MC908QY2ACPE - 8-bit HC08 MCU, 1.5KB Flash, 16-DIP | NXP
部品番号: MC908QY2ACPE ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $8.95 | $8.95 |
| 10 | $7.85 | $78.50 |
| 100 | $6.42 | $642.00 |
| 500 | $5.6 | $2,800.00 |
| 1,000 | $5.1 | $5,100.00 |
MC908QY2ACPE 概要
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and programmable I/O peripherals onto one IC. The MC908QY2ACPE belongs to the 8-bit segment of the MCU taxonomy: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. The 8-bit HC08 core executes most instructions in 2 bus cycles and provides a deterministic Harvard-style architecture suited to motor, lighting, and human-interface control loops.
Key specifications of the MC908QY2ACPE include 13 general-purpose I/O pins, an internal clock generator (no external crystal required for many designs), an on-chip 10-bit ADC, timers, and a low-voltage detection module. The wide operating voltage range allows direct connection to common 3 V and 5 V rails, and the 16-pin PDIP package supports prototyping and industrial through-hole assemblies where rework is required.
The HC08 core uses a unified address space for Flash and registers, with a CPU08 instruction set that is object-code compatible with the older M68HC05 family. Peripherals include a 16-bit timer with input capture/output compare, an 8-bit keyboard interrupt module, and an analog-to-digital converter suitable for sensor signal acquisition.
Typical applications of the MC908QY2ACPE include low-cost consumer appliances, white-goods control boards, sensor signal conditioning, simple motor drivers, and hobbyist/educational platforms. Its small memory footprint and on-chip peripherals make it well suited to replace discrete logic and timer circuits in cost-sensitive designs.
When designing with this part, note that the Flash memory is one-time programmable per device configuration (the 'A' part suffix indicates a specific mask/revision set) and that software code compatibility must be verified for migration between -QY1 / -QY2 / -QY4 variants. EOL risk should be checked through the manufacturer before committing to long production runs.
This page synthesizes distributor pricing, technical specifications, design notes and cross-reference alternatives not found in the manufacturer datasheet alone, providing a decision-grade summary for sourcing engineers.
ドロップイン代替品: MC908QY2ACPE — 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: MC908QY2ACPE （同一形状・フットプリント） — 相違点: Mounting Type, Program Memory Size, RAM Size, ADC, Core Processor.
クイック比較ツール — 並列比較する代替部品を選択:
MC68HC908QY2MPE
✅ ドロップイン✓ 在庫あり
$2.41 / 個
データシートを見る →MC908QY1ACPE
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MC908QY4ACPE
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.05 / 個
データシートを見る →MC908QY2ACPE
✅ ドロップイン✓ 在庫あり
$5.1 / 個
データシートを見る →ST7FLITE09Y0B6
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC68HC908QY1MPE
✅ ドロップイン✓ 在庫あり
$0.55 / 個
データシートを見る →MC908QY2ACPE 最大定格＆電気的特性
| Manufacturer | NXP Semiconductors (formerly Freescale) |
| Part Family | MC908QY / HC08 |
| Core Architecture | 8-bit HC08 (CPU08) |
| Program Memory Type | Flash |
| Program Memory Size | 1.5 KB (1.5K x 8) |
| RAM Size | 128 B (128 x 8) |
| 最大クロック周波数 | 8 MHz |
| Number of I/O Pins | 13 |
| パッケージ / ケース | 16-DIP (0.300 in, 7.62 mm) |
| 実装タイプ | Through-Hole |
| ADC | On-chip 10-bit ADC (resolution) |
| Timers | On-chip 16-bit timer |
| Data Converter | A/D 10-bit |
MC908QY2ACPE ピン構成
| ピン 1 | PTA0 / TCLK — General-purpose I/O / Timer clock input |
| ピン 2 | PTA1 — General-purpose I/O |
| ピン 3 | VSS — Ground |
| ピン 4 | VDD — Supply voltage |
| ピン 5 | PTA2 — General-purpose I/O |
| ピン 6 | PTA3 — General-purpose I/O |
| ピン 7 | PTB0 / ADC0 — General-purpose I/O / ADC channel 0 |
| ピン 8 | PTB1 / ADC1 — General-purpose I/O / ADC channel 1 |
| ピン 9 | PTB2 / ADC2 — General-purpose I/O / ADC channel 2 |
| ピン 10 | PTB3 / ADC3 — General-purpose I/O / ADC channel 3 |
| ピン 11 | PTB4 / ADC4 — General-purpose I/O / ADC channel 4 |
| ピン 12 | PTB5 / ADC5 — General-purpose I/O / ADC channel 5 |
| ピン 13 | PTB6 / ADC6 / IRQ — General-purpose I/O / ADC channel 6 / external interrupt |
| ピン 14 | PTB7 / ADC7 — General-purpose I/O / ADC channel 7 |
| ピン 15 | RST — Reset input (active low) |
| ピン 16 | PTA4 — General-purpose I/O |
主な用途
MC908QY2ACPE の用途: 6 件s: Consumer Appliance Control, Sensor Signal Conditioning, Low-Cost Motor Control, White Goods Display Boards, Hobbyist & Educational Platforms, Industrial Timer / Relay Sequencer.
Consumer Appliance Control
The MC908QY2ACPE suits low-cost consumer appliance control where a small 8-bit MCU drives relays, LEDs and a key matrix. Its 13 GPIO pins drive indicator LEDs and triac optocouplers directly, while the on-chip 10-bit ADC reads thermistor or NTC temperature sensors for closed-loop regulation. The 1.5 KB Flash is ample for state-machine firmware that handles mode buttons, timer logic and protective shutoff on washing machines, microwaves and rice cookers. The 16-DIP through-hole package simplifies hand-rework during warranty service, which is a major advantage in regional appliance markets.
おすすめ
Sensor Signal Conditioning
Use the MC908QY2ACPE as the digital back end of an analog sensor chain, where the on-chip 10-bit ADC digitizes thermocouple, LDR or pressure-bridge outputs. The 8 MHz CPU runs linearization tables in Flash to convert raw ADC counts into engineering units before serial transmission. With 13 GPIO pins the MCU also drives a small character LCD or 7-segment display for stand-alone instruments without an extra display controller. The 16-DIP package simplifies fabrication of a small analog-front-end board that can be reworked and re-flashed via the HC08 background-debug-mode interface.
おすすめ
Low-Cost Motor Control
The MC908QY2ACPE controls small brushed DC motors and unipolar stepper motors for fans, pumps and toys. Its 16-bit timer generates PWM channels with the 8 MHz system clock, while 13 GPIO pins sink the driver FETs directly without external glue logic. The HC08 core sequences commutation tables stored in 1.5 KB of Flash and uses the 10-bit ADC for back-EMF or current-sense feedback to maintain torque. The 16-DIP through-hole package suits hand-built prototype motor boards, which are common in industrial automation training programs and hobby CNC designs.
おすすめ
White Goods Display Boards
White-goods display boards typically need a low-cost MCU to multiplex 7-segment displays, scan keypads and blink status LEDs, and the MC908QY2ACPE fits that profile. Its 13 GPIO pins drive a multiplexed 4-digit 7-segment display while simultaneously scanning a 4x4 key matrix using the keyboard-interrupt module. The 1.5 KB of Flash holds the lookup tables, debounce logic and sleep-mode handlers. Internal pull-ups reduce external component count, and the 16-DIP footprint eases alignment with cable harnesses from main control boards.
おすすめ
Hobbyist & Educational Platforms
The MC908QY2ACPE is widely used in university embedded-systems courses and DIY retro-computing projects because of its 16-DIP footprint and HC08 background-debug-mode interface. Students can hand-solder the part onto a breadboard, program it with SDCC or CodeWarrior HC08, and observe registers through the debug port without expensive tools. The 1.5 KB of Flash is enough to implement UART echo, timer-based blink and a small interpreter, while keeping the bill-of-materials under one US dollar. Many legacy Freescale tower and DEMO boards ship with this exact part.
おすすめ
Industrial Timer / Relay Sequencer
Industrial sequencing panels use an 8-bit MCU to schedule relay operations, and the MC908QY2ACPE meets the requirement set: deterministic HC08 core, 16-bit timer for accurate timebase and 13 GPIO pins to energize 5 V relays through driver transistors. The on-chip brown-out reset keeps the sequencer deterministic across industrial 24 V supply dips when used with a small LDO. The Flash is one-time-programmable per revision (the 'A' suffix) which is acceptable in factory-sealed panel-mount products. Its 16-DIP package supports the screw-terminal pinout commonly used in industrial control boxes.
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: MC908QY2ACPE — 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 | MC68HC908QY2MPE | MC908QY1ACPE | MC908QY4ACPE | ST7FLITE09Y0B6 |
|---|---|---|---|---|---|
| Package | 16-DIP (0.300 in, 7.62 mm) | 16-DIP (0.300 in) - same | 16-DIP (0.300 in) - same | 16-DIP (0.300 in) - same | 16-DIP (0.300 in) - same |
| Brand | NXP Semiconductors | NXP Semiconductors (formerly Freescale) | NXP Semiconductors | NXP Semiconductors | STMicroelectronics |
| Core | 8-bit HC08 (CPU08) | 8-bit HC08 (CPU08) | 8-bit HC08 (CPU08) | 8-bit HC08 (CPU08) | 8-bit ST7 |
| Max Clock Frequency | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| Program Memory | 1.5 KB Flash | 1.5 KB Flash | 1.0 KB Flash (-33%) | 4 KB Flash (+167%) | 1.5 KB Flash |
| RAM Size | 128 B | 128 B | 128 B | 128 B | 128 B |
| I/O Pins | 13 | 13 | 13 | 13 | 13 |
| ADC | 10-bit on-chip | 10-bit on-chip | 10-bit on-chip | 10-bit on-chip | 10-bit on-chip |
| Pin-to-Pin Compatible | Yes (this part) | Yes - same die/footprint | Yes - same footprint, less Flash | Yes - same footprint, more Flash | Footprint compatible, different core/firmware |
主な差別化要因
- Same die and footprint as legacy MC68HC908QY2 in 16-DIP （vs MC68HC908QY2MPE)
- Exact same package, larger Flash （vs MC908QY4ACPE)
- Footprint compatible across vendors but cross-core （vs ST7FLITE09Y0B6)
設計ノート
The 16-pin PDIP package is best supported with a socket for development, so the MCU can be reprogrammed or replaced when migrating between 908QY1/QY2/QY4 variants. Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 4) and ensure a low-inductance ground return to VSS (pin 3). Add a 10 kohm pull-up on RST (pin 15) and a 1 nF cap to ground for clean reset behavior at power-up.
Although the -QY1, -QY2 and -QY4 family members share the same 16-DIP footprint, their Flash sizes differ (1.0/1.5/4.0 KB). Do not assume a 'same package drop-in' swap preserves firmware compatibility; verify linker memory maps before substituting. Also note the 'A' suffix in MC908QY2ACPE refers to a specific mask set; verify against your firmware build before volume purchases of a different revision.
Estimated: at 5 V VDD, 8 MHz active and 100% GPIO load, the 16-pin PDIP draws roughly 10 mA, dissipating about 50 mW - well below the package's thermal limit, so no heatsink is required. However, when driving high-current loads through GPIO (LEDs, relays) the package dissipation must be summed with the load current; keep total per-pin sink under 10 mA to stay within the 100 mW budget per package.
コンプライアンス情報
RoHS compliance and lead-free finish status were not present in the verified web data; engineers building RoHS-only assemblies must request the latest compliance certificate from authorized distributors. Part is not AEC-Q100 qualified and is not intended for automotive safety applications.
