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NXP Semiconductors MC9S12D64MFU
- Part No.:
- MC9S12D64MFU
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
MC9S12D64MFU.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,167
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Product details
Overview
MC9S12D64MFU 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, and features dual 10-bit ATD converters (ATD0/ATD1), 8-channel PWM, and enhanced capture timer - used in automotive body control modules and industrial motor controllers.
For engineers reviewing the MC9S12D64MFU datasheet, MC9S12D64MFU pinout, MC9S12D64MFU application, or MC9S12D64MFU equivalent, this page delivers verified electrical specs, package mapping to 80-pin QFP, functional block integration details, and validated alternative parts for legacy automotive ECU redesigns.
Technical Context
The MC9S12D64MFU implements the HCS12 CPU12 core with 16-bit data path and 24-bit address space, executing instructions in single-cycle or multi-cycle modes depending on addressing. Its memory map includes 64 KB Flash (with EEPROM emulation), 4 KB RAM, and configurable register banks mapped across $0000–$FFFF.
System timing is governed by a PLL-based clock generator supporting crystal (4–8 MHz), external clock, or RC oscillator inputs, with programmable bus frequencies up to 25 MHz. The device integrates MSCAN for ISO 11898-compliant CAN communication, two independent ATD converters with 16-channel analog input multiplexing, and an 8-channel PWM subsystem with center-aligned and edge-aligned modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS12 16-bit CPU with 24-bit addressing and 16-MHz max internal core clock |
| Flash Memory | 64 KB on-chip Flash with 100K write/erase cycles and 10-year data retention |
| RAM Size | 4 KB on-chip RAM, battery-backed option via external circuitry |
| Bus Frequency | Up to 25 MHz - determines instruction throughput and peripheral timing resolution |
| I/O Voltage | 5 V tolerant I/O pins compatible with legacy automotive sensor and actuator interfaces |
| CAN Interface | One MSCAN module compliant with ISO 11898-1 (CAN 2.0B), supporting 1 Mbit/s operation |
| ADC Resolution | Dual 10-bit ATD converters (ATD0/ATD1), each with 8/16-channel multiplexed inputs and 8 µs conversion time |
Pinout & Package
MC9S12D64MFU is packaged in an 80-pin QFP (case no. 841B), with 64 general-purpose I/O pins distributed across Ports A, B, E, H, J, K, M, P, S, and T. Power supply pins include dedicated VDDX/VSSX (I/O), VDDR/VSSR (regulator), VDDA/VSSA (analog), and VDDPLL/VSSPLL (PLL).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Active-low reset input | Asynchronous hardware reset; asserts internal logic initialization and register clearing |
| BKGD / TAGHI / MODC | Background debug / mode control | Single-wire BDM interface for programming and real-time debugging; configures boot mode |
| EXTAL / XTAL | Oscillator input/output | Connects to external crystal or ceramic resonator (4–8 MHz); enables precise clock source for PLL |
| PJ6 / RXCAN0 | CAN receive input | High-impedance differential receiver input for CAN_H signal; requires external termination |
| PJ7 / TXCAN0 | CAN transmit output | Push-pull driver output for CAN_L; complements PJ6 to form full CAN transceiver interface |
| VREGEN | Voltage regulator enable | Active-high control for on-chip 5 V regulator; must be tied high for internal VDD generation |
Key Features
| Feature | Design Value |
|---|---|
| On-chip voltage regulator | Generates stable 5 V from 7–18 V automotive battery input; eliminates need for external LDO in many designs |
| MSCAN module | Hardware-accelerated CAN 2.0B controller with 16-message object buffers and automatic retransmission |
| Enhanced Capture Timer (ECT) | 16-bit timer with four input capture channels, four output compare channels, and quadrature decode support |
| Background Debug Mode (BDM) | Single-pin debug interface enabling flash programming, breakpoint setting, and live register inspection without JTAG |
| Flash security lock | Configurable protection against unauthorized read/write access to Flash and EEPROM memory regions |
Applications
| Automotive Body Control Unit (BCU) | Industrial Motor Drive Controller |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirrors, and lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main system MCU coordinating CAN messaging, analog sensor acquisition (potentiometers, temp sensors), and PWM-driven motor outputs. Use Value: Integrated MSCAN and 5 V I/O eliminate level-shifting components; on-chip regulator simplifies power design for 12 V battery systems. |
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and conveyor systems. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms using ECT for encoder timing and PWM for gate drive signals. Use Value: Dual ATD converters enable simultaneous sampling of current and voltage feedback; 25 MHz bus frequency ensures sub-10 µs control loop latency. |
| Heavy-Duty Vehicle Instrument Cluster | Off-Road Equipment Telematics Gateway |
Use Scenario: Analog gauge driving and digital display management in construction and agricultural machinery dashboards. IC Role / Device Role / Timing Role: Primary display controller interfacing with stepper drivers, SPI LCDs, and CAN network for engine and hydraulics data. Use Value: 8-channel PWM supports direct stepper coil control; 64 KB Flash accommodates multiple UI firmware variants and calibration tables. |
Use Scenario: Aggregating J1939 and CAN FD data from engine, transmission, and implement controllers for satellite/GSM telemetry upload. IC Role / Device Role / Timing Role: Protocol translation hub with dual CAN interfaces (MSCAN + optional external transceiver) and UART-to-CAN bridging logic. Use Value: Hardware CAN message filtering reduces CPU load; Flash EEPROM emulation enables field-updatable routing rules without external NV memory. |
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 |
|---|---|---|---|
| S912XDP512J0 | Successor HCS12X derivative with 512 KB Flash, enhanced interrupt latency, and XGATE co-processor | Supports larger firmware images and real-time tasks offloaded from main CPU | Recommended for new designs requiring extended memory or deterministic response times |
| MC9S12XEP100MAL | Pin-compatible 112-pin LQFP variant with 1 MB Flash, 32 KB RAM, and dual CAN | Enables higher integration density and additional CAN nodes without board redesign | Preferred when migrating existing 80-pin layouts to higher memory capacity while retaining peripheral compatibility |
Compared with MC9S12D64MFU, the S912XDP512J0 offers scalable performance for next-gen ECUs, while the MC9S12XEP100MAL provides drop-in memory expansion - both retain HCS12 software compatibility but require updated toolchain support and revised power delivery for higher current draw.
Availability
MC9S12D64MFU is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, and heavy-duty vehicle instrumentation requiring stable component supply and long-term lifecycle assurance.
Supply support for MC9S12D64MFU 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 secure connectivity solutions for automotive, industrial, and IoT markets, with deep heritage in automotive microcontrollers.
The MC9S12D64MFU belongs to NXP's legacy HCS12 family, designed specifically for cost-sensitive, safety-critical automotive body electronics where robustness, CAN integration, and 5 V compatibility are essential.
FAQ
What is the maximum operating temperature range for the MC9S12D64MFU?
The MC9S12D64MFU is rated for industrial temperature range: –40 °C to +85 °C. This specification is defined in the Absolute Maximum Ratings table of the official device user guide and applies to continuous operation under specified voltage and load conditions. The MC9S12D64MFU maintains full functionality across this range, including Flash programming and CAN communication.
Does the MC9S12D64MFU support in-circuit debugging without JTAG?
Yes, the MC9S12D64MFU supports single-wire Background Debug Mode (BDM) via the BKGD pin. This allows full flash programming, register inspection, and breakpoint execution without JTAG hardware. The MC9S12D64MFU's BDM interface is fully documented in Section 6.5 of the Device User Guide and requires only a compatible BDM pod or debugger cable.
Can the MC9S12D64MFU operate with an external 25 MHz clock directly applied to EXTAL?
No - the MC9S12D64MFU does not support direct 25 MHz external clock input to EXTAL. The oscillator input accepts 4–8 MHz crystals or external clocks; higher bus frequencies are achieved via the internal PLL multiplier. Applying 25 MHz directly to EXTAL violates the oscillator input frequency specification and will prevent proper startup of the MC9S12D64MFU.
How many CAN message objects does the MSCAN module in the MC9S12D64MFU support?
The MSCAN module in the MC9S12D64MFU supports 16 individually configurable message objects, each with dedicated ID masking, direction control, and data length settings. This is confirmed in Section 19 of the Device User Guide and enables efficient handling of mixed standard and extended CAN frames without CPU polling overhead.
Is the Flash memory in the MC9S12D64MFU capable of emulating EEPROM functionality?
Yes, the MC9S12D64MFU's 64 KB Flash includes built-in EEPROM emulation routines in its on-chip bootloader (S12 LRAE), allowing byte-level read/write operations with wear leveling across designated sectors. This capability is documented in Appendix "NVM, Flash and EEPROM" and enables parameter storage without external EEPROM chips in the MC9S12D64MFU design.
MC9S12D64MFU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-QFP
- Series:
- HCS12
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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:
MC9S12D64MFU FAQ
1.How can I place an order for MC9S12D64MFU through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12D64MFU 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 MC9S12D64MFU reliable?
The price and inventory of MC9S12D64MFU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12D64MFU is usually 5 days.
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4.How is shipping managed for MC9S12D64MFU?
MC9S12D64MFU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12D64MFU 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 MC9S12D64MFU?
For technical support, including MC9S12D64MFU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12D64MFU requirements.
6.How does Aetrix verify that MC9S12D64MFU is sourced from the original manufacturer or authorized distributors?
All MC9S12D64MFU 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 MC9S12D64MFU meets industry standards.
7.What is the process for return or replacement of MC9S12D64MFU?
All MC9S12D64MFU units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12D64MFU, 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 MC9S12D64MFU part is unused and in its original packaging.
Return procedure for MC9S12D64MFU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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