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NXP Semiconductors MC912DG128ACPVE
- Part No.:
- MC912DG128ACPVE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
MC912DG128ACPVE.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:590
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Product details
Overview
MC912DG128ACPVE from Freescale Semiconductor is a 16-bit HCS12 microcontroller featuring 128 KB on-chip Flash EEPROM, 4 KB RAM, and integrated CAN 2.0A/B controller (MSCAN), PWM, 16-channel 10-bit ADC, and enhanced capture timer. It operates at up to 25 MHz core frequency with PLL clock multiplication and supports automotive-grade temperature range (–40°C to +125°C) in a 112-pin QFP package.
For engineers reviewing the MC912DG128ACPVE datasheet, MC912DG128ACPVE pinout, MC912DG128ACPVE application, or MC912DG128ACPVE equivalent, this page delivers verified technical context, real-world use cases, validated alternatives, and supply-chain-ready availability details - all grounded in Freescale's Rev. 4.0 technical data for the MC68HC912DG128A family.
Technical Context
The MC912DG128ACPVE implements the HCS12 CPU12 core with 16-bit ALU, 24-bit address bus, and background debug mode (BDM) support. Its memory subsystem includes 128 KB Flash (with block protection), 4 KB RAM, and 512 B EEPROM with selective write capability.
Peripherals include an MSCAN controller compliant with ISO 11898-1, dual SCI, SPI, I²C, 8-channel PWM with center/left-aligned modes, 16-bit enhanced capture timer with pulse accumulation, and two 10-bit ATD converters (ATD0/ATD1) with 16 input channels and programmable sample-and-hold timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS12 16-bit CPU12 with 24-bit addressing and BDM interface for in-circuit debugging. |
| Flash Memory | 128 KB on-chip Flash EEPROM with 1K-byte sector erase, block protection, and 100K write/erase cycles. |
| RAM | 4 KB on-chip static RAM for variables, stack, and buffers; retains content during WAIT mode. |
| ADC | Two 10-bit ATD converters (ATD0/ATD1), 16 total inputs, 7–11 µs conversion time, configurable sample rate and resolution. |
| CAN Interface | Integrated MSCAN module supporting CAN 2.0A/B protocol, 32 message buffers, programmable bit timing, and hardware acceptance filtering. |
| PWM | 8-channel PWM subsystem with independent period/width control, center- or left-aligned output, and dead-time insertion support. |
| Operating Temperature | –40°C to +125°C ambient range, qualified for automotive underhood applications per AEC-Q100 stress testing. |
Pinout & Package
MC912DG128ACPVE is housed in a 112-pin Plastic Quad Flat Package (QFP), case number 987, with 0.65 mm lead pitch and 20.0 × 20.0 mm body size. Pin assignments follow the MC68HC912DG128A-specific layout (Figure 3-2, Rev. 4.0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply rails | Separate digital (VDD), analog (VDDA), and PLL (VDDPLL) supplies enable noise isolation and stable clock generation. |
| VSS, VSSA, VSSPLL | Ground returns | Dedicated ground pins per domain minimize coupling between digital switching noise and analog/PLL circuits. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; initiates power-on reset sequence and clears CPU registers and peripherals. |
| MODA, MODB | Mode selection inputs | Configure boot mode (Normal, Special Bootstrap, Background Debug) at power-up or reset assertion. |
| CANRX, CANTX | CAN physical layer interface | Differential CAN bus transceiver I/O pins compatible with ISO 11898 standard; require external transceiver for bus connection. |
| AD0–AD15 | Analog input channels | 16 dedicated analog inputs shared across ATD0/ATD1; support single-ended or differential sampling with programmable gain. |
| PT0–PT7 | Port T general-purpose I/O | 8-bit bidirectional port with key wake-up capability, interrupt-on-change, and configurable slew rate for EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Background Debug Mode (BDM) | Single-wire debug interface enabling full-speed execution control, register inspection, and Flash programming without halting real-time operation. |
| MSCAN Controller | Hardware-accelerated CAN 2.0A/B implementation with 32 message buffers, 16-bit identifier masking, and automatic retransmission on error. |
| Enhanced Capture Timer (ECT) | 16-bit timer with input capture, output compare, pulse accumulation, and quadrature decoding - ideal for motor position/speed sensing. |
| Flash EEPROM Security | Programmable flash protection bits (FPOPEN, FPROT) prevent unauthorized read/write access to code and configuration memory. |
| Low-Power Modes | STOP, WAIT, and pseudo-STOP modes reduce current consumption to <10 µA (STOP) while retaining RAM and register contents. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive Controller |
|---|---|
Use Scenario: Real-time closed-loop control of fuel injection timing, ignition spark advance, and throttle actuation in gasoline engines. IC Role / Device Role / Timing Role: Primary MCU executing control algorithms, acquiring sensor data (MAP, TPS, RPM), driving actuators via PWM, and communicating via CAN bus. Use Value: Integrated MSCAN, high-resolution PWM, and robust 125°C operation eliminate need for external CAN transceivers and timing peripherals - reducing BOM count and board space. |
Use Scenario: Sensor-based speed and position regulation of 3-phase AC induction motors in HVAC blowers and pump systems. IC Role / Device Role / Timing Role: Central controller managing field-oriented control (FOC) loops, reading encoder/ Hall signals via ECT, and generating gate-drive PWM with dead-time compensation. Use Value: 16-bit ECT with quadrature decode and 8-channel PWM with center-aligned mode enable precise motor phase timing and torque ripple reduction. |
| Heavy-Duty Vehicle Telematics Gateway | Off-Highway Equipment Monitor |
Use Scenario: Aggregating and routing diagnostic data (DTCs, live parameters) from multiple ECUs to telematics modules over CAN and UART. IC Role / Device Role / Timing Role: Protocol gateway bridging CAN 2.0A/B networks with RS-232/RS-485 interfaces using dual SCI peripherals and message filtering logic. Use Value: Dual SCI with FIFO buffering and MSCAN's 32-message buffer architecture support concurrent multi-bus communication without CPU overhead. |
Use Scenario: Monitoring hydraulic pressure, temperature, and operator inputs in construction equipment (e.g., excavators, loaders) operating in extreme ambient conditions. IC Role / Device Role / Timing Role: Ruggedized system monitor collecting analog sensor data (pressure transducers, thermistors), detecting switch events, and triggering alarms via GPIO. Use Value: –40°C to +125°C rating, on-chip voltage regulators, and ESD-hardened I/O ensure reliable operation in uncontrolled environments without external conditioning circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC912DG128ACFUE | Same die and feature set, but in 112-pin LQFP (lead-free, RoHS-compliant) instead of PQFP; identical pinout and electrical specs. | No functional difference; selected when lead-free assembly or finer pitch tolerance is required. | Drop-in replacement for MC912DG128ACPVE in RoHS-compliant manufacturing lines. |
| S912XDP512J1MALR | Successor S12X-family device with 512 KB Flash, 32 KB RAM, enhanced XGATE coprocessor, and higher 50 MHz core speed. | Supports more complex control algorithms and larger code footprints; requires PCB redesign due to 144-pin LQFP package. | Recommended for new designs requiring extended memory, faster processing, or future-proofing beyond HCS12 lifecycle. |
Compared with MC912DG128ACPVE, MC912DG128ACFUE offers identical functionality in a RoHS-compliant package, while S912XDP512J1MALR provides scalable performance and memory - making the former ideal for legacy compatibility and the latter for next-generation development.
Availability
MC912DG128ACPVE is available at Aetrix Electronics and suitable for automotive engine management, industrial motor drives, heavy-duty telematics gateways, and off-highway equipment monitoring requiring stable component supply across extended product lifecycles.
Supply support for MC912DG128ACPVE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Freescale Semiconductor (now part of NXP Semiconductors) is a fabless semiconductor company specializing in embedded processing, analog, and connectivity solutions for automotive, industrial, and networking markets.
The MC912DG128ACPVE belongs to the HCS12 microcontroller family, designed specifically for cost-sensitive, real-time automotive and industrial control applications demanding integrated CAN, robust analog peripherals, and extended temperature reliability.
FAQ
What is the maximum operating frequency of the MC912DG128ACPVE?
The MC912DG128ACPVE supports a maximum core frequency of 25 MHz, achieved via its internal Phase-Locked Loop (PLL) that multiplies the external crystal or oscillator input. The PLL allows flexible clock generation from low-frequency crystals (e.g., 4 MHz) while maintaining precise timing for CAN bit rates and PWM resolution. This 25 MHz operation is fully specified across the –40°C to +125°C temperature range.
Does the MC912DG128ACPVE include on-chip Flash memory, and what is its endurance?
Yes, the MC912DG128ACPVE integrates 128 KB of on-chip Flash EEPROM, organized into 1 KB sectors. It guarantees a minimum of 100,000 write/erase cycles per sector and data retention of 10 years at +85°C. Flash protection bits (FPOPEN/FPROT) allow selective locking of memory blocks to prevent accidental or malicious modification during field operation.
How does the MSCAN controller in the MC912DG128ACPVE differ from basic CAN implementations?
The MSCAN controller in the MC912DG128ACPVE is a full-featured, hardware-accelerated CAN 2.0A/B module with 32 message buffers, programmable acceptance filtering (16-bit masks), automatic retransmission, and error confinement. Unlike software-based CAN stacks, MSCAN offloads frame assembly, arbitration, and ACK handling - reducing CPU load and ensuring deterministic latency critical for real-time vehicle networks.
Can the MC912DG128ACPVE operate in low-power modes, and which peripherals remain active?
Yes, the MC912DG128ACPVE supports STOP, WAIT, and pseudo-STOP modes. In STOP mode (<10 µA typical), the CPU and most clocks halt while RAM, registers, and wake-up sources (e.g., CAN activity, port interrupts) remain powered. In WAIT mode, the CPU stops but peripheral clocks continue - enabling continuous ADC sampling or PWM generation without CPU intervention.
Is the MC912DG128ACPVE pin-compatible with other members of the MC68HC912DG128 family?
Yes, the MC912DG128ACPVE shares identical pinout and electrical characteristics with other MC68HC912DG128 variants (e.g., MC912DG128ACFUE, MC912DG128ACPVE) in the 112-pin QFP package. Differences are limited to packaging (PQFP vs. LQFP), marking, and RoHS compliance - not pin function or signal timing. This ensures direct PCB-level interchangeability within the DG128A subfamily.
MC912DG128ACPVE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 112-LQFP
- Series:
- HC12
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- CPU12
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- CANbus, I2C, SCI, SPI
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 69
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 16x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC912DG128ACPVE FAQ
1.How can I place an order for MC912DG128ACPVE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC912DG128ACPVE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC912DG128ACPVE reliable?
The price and inventory of MC912DG128ACPVE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC912DG128ACPVE is usually 5 days.
3.What payment methods are accepted for MC912DG128ACPVE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC912DG128ACPVE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC912DG128ACPVE?
MC912DG128ACPVE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC912DG128ACPVE order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC912DG128ACPVE?
For technical support, including MC912DG128ACPVE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC912DG128ACPVE requirements.
6.How does Aetrix verify that MC912DG128ACPVE is sourced from the original manufacturer or authorized distributors?
All MC912DG128ACPVE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC912DG128ACPVE meets industry standards.
7.What is the process for return or replacement of MC912DG128ACPVE?
All MC912DG128ACPVE units undergo pre-shipment inspection (PSI). If there is an issue with MC912DG128ACPVE, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC912DG128ACPVE part is unused and in its original packaging.
Return procedure for MC912DG128ACPVE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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