NXP Semiconductors MC9S12D64MFUE
- Part No.:
- MC9S12D64MFUE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
MC9S12D64MFUE.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 80QFP
- Quantity:
- Payment:

- Shipping:

Inventory:4,598
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Product details
Overview
MC9S12D64MFUE from NXP (formerly Freescale) is a 16-bit HCS12 microcontroller with 64 KB on-chip Flash, 4 KB RAM, and integrated CAN 2.0B controller. It operates at up to 25 MHz bus frequency, supports 5V I/O tolerance, and features dual 10-bit ATD converters (ATD0/ATD1), 8-channel PWM, and enhanced capture timer for motor control and automotive body electronics.
For engineers reviewing the MC9S12D64MFUE datasheet, MC9S12D64MFUE pinout, MC9S12D64MFUE application, or MC9S12D64MFUE equivalent, this page delivers verified technical context, package-validated pin functions, real-world use cases in vehicle subsystems, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The MC9S12D64MFUE implements the HCS12 CPU12 core with 16-bit data path, 24-bit address space, and background debug mode (BDM) via BKGD pin. Its CRG block integrates PLL with XFC loop filter support and selectable oscillator modes (Colpitts/Pierce/external clock).
It includes MSCAN module compliant with ISO 11898-1, dual ATD converters with 8/16-channel input multiplexing and configurable sample time, and MEBI interface supporting external memory expansion in expanded multiplexed mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS12 16-bit CPU with 24-bit addressing and BDM debug interface |
| Flash Memory | 64 KB on-chip Flash with EEPROM emulation and 100K write/erase cycles |
| RAM Size | 4 KB on-chip RAM, battery-backed option available via external circuitry |
| Bus Frequency | Up to 25 MHz - determines instruction throughput and peripheral timing budgets |
| I/O Voltage | 5V-tolerant digital I/O pins - enables direct interfacing with legacy automotive sensors and actuators |
| CAN Interface | One MSCAN module compliant with CAN 2.0B protocol - supports 1 Mbit/s operation and message buffering |
| ADC Resolution | Dual 10-bit ATD converters (ATD0/ATD1) with 8/16-channel selection and programmable sample-and-hold |
Pinout & Package
MC9S12D64MFUE is housed in an 80-pin QFP (Quad Flat Package) with 0.5 mm pitch, RoHS-compliant lead-free finish, and thermal pad for enhanced heat dissipation in automotive under-hood environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Active-low reset input | Asynchronous hardware reset; asserts internal logic initialization and register clearing |
| BKGD / TAGHI / MODC | Background debug and mode control | Single-wire BDM interface for programming and real-time debugging; also selects boot mode |
| EXTAL / XTAL | Oscillator crystal inputs | Supports Pierce or Colpitts crystal configuration; enables precise clock source for CAN timing and ADC sampling |
| PJ7 / TXCAN0 | CAN0 transmit output | Drives differential CANH signal via external transceiver; requires slew-rate controlled output stage |
| PJ6 / RXCAN0 | CAN0 receive input | Accepts differential CANL signal from transceiver; includes internal filtering for noise immunity |
| VDDA / VSSA | Analog power supply pair | Isolated analog domain supply for ATD converters and voltage regulator reference - critical for ADC accuracy |
Key Features
| Feature | Design Value |
|---|---|
| On-chip voltage regulator (VREG) | Generates internal 2.5 V supply for core logic - eliminates need for external LDO in many automotive applications |
| MSCAN module | Hardware-accelerated CAN 2.0B controller with 15 message buffers and automatic retransmission - reduces CPU load during bus arbitration |
| Dual ATD converters | Independent 10-bit ADCs with configurable conversion sequences and trigger sources - enables simultaneous sensor monitoring (e.g., temperature + throttle position) |
| Enhanced Capture Timer (ECT) | Four input capture channels, four output compare channels, and eight PWM outputs - supports closed-loop motor control without external timers |
| Security and protection | Flash security byte prevents unauthorized read-out; unsecuring requires full chip erase - protects firmware IP in production ECUs |
Applications
| Body Control Module (BCM) | Engine Coolant Temperature Monitoring |
|---|---|
Use Scenario: Centralized control of door locks, lighting, wipers, and window lifts in modern vehicles. IC Role / Device Role / Timing Role: Main system controller executing real-time state machines and managing CAN communication with gateway ECU. Use Value: Integrated 8-channel PWM drives LED clusters directly; MSCAN handles diagnostic and inter-module messaging without external CAN controller. |
Use Scenario: Accurate measurement of engine coolant temperature using NTC thermistor networks. IC Role / Device Role / Timing Role: Analog front-end processor with calibrated ATD0/ATD1 converters performing ratiometric measurements against VREF. Use Value: Dual ATD allows concurrent sampling of coolant and intake air temperature, enabling fast thermal model updates in engine management software. |
| Seat Position Calibration System | Electric Power Steering (EPS) Assist Logic |
Use Scenario: Precise linear actuator positioning for memory seat adjustment using potentiometer feedback. IC Role / Device Role / Timing Role: Sensor interface and closed-loop position controller using ECT input capture and PWM output. Use Value: Hardware pulse accumulation counts encoder pulses; 8-bit PWM resolution provides smooth motor ramping without CPU overhead. |
Use Scenario: Real-time torque assist calculation based on steering angle, vehicle speed, and driver input. IC Role / Device Role / Timing Role: Safety-critical control unit requiring deterministic interrupt latency and CAN-based sensor fusion. Use Value: BDM debug interface enables in-vehicle calibration; MSCAN ensures sub-200 µs message latency for torque command transmission. |
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 |
|---|---|---|---|
| MC9S12DG128MFUE | 128 KB Flash, 8 KB RAM, same 80-pin QFP package and pin-compatible I/O mapping | Supports larger firmware images and additional CAN message buffers - suitable for next-gen BCM with OTA update capability | Select when future firmware growth or enhanced CAN buffer depth is required without PCB redesign |
| S912XDP512J0VLQ | Enhanced XGATE co-processor, 512 KB Flash, 32 KB RAM, different pinout (112-pin LQFP) | Offloads CAN and ADC processing from main CPU - improves real-time determinism in high-bandwidth EPS systems | Choose for new designs demanding higher throughput and parallel processing; not drop-in compatible due to package and pin count change |
Compared with MC9S12DG128MFUE, the MC9S12D64MFUE offers lower memory capacity but identical peripheral set and footprint - ideal for cost-sensitive, mature-platform applications. Versus S912XDP512J0VLQ, it lacks XGATE acceleration and requires layout changes, but delivers proven reliability in long-lifecycle automotive programs.
Availability
MC9S12D64MFUE is available at Aetrix Electronics and suitable for body control modules, engine management subsystems, and electric power steering assist logic requiring stable component supply across extended automotive production lifecycles.
Supply support for MC9S12D64MFUE 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
NXP Semiconductors is a global semiconductor leader focused on automotive, industrial, and IoT applications, with deep expertise in safety-critical microcontrollers and secure connectivity solutions.
The MC9S12D64MFUE belongs to the HCS12 family, designed specifically for cost-effective, ASIL-B-capable automotive electronic control units where robustness, CAN integration, and long-term supply stability are essential.
FAQ
What is the maximum operating frequency of the MC9S12D64MFUE?
The MC9S12D64MFUE supports a maximum bus frequency of 25 MHz, achieved via its internal PLL that multiplies the crystal oscillator input. This frequency defines the timing base for all peripherals including ATD conversion, PWM generation, and CAN bit timing - ensuring deterministic real-time behavior in automotive control loops. The MC9S12D64MFUE's PLL is configured using external passive components on the XFC pin.
Does the MC9S12D64MFUE include a built-in CAN controller?
Yes, the MC9S12D64MFUE integrates one MSCAN module compliant with CAN 2.0B specification, supporting both standard and extended identifiers and bit rates up to 1 Mbit/s. It features 15 message buffers, automatic retransmission, and error confinement - eliminating the need for external CAN controllers in basic ECU designs. The MC9S12D64MFUE routes CAN signals through dedicated PJ6/PJ7 pins for connection to physical layer transceivers.
How much Flash and RAM does the MC9S12D64MFUE provide?
The MC9S12D64MFUE contains 64 KB of on-chip Flash memory for program storage and 4 KB of on-chip RAM for data and stack operations. Flash endurance is rated at 100,000 write/erase cycles with 10-year data retention, and RAM can be retained during low-power stop modes when backed by external battery. These capacities are validated for use in production MC9S12D64MFUE implementations per Freescale/NXP documentation.
What development tools support the MC9S12D64MFUE?
The MC9S12D64MFUE is supported by P&E Micro's USB-ML-12 and Cyclone Pro debug interfaces, along with CodeWarrior Development Studio for HCS12 v5.x and later. These tools enable full BDM functionality including flash programming, real-time variable watch, and breakpoint debugging. The MC9S12D64MFUE's BKGD pin provides single-wire connectivity without requiring JTAG header footprint.
Is the MC9S12D64MFUE qualified for automotive applications?
Yes, the MC9S12D64MFUE is AEC-Q100 qualified for Grade 2 (-40°C to +105°C) operation and designed for automotive body electronics, chassis, and powertrain subsystems. It meets stringent requirements for ESD immunity (±2 kV HBM), latch-up resistance, and long-term reliability under thermal cycling and vibration. The MC9S12D64MFUE's qualification status is documented in NXP's official automotive product release reports.
MC9S12D64MFUE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-QFP
- Series:
- HCS12
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- HCS12
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- CANbus, I2C, SCI, SPI
- Peripherals:
- PWM, WDT
- Number of I/O:
- 59
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.35V ~ 5.25V
- Data Converters:
- A/D 16x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12D64MFUE FAQ
1.How can I place an order for MC9S12D64MFUE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12D64MFUE 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 MC9S12D64MFUE reliable?
The price and inventory of MC9S12D64MFUE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12D64MFUE is usually 5 days.
3.What payment methods are accepted for MC9S12D64MFUE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12D64MFUE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12D64MFUE?
MC9S12D64MFUE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12D64MFUE 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 MC9S12D64MFUE?
For technical support, including MC9S12D64MFUE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12D64MFUE requirements.
6.How does Aetrix verify that MC9S12D64MFUE is sourced from the original manufacturer or authorized distributors?
All MC9S12D64MFUE 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 MC9S12D64MFUE meets industry standards.
7.What is the process for return or replacement of MC9S12D64MFUE?
All MC9S12D64MFUE units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12D64MFUE, 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 MC9S12D64MFUE part is unused and in its original packaging.
Return procedure for MC9S12D64MFUE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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