MC908AB32VFUE - 8-Bit HC08 MCU 32KB Flash 8MHz | NXP
부품 번호: MC908AB32VFUE ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $45.5636 | $45.56 |
| 10 | $42 | $420.00 |
| 100 | $38.5 | $3,850.00 |
| 500 | $35 | $17,500.00 |
| 1,000 | $31.75 | $31,750.00 |
MC908AB32VFUE 개요
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), peripheral set (timers, ADC, communications), and I/O pins into one package. The HC08 family uses a CISC architecture with variable-length instructions, BCD arithmetic support, and a 16-bit stack pointer, positioning the MC908AB32VFUE as a general-purpose controller for deterministic real-time tasks rather than high-throughput digital signal work. Within the embedded taxonomy, this part is a micro-controller -> microcontroller -> integrated circuit -> semiconductor.
Key features that distinguish the MC908AB32VFUE include 32KB of in-system programmable Flash (allowing field firmware updates), 1KB of on-chip RAM, an 8-channel 8-bit ADC, multiple timers, SCI and SPI serial interfaces, and up to 51 general-purpose I/O pins. The 64-QFP package provides ample pinout for parallel bus peripherals and analog signal conditioning without forcing the designer to a fine-pitch BGA.
Architecturally, the part uses a Von Neumann memory map with the HC08 CPU core. Internal Flash can be erased sector-by-sector, supporting boot-loader patterns. The 8MHz bus rate provides 125ns minimum instruction cycle, adequate for slow-control loops and user-interface debouncing.
Typical applications include HVAC damper control, washing-machine motor sequencing, automotive instrument clusters, security keypads, and low-end point-of-sale terminals. The wide I/O count suits designs with many LED indicators, key matrices, or relay drivers.
A critical design consideration is that the HC08AB series is no longer in active production - design teams should verify NXP's longevity program status and plan a migration path to ColdFire V1 or Kinetis E series for new designs, while using this part only for legacy product maintenance or verified long-life programs.
This page consolidates distributor stock indicators, package-level drop-in equivalents from the same HC08 family, and practical design notes not aggregated in a single datasheet - giving engineers a one-stop replacement and migration reference.
드롭인 대체품: MC908AB32VFUE — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: MC908AB32VFUE (동일 폼 팩터 및 풋프린트) — 차이점: Package, Supply Voltage, RAM Size, Number of I/O, Program Memory Size.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
MC908AB32MFUE
✅ 드롭인✓ 재고 있음
가격 문의
데이터시트 보기 →MC908GZ32MFUE
✅ 드롭인✓ 재고 있음
$10.95 / 개
데이터시트 보기 →MC908GZ32VFUE
✅ 드롭인✓ 재고 있음
$5.15 / 개
데이터시트 보기 →MC908GR32ACFUE
✅ 드롭인✓ 재고 있음
$5.25 / 개
데이터시트 보기 →MC908AS60AVFUE
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MC908AB32VFUE 최대 정격 & 전기적 특성
| Core Architecture | HC08 (8-bit CISC) |
| Family | M68HC908AB |
| Program Memory (Flash) | 32 KB (32K x 8) |
| RAM Size | 1 KB (1K x 8) |
| 최대 클록 주파수 | 8 MHz |
| Bus Speed | 8 MHz internal |
| Number of I/O Pins | 51 |
| 공급 전압 | 3.3 V / 5 V dual-range |
| 패키지 | 64-pin QFP (14x14 mm) |
| 실장 유형 | Surface Mount |
| 동작 온도 | -40 C to +105 C (industrial) |
| Serial Interfaces | SCI, SPI |
| Tray Packaging | Yes (Tray) |
| Original Manufacturer | Freescale Semiconductor (now NXP) |
MC908AB32VFUE 핀 구성
| 핀 1 | IRQ — External interrupt request |
| 핀 2 | VDD — Supply voltage (3.3V/5V) |
| 핀 3 | VSS — Ground |
| 핀 4 | OSC1 — Crystal oscillator input |
| 핀 5 | OSC2 — Crystal oscillator output |
| 핀 6 | RST — Reset (active low) |
| 핀 7 | PTB0 — Port B bit 0 / ADC channel |
| 핀 8 | PTB1 — Port B bit 1 / ADC channel |
| 핀 9 | PTB2 — Port B bit 2 / ADC channel |
| 핀 10 | PTB3 — Port B bit 3 / ADC channel |
| 핀 11 | PTB4 — Port B bit 4 / ADC channel |
| 핀 12 | PTB5 — Port B bit 5 / ADC channel |
| 핀 13 | PTB6 — Port B bit 6 / ADC channel |
| 핀 14 | PTB7 — Port B bit 7 / ADC channel |
| 핀 15 | PTC0 — Port C bit 0 / TxD (SCI) |
| 핀 16 | PTC1 — Port C bit 1 / RxD (SCI) |
| 핀 17 | PTC2 — Port C bit 2 / SCLK (SPI) |
| 핀 18 | PTC3 — Port C bit 3 / MOSI (SPI) |
| 핀 19 | PTC4 — Port C bit 4 / MISO (SPI) |
| 핀 20 | PTC5 — Port C bit 5 / SS (SPI) |
| 핀 21 | PTC6 — Port C bit 6 |
| 핀 22 | PTC7 — Port C bit 7 |
| 핀 23 | PTD0 — Port D bit 0 / Timer channel |
| 핀 24 | PTD1 — Port D bit 1 / Timer channel |
| 핀 25 | PTD2 — Port D bit 2 / Timer channel |
| 핀 26 | PTD3 — Port D bit 3 / Timer channel |
| 핀 27 | PTD4 — Port D bit 4 / Timer channel |
| 핀 28 | PTD5 — Port D bit 5 / Timer channel |
| 핀 29 | PTD6 — Port D bit 6 / Timer channel |
| 핀 30 | PTD7 — Port D bit 7 / Timer channel |
| 핀 31 | PTE0 — Port E bit 0 |
| 핀 32 | PTE1 — Port E bit 1 |
| 핀 33 | PTE2 — Port E bit 2 |
| 핀 34 | PTE3 — Port E bit 3 |
| 핀 35 | PTE4 — Port E bit 4 |
| 핀 36 | PTE5 — Port E bit 5 |
| 핀 37 | PTE6 — Port E bit 6 |
| 핀 38 | PTE7 — Port E bit 7 |
| 핀 39 | PTF0 — Port F bit 0 |
| 핀 40 | PTF1 — Port F bit 1 |
| 핀 41 | PTF2 — Port F bit 2 |
| 핀 42 | PTF3 — Port F bit 3 |
| 핀 43 | PTF4 — Port F bit 4 |
| 핀 44 | PTF5 — Port F bit 5 |
| 핀 45 | PTF6 — Port F bit 6 |
| 핀 46 | PTF7 — Port F bit 7 |
| 핀 47 | PTG0 — Port G bit 0 |
| 핀 48 | PTG1 — Port G bit 1 |
| 핀 49 | PTG2 — Port G bit 2 |
| 핀 50 | PTG3 — Port G bit 3 |
| 핀 51 | PTG4 — Port G bit 4 |
| 핀 52 | PTG5 — Port G bit 5 |
| 핀 53 | PTG6 — Port G bit 6 |
| 핀 54 | PTG7 — Port G bit 7 |
| 핀 55 | VDD — Supply voltage |
| 핀 56 | VSS — Ground |
| 핀 57 | VDDAD — ADC supply voltage |
| 핀 58 | VREFH — ADC reference high |
| 핀 59 | VREFL — ADC reference low |
| 핀 60 | PTH0 — Port H bit 0 |
| 핀 61 | PTH1 — Port H bit 1 |
| 핀 62 | PTH2 — Port H bit 2 |
| 핀 63 | PTH3 — Port H bit 3 |
| 핀 64 | BKGD — Background debug mode |
일반적인 애플리케이션
MC908AB32VFUE 적합 용도: 6 애플리케이션s: White Goods Motor Control, Automotive Body Controllers, Security Keypad Panels, HVAC Damper Control, Low-End Point-of-Sale Terminals, Industrial User Interface Panels.
White Goods Motor Control
The MC908AB32VFUE fits washing-machine and dishwasher motor sequencing because its 8MHz HC08 core, 51 I/O pins, and 8-channel ADC provide enough throughput to drive triac-controlled universal motors and read current/voltage feedback. The 32KB Flash accommodates state-machine firmware for wash cycles, while 1KB RAM supports ramp tables and EEPROM emulation. Designers appreciate the 64-QFP package for hand-solder-friendly rework versus fine-pitch BGAs. Unlike ARM Cortex replacements, this part runs deterministic real-time loops without RTOS overhead, simplifying IEC 60730 safety certification for household appliances.
추천
Automotive Body Controllers
The MC908AB32VFUE serves automotive body modules (BCM) controlling lighting, wipers, and door locks because its 64-QFP footprint fits the existing BCM PCB layout and its industrial -40C to +105C temperature range covers cabin environments. The 51 I/O pins drive relay arrays and read switch matrices, while SCI/SPI interfaces connect to LIN transceivers for body network communication. AEC-Q100 qualification status should be confirmed at order entry - the standard VFUE suffix typically denotes industrial grade; automotive customers may require the CFUE (AEC-Q100) suffix instead.
추천
Security Keypad Panels
The MC908AB32VFUE powers commercial security keypads and access-control panels where its 51 I/O pins read 4x4 or 5x5 key matrices and drive LED indicators without external logic. The 32KB Flash stores PIN validation firmware and EEPROM emulation for credential storage. At 8MHz, debounce and scanning loops run well within real-time margins. The 64-QFP package supports both wave-soldered and reflow assembly, easing mixed-technology panel manufacturing. Designers migrating to ARM Cortex should note the Kinetis E footprint change requires PCB rework.
추천
HVAC Damper Control
The MC908AB32VFUE fits HVAC damper actuator controllers because its 8-channel ADC reads temperature sensors and potentiometer feedback while its timers drive PWM outputs for servo positioning. The 32KB Flash accommodates PID loop firmware and seasonal compensation tables. Industrial -40C to +105C operation handles unconditioned mechanical rooms. Designers using this part in building automation can leverage the 64-QFP footprint across multiple damper SKUs and share PCB layout, reducing NRE cost. Consider the CFUE (AEC-Q100) variant if the controller is co-located with automotive-grade transceivers.
추천
Low-End Point-of-Sale Terminals
The MC908AB32VFUE integrates the key elements of a low-end POS terminal - keypad scanning, LCD character display driving, magnetic-stripe reader interface, and serial receipt printer control - through its 51 I/O pins, SCI/SPI interfaces, and timers. At 8MHz, transaction firmware runs in real time without RTOS. The 32KB Flash stores price look-up tables and encryption keys; 1KB RAM handles transaction buffers. Designers should plan migration to Kinetis E with secure boot for new PCI-PTS certified terminals, since this NRND part lacks modern cryptographic acceleration.
추천
Industrial User Interface Panels
The MC908AB32VFUE drives industrial HMI panels with LED indicators, 7-segment displays, and rotary encoder inputs through its 51 I/O pins and timers. Its 64-QFP package supports a mix of through-hole and SMD peripherals on the same PCB, simplifying panel assembly. Flash-resident firmware handles menu navigation, setpoint entry, and alarm logging. Industrial -40C to +105C operation covers factory floor conditions. The HC08 CISC architecture simplifies certification audits because no RTOS is involved, reducing documentation overhead versus ARM Cortex alternatives that typically require FreeRTOS or Azure RTOS qualification.
추천
추천 제품 요약
엔지니어링 참조 데이터: MC908AB32VFUE — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | MC908AB32MFUE | MC908GZ32MFUE | MC908GZ32VFUE | MC908GR32ACFUE | MC908AS60AVFUE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | 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 | 64-QFP (14x14) - same |
| Program Memory (Flash) | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 60 KB (+88%) |
| RAM Size | 1 KB | 1 KB | 1.5 KB | 1.5 KB | 2 KB | 2 KB |
| Maximum Clock Speed | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| Supply Voltage | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V |
| Core Architecture | HC08 (8-bit CISC) | HC08 (8-bit CISC) | HC08 (8-bit CISC) | HC08 (8-bit CISC) | HC08 (8-bit CISC) | HC08 (8-bit CISC) |
주요 차별점
- Same QFP-64 footprint as multiple HC08 family members (vs MC908AS60AVFUE)
- Highest RAM among the listed alternatives (after GR/AS series) (vs MC908GZ32MFUE)
- Established second-source ecosystem (vs MC908GR32ACFUE)
설계 노트
The MC908AB32VFUE is NRND (Not Recommended for New Designs) - new product designs should select Kinetis E (MKE04Z) or ColdFire V1 (MCF51EM) replacements. For legacy maintenance or longevity-program products, verify continued supply via NXP's PLP. Do not start a new commercial product line on this part - allocation risk is high and price has risen materially compared to active Cortex-M0+ alternatives.
Route the 64-QFP package with 0.8 mm pitch using 0.4 mm-wide conductors and 0.2 mm spacing. Decouple each VDD pin with a 100 nF ceramic capacitor placed within 5 mm of the pin; add a bulk 10 uF tantalum or aluminum polymer near the package. The VREFH/VREFL pins must be bypassed with a low-ESR 100 nF capacitor and routed as a Kelvin pair back to the supply to avoid ADC noise injection.
Estimated: at 8 MHz clock and 5 V supply with all peripherals active, the HC08 core draws roughly 25-35 mA. Power dissipation stays below 200 mW even at worst case, so no heatsink is needed. Add a series ferrite bead on the analog VDDAD supply to isolate digital switching noise from the ADC reference - this is critical for accurate ADC readings on the 8 analog channels.
규정 준수 정보
Compliance status not explicitly provided in verified data. Industrial temperature grade (-40C to +105C) implied by the VFUE suffix per Freescale/NXP legacy naming convention. Verify RoHS/REACH at order entry.
