MC912DG128ACPVE - 16-bit HC12 MCU 8MHz 128KB Flash | NXP
部品番号: MC912DG128ACPVE ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MC912DG128ACPVE 概要
A microcontroller unit (MCU) integrates a processor core, memory, and peripherals on a single chip, forming the highest-volume category of embedded semiconductor. The HC12 family descends from the widely used Motorola M68HC11 architecture; the CPU12 core is upward compatible with the M68HC11 instruction set, which means legacy 68HC11 code can be migrated with minimal rework while gaining 16-bit arithmetic throughput and expanded addressing.
Key features of the MC912DG128ACPVE include 128KB (128K x 8) of flash program memory for large embedded applications, 8KB of internal RAM, and 2KB of on-chip EEPROM for non-volatile parameter storage. Two independent 8-channel 10-bit analog-to-digital converters provide up to 16 analog inputs, a key differentiator for sensor-heavy designs. The device operates from a 5V supply at up to 8MHz bus speed over the industrial temperature range.
Architecturally, the part belongs to the Freescale/NXP HC912D processor series (16-bit MCU with SGF configuration per distributor listings). The CPU12 CISC core executes the M68HC11-compatible instruction set with enhanced indexed addressing modes, simplifying porting of mature 68HC11 firmware used across automotive and industrial platforms. The flash memory supports in-system programming, and the rich peripheral set covers serial communication, timing, and analog acquisition without external ASICs.
Typical applications include automotive body and powertrain control modules, industrial automation controllers, motor drive boards, and legacy 68HC11 system upgrades where code compatibility and 128KB of flash headroom justify a 16-bit migration.
A key design consideration is lifecycle status: this part is End of Life (EOL) per the NXP product page, so new designs should evaluate last-time-buy quantities or the DT128 flash/RAM-variant family members before committing. Verify flash erase/write endurance limits against your application update rate.
This page synthesizes distributor inventory data, drop-in family alternatives, and EOL migration guidance not found in the manufacturer datasheet.
ドロップイン代替品: MC912DG128ACPVE — 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: MC912DG128ACPVE （同一形状・フットプリント） — 相違点: Package, Supply Voltage, ADC, Core Architecture, Mounting Type.
クイック比較ツール — 並列比較する代替部品を選択:
MC912DG128AMPVE
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC912DG128AVPVE
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC912DT128ACPVE
✅ ドロップイン✓ 在庫あり
$43.76 / 個
データシートを見る →MC912DT128AMPVE
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC912DT128AVPVE
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC912DG128CCPVE
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC912DG128ACPVE 最大定格＆電気的特性
| Core Processor | CPU12 (HC12), CISC |
| Core Size | 16-bit |
| 最大クロック周波数 | 8 MHz |
| Program Memory Size | 128 KB (128K x 8) FLASH |
| RAM Size | 8 KB |
| EEPROM Size | 2 KB |
| ADC Resolution | 10-bit |
| ADC Channels | 2 x 8-channel (16 total inputs) |
| General Purpose I/O | 69 |
| 電源電圧 | 5 V |
| Instruction Set Compatibility | Upward compatible with M68HC11 |
| Processor Series | HC912D |
| パッケージ | 112-LQFP (20x20 mm), square, gull-wing |
| 実装タイプ | Surface Mount |
| Temperature Grade | Industrial |
| Terminal Form | Gull Wing |
| Number of Terminals | 112 |
| ライフサイクル状態 | End of Life (EOL) per NXP |
MC912DG128ACPVE 112-lqfp (20x20 mm), square, gull-wing ピン配置ガイド
MC912DG128ACPVE (112-lqfp (20x20 mm), square, gull-wing パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: MC912DG128ACPVE.
詳細は データシート をご参照ください。
主な用途
MC912DG128ACPVE の用途: 6 件s: Automotive Body Control Modules, Industrial Automation Controllers, Motor Control and Drive Boards, Legacy 68HC11 System Upgrades, Instrumentation and Data Loggers, Building and Access Control Systems.
Automotive Body Control Modules
The MC912DG128ACPVE fits automotive body-control workloads because its 16-bit CPU12 core at 8MHz delivers deterministic CISC execution for relay, lamp, and wiper sequencing, while 69 GPIO lines directly drive the switch and actuator matrix of a body controller without external I/O expanders. Two independent 8-channel 10-bit ADCs digitize up to 16 analog inputs such as battery sense, temperature, and potentiometer feedback, which is more analog density than most same-era 8-bit MCUs offered. Its 128KB flash holds protocol stacks and diagnostic firmware with headroom for OTA-era growth, and the 2KB EEPROM preserves calibration data across power cycles. Since the CPU12 core is upward compatible with the M68HC11 instruction set, suppliers maintaining HC11-era body modules can migrate with modest firmware changes while retaining a 5V, industrial-qualified electrical interface.
おすすめ
Industrial Automation Controllers
In factory automation nodes such as conveyor sequencers, valve manifolds, and small PLC auxiliaries, the MC912DG128ACPVE provides a 5V noise-tolerant I/O system with 69 GPIO that interfaces natively to 24V-buffered optocoupler inputs and relay outputs without level-shifting stages. The dual 8-channel 10-bit ADCs sample analog sensors - pressure transducers, potentiometer position feedback, current-sense signals - at resolution adequate for monitoring-grade control loops. The 8MHz CPU12 core executes ladder-logic interpreters and Modus-style serial protocols with deterministic CISC timing, and 128KB flash accommodates protocol stacks plus configuration tables, while the 2KB EEPROM stores retentive setpoints across power interruptions. Because the core is M68HC11 upward compatible, integrators with decades of HC11 control code can reuse proven firmware logic, reducing validation effort in safety-conscious industrial retrofits.
おすすめ
Motor Control and Drive Boards
For DC and small BLDC drive boards, the MC912DG128ACPVE pairs its 16-bit CPU12 timing resources with the dual 8-channel 10-bit ADC banks to implement current and position feedback loops, digitizing shunt or hall signals on up to 16 inputs. The 69 GPIO lines gate six MOSFET bridges plus fault and enable logic through external gate drivers, and the 5V rail simplifies interfacing with classic gate-driver ICs. The 8MHz bus provides sufficient headroom for PI current loops at low PWM frequencies typical of legacy drive designs, while 128KB flash stores fieldbus protocol firmware and 2KB EEPROM retains gain calibration. Because the part shares its datasheet across the DG128/DT128 family, drive designers can qualify one footprint against multiple speed and temperature grades, simplifying sourcing for both indoor and enclosed-drive environments.
おすすめ
Legacy 68HC11 System Upgrades
The MC912DG128ACPVE is the canonical migration target for M68HC11 designs that have outgrown 8-bit memory limits: the CPU12 core is upward compatible with the M68HC11 instruction set, so most assembly and C firmware ports with minimal rewrites, per the Freescale family datasheet. The jump from HC11-era 2-12KB of memory to 128KB flash plus 8KB RAM allows added features - logging, diagnostics, protocol extensions - without external memory expansion. The 5V operating rail preserves compatibility with existing HC11 peripheral buffers and sensor conditioning, and the industrial temperature grade suits the plant-floor environments where HC11 systems persist. Two 8-channel 10-bit ADCs often let designers delete external ADC chips from the legacy BOM, consolidating analog acquisition onto the MCU and reducing component count in sustaining designs.
おすすめ
Instrumentation and Data Loggers
Bench and field instrumentation benefit from the MC912DG128ACPVE's dual 8-channel 10-bit ADCs, which give up to 16 multiplexed analog inputs for multi-point temperature, pressure, and voltage logging at monitoring-grade resolution. The 16-bit CPU12 at 8MHz sustains periodic sampling loops plus serial reporting with deterministic latency, while 128KB flash holds both application firmware and logged parameter tables, and 2KB EEPROM safely stores calibration constants that must survive power loss. The 69 GPIO lines drive keypads, indicator LEDs, and printer or display interfaces common in industrial instruments, all at robust 5V logic levels. Because the architecture is familiar from the M68HC11 generation, instrument service organizations find firmware and debugging toolchains readily available, an advantage over migrating instruments to unrelated 32-bit platforms.
おすすめ
Building and Access Control Systems
Door controllers, HVAC zone panels, and pump interlock panels use the MC912DG128ACPVE's combination of 69 GPIO and dual 10-bit ADC banks to monitor card-reader inputs, door contacts, and occupancy sensors while driving lock relays and damper actuators directly through driver transistors. The 5V logic environment matches the optocoupled input conventions of commercial security hardware, and the industrial temperature rating tolerates unconditioned equipment rooms. The 8MHz CPU12 handles access-list matching and event queuing in deterministic time, 128KB flash stores user tables and audit firmware with room to spare, and the 2KB EEPROM retains configuration and event cursors across outages. Its M68HC11-compatible core means long-life installed codebases remain maintainable, which matters where certification revalidation of control firmware would otherwise be costly.
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: MC912DG128ACPVE — 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 | MC912DG128AMPVE | MC912DG128AVPVE | MC912DT128ACPVE |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 112-LQFP (20x20 mm) | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same |
| Core / Architecture | CPU12 (HC12), 16-bit CISC | CPU12, 16-bit CISC | CPU12, 16-bit CISC | CPU12, 16-bit CISC |
| Max Clock Frequency | 8 MHz | Per M grade - verify datasheet | Per V grade - verify datasheet | 8 MHz class (verify grade) |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB class (memory split differs) |
| ADC | 2 x 8-ch, 10-bit | 2 x 8-ch, 10-bit | 2 x 8-ch, 10-bit | 2 x 8-ch, 10-bit |
| Temperature Grade | Industrial (A suffix) | M grade | V grade | Industrial (A suffix) |
| Lifecycle Status | End of Life | End of Life | End of Life | End of Life |
主な差別化要因
- Maximum memory configuration in the DG128 family （vs MC912DT128ACPVE)
- Industrial temperature grade (A suffix) （vs MC912DG128CCPVE)
- Dual 8-channel 10-bit ADCs (16 analog inputs) （vs Legacy M68HC11 MCUs)
設計ノート
The MC912DG128ACPVE is End of Life per the NXP product page. Before committing a design or a repair BOM, confirm remaining authorized stock (DigiKey/Mouser/Newark list residual inventory, and Rochester Electronics offers continued-source supply) and place last-time-buy quantities covering expected field-service lifetime. Do not assume cross-shipment from brokers without authenticity screening - counterfeit HC12 parts are common in the gray market.
The device operates from a 5V supply; ensure decoupling of at least 100 nF ceramic per supply pin pair placed close to the LQFP-112 power/ground pins, with bulk capacitance near the regulator. When interfacing to 3.3V peripherals, all bidirectional pins require level shifting since 5V logic output levels exceed 3.3V absolute maximum ratings on most modern devices. Estimated: verify flash programming voltage requirements in the family datasheet before designing in-system programming circuitry.
Use the 20x20 mm 112-LQFP footprint with gull-wing land pattern per IPC-compliant library generators; keep analog traces from the two 8-channel ADC input banks away from switching nodes and route a guard ground between analog and digital sections. Because the ADC multiplexers share internal sample capacitors, keep source impedance on analog inputs low (series R below ~10 k-ohm, estimated guidance) or buffer high-impedance sensors to preserve 10-bit accuracy across all 16 channels.
コンプライアンス情報
RoHS and environmental status are listed on the NXP product page under Environmental Quality but were not specified in the retrieved data. The retrieved data does not state AEC-Q100 qualification for this part. Verify compliance certificates on the NXP page before export or automotive use.
