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NXP Semiconductors MC912DT128AMPVE
- Part No.:
- MC912DT128AMPVE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
MC912DT128AMPVE.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,342
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Product details
Overview
MC912DT128AMPVE from Freescale Semiconductor (formerly Motorola) is a 16-bit HCS12 microcontroller featuring 128 KB on-chip flash memory, 8 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 targets automotive body control, industrial motor control, and embedded real-time systems.
For engineers reviewing the MC912DT128AMPVE datasheet, MC912DT128AMPVE pinout, MC912DT128AMPVE application, or MC912DT128AMPVE equivalent, this page delivers verified technical context, package-specific pin definitions, functional alternatives, and supply-chain-ready availability details - all grounded in Rev. 4.0 technical data and Freescale's official documentation.
Technical Context
The MC912DT128AMPVE implements the HCS12 CPU core with 16-bit data path, 24-bit addressing, and background debug mode (BDM) for in-circuit emulation. Its clock system integrates a PLL with programmable multiplication factor (1–32×), selectable oscillator modes (Colpitts/Pierce), and multiple clock domains for peripherals including MSCAN, SCI, SPI, and ATD.
It features dual 10-bit analog-to-digital converters (ATD0/ATD1) with configurable sample-and-hold, 8-channel PWM with center/left-aligned output, and an enhanced capture timer (ECT) supporting input capture, output compare, pulse accumulation, and quadrature decoding - all synchronized to a common bus clock derived from the PLL output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS12 16-bit CPU with 24-bit address bus and BDM interface for real-time debugging without halting execution. |
| Flash Memory | 128 KB on-chip flash with 100K write/erase cycles, sector protection, and in-application programming capability. |
| RAM | 8 KB on-chip RAM for variables, stack, and buffer storage; retains data during STOP mode with proper configuration. |
| MSCAN Controller | Full CAN 2.0A/B compliant controller with 16 message buffers, identifier acceptance filtering, and low-power wake-up support. |
| ADC Resolution & Channels | Two independent 10-bit successive-approximation ADCs (ATD0/ATD1), each with 8 analog inputs and configurable conversion sequences. |
| PWM Outputs | 8-channel PWM module with programmable resolution (8/9/10-bit), center/left-aligned modes, and dead-time insertion support. |
| Operating Voltage | 4.5 V to 5.5 V supply range ensures compatibility with legacy 5 V automotive and industrial power rails. |
| Temperature Range | –40 °C to +85 °C industrial grade operation validated per Freescale Rev. 4.0 electrical specifications. |
Pinout & Package
MC912DT128AMPVE is housed in a 112-pin PQFP (Plastic Quad Flat Package), case number 987, with 0.65 mm lead pitch and 20.0 × 20.0 mm body size. Pin assignments are defined per Section 3.2 of the Rev. 4.0 datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power Supply Inputs | Separate digital (VDD), analog (VDDA), and PLL (VDDPLL) supplies reduce noise coupling and improve ADC accuracy and clock stability. |
| VSS, VSSA, VSSPLL | Ground Returns | Dedicated ground pins per domain ensure clean return paths and minimize ground bounce in mixed-signal operation. |
| XTAL, EXTAL | Oscillator Inputs | Supports external crystal/resonator (Colpitts configuration); XTAL connects to crystal leg, EXTAL to MCU input buffer. |
| CANH, CANL | CAN Bus Interface | Differential physical layer outputs for direct connection to ISO 11898-compliant CAN transceivers. |
| PORTA[7:0] | General-Purpose I/O / ADC Input | 8-bit port multiplexed as digital I/O or analog inputs for ATD0; supports key wake-up interrupt generation. |
| PORTB[7:0] | General-Purpose I/O / PWM Output | 8-bit port configurable as digital I/O or PWM channel outputs (PWM0–PWM7); includes pull-up enable. |
| SCI0TX, SCI0RX | UART Serial Interface | Asynchronous serial communication pins for host diagnostics, bootloader updates, or sensor telemetry. |
| BKGD/RESET | BDM Debug & Reset Input | Single-pin bidirectional interface for BDM communication and active-low hardware reset assertion. |
Key Features
| Feature | Design Value |
|---|---|
| Background Debug Mode (BDM) | Enables real-time code download, breakpoint setting, and register inspection without dedicated JTAG hardware or target CPU interruption. |
| MSCAN Controller | Hardware-accelerated CAN protocol handling with automatic retransmission, error confinement, and 16-message buffer FIFO management. |
| Enhanced Capture Timer (ECT) | Supports precise timing measurement (input capture), event-driven actuation (output compare), RPM sensing (pulse accumulation), and motor commutation (quadrature decode). |
| Flash EEPROM Emulation | Uses flash sectors to emulate EEPROM functionality via software library, enabling non-volatile parameter storage without external components. |
| Low-Power STOP/WAIT Modes | Reduces current consumption to <10 µA in STOP mode while retaining RAM content and enabling wake-up via CAN, SCI, or port interrupts. |
| Integrated Clock Monitor & COP | Hardware watchdog (COP) and clock failure detection trigger safe recovery or reset, meeting ASIL-B functional safety requirements in automotive designs. |
Applications
| Automotive Body Control Module (BCM) | Industrial Motor Drive Controller |
|---|---|
|
Use Scenario: Centralized control of door locks, window lifts, lighting, and mirror adjustment in 12 V vehicle platforms. IC Role / Device Role / Timing Role: Main system MCU coordinating CAN messaging with gateway, executing PWM for motor drivers, and sampling switch inputs via PORTA. Use Value: Integrated MSCAN eliminates external CAN controller; 128 KB flash accommodates firmware updates and diagnostic stacks; 10-bit ADC enables accurate potentiometer feedback for position sensing. |
Use Scenario: Closed-loop speed and torque control of BLDC or stepper motors in HVAC blowers, pumps, and conveyors. IC Role / Device Role / Timing Role: Real-time executor of FOC or six-step commutation algorithms using ECT for rotor position capture and PWM for gate drive timing. Use Value: Hardware quadrature decoder and 8-channel PWM with dead-time control reduce CPU load; 8 KB RAM supports multi-buffered control loop variables and PID coefficient tables. |
| Off-Highway Equipment Telematics Unit | Smart Power Distribution Panel |
|
Use Scenario: Data aggregation and wireless transmission from engine sensors, GPS, and CAN bus in construction or agricultural machinery. IC Role / Device Role / Timing Role: Edge node MCU managing dual CAN networks (engine + chassis), logging fault codes to flash, and interfacing with cellular modem via SCI. Use Value: Dual ATD converters allow simultaneous monitoring of battery voltage and temperature; BDM support simplifies field firmware upgrades without disassembly. |
Use Scenario: Solid-state replacement for electromechanical relays in marine, RV, or telecom power distribution with overload and short-circuit protection. IC Role / Device Role / Timing Role: Supervisor MCU reading current-sense ADC channels, driving MOSFET gate drivers via PWM, and reporting status over CAN. Use Value: Flash memory stores trip history and calibration data; STOP-mode wake-up on CAN command enables zero-power standby until remote activation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XDP512 | Successor HCS12X derivative with 512 KB flash, XGATE co-processor, and enhanced CAN FD readiness; requires PCB layout changes due to 112-pin LQFP vs. QFP footprint variance. | Targeted at next-gen designs requiring higher code density, faster interrupt response, and future CAN FD migration path. | Select when upgrading legacy MC912DT128A-based platforms and board redesign is feasible. |
| S912XDP512J0VLHR | NXP rebranded version of MC9S12XDP512 with identical pinout and peripheral set but updated qualification (AEC-Q100 Grade 1) and extended lifecycle support. | Preferred for new designs requiring long-term automotive supply assurance and formal PPAP documentation. | Choose for greenfield automotive programs where NXP's current product roadmap and support infrastructure are prioritized. |
Compared with MC912DT128AMPVE, both alternatives offer larger flash, enhanced CAN capabilities, and modern qualification - but require layout revision or vendor transition; the original remains optimal for cost-sensitive, volume-produced legacy systems with stable 5 V/25 MHz requirements.
Availability
MC912DT128AMPVE is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, off-highway telematics, and smart power distribution applications requiring stable component supply across extended production lifecycles.
Supply support for MC912DT128AMPVE 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) was a pioneer in automotive and industrial microcontrollers, delivering robust, qualified silicon for mission-critical embedded systems.
The MC912DT128AMPVE belongs to the HCS12 family, designed specifically for cost-effective, real-time control in harsh environments - emphasizing CAN integration, flash reliability, and debuggability for Tier 1 automotive suppliers and industrial OEMs.
FAQ
What is the maximum operating frequency of the MC912DT128AMPVE?
The MC912DT128AMPVE achieves a maximum core frequency of 25 MHz using its internal PLL, which multiplies the external crystal frequency (typically 4–8 MHz) by factors from 1 to 32. This allows flexible clock scaling while maintaining stable operation within the specified 4.5–5.5 V supply range and –40 °C to +85 °C temperature envelope per Rev. 4.0 datasheet Section 21.
Does the MC912DT128AMPVE include a CAN controller?
Yes, the MC912DT128AMPVE integrates a fully compliant MSCAN controller supporting CAN 2.0A and 2.0B protocols. It provides 16 message buffers, hardware identifier filtering, automatic retransmission, and wake-up capability from STOP mode - all documented in Section 18 of the Rev. 4.0 technical data.
What development tools support the MC912DT128AMPVE?
The MC912DT128AMPVE is supported by Freescale's CodeWarrior Development Studio for HCS12, standalone BDM interfaces (e.g., USB-ML-12), and third-party emulators compatible with the 6-pin BDM header. Background Debug Mode enables full in-circuit debugging without halting real-time functions - detailed in Section 20 of the Rev. 4.0 datasheet.
Can the MC912DT128AMPVE operate from a single 5 V supply?
Yes, the MC912DT128AMPVE is designed for single 5 V operation (4.5–5.5 V range). It uses internal voltage regulation and separate VDD/VDDA/VDDPLL domains to maintain signal integrity across digital, analog, and PLL circuits - confirmed in Section 21.3 "Absolute Maximum Ratings" and "DC Electrical Characteristics" of the Rev. 4.0 datasheet.
Is flash memory programming supported in-system for the MC912DT128AMPVE?
Yes, the MC912DT128AMPVE supports in-application programming (IAP) of its 128 KB flash memory using the built-in flash command interface. This enables field firmware updates, parameter storage, and EEPROM emulation without external programmers - described in Section 8 "Flash Memory" of the Rev. 4.0 technical data.
MC912DT128AMPVE 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:
- 67
- 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC912DT128AMPVE FAQ
1.How can I place an order for MC912DT128AMPVE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC912DT128AMPVE 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 MC912DT128AMPVE reliable?
The price and inventory of MC912DT128AMPVE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC912DT128AMPVE is usually 5 days.
3.What payment methods are accepted for MC912DT128AMPVE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC912DT128AMPVE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC912DT128AMPVE?
MC912DT128AMPVE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC912DT128AMPVE 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 MC912DT128AMPVE?
For technical support, including MC912DT128AMPVE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC912DT128AMPVE requirements.
6.How does Aetrix verify that MC912DT128AMPVE is sourced from the original manufacturer or authorized distributors?
All MC912DT128AMPVE 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 MC912DT128AMPVE meets industry standards.
7.What is the process for return or replacement of MC912DT128AMPVE?
All MC912DT128AMPVE units undergo pre-shipment inspection (PSI). If there is an issue with MC912DT128AMPVE, 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 MC912DT128AMPVE part is unused and in its original packaging.
Return procedure for MC912DT128AMPVE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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