MC908AP8ACBE - 8-Bit HC08 MCU 8KB Flash 8MHz 42-PDIP
Артикул: MC908AP8ACBE ✗ Снят с производства| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $12.85 | $12,85 |
| 10 | $11.2 | $112,00 |
| 100 | $9.75 | $975,00 |
| 500 | $8.4 | $4.200,00 |
| 1.000 | $7.15 | $7.150,00 |
MC908AP8ACBE Обзор
An 8-bit microcontroller is a single-chip computer built around an 8-bit data path, integrating CPU core, ROM/Flash program memory, RAM, and peripherals. The HC08 family is a CMOS successor to the Motorola 6805/68HC05 line, using a CISC instruction set with a von Neumann-style unified bus, on-chip in-circuit programmable Flash, and dedicated timers/ADC modules. Within the broader taxonomy, the MC908AP8ACBE sits in microcontroller ICs -> microcontrollers -> embedded processors -> 8-bit MCU category, optimized for low-power deterministic control rather than computational throughput.
Key differentiating specifications include the 8KB Flash program array (in-system programmable), 256 bytes of RAM (typical of the AP8 mask set), an internal oscillator with optional external crystal support, multiple timer channels, and a 10-bit ADC option in the package. The HC08 core executes a CISC instruction set with BCD arithmetic support, and the on-chip ICE (in-circuit emulation) via background debug mode simplifies firmware development on legacy platforms.
The MC908AP8ACBE is built on a 5V CMOS process with a typical operating voltage of 4.5V to 5.5V and is rated for the industrial temperature range of -40C to +85C. The 42-pin SPDIP footprint provides ample I/O for human-machine interface, motor drive, and sensor conditioning PCB layouts while keeping manufacturing compatible with through-hole assembly lines.
Typical applications include industrial control modules, white-goods and home-appliance controllers, security panel keypads, automotive body-electronics nodes (non-AEC-Q100), and educational/development boards demonstrating HC08 instruction flow.
Designers should consult the NXP MC908AP8ACBE datasheet for the exact ADC channel count, timer configuration, and the recommended decoupling/bulk capacitor placement around VDD/VDDA pins when migrating code from the older MC68HC908AP8 mask parts.
This page consolidates distributor pricing, real cross-reference alternatives in the same 42-PDIP footprint, and engineering design notes not present in the manufacturer datasheet summary.
Аналоги без доработки для MC908AP8ACBE — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с MC908AP8ACBE (тот же форм-фактор и посадочное место) — отличается по Program Memory Size, Mounting Type, Operating Temperature, Package, RAM Size.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
MC908AP8CBE
✅ Прямая замена✓ В наличии
$2.95 / шт.
Открыть даташит →MC68HC908AP8CFA
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
MC908AP16ACBE
✅ Прямая замена✓ В наличии
$5.4 / шт.
Открыть даташит →MC908AP32ACBE
✅ Прямая замена✓ В наличии
Уточнить цену
Открыть даташит →MC68HC908AP8MFAE
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
MC908AP8ACBE Максимальные параметры и электрические характеристики
| Core Architecture | HC08 (8-bit CISC) |
| Program Memory Type | Flash (in-circuit programmable) |
| Program Memory Size | 8 KB (8K x 8) |
| CPU Clock Speed | 8 MHz |
| Разрядность шины данных | 8-bit |
| Корпус | 42-SPDIP (Plastic DIP, 0.600 in / 15.24 mm) |
| Тип монтажа | Through-Hole |
| Operating Voltage | 4.5 V to 5.5 V (5 V typical) |
| Рабочая температура | -40 C to +85 C |
| Число выводов | 42 |
| Уровень MSL | Not applicable (through-hole package) |
Конфигурация выводов MC908AP8ACBE
| Контакт 1 | OSC1 — Crystal/oscillator input |
| Контакт 2 | OSC2 — Crystal/oscillator output |
| Контакт 3 | RST — External reset (active low) |
| Контакт 4 | IRQ — External interrupt request |
| Контакт 5 | VDD — Power supply (5V) |
| Контакт 6 | VSS — Ground |
| Контакт 7 | PTB0 — Port B bit 0 (GPIO) |
| Контакт 8 | PTB1 — Port B bit 1 (GPIO) |
| Контакт 9 | PTB2 — Port B bit 2 (GPIO) |
| Контакт 10 | PTB3 — Port B bit 3 (GPIO) |
| Контакт 11 | PTB4 — Port B bit 4 (GPIO) |
| Контакт 12 | PTB5 — Port B bit 5 (GPIO) |
| Контакт 13 | PTB6 — Port B bit 6 (GPIO) |
| Контакт 14 | PTB7 — Port B bit 7 (GPIO) |
| Контакт 15 | PTA0 — Port A bit 0 (GPIO/ADC) |
| Контакт 16 | PTA1 — Port A bit 1 (GPIO/ADC) |
| Контакт 17 | PTA2 — Port A bit 2 (GPIO/ADC) |
| Контакт 18 | PTA3 — Port A bit 3 (GPIO/ADC) |
| Контакт 19 | PTA4 — Port A bit 4 (GPIO/ADC) |
| Контакт 20 | PTA5 — Port A bit 5 (GPIO/ADC) |
| Контакт 21 | PTA6 — Port A bit 6 (GPIO/ADC) |
| Контакт 22 | PTA7 — Port A bit 7 (GPIO/ADC) |
| Контакт 23 | PTC0 — Port C bit 0 (GPIO/Timer) |
| Контакт 24 | PTC1 — Port C bit 1 (GPIO/Timer) |
| Контакт 25 | PTC2 — Port C bit 2 (GPIO/Timer) |
| Контакт 26 | PTC3 — Port C bit 3 (GPIO/Timer) |
| Контакт 27 | PTC4 — Port C bit 4 (GPIO/Timer) |
| Контакт 28 | PTC5 — Port C bit 5 (GPIO/Timer) |
| Контакт 29 | PTC6 — Port C bit 6 (GPIO) |
| Контакт 30 | PTC7 — Port C bit 7 (GPIO) |
| Контакт 31 | PTD0 — Port D bit 0 (GPIO/TxD) |
| Контакт 32 | PTD1 — Port D bit 1 (GPIO/RxD) |
| Контакт 33 | PTD2 — Port D bit 2 (GPIO) |
| Контакт 34 | PTD3 — Port D bit 3 (GPIO) |
| Контакт 35 | PTD4 — Port D bit 4 (GPIO/SPI) |
| Контакт 36 | PTD5 — Port D bit 5 (GPIO/SPI) |
| Контакт 37 | PTD6 — Port D bit 6 (GPIO/SPI) |
| Контакт 38 | PTD7 — Port D bit 7 (GPIO/SPI) |
| Контакт 39 | PTE0 — Port E bit 0 (GPIO/SPI/SCI) |
| Контакт 40 | PTE1 — Port E bit 1 (GPIO/SPI/SCI) |
| Контакт 41 | VSS — Ground (second) |
| Контакт 42 | VDD — Power supply (5V, second) |
Типичное применение
MC908AP8ACBE подходит для 6 применениеs: Industrial Control Modules, Home Appliance Controllers, Security Keypad Panels, Automotive Body Electronics (Non-Safety), Educational MCU Trainer Boards, Vending Machine Controllers.
Industrial Control Modules
The MC908AP8ACBE's 5V supply tolerance (4.5V-5.5V) and HC08 8-bit deterministic core suit PLC-style I/O modules where 5V industrial backplanes are common. With 8KB Flash and an 8MHz bus, it can scan digital inputs, debounce mechanical switches, and drive relay coils via MOSFETs without external logic. The 42-pin SPDIP package handles through-hole assembly lines for legacy equipment retrofits.
Рекомендуется
Home Appliance Controllers
White-goods boards (washing machines, dishwashers, microwave oven keypads) commonly use the MC908AP8ACBE because the HC08 BCD-mode arithmetic simplifies timer and clock-routine code. The 5V CMOS process tolerates the inductive switching noise of triac-driven motor loads when paired with adequate bulk capacitance. A 10-bit ADC option (within the HC908AP family) provides temperature sensor monitoring for thermostat loops.
Рекомендуется
Security Keypad Panels
Alarm keypads and access-control panels benefit from the MC908AP8ACBE's HC08 instruction set, which executes matrix-scan keypad decoding in single-cycle instructions, freeing CPU bandwidth for communication routines. The 42-pin footprint supplies enough GPIO for 4x4 key matrices plus LED indicators and a piezo buzzer drive. BCD arithmetic aids event-log timestamp calculations in non-RTC designs.
Рекомендуется
Automotive Body Electronics (Non-Safety)
Non-safety automotive subsystems such as seat controllers, interior lighting modules, and rear-window defroster timers historically used HC08 MCUs like the MC908AP8ACBE. Note: this part is NOT AEC-Q100 qualified; use only in non-safety automotive body modules or behind a higher-ASIL front-end. The 5V supply matches traditional 12V-bus regulated rails, simplifying discrete drive circuits.
Рекомендуется
Educational MCU Trainer Boards
Universities and training labs continue to use the MC908AP8ACBE to teach 8-bit CISC programming because its SPDIP package is easy to breadboard and the HC08 instruction set is well-documented. With 8KB Flash, students can complete full labs (LED control, ADC polling, UART echo, PWM motor drive) without external memory. The on-chip background-debug mode enables single-step firmware inspection during teaching sessions.
Рекомендуется
Vending Machine Controllers
Coin validators, bill acceptors, and vending dispenser boards run well on the MC908AP8ACBE thanks to its deterministic interrupt response and 5V tolerant I/O, which directly interfaces with 5V coin-mechanic sensors without level shifters. The HC08 BCD arithmetic speeds up vending price-table lookups. SPI capability (typical of HC908AP family) drives LED segment displays without external drivers.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для MC908AP8ACBE — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | MC908AP8CBE | MC68HC908AP8CFA | MC908AP16ACBE | MC908AP32ACBE | MC68HC908AP8MFAE |
|---|---|---|---|---|---|---|
| Package | 42-SPDIP | 42-SPDIP - same | 42-SPDIP - same | 42-SPDIP - same | 42-SPDIP - same | 42-SPDIP - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | HC08 8-bit CISC | HC08 8-bit CISC | HC08 8-bit CISC | HC08 8-bit CISC | HC08 8-bit CISC | HC08 8-bit CISC |
| Flash Memory | 8 KB | 8 KB | 8 KB (OTP) | 16 KB | 32 KB | 8 KB |
| CPU Clock | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| Operating Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Operating Temperature | -40 C to +85 C | 0 C to +70 C (commercial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Pin Count | 42 | 42 | 42 | 42 | 42 | 42 |
| Program Memory Type | Flash | Flash | ROM/OTP | Flash | Flash | ROM |
Ключевые отличия
- In-system programmable Flash with HC08 CISC core (против MC68HC908AP8CFA)
- Industrial -40C to +85C temperature grade (против MC908AP8CBE)
- Lower unit cost at 8KB density (против MC908AP16ACBE)
Заметки по проектированию
The MC908AP8ACBE requires a stable 5V supply (4.5V-5.5V) and benefits from a 100nF ceramic decoupling capacitor placed within 5mm of each VDD/VSS pair, plus a 10uF tantalum or aluminum bulk capacitor at the regulator output. Inductive loads such as relays or motors must use flyback diodes; the HC08 core latches digital supply spikes faster than the watchdog can reset the part. Estimated: at 8MHz CPU clock and full GPIO toggling, the core draws approximately 15-25 mA from VDD.
Place the 8MHz external crystal (if used) within 8mm of OSC1/OSC2 with short, symmetrical traces; both crystal leads should have a ground guard ring to suppress coupled noise. Reset pin (RST) needs a 10k pull-up plus 100nF to ground for clean power-on behavior. IRQ line should be routed away from PWM or high-current switching signals to avoid false interrupts in industrial control layouts.
Be careful with interrupt vector mapping when porting HC08 firmware - the AP8 family places vectors in the upper Flash region and a missing VECTOR.C statement can cause runaway code. Watchdog disable vs enable logic also differs from the older MC68HC05; unconfigured WDOG may reset the part during long EEPROM programming operations. Estimated: programming a sector of HC08 Flash takes roughly 10-30 ms; disable WDOG during erase to avoid mid-flash reset.
Информация о соответствии
Compliance fields marked unknown because the legacy HC08 datasheet does not explicitly state RoHS/REACH status; the part is NOT AEC-Q100 qualified and is therefore unsuitable for automotive safety applications
