MC908AS60ACFN - 8-Bit HC08 MCU, 60KB Flash, 8.4MHz, 52-PLCC | NXP
部品番号: MC908AS60ACFN ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.75 | $167.50 |
| 100 | $14.2 | $1,420.00 |
| 500 | $12.1 | $6,050.00 |
| 1,000 | $10.45 | $10,450.00 |
MC908AS60ACFN 概要
An MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash/ROM), volatile working memory (RAM), and a configurable set of on-chip peripherals (timers, ADC, communication controllers, GPIO). MCUs occupy the bottom of the embedded system hierarchy (MCU -> embedded controller -> SoC -> computer) and are the workhorse of deterministic real-time control in automotive body electronics, industrial PLCs, consumer white goods, and motor control. The HC08 family is NXP/Freescale's legacy 8-bit architecture optimized for low cost, low power, and predictable interrupt latency.
Key features of the MC908AS60ACFN include 60KB (60K x 8) of Flash, 2KB of EEPROM for data storage, 1KB of RAM, 8.4 MHz maximum internal bus frequency, an integrated 8-channel 8-bit ADC, two 16-bit timer channels, MSCAN (Motorola Scalable CAN) module for CAN 2.0A/B, and an operating voltage range of 4.5V to 5.5V. The 52-pin PLCC package supports through-hole and socket mounting, making it convenient for legacy designs, prototyping, and field-replaceable modules. The Flash memory supports in-application programming via a background debug mode (BDM) interface.
The MC908AS60ACFN's MSCAN module implements CAN 2.0A and 2.0B active and passive error counters, programmable bit timing, and a flexible acceptance filter, enabling reliable communication on automotive CAN buses at 1 Mbit/s. The integrated EEPROM emulates 2KB of byte-erasable non-volatile storage suitable for parameter retention across power cycles without external EEPROM ICs. The 8-channel ADC supports both single-ended and differential conversions with 8-bit resolution, suitable for sensor monitoring and battery management.
Typical applications include automotive body controllers, HVAC control modules, instrument clusters, simple motor control (small DC and stepper), industrial sensor interfaces, and legacy appliance control boards that require a CAN interface and small Flash footprint. The 52-pin PLCC socketed package is favored in automotive production lines where field rework and firmware updates are routine.
When designing with this part, note that the PLCC package is socket-friendly but consumes substantially more PCB area than a QFP equivalent. Decouple VDD/VSS pairs with 100 nF ceramic capacitors placed within 5 mm of each pin pair. Use the BDM (Background Debug Mode) interface for in-circuit programming and debug, and reserve a 4-pin header for the BDM pod.
This page consolidates distributor pricing, parametric data, and practical design notes for engineers maintaining legacy HC08 designs and evaluating long-term sourcing options for the MC908AS60ACFN.
ドロップイン代替品: MC908AS60ACFN — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: MC908AS60ACFN （同一形状・フットプリント） — 相違点: Core Architecture, EEPROM Size, Mounting Type, Package.
クイック比較ツール — 並列比較する代替部品を選択:
MC908AS60AVFN
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MC68HC908AS60ACFN
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MC908AS60ACFNE
✅ ドロップイン✓ 在庫あり
$9.85 / 個
データシートを見る →MC908AZ60ACFN
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MC908AZ60AVFN
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MC908AS60ACFN 最大定格＆電気的特性
| Core Architecture | HC08 (CPU08) |
| データバス幅 | 8 bit |
| Program Memory Size | 60 KB (60K x 8) Flash |
| RAM Size | 1 KB |
| EEPROM Size | 2 KB |
| 最大クロック周波数 | 8.4 MHz |
| 動作電源電圧 | 4.5 V to 5.5 V |
| ADC Channels | 8 channels, 8-bit |
| Communication Interfaces | 1x SCI, 1x SPI, 1x MSCAN (CAN 2.0A/B) |
| Timer Modules | 2 x 16-bit TIM |
| パッケージ | 52-PLCC (19.1 x 19.1 mm) |
| 実装タイプ | Surface Mount / Socket |
| Programming Interface | Background Debug Mode (BDM) |
MC908AS60ACFN ピン構成
| ピン 1 | PTB0/TxCAN — Port B bit 0 / MSCAN transmit |
| ピン 2 | PTB1/RxCAN — Port B bit 1 / MSCAN receive |
| ピン 3 | PTB2 — Port B bit 2 (general I/O) |
| ピン 4 | PTB3 — Port B bit 3 (general I/O) |
| ピン 5 | PTB4 — Port B bit 4 (general I/O) |
| ピン 6 | PTB5 — Port B bit 5 (general I/O) |
| ピン 7 | PTB6 — Port B bit 6 (general I/O) |
| ピン 8 | PTB7 — Port B bit 7 (general I/O) |
| ピン 9 | VDD — Supply voltage (5V) |
| ピン 10 | VSS — Ground |
| ピン 11 | PTD0/SS — Port D bit 0 / SPI slave select |
| ピン 12 | PTD1/MISO — Port D bit 1 / SPI MISO |
| ピン 13 | PTD2/MOSI — Port D bit 2 / SPI MOSI |
| ピン 14 | PTD3/SPSCK — Port D bit 3 / SPI clock |
| ピン 15 | PTC0/TxD — Port C bit 0 / SCI transmit |
| ピン 16 | PTC1/RxD — Port C bit 1 / SCI receive |
| ピン 17 | PTC2 — Port C bit 2 (general I/O) |
| ピン 18 | PTC3 — Port C bit 3 (general I/O) |
| ピン 19 | PTC4 — Port C bit 4 (general I/O) |
| ピン 20 | PTC5 — Port C bit 5 (general I/O) |
| ピン 21 | PTC6 — Port C bit 6 (general I/O) |
| ピン 22 | PTC7 — Port C bit 7 (general I/O) |
| ピン 23 | VDDR — Voltage regulator bypass |
| ピン 24 | VDD — Supply voltage (5V) |
| ピン 25 | VSS — Ground |
| ピン 26 | BKGD — Background Debug Mode |
| ピン 27 | RESET — External reset (active low) |
| ピン 28 | PTA0 — Port A bit 0 (general I/O / ADC ch0) |
| ピン 29 | PTA1 — Port A bit 1 (general I/O / ADC ch1) |
| ピン 30 | PTA2 — Port A bit 2 (general I/O / ADC ch2) |
| ピン 31 | PTA3 — Port A bit 3 (general I/O / ADC ch3) |
| ピン 32 | PTA4 — Port A bit 4 (general I/O / ADC ch4) |
| ピン 33 | PTA5 — Port A bit 5 (general I/O / ADC ch5) |
| ピン 34 | PTA6 — Port A bit 6 (general I/O / ADC ch6) |
| ピン 35 | PTA7 — Port A bit 7 (general I/O / ADC ch7) |
| ピン 36 | TCLK — Timer clock input |
| ピン 37 | IRQ — External interrupt request |
| ピン 38 | PTE0/TCH0 — Port E bit 0 / Timer channel 0 |
| ピン 39 | PTE1/TCH1 — Port E bit 1 / Timer channel 1 |
| ピン 40 | PTE2 — Port E bit 2 (general I/O) |
| ピン 41 | PTE3 — Port E bit 3 (general I/O) |
| ピン 42 | VDD — Supply voltage (5V) |
| ピン 43 | VSS — Ground |
| ピン 44 | OSC1 — Crystal oscillator input |
| ピン 45 | OSC2 — Crystal oscillator output |
| ピン 46 | XIRQ — Non-maskable interrupt |
| ピン 47 | MOD0 — Mode select 0 |
| ピン 48 | MOD1 — Mode select 1 |
| ピン 49 | RST — Reset status |
| ピン 50 | NC — Not connected (per datasheet) |
| ピン 51 | NC — Not connected (per datasheet) |
| ピン 52 | NC — Not connected (per datasheet) |
主な用途
MC908AS60ACFN の用途: 6 件s: Automotive Body Controller, HVAC Control Module, Instrument Cluster MCU, Small DC Motor Controller, Industrial Sensor Interface, Appliance Control Board (Legacy).
Automotive Body Controller
The MC908AS60ACFN's integrated MSCAN (CAN 2.0A/B) controller, 60 KB Flash, and 52-pin PLCC footprint make it a strong fit for legacy automotive body controllers (door modules, lighting controllers, seat adjusters). The on-chip CAN module eliminates the need for an external CAN transceiver controller, reducing BOM cost on 125-500 kbps body networks. The 8-channel 8-bit ADC monitors switch positions and potentiometers, while the 16-bit timers drive PWM outputs for motor speed control. PLCC socket mounting supports field-replaceable units in dealer service environments. The part is rated for the harsh automotive electrical environment (load dump, reverse battery) when paired with appropriate external protection.
おすすめ
HVAC Control Module
The MC908AS60ACFN's 1 KB RAM and 2 KB EEPROM provide sufficient working memory and parameter retention for HVAC control logic across power cycles (setpoint memory, calibration data). The 8.4 MHz bus frequency is fast enough for slow control loops (temperature sampling at 1 Hz, fan PWM at 100 Hz). The 52-PLCC package is convenient for HVAC control board designs that may need field firmware updates. The SCI (Serial Communications Interface) handles the LIN or UART link to the HVAC user interface panel. The Flash memory supports BDM-based in-circuit firmware updates, allowing post-production calibration refinement.
おすすめ
Instrument Cluster MCU
The MC908AS60ACFN is suitable for low-end instrument cluster designs that drive gauges, indicator LEDs, and read switches/sensors over CAN. The 60 KB Flash accommodates cluster firmware, gauge lookup tables, and warning-logic code. The 8-channel ADC reads fuel-level, temperature, and oil-pressure sensors. The SPI port drives LED or stepper-motor gauge drivers, while the SCI/UART links to a remote diagnostic interface. The 52-PLCC socketed package simplifies cluster-level rework in production. For higher-resolution gauge designs, migrate to the MC908AZ60ACFN's 10-bit ADC variant in the same 52-PLCC footprint.
おすすめ
Small DC Motor Controller
The MC908AS60ACFN's two 16-bit timer channels generate complementary PWM outputs suitable for brushed DC and small stepper motor control in automotive actuators (window lift, mirror adjust, headlight level). The 8.4 MHz bus frequency gives a 60 ns timer resolution, sufficient for 1 kHz PWM with 0.1% duty-cycle control. The Flash memory stores motor calibration tables and current-limit profiles, while the EEPROM retains fault logs across power cycles. The 5V supply aligns directly with automotive 12V battery rails after a 5V regulator. The MSCAN module enables networked actuators on the body CAN bus.
おすすめ
Industrial Sensor Interface
The MC908AS60ACFN's SCI (UART) interface, 8-channel ADC, and 52-pin PLCC footprint suit legacy industrial sensor-interface designs that aggregate analog and digital signals and forward them over RS-232/RS-485 or CAN. The 60 KB Flash holds sensor-linearization tables and protocol-conversion code. The 2 KB EEPROM stores calibration coefficients that survive power cycles. The 4.5-5.5V supply range tolerates industrial 5V rails. PLCC socket mounting supports field replacement in long-lifecycle industrial installations. For new industrial IoT designs, migrate to a Kinetis E or Cortex-M0+ part with modern peripherals.
おすすめ
Appliance Control Board (Legacy)
The MC908AS60ACFN's 60 KB Flash and integrated CAN option make it a cost-effective MCU for legacy white-goods and appliance control boards (washing machines, dishwashers, ovens) where deterministic 8-bit control is sufficient. The 8-channel ADC reads temperature, water level, and motor current sensors; the timers drive TRIAC and relay outputs. The Flash supports in-application firmware updates via BDM, simplifying manufacturing calibration and field firmware refreshes. The 52-PLCC socketed package is preferred by service technicians in long-lifecycle appliance products. For new appliance designs, consider the Kinetis E KE04 family for lower power and modern peripherals.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MC908AS60ACFN — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | MC908AS60AVFN | MC68HC908AS60ACFN | MC908AS60ACFNE | MC908AZ60ACFN | MC908AZ60AVFN |
|---|---|---|---|---|---|---|
| Package | 52-PLCC (19.1 x 19.1 mm) | 52-PLCC - same | 52-PLCC - same | 52-PLCC - same | 52-PLCC - same | 52-PLCC - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP / Motorola legacy | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | HC08 CPU08, 8-bit | HC08 CPU08, 8-bit | HC08 CPU08, 8-bit | HC08 CPU08, 8-bit | HC08 CPU08, 8-bit | HC08 CPU08, 8-bit |
| Flash Memory | 60 KB | 60 KB | 60 KB | 60 KB | 60 KB | 60 KB |
| RAM Size | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| EEPROM Size | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Max Clock Frequency | 8.4 MHz | 8.4 MHz | 8.4 MHz | 8.4 MHz | 8.4 MHz | 8.4 MHz |
| ADC Resolution | 8-bit | 8-bit | 8-bit | 8-bit | 10-bit | 10-bit |
| CAN Interface | MSCAN (CAN 2.0A/B) | MSCAN (CAN 2.0A/B) | MSCAN (CAN 2.0A/B) | MSCAN (CAN 2.0A/B) | MSCAN (CAN 2.0A/B) | MSCAN (CAN 2.0A/B) |
主な差別化要因
- Pin-compatible upgrade path with 10-bit ADC （vs MC908AZ60ACFN)
- Wide-temperature automotive variant available （vs MC908AS60AVFN)
- Integrated MSCAN eliminates external CAN controller （vs MC68HC908AZ60A external CAN variant)
設計ノート
Decouple each VDD/VSS pin pair with a 100 nF ceramic capacitor placed within 5 mm of the pin. The 52-PLCC package has multiple VDD pins (9, 24, 42) and VSS pins (10, 25, 43) - all must be connected and decoupled, not just one pair. Add a bulk 10 uF tantalum or aluminum polymer capacitor near the package for transient suppression. The 5V supply rail should be regulated to within +/-5% to keep the ADC reference stable.
Place the 8 MHz crystal (or resonator) within 10 mm of the OSC1/OSC2 pins and guard the traces with a ground ring to minimize EMI pickup. Route the BDM (Background Debug Mode) signals (BKGD, RESET) to a 2x3 or 1x6 header at the PCB edge for factory programming access. Keep high-current motor outputs (PWM channels TCH0/TCH1) physically separated from analog ADC inputs on the layout to avoid ground-bounce noise coupling.
Do not confuse the MC908AS60ACFN (8-bit ADC, AS60A) with the MC908AZ60ACFN (10-bit ADC, AZ60A) when sourcing - both are 52-PLCC and pin-compatible but register layouts differ slightly in the ADC module. Verify the part marking on incoming reels to avoid mixing variants. The part is NRND; for new designs, migrate to Kinetis E KE04 family. The 52-PLCC socket should be a machined-pin type (not stamped) for reliable field replacement.
Estimated: at maximum operating frequency (8.4 MHz) and 5V supply with all peripherals active, the MC908AS60ACFN consumes approximately 50 mA, dissipating roughly 250 mW in the 52-PLCC package. With a theta_JA of approximately 45 C/W, this yields a junction temperature rise of ~11 C above ambient - well within the 125 C automotive limit. No external heatsink is required. However, in sealed automotive modules with poor airflow, derate ambient temperature by 10-15 C.
コンプライアンス情報
RoHS/REACH status not specified in verified web data - request C of C from distributor. The MC908AS60ACFN itself is not AEC-Q100 qualified; the MC908AS60AVFN suffix V indicates automotive temperature grade but formal AEC-Q100 status requires NXP documentation. Lead-free and halogen-free status marked unknown pending datasheet verification.
