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NXP Semiconductors MC9S12C64MFA
- Part No.:
- MC9S12C64MFA
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
MC9S12C64MFA.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,155
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Product details
Overview
MC9S12C64MFA from NXP (formerly Freescale) is a 16-bit HCS12 microcontroller featuring 64 KB on-chip Flash, 4 KB RAM, and integrated CAN 2.0A/B controller, PWM, 10-bit 8-channel ADC, and BDM debug interface. It operates at up to 25 MHz core frequency with internal PLL, supports automotive-grade temperature range (−40°C to +105°C), and targets engine control, body electronics, and industrial motor management.
For engineers reviewing the MC9S12C64MFA datasheet, MC9S12C64MFA pinout, MC9S12C64MFA application, or MC9S12C64MFA equivalent, key selection criteria include its 80-pin LQFP package, S12 CPU core compatibility, CAN bus timing compliance, Flash endurance (10k write/erase cycles), and legacy support for BDM-based programming in production and field updates.
Technical Context
The MC9S12C64MFA implements the S12 CPU core with 16-bit data path, Harvard architecture, and 24-bit addressing. It integrates a scalable CAN controller (S12MSCANV2) supporting both standard and extended frames, plus a 16-bit timer module (TIM16B8CV1) with input capture, output compare, and PWM generation capabilities.
Its clock system includes a PLL (CRGV4) with configurable multiplication factor (x1–x32), selectable oscillator modes (crystal/resonator/external clock), and multiple low-power modes (WAIT, STOP, Pseudo-STOP). The device uses a dual-voltage regulator (VREG3V3V2) to supply internal 3.3 V logic from 5 V VDD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 16-bit CPU with 24-bit address bus and 16 MB linear memory map |
| Flash Memory | 64 KB on-chip Flash (S12FTS64KV4) with 10,000 erase/write cycles and 100-year data retention |
| RAM | 4 KB on-chip SRAM, battery-backed option available via external circuitry |
| CAN Interface | One S12MSCANV2 module compliant with ISO 11898-1, supporting bit rates up to 1 Mbps |
| ADC | 10-bit ATD10B8C with 8 input channels, 8 µs conversion time, and programmable sample-and-hold |
| Package | 80-pin LQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 |
| Operating Temperature | −40°C to +105°C - qualified for under-hood automotive applications per AEC-Q100 Grade 2 |
Pinout & Package
MC9S12C64MFA is housed in an 80-pin LQFP package with exposed thermal pad. Pin functions are defined per MC9S12C Family Reference Manual Rev 01.24, including dedicated CANH/CANL differential pair, BKGD debug pin, and multiplexed port pins (Port A–P) supporting GPIO, analog input, PWM output, and serial interfaces.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BKGD | Background Debug Interface | Single-wire BDM communication channel for flash programming and real-time debugging |
| CANH / CANL | CAN Bus Differential Pair | Direct connection to ISO 11898-compliant transceiver; requires external termination resistor (120 Ω) |
| RESET | Active-Low Reset Input | Asynchronous reset assertion clears CPU registers and initiates boot vector fetch from $FFFE–$FFFF |
| VDD / VSS | Power Supply / Ground | Separate analog (VDDA/VSSA) and digital (VDD/VSS) rails required; decoupling capacitors mandatory per layout guidelines |
| XTAL / EXTAL | Crystal Oscillator Inputs | Supports 4–8 MHz crystal; internal oscillator circuit enables self-clock mode if external source fails |
Key Features
| Feature | Design Value |
|---|---|
| Scalable CAN Controller | Full CAN 2.0A/B protocol stack with 16 message buffers, programmable acceptance filtering, and error handling interrupt |
| PWM Generation | 8-channel 16-bit PWM (PWM8B6CV1) with center-aligned and edge-aligned modes, dead-time insertion, and fault protection |
| Low-Power Operation | Three power-saving modes (WAIT, STOP, Pseudo-STOP); STOP mode draws <10 µA typical with RTC active |
| On-Chip Voltage Regulator | VREG3V3V2 provides regulated 3.3 V for internal logic from 5 V VDD; eliminates need for external LDO in most designs |
| Hardware Security | Flash security byte prevents unauthorized read-out; BDM access disabled after secure lock unless mass erase performed |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time monitoring of throttle position, coolant temperature, and oxygen sensor signals in gasoline engine management. IC Role / Device Role / Timing Role: Primary MCU executing closed-loop fuel injection and ignition timing algorithms with sub-millisecond interrupt latency. Use Value: Integrated 10-bit ADC and CAN interface reduce BOM count; 64 KB Flash accommodates calibration tables and diagnostics firmware. |
Use Scenario: Centralized control of door locks, lighting, wipers, and HVAC in mid-tier passenger vehicles. IC Role / Device Role / Timing Role: CAN node coordinating with instrument cluster and gateway; manages timed relay actuation and PWM dimming. Use Value: 80-pin LQFP provides sufficient I/O for discrete drivers and sensors; −40°C to +105°C rating ensures reliability in cabin environments. |
| Industrial Motor Drive | Off-Highway Vehicle Telematics |
Use Scenario: Closed-loop speed and torque control of 3-phase BLDC motors in agricultural pumps and conveyors. IC Role / Device Role / Timing Role: Real-time PWM generation with hardware dead-time control and overcurrent fault detection via ADC sampling. Use Value: TIM16B8CV1 timer supports precise phase-shifted PWM outputs; CAN bus enables integration into J1939 networks. |
Use Scenario: Data acquisition and wireless transmission of GPS, engine hours, and diagnostic trouble codes from construction equipment. IC Role / Device Role / Timing Role: CAN-to-serial bridge with flash-resident firmware storing event logs and configuration parameters. Use Value: 64 KB Flash stores firmware plus 2 KB EEPROM emulation area; BDM interface enables field firmware updates without disassembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12C128MFA | 128 KB Flash, same 80-pin LQFP package and peripheral set; identical pinout and register mapping | Required where larger code footprint or future firmware expansion is anticipated | Select when >64 KB Flash is needed without changing PCB layout or driver software |
| S912XDP512J1MALR | Enhanced XGATE co-processor, 512 KB Flash, 32 KB RAM; different pinout (112-pin MAPBGA) and voltage requirements (3.3 V only) | Targeted at next-generation ECU platforms requiring higher throughput and multi-threaded ISR handling | Choose for new designs needing performance headroom; not drop-in compatible due to package and power differences |
Compared with MC9S12C64MFA, MC9S12C128MFA offers direct scalability within the same footprint, while S912XDP512J1MALR delivers significantly higher compute capability but requires full hardware redesign and toolchain migration.
Availability
MC9S12C64MFA is available at Aetrix Electronics and suitable for automotive engine control, industrial motor drives, and off-highway telematics requiring stable component supply across extended product lifecycles.
Supply support for MC9S12C64MFA 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 applications.
The MC9S12C64MFA belongs to the legacy HCS12 family, designed specifically for cost-sensitive, high-reliability automotive control applications where long-term availability and proven qualification are critical.
FAQ
What is the maximum operating frequency of the MC9S12C64MFA?
The MC9S12C64MFA supports a maximum core frequency of 25 MHz, achieved using the internal PLL with configurable multiplication factor (e.g., 8 MHz crystal × 3.125 = 25 MHz). This frequency is sustained across the full −40°C to +105°C temperature range and meets AEC-Q100 Grade 2 requirements for automotive use. The MC9S12C64MFA's timing specifications are validated at this speed in the reference manual.
Does the MC9S12C64MFA support CAN FD?
No, the MC9S12C64MFA implements the S12MSCANV2 module compliant only with CAN 2.0A/B (ISO 11898-1), supporting bit rates up to 1 Mbps. It does not support CAN FD features such as flexible data-rate, extended data length, or CRC enhancements. For CAN FD, newer families like S32K1xx or MPC57xx are required. The MC9S12C64MFA remains widely used in legacy CAN networks where 2.0B compatibility is sufficient.
How is flash programming performed on the MC9S12C64MFA?
Flash programming on the MC9S12C64MFA is performed via the single-wire Background Debug Mode (BDM) interface using standard Freescale/NXP BDM tools (e.g., USB-ML-PPS or Cyclone Pro). The process requires no external bootloader - the on-chip BDM firmware handles erase, program, and verify operations directly. The MC9S12C64MFA supports in-circuit programming even after soldering, provided BKGD and RESET pins are accessible.
Is the MC9S12C64MFA still in active production?
Yes, the MC9S12C64MFA remains in active production and supported by NXP with documented lifecycle status through at least 2027. NXP maintains long-term supply commitments for automotive-qualified parts, and Aetrix Electronics carries authorized inventory with full traceability. The MC9S12C64MFA benefits from mature manufacturing processes and extensive design-in history across Tier 1 suppliers.
What development tools are compatible with the MC9S12C64MFA?
The MC9S12C64MFA is fully supported by CodeWarrior Development Studio for HCS12 (v5.1+), S32DS for S12 (legacy mode), and open-source tools like GNU GCC for S12 with appropriate BDM drivers. Hardware debuggers include P&E Micro's USB-ML-PPS and Segger J-Link with BDM add-on. All tools interface directly with the BKGD pin, and the MC9S12C64MFA's register map is natively recognized in these environments.
MC9S12C64MFA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- HCS12
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- HCS12
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- CANbus, EBI/EMI, SCI, SPI
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 31
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.35V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12C64MFA FAQ
1.How can I place an order for MC9S12C64MFA through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12C64MFA 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 MC9S12C64MFA reliable?
The price and inventory of MC9S12C64MFA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12C64MFA is usually 5 days.
3.What payment methods are accepted for MC9S12C64MFA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12C64MFA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12C64MFA?
MC9S12C64MFA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12C64MFA 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 MC9S12C64MFA?
For technical support, including MC9S12C64MFA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12C64MFA requirements.
6.How does Aetrix verify that MC9S12C64MFA is sourced from the original manufacturer or authorized distributors?
All MC9S12C64MFA 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 MC9S12C64MFA meets industry standards.
7.What is the process for return or replacement of MC9S12C64MFA?
All MC9S12C64MFA units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12C64MFA, 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 MC9S12C64MFA part is unused and in its original packaging.
Return procedure for MC9S12C64MFA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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