive-grade temperature rating exceeds white-goods requirements, giving extra margin above cooker-adjacent enclosures. The QFP-64 footprint is well-suited to wave-soldered appliance control boards.
Recomendado
CAN/LIN Gateway Node
When paired with an external MC33388 LIN transceiver or MC2515 CAN controller, the MC908AS60AMFU functions as a low-cost gateway between automotive sub-networks. The MCU's SCI (UART) ports translate LIN traffic from switch panels into CAN frames for the BCM, offloading the central gateway in cost-sensitive architectures. 60 KB flash is sufficient for the gateway translation table plus diagnostics; 2 KB RAM handles message buffers. The HC08 interrupt latency is bounded, which is critical for time-triggered LIN frames. Automotive temperature grade and 5 V I/O match 12 V vehicle rails through standard regulators.
Recomendado
Instrument Cluster Driver
The MC908AS60AMFU drives stepper-motor gauges and 7-segment displays in entry-level automotive instrument clusters. Use the GPIO ports to control stepper coils, the timer for PWM-based gauge damping, and the SPI bus to drive a daisy-chained LED driver chain. The 8-bit core is fast enough for 100 Hz gauge updates and indicator-lamp multiplexing. Automotive-grade temperature rating ensures cluster operation in direct-sunlight dashboards. With 60 KB flash, the application software can store several driving-mode animations plus diagnostic fault codes. The QFP-64 footprint simplifies multi-layer PCB layout for compact cluster designs.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MC908AS60AMFU — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MC908AS60ACFUE | MC908AZ60ACFUE | MC9S08AW60CFUE | MC908AB32CFUE | MC908AB32MFUE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors (Freescale) | NXP Semiconductors (Freescale) - same brand | NXP Semiconductors (Freescale) - same brand | NXP Semiconductors - same brand | NXP Semiconductors - same brand | NXP Semiconductors - same brand |
| Package | 64-QFP (14x14) | 64-LQFP | 64-LQFP | 64-LQFP | 64-LQFP | 64-LQFP |
| Core Architecture | HC08 (8-bit) | HC08 (8-bit) - same | HC08 (8-bit) - same | S08 (8-bit) - firmware source-incompatible | HC08 (8-bit) - same | HC08 (8-bit) - same |
| Max Clock Frequency | 8.4 MHz | 8.4 MHz | 8.4 MHz | 20 MHz (S08 family) | 8.4 MHz | 8.4 MHz |
| Flash Program Memory | 60 KB | 60 KB | 60 KB | 60 KB | 32 KB (-47%) | 32 KB (-47%) |
| RAM Size | 2 KB | 2 KB | 2 KB | 2 KB | 1 KB | 1 KB |
| Supply Voltage | 5 V | 5 V | 5 V | 2.7-5.5 V (wider range) | 5 V | 5 V |
| Temperature Grade | Automotive (-40C to +125C) | Automotive | Automotive | Automotive | Automotive | Automotive |
| Lifecycle Status | NRND (Not Recommended for New Designs) | NRND | NRND | Active | NRND | NRND |
Diferenciadores clave
- Original equipment 60 KB flash with on-chip ADC and SCI/SPI (frente a MC908AB32CFUE)
- HC08 ISA compatibility preserves legacy firmware investment (frente a MC9S08AW60CFUE)
- Wider ecosystem of compatible variants than the GR family (frente a MC908GR60AVFUE)
Notas de diseño
The MC908AS60AMFU operates from a single 5 V supply; place a 100 nF ceramic decoupling capacitor directly between VDD (pin 17) and VSS (pin 18), and a second identical capacitor between the secondary VDD/VSS pair (pins 53/54). Add a bulk 10 uF tantalum or aluminum-polymer capacitor at the regulator output. Brownout detection is internal - ensure VDD ramps monotonically at power-up; an RC reset delay helps if the 5 V rail has slow rise.
The QFP-64 (14x14 mm, 0.5 mm lead pitch) requires careful fan-out. Use at least 4 inner PCB layers for the supply/ground/inner signal stitch, and place a continuous ground pour directly under the IC. Avoid routing high-speed signals (SPI MCLK, SCI baud > 115200) under the package. Solder paste stencil aperture should be slightly smaller than the land pad (typically 1:0.9) for QFP gull-wing leads to reduce solder bridges.
Do not assume the HC908AS60A silicon is identical to the older HC908AZ60A - register-level differences exist in the timer and ADC modules. Always rebuild the firmware against the AS60A header file set. Estimated: at 8.4 MHz CPU clock and 5 V active operation, the part draws 15-25 mA; at stop mode with RAM retention, current drops to <10 uA. The flash security byte, once programmed, blocks BDM read access - keep a backup if you need post-production debug.
Información de cumplimiento
RoHS compliant per Freescale/NXP product declaration (Pb-free QFP package). AEC-Q100: the part is automotive temperature grade but formal AEC-Q100 qualification status is not stated in the verified web data. Reach SVHC and halogen-free status unknown. Refer to NXP product compliance portal for up-to-date Reach/CMRT statements.
