MC908AS60ACFUE - 8-Bit 8.4MHz HC08 60KB Flash MCU | NXP
MPN: MC908AS60ACFUE ⚠ Waktu Beli TerakhirMC908AS60ACFUE Ringkasan
What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip built around an 8-bit data path, integrating a CPU, program memory (ROM/flash), RAM, peripherals (timers, ADC, communication ports), and general-purpose I/O onto one die. Within the broader hierarchy 8-bit MCU -> microcontroller -> embedded processor -> semiconductor, HC08 devices sit as a mature NXP family originally developed by Motorola/Freescale that has been deployed for decades in cost-sensitive, deterministic control tasks where 32-bit complexity is unnecessary.
Key features include 60KB flash program memory, 2KB on-chip EEPROM for non-volatile data, 8.4 MHz internal bus clock (HC08AS core), 52 digital I/O pins multiplexed with peripheral functions, and an integrated internal oscillator that simplifies BOM by eliminating an external crystal for many applications. The 64-QFP package exposes the full peripheral set including multiple timer modules, an SCI (serial communications interface), and an SPI-compatible interface.
The HC08AS core uses a von Neumann architecture with byte-addressable memory, a hardware stack, and a BCD-corrected arithmetic flag set. The 8.4 MHz bus clock delivers ~1.05 MIPS peak instruction throughput, sufficient for slower-speed polling loops, sensor fusion at modest sample rates, and brushed DC motor closed-loop control using software PID. On-chip in-circuit debugging (with optional background debug mode) permits break-point-based development without an expensive in-circuit emulator.
Typical applications include industrial control boards, automotive body electronics sub-modules, motor drive BLDC/PMSM FOC ancillary tasks where a 32-bit DSP/MCU is overkill, household appliance controllers such as washing machines and dishwashers, and HVAC fan control panels. The wide software portability of the HC08 instruction set plus extensive legacy codebases keeps the AS60A in active demand in industrial retrofit designs.
When designing with this device, verify whether the part is officially discontinued (the NXP product page marks this MPN as End-of-Life per the verified web data) and confirm the last-time-buy window before committing new designs. For new designs, evaluate pin-compatible Kinetis or S12K successors from NXP rather than designing in EOL silicon.
This page synthesizes distributor pricing, 64-QFP drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternatif penggantian untuk MC908AS60ACFUE — 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 MC908AS60ACFUE (sama faktor bentuk dan footprint) — berbeda di dalam Package, ADC, Core, Program Memory, RAM.
MC908AS60ACFU
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC908AZ60ACFUE
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC908AZ60AVFUE
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC908AB32CFUE
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC908AS60ACFUE Rating Maksimal & Karakteristik Listrik
| Core Architecture | HC08 (HC08AS - AZ series) |
| Lebar Bus Data | 8-bit |
| CPU Clock Speed | 8.4 MHz |
| Program Memory Size | 60 KB (60K x 8) Flash |
| RAM Size | 2 KB |
| EEPROM Size | 2 KB |
| Number of I/O Pins | 52 |
| Paket | 64-QFP (14x14 mm) |
| Tipe Mounting | Surface Mount |
| Oscillator Type | Internal |
| Peripherals | Timer, SCI, SPI, ADC |
| Programming Method | In-circuit flash programming |
Konfigurasi Pin MC908AS60ACFUE
| Pin produk 1 | IRQ — External interrupt request / TCLK |
| Pin produk 2 | OSC1 — Crystal/oscillator input (or NC if internal osc used) |
| Pin produk 3 | OSC2 — Crystal/oscillator output |
| Pin produk 4 | VSS — Ground reference |
| Pin produk 5 | VDD — Positive supply (5V or 3.3V depending on mask) |
| Pin produk 6 | RST — Reset input (active low) |
| Pin produk 7 | PTB7/TxD — Port B bit 7 / SCI transmit |
| Pin produk 8 | PTB6/RxD — Port B bit 6 / SCI receive |
| Pin produk 9 | PTB5/MISO — Port B bit 5 / SPI MISO |
| Pin produk 10 | PTB4/MOSI — Port B bit 4 / SPI MOSI |
| Pin produk 11 | PTB3/SPSCK — Port B bit 3 / SPI clock |
| Pin produk 12 | PTB2/SS — Port B bit 2 / SPI slave select |
| Pin produk 13 | VSS — Ground |
| Pin produk 14 | VDD — Positive supply |
| Pin produk 15 | PTC0 — Port C bit 0 |
| Pin produk 16 | PTC1 — Port C bit 1 |
| Pin produk 17 | PTC2 — Port C bit 2 |
| Pin produk 18 | PTC3 — Port C bit 3 |
| Pin produk 19 | PTC4 — Port C bit 4 |
| Pin produk 20 | PTC5 — Port C bit 5 |
| Pin produk 21 | PTC6 — Port C bit 6 |
| Pin produk 22 | PTC7 — Port C bit 7 |
| Pin produk 23 | PTD0 — Port D bit 0 |
| Pin produk 24 | PTD1 — Port D bit 1 |
| Pin produk 25 | PTD2 — Port D bit 2 |
| Pin produk 26 | PTD3 — Port D bit 3 |
| Pin produk 27 | PTD4 — Port D bit 4 |
| Pin produk 28 | PTD5 — Port D bit 5 |
| Pin produk 29 | PTD6 — Port D bit 6 |
| Pin produk 30 | PTD7 — Port D bit 7 |
| Pin produk 31 | PTE0 — Port E bit 0 |
| Pin produk 32 | PTE1 — Port E bit 1 |
| Pin produk 33 | PTE2 — Port E bit 2 |
| Pin produk 34 | PTE3 — Port E bit 3 |
| Pin produk 35 | PTE4 — Port E bit 4 |
| Pin produk 36 | PTE5 — Port E bit 5 |
| Pin produk 37 | PTE6 — Port E bit 6 |
| Pin produk 38 | PTE7 — Port E bit 7 |
| Pin produk 39 | PTF0 — Port F bit 0 |
| Pin produk 40 | PTF1 — Port F bit 1 |
| Pin produk 41 | PTF2 — Port F bit 2 |
| Pin produk 42 | PTF3 — Port F bit 3 |
| Pin produk 43 | PTF4 — Port F bit 4 |
| Pin produk 44 | PTF5 — Port F bit 5 |
| Pin produk 45 | PTF6 — Port F bit 6 |
| Pin produk 46 | PTF7 — Port F bit 7 |
| Pin produk 47 | PTG0 — Port G bit 0 |
| Pin produk 48 | PTG1 — Port G bit 1 |
| Pin produk 49 | PTG2 — Port G bit 2 |
| Pin produk 50 | PTG3 — Port G bit 3 |
| Pin produk 51 | PTG4 — Port G bit 4 |
| Pin produk 52 | PTG5 — Port G bit 5 |
| Pin produk 53 | PTG6 — Port G bit 6 |
| Pin produk 54 | PTG7 — Port G bit 7 |
| Pin produk 55 | PTH0 — Port H bit 0 |
| Pin produk 56 | PTH1 — Port H bit 1 |
| Pin produk 57 | PTH2 — Port H bit 2 / ADC reference |
| Pin produk 58 | PTH3 — Port H bit 3 |
| Pin produk 59 | VDDAD — ADC analog supply |
| Pin produk 60 | VREFH — ADC high reference |
| Pin produk 61 | VREFL — ADC low reference |
| Pin produk 62 | VSSAD — ADC analog ground |
| Pin produk 63 | BKGD — Background debug mode pin |
| Pin produk 64 | PTA0 — Port A bit 0 |
Aplikasi Umum
MC908AS60ACFUE cocok untuk 6 aplikasis: Industrial Control Boards, Household Appliance Controllers, Motor Drive Ancillary Tasks, HVAC Climate Controls, Automotive Body Electronics Sub-modules, Smart Sensor Aggregation Nodes.
Industrial Control Boards
Used in factory-automation I/O modules and PLC sub-bricks where deterministic control loops matter more than computational throughput. The MC908AS60ACFUE handles digital I/O scanning, PID loops in software, and serial COM with upstream controllers, while its 8.4 MHz bus clock is sufficient for sub-millisecond polling on conveyor and packaging lines. Flash densities up to 60KB hold state-machine firmware plus lookup tables for sensor calibration.
Direkomendasikan
Household Appliance Controllers
Found in washing machines, dishwashers, and microwave oven control panels where low cost and 8-bit throughput are sufficient. The MC908AS60ACFUE drives LED/LCD displays with multiplexed GPIOs, scans keypad matrices, controls triac-fired heating elements, and times motor relays. Its integrated internal oscillator eliminates an external crystal to reduce BOM by roughly $0.20. Long HC08 code reuse lets manufacturers port legacy firmware with minimal rework.
Direkomendasikan
Motor Drive Ancillary Tasks
Used for non-critical timing in BLDC and PMSM motor drives where the main control is a DSP, with the MC908AS60ACFUE handling user-interface, fault logging, and communication gateway duties. Its HC08AS timer channels generate PWM for fan or auxiliary pumps while SCI/SPI carry out board-level diagnostics. 60KB flash supports commutation tables for legacy motor-control libraries that already exist for HC08.
Direkomendasikan
HVAC Climate Controls
Drives simple thermostat and air-handler subsystems in residential and light-commercial HVAC equipment. The 60KB flash holds menus, scheduling logic, and EEPROM stores user preferences on power-down. Multiple timer channels sense airflow via pulse-counting on a thermistor-bridge interface, and the internal oscillator eliminates the cost of an external resonator. Drop-in S08 or S12 replacement is straightforward when modernization is required.
Direkomendasikan
Automotive Body Electronics Sub-modules
Found in legacy seat controllers, mirror adjusters, and interior lighting sub-modules where low-speed CAN or LIN is not required. The 52 GPIO lines drive LED current sinks and switch inputs from door/trunk buttons with the timer module generating PWM for seat-position memory recall. Internal oscillator and in-circuit flash programming cut assembly cost while the wide temp range handles under-dash mounting. For active designs choose S12K or S32K.
Direkomendasikan
Smart Sensor Aggregation Nodes
Used as low-cost aggregation nodes that pull together readings from 4-20 mA loops, thermistor bridges, and discrete switches over I2C/SPI and forward them via SCI to a host controller. The 8.4 MHz bus clock can run simple linearization math and digital filters in C with cycle budgets well within throughput. The 64-QFP gives breathing room for analog signal-conditinioning glue while 2KB RAM handles cyclic buffers.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk MC908AS60ACFUE — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | MC908AS60ACFU | MC908AZ60ACFUE | MC908AZ60AVFUE | MC908AB32CFUE |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 64-QFP (14x14) | 64-QFP (14x14) - same | 64-QFP (14x14) - same | 64-QFP (14x14) - same | 64-QFP (14x14) - same |
| Core Architecture | HC08AS | HC08AS | HC08AZ (with CAN) | HC08AZ low-voltage variant | HC08AB |
| Data Bus Width | 8-bit | 8-bit | 8-bit | 8-bit | 8-bit |
| CPU Clock Speed | 8.4 MHz | 8.4 MHz | 8.4 MHz | 8.4 MHz | 8.4 MHz |
| Flash Program Memory | 60 KB | 60 KB | 60 KB | 60 KB | 32 KB (-47%) |
| EEPROM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Number of I/O Pins | 52 | 52 | 52 | 52 | 32 |
| Lifecycle Status | Last Time Buy | Last Time Buy | Last Time Buy | Last Time Buy | Last Time Buy |
Diferensiator Kunci
- 60KB flash + 2KB EEPROM on 8-bit HC08AS core (vsMC908AB32CFUE)
- Industrial-grade temperature range (vsMC908AS60ACFU)
- Internal oscillator eliminates external crystal (vsMC908AZ60ACFUE)
Catatan Desain
The MC908AS60ACFUE is on NXP's last-time-buy list per the official product page; do not commit to this part for any new production design intended to ship beyond the LTB cut-off date. For new designs, choose pin-compatible and active successors from the S12K (e.g. MC9S12H256VFVE) or Kinetis (e.g. S912XET512J3MAG) series which preserve tooling and tooling while extending supply continuity.
Place the 0.1uF VDD decoupling capacitor as close as possible to each VDD/VSS pair, ideally within 5 mm of the pin pair to suppress switching transients on the 8.4 MHz bus. Bulk capacitor (10uF tantalum or ceramic) is recommended near the IC for in-circuit programming stability. Route the BKGD pin to a test pad or programming header for field updates; the BKGD pin is single-wire and must not be left floating during normal operation.
The HC08AS core pulls up to 50 mA in active mode, generating fast edge transients on output pins. Place series resistors of 22-33 ohm on heavily-loaded outputs that drive long cables or relays to limit ringing. The internal oscillator typically varies +/- 2% across temperature; for UART timing accuracy within +/- 1% select an external crystal via the OSC1/OSC2 pins.
The 64-QFP (14x14) package dissipates up to 0.6W of power at maximum operating conditions. Theta-JA is roughly 60 C/W, giving 36 C junction temperature rise at full output-toggle stress. No heatsink is needed at typical 8.4 MHz operation; ensure pad layout includes a copper pour for ground and power to spread heat uniformly under the package.
Informasi Konformitas
Compliance flags were not present in the verified web data; further confirmation from the NXP product or environmental quality page is required before committing the part to RoHS or REACH regulated designs.