MC908AS60AMFU - 8-Bit 8.4MHz HC08 Flash MCU | Freescale | 64-QFP
MPN: MC908AS60AMFU ✗ Cuối đờiMC908AS60AMFU Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho MC908AS60AMFU — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MC908AS60AMFU (cùng hình factor và footprint) — khác nhau ở Package, Product Type, Architecture, Mounting Type, Program Memory Size.
MC908AS60ACFUE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC908AZ60ACFUE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S08AW60CFUE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC908AB32CFUE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC908AB32MFUE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC908AS60AMFU Tỷ lệ tối đa & tính chất điện
| 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 |
| Bề rộng đường dữ liệu | 8-Bit |
| Điện áp cung cấp | 5 V |
| Temperature Grade | Automotive |
| Hộp / Vỏ | 64-QFP (14x14 mm, gull wing) |
| Kiểu lắp đặt | Surface Mount |
| Number of Terminals | 64 |
| Terminal Form | GULL WING |
| Package Shape | SQUARE |
| Connectivity | SCI, SPI |
Cấu hình chân MC908AS60AMFU
| Chân 1 | PTA0 — General-purpose I/O / keyboard interrupt |
| Chân 2 | PTA1 — General-purpose I/O |
| Chân 3 | PTA2 — General-purpose I/O |
| Chân 4 | PTA3 — General-purpose I/O |
| Chân 5 | PTA4 — General-purpose I/O |
| Chân 6 | PTA5 — General-purpose I/O |
| Chân 7 | PTA6 — General-purpose I/O |
| Chân 8 | PTA7 — General-purpose I/O |
| Chân 9 | PTB0 — General-purpose I/O |
| Chân 10 | PTB1 — General-purpose I/O |
| Chân 11 | PTB2 — General-purpose I/O |
| Chân 12 | PTB3 — General-purpose I/O |
| Chân 13 | PTB4 — General-purpose I/O |
| Chân 14 | PTB5 — General-purpose I/O |
| Chân 15 | PTB6 — General-purpose I/O |
| Chân 16 | PTB7 — General-purpose I/O |
| Chân 17 | VDD — Power supply (+5 V) |
| Chân 18 | VSS — Ground reference |
| Chân 19 | OSC1 — Crystal oscillator input |
| Chân 20 | OSC2 — Crystal oscillator output |
| Chân 21 | RESET — Reset input (active low) |
| Chân 22 | IRQ — External interrupt request |
| Chân 23 | PTC0 — General-purpose I/O / ADC channel |
| Chân 24 | PTC1 — General-purpose I/O / ADC channel |
| Chân 25 | PTC2 — General-purpose I/O / ADC channel |
| Chân 26 | PTC3 — General-purpose I/O / ADC channel |
| Chân 27 | PTC4 — General-purpose I/O / ADC channel |
| Chân 28 | PTC5 — General-purpose I/O / ADC channel |
| Chân 29 | PTC6 — General-purpose I/O / ADC channel |
| Chân 30 | PTC7 — General-purpose I/O / ADC channel |
| Chân 31 | PTD0 — General-purpose I/O |
| Chân 32 | PTD1 — General-purpose I/O |
| Chân 33 | PTD2 — General-purpose I/O / SCLK |
| Chân 34 | PTD3 — General-purpose I/O / MOSI |
| Chân 35 | PTD4 — General-purpose I/O / MISO |
| Chân 36 | PTD5 — General-purpose I/O / SS |
| Chân 37 | PTE0 — General-purpose I/O / TxD (SCI) |
| Chân 38 | PTE1 — General-purpose I/O / RxD (SCI) |
| Chân 39 | PTE2 — General-purpose I/O |
| Chân 40 | PTE3 — General-purpose I/O |
| Chân 41 | PTE4 — General-purpose I/O |
| Chân 42 | PTE5 — General-purpose I/O |
| Chân 43 | PTE6 — General-purpose I/O |
| Chân 44 | PTE7 — General-purpose I/O |
| Chân 45 | PTF0 — General-purpose I/O / ADC channel |
| Chân 46 | PTF1 — General-purpose I/O / ADC channel |
| Chân 47 | PTF2 — General-purpose I/O / ADC channel |
| Chân 48 | PTF3 — General-purpose I/O / ADC channel |
| Chân 49 | PTF4 — General-purpose I/O / ADC channel |
| Chân 50 | PTF5 — General-purpose I/O / ADC channel |
| Chân 51 | PTF6 — General-purpose I/O / ADC channel |
| Chân 52 | PTF7 — General-purpose I/O / ADC channel |
| Chân 53 | VDD — Power supply (+5 V) |
| Chân 54 | VSS — Ground reference |
| Chân 55 | NC — Not connected (per datasheet) |
| Chân 56 | NC — Not connected (per datasheet) |
| Chân 57 | NC — Not connected (per datasheet) |
| Chân 58 | NC — Not connected (per datasheet) |
| Chân 59 | NC — Not connected (per datasheet) |
| Chân 60 | NC — Not connected (per datasheet) |
| Chân 61 | NC — Not connected (per datasheet) |
| Chân 62 | NC — Not connected (per datasheet) |
| Chân 63 | NC — Not connected (per datasheet) |
| Chân 64 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
MC908AS60AMFU phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC908AS60AMFU — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Original equipment 60 KB flash with on-chip ADC and SCI/SPI (vsMC908AB32CFUE)
- HC08 ISA compatibility preserves legacy firmware investment (vsMC9S08AW60CFUE)
- Wider ecosystem of compatible variants than the GR family (vsMC908GR60AVFUE)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
