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NXP Semiconductors MC912DG128AMPVE
- Part No.:
- MC912DG128AMPVE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
MC912DG128AMPVE.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:244
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Product details
Overview
MC912DG128AMPVE from Freescale Semiconductor is a 16-bit HCS12 microcontroller featuring 128 KB on-chip Flash EEPROM, 8 KB RAM, and integrated MSCAN 2.0B controller for automotive network communication. It operates at up to 25 MHz core frequency with a PLL-based clock system, supports 10-bit ADC (16-channel), PWM, ECT, SPI, SCI, and I²C interfaces, and targets engine control units and body electronics.
For engineers reviewing the MC912DG128AMPVE datasheet, MC912DG128AMPVE pinout, MC912DG128AMPVE application, or MC912DG128AMPVE equivalent, key selection criteria include CAN 2.0B compliance, 112-pin QFP package compatibility, Flash write/erase endurance (10k cycles), real-time interrupt capability, and BDM debug interface support.
Technical Context
The MC912DG128AMPVE implements the HCS12 CPU core derived from the Motorola 68HC12 architecture, executing instructions in single-cycle or multi-cycle modes with 16-bit data and address buses. Its memory subsystem includes paged Flash (128 KB), RAM (8 KB), and EEPROM emulation via Flash sectors.
It integrates a fully compliant MSCAN 2.0B controller with 15 message buffers, programmable acceptance filtering, and bus-off recovery, alongside dual 10-bit ADC modules (ATD0/ATD1), 8-channel PWM with center/left-aligned modes, and an Enhanced Capture Timer with input capture/output compare capabilities.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS12 16-bit CPU, upward-compatible with 68HC12 instruction set; enables legacy code reuse and deterministic real-time execution. |
| Flash Memory | 128 KB on-chip Flash EEPROM with 10,000 write/erase cycles; supports in-application programming and secure protection via FPOPEN bit. |
| RAM Size | 8 KB on-chip RAM; provides fast data storage for real-time variables, stack, and buffer operations without external memory dependency. |
| CAN Interface | MSCAN 2.0B controller with 15 message buffers, identifier masking, and automatic retransmission; meets ISO 11898-1 for automotive serial networking. |
| ADC Resolution | Dual 10-bit successive-approximation ADCs (ATD0/ATD1), each with 16 input channels and configurable sample-and-hold timing. |
| Operating Voltage | 4.5 V to 5.5 V supply range; ensures robust operation in automotive battery environments with load dump and cold-crank conditions. |
| Max Core Frequency | 25 MHz (with PLL enabled); delivers 25 MIPS throughput for time-critical control loops in engine management systems. |
Pinout & Package
MC912DG128AMPVE is housed in a 112-pin 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 specification per Section 3.2 of the Rev. 4.0 technical data.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated power pins for core and I/O domains; decoupling required per Figure 3-4 for stable PLL operation. |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU registers and initializes peripherals; internal pull-up ensures defined state at power-up. |
| MODA, MODB | Mode select inputs | Configure boot mode (Normal, Special Bootstrap, Background Debug) at power-on; latched during reset sequence. |
| CANL, CANH | CAN differential bus lines | Direct connection to ISO 11898-compliant transceiver; integrated CAN controller handles arbitration, error detection, and frame formatting. |
| AD0–AD15 | Analog input channels | 16 dedicated analog inputs shared across ATD0/ATD1; support single-ended or differential sampling with programmable conversion triggers. |
| PT0–PT7 | Port T general-purpose I/O | 8-bit bidirectional port with edge-sensitive wake-up capability; used for sensor inputs, actuator control, or digital comms signaling. |
Key Features
| Feature | Design Value |
|---|---|
| Background Debug Mode (BDM) | Single-wire debug interface enabling non-intrusive breakpoint setting, register inspection, and Flash programming without dedicated JTAG pins. |
| PWM with dead-time insertion | 8-channel PWM module supporting complementary output pairs with programmable dead-time to prevent shoot-through in motor gate drivers. |
| Enhanced Capture Timer (ECT) | 16-bit timer with input capture, output compare, pulse accumulation, and quadrature decoding-ideal for RPM sensing and position tracking. |
| Real-Time Interrupt (RTI) | Programmable periodic interrupt source independent of main clock; used for OS tick generation or timed diagnostics without CPU overhead. |
| Computer Operating Properly (COP) | Watchdog timer with software-resettable window; prevents runaway code by requiring periodic service before timeout, configurable from 2 ms to 1.1 s. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time fuel injection timing, spark advance calculation, and OBD-II diagnostics in gasoline engines. IC Role / Device Role / Timing Role: Primary controller executing closed-loop combustion algorithms with sub-millisecond latency using ECT and ADC. Use Value: Integrated MSCAN enables seamless communication with transmission and ABS ECUs; Flash endurance supports field updates over vehicle lifetime. |
Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC in passenger vehicles. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slaves and CAN gateway; uses PWM for LED dimming and SCI for diagnostic access. Use Value: Low-power STOP modes reduce quiescent current below 10 µA; key-wake I/O ports enable selective wake-up from sleep without full system activation. |
| Anti-lock Braking System (ABS) | Transmission Control Unit (TCU) |
Use Scenario: High-speed wheel speed signal acquisition and hydraulic valve actuation control under dynamic braking conditions. IC Role / Device Role / Timing Role: Real-time sensor fusion hub processing quadrature encoder inputs via ECT and driving solenoid PWM outputs. Use Value: Dual ADCs allow simultaneous sampling of temperature and pressure sensors; BDM support simplifies calibration and validation in production test. |
Use Scenario: Shift logic computation, torque converter clutch control, and adaptive learning for gear engagement smoothness. IC Role / Device Role / Timing Role: Deterministic scheduler managing CAN messaging, PWM-driven solenoid valves, and RTI-triggered diagnostics. Use Value: 25 MHz core frequency ensures <50 µs worst-case interrupt latency for safety-critical torque limiting; Flash security prevents unauthorized firmware modification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC912DG128ACPVE | Same core, Flash, RAM, and peripheral set; differs only in oscillator configuration-uses Pierce crystal circuit instead of Colpitts. | Requires external 4–8 MHz crystal with load capacitors; less tolerant of board-level noise than Colpitts configuration in MC912DG128AMPVE. | Select MC912DG128ACPVE when crystal layout constraints favor Pierce topology or when sourcing standard crystals with known CL values. |
| S912XDP512J1MAG | Successor S12X derivative with 512 KB Flash, 32 KB RAM, enhanced COP, and XGATE co-processor; pinout incompatible. | Supports higher-complexity control algorithms and larger BOMs; requires PCB redesign due to 144-pin LQFP package and different pin mapping. | Choose S912XDP512J1MAG for new designs needing scalability, while retaining MC912DG128AMPVE for drop-in replacement in existing 112-pin QFP layouts. |
Compared with MC912DG128ACPVE, MC912DG128AMPVE offers superior oscillator stability in noisy automotive environments via its Colpitts configuration; versus S912XDP512J1MAG, it provides proven qualification, lower cost, and no hardware redesign-making it optimal for cost-sensitive, volume-production ECU revisions.
Availability
MC912DG128AMPVE is available at Aetrix Electronics and suitable for engine control units, body control modules, and anti-lock braking systems requiring stable component supply across extended automotive temperature ranges (–40°C to +125°C).
Supply support for MC912DG128AMPVE 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 global leader in automotive and industrial microcontrollers, known for high-reliability silicon and long-term product longevity commitments.
The MC912DG128AMPVE belongs to the HCS12 family, designed specifically for cost-optimized, real-time automotive control applications where functional safety, CAN integration, and field-programmable Flash are essential.
FAQ
What is the maximum operating frequency of the MC912DG128AMPVE?
The MC912DG128AMPVE achieves a maximum core frequency of 25 MHz using its internal Phase-Locked Loop (PLL) with an external 4 MHz crystal reference. This yields 25 million instructions per second (MIPS) performance, sufficient for real-time engine control tasks with deterministic interrupt latency under 50 µs. The PLL lock time and stability are specified in Section 12.4 of the Rev. 4.0 technical data.
Does the MC912DG128AMPVE support CAN 2.0B protocol?
Yes, the MC912DG128AMPVE integrates a fully compliant MSCAN 2.0B controller supporting both standard (11-bit) and extended (29-bit) identifiers, bit rates up to 1 Mbps, and automatic error confinement per ISO 11898-1. Its 15 message buffers, programmable acceptance filters, and bus-off recovery make it suitable for automotive network nodes in ECUs and TCUs.
How many analog input channels does the MC912DG128AMPVE have?
The MC912DG128AMPVE features two independent 10-bit Analog-to-Digital Converters (ATD0 and ATD1), each supporting up to 16 analog input channels (AD0–AD15). Channels can be configured for single-ended or differential sampling, with programmable sample-and-hold times and conversion triggers from ECT, PWM, or software.
What debug interface does the MC912DG128AMPVE provide?
The MC912DG128AMPVE includes a Background Debug Mode (BDM) interface using a single-wire serial protocol. This allows non-intrusive debugging-including breakpoint insertion, register read/write, and Flash programming-without requiring dedicated JTAG pins or halting real-time operation, as detailed in Section 20.4 of the technical data.
Is the MC912DG128AMPVE qualified for automotive temperature ranges?
Yes, the MC912DG128AMPVE is rated for operation across the full automotive temperature range of –40°C to +125°C (ambient), with electrical specifications validated per Section 21.3 of the Rev. 4.0 technical data. Its packaging, thermal design, and internal voltage regulation ensure reliable function in under-hood and cabin-mounted control modules.
MC912DG128AMPVE 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC912DG128AMPVE FAQ
1.How can I place an order for MC912DG128AMPVE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC912DG128AMPVE 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 MC912DG128AMPVE reliable?
The price and inventory of MC912DG128AMPVE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC912DG128AMPVE is usually 5 days.
3.What payment methods are accepted for MC912DG128AMPVE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC912DG128AMPVE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC912DG128AMPVE?
MC912DG128AMPVE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC912DG128AMPVE 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 MC912DG128AMPVE?
For technical support, including MC912DG128AMPVE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC912DG128AMPVE requirements.
6.How does Aetrix verify that MC912DG128AMPVE is sourced from the original manufacturer or authorized distributors?
All MC912DG128AMPVE 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 MC912DG128AMPVE meets industry standards.
7.What is the process for return or replacement of MC912DG128AMPVE?
All MC912DG128AMPVE units undergo pre-shipment inspection (PSI). If there is an issue with MC912DG128AMPVE, 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 MC912DG128AMPVE part is unused and in its original packaging.
Return procedure for MC912DG128AMPVE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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