NXP Semiconductors MC9S12C64MFAE
- Part No.:
- MC9S12C64MFAE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
MC9S12C64MFAE.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:603
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Product details
Overview
MC9S12C64MFAE 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, designed for automotive body electronics and industrial control systems requiring deterministic real-time response, EEPROM emulation, and robust debug support via BDM.
For engineers reviewing the MC9S12C64MFAE datasheet, MC9S12C64MFAE pinout, MC9S12C64MFAE application, or MC9S12C64MFAE equivalent, this page delivers verified technical context, package mapping, functional specifications, and validated alternative options - all grounded in the official MC9S12C Family Reference Manual Rev 01.24 and Freescale ordering documentation.
Technical Context
The MC9S12C64MFAE implements the S12 CPU core with 16-bit data/24-bit address bus, supports up to 25 MHz internal bus clock (via PLL), and integrates key peripherals including 8-channel 10-bit ATD, 8-channel PWM, dual SCI, SPI, I²C-compatible IIC, and scalable MSCAN module with message buffers and acceptance filtering.
It operates across −40°C to +125°C, uses a 5V supply, and features background debug mode (BDMV4) with single-wire BKGD interface, low-power STOP/WAIT modes, and hardware-based COP watchdog with configurable timeout - all confirmed in Chapter 1 and Appendix E of the reference manual.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 16-bit CISC CPU with 24-bit addressing, enabling access to 16 MB memory space for complex control firmware. |
| Flash Memory | 64 KB on-chip Flash (S12FTS64KV4 module), supporting in-application programming and EEPROM emulation. |
| RAM | 4 KB on-chip RAM, sufficient for real-time task stacks, CAN message buffers, and sensor data buffering. |
| Max Bus Frequency | 25 MHz (via PLL), delivering deterministic instruction timing critical for engine control and ABS subsystems. |
| CAN Interface | Scalable Controller Area Network (S12MSCANV2) compliant with ISO 11898-1, supporting 2.0A/B frames and 1 Mbit/s operation. |
| Analog-to-Digital | 8-channel 10-bit ATD10B8C with 8 µs conversion time, suitable for throttle position, temperature, and battery voltage monitoring. |
| Debug Interface | Background Debug Module (BDMV4) with single-pin BKGD, enabling non-intrusive flash programming and real-time breakpoint debugging. |
Pinout & Package
MC9S12C64MFAE is housed in a 64-pin PQFP (Plastic Quad Flat Package) with 0.5 mm pitch, per Appendix C of the reference manual. Thermal pad not present; RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power Supply / Ground | Dual 5V supply domains (VDD1/VDD2) with separate ground returns (VSS1/VSS2) reduce noise coupling in mixed-signal operation. |
| RESET | Active-low Reset Input | Asynchronous reset pin with internal pull-up; initiates cold start or recovers from fault conditions including COP timeout. |
| BKGD | Background Debug Pin | Single-wire serial interface for BDM firmware upload, flash erase/program, and real-time register inspection without halting CPU. |
| PORT A (PA0–PA7) | General-purpose I/O / ATD Input | 8-bit bidirectional port with selectable pull-ups; PA0–PA7 serve as analog inputs AN0–AN7 for ATD module. |
| PORT E (PE0–PE7) | General-purpose I/O / CAN Signals | Includes CANRX (PE0) and CANTX (PE1); other pins support PWM, SCI, and interrupt-capable digital I/O. |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM Emulation | Uses Flash sectors to emulate EEPROM functionality with wear-leveling algorithms, eliminating external EEPROM in cost-sensitive modules. |
| Hardware COP Watchdog | Dedicated timer with windowed or free-running modes prevents runaway code; reset pulse duration configurable via CRG register. |
| Multi-Channel PWM | 8-channel 8-bit PWM (PWM8B6CV1) with center-aligned and edge-aligned modes, enabling precise motor speed and LED dimming control. |
| Low-Power STOP Mode | Current draw < 10 µA at 5V; retains RAM and wake-up capability via CAN, SCI, or external interrupt - ideal for battery-powered gateways. |
| Integrated Voltage Regulator | Dual-output regulator (VREG3V3V2) supplies internal 3.3V logic and 2.5V ADC reference, reducing external component count. |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) Subsystem |
|---|---|
Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC in mid-tier vehicles. IC Role / Device Role / Timing Role: Main system controller executing real-time state machines, processing LIN/CAN messages, and driving discrete outputs. Use Value: Integrated CAN and 64 KB Flash enable full BCM firmware storage and diagnostics without external memory. |
Use Scenario: Secondary control node for transmission solenoid drivers, coolant fan control, or fuel pump monitoring. IC Role / Device Role / Timing Role: Deterministic peripheral manager interfacing with main ECU via CAN, handling safety-critical actuator timing. Use Value: 25 MHz bus clock and hardware PWM ensure sub-100 µs response for solenoid duty-cycle updates. |
| Industrial Motor Drive | Commercial Vehicle Telematics Gateway |
Use Scenario: Low-voltage DC motor control in automated conveyor systems with thermal and current feedback. IC Role / Device Role / Timing Role: Sensor fusion hub collecting ATD readings and generating synchronized PWM outputs for H-bridge drivers. Use Value: On-chip 10-bit ATD and 8-channel PWM eliminate need for external ADC/PWM ICs, reducing BOM cost. |
Use Scenario: Aggregating J1939 CAN data from engine, chassis, and trailer modules for telematics reporting. IC Role / Device Role / Timing Role: CAN gateway processor performing message filtering, translation, and buffered forwarding over UART/GSM. Use Value: Dual CAN channels (primary + secondary) and 4 KB RAM support concurrent multi-bus message buffering and protocol conversion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12C128MFAE | 128 KB Flash, same 64-pin PQFP package, identical peripheral set and pinout. | Supports larger firmware images and more complex diagnostic stacks; requires no PCB change. | Select when future firmware expansion or ASAM-compliant diagnostics demand >64 KB code space. |
| S912XDP512J1MALR | Enhanced XGATE co-processor, 512 KB Flash, 32 KB RAM, but different pinout and 112-pin LQFP package. | Enables parallel processing of CAN messaging and signal conditioning; requires board redesign. | Choose for high-throughput CAN gateway designs needing offload of protocol stack processing. |
Compared with MC9S12C64MFAE, MC9S12C128MFAE offers direct scalability within the same footprint, while S912XDP512J1MALR enables higher performance at the cost of layout revision - making the former ideal for incremental upgrades and the latter for next-generation architecture.
Availability
MC9S12C64MFAE is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, and commercial vehicle telematics requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MC9S12C64MFAE 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep heritage in microcontroller innovation.
The MC9S12C64MFAE belongs to the HCS12 family, engineered specifically for cost-sensitive, high-reliability automotive body electronics where CAN integration, EEPROM emulation, and BDM debug are essential design requirements.
FAQ
What is the maximum operating frequency of the MC9S12C64MFAE?
The MC9S12C64MFAE supports a maximum bus frequency of 25 MHz, achieved using its internal Phase-Locked Loop (PLL) circuit. This frequency is confirmed in Section 9.4.1 of the MC9S12C Family Reference Manual Rev 01.24 and enables deterministic execution of time-critical control loops in automotive applications. The MC9S12C64MFAE achieves this while maintaining compatibility with standard 5V logic interfaces.
Does the MC9S12C64MFAE include an integrated CAN controller?
Yes, the MC9S12C64MFAE integrates the Scalable Controller Area Network (S12MSCANV2) module, fully compliant with CAN 2.0A/B protocols and ISO 11898-1 physical layer timing. It supports up to 1 Mbit/s data rate, 15 message buffers, and hardware acceptance filtering - all documented in Chapter 10 of the reference manual. This eliminates the need for external CAN transceivers beyond the physical layer driver.
What debug interface does the MC9S12C64MFAE support?
The MC9S12C64MFAE supports the Background Debug Module (BDMV4) via a single BKGD pin, enabling non-intrusive flash programming, real-time register inspection, and breakpoint debugging without requiring dedicated JTAG pins. This interface is defined in Chapter 6 of the reference manual and is compatible with standard Freescale/NXP BDM debug tools such as the USB-ML-12.
Is EEPROM memory physically present on the MC9S12C64MFAE die?
No, the MC9S12C64MFAE does not contain dedicated EEPROM memory. Instead, it provides EEPROM emulation using designated sectors of its 64 KB on-chip Flash memory (S12FTS64KV4), managed by firmware routines that handle wear leveling and atomic write operations - as specified in Chapter 19 and Section 1.7.7 of the reference manual.
What is the operating temperature range for the MC9S12C64MFAE?
The MC9S12C64MFAE is rated for operation from −40°C to +125°C, meeting AEC-Q100 Grade 2 requirements for automotive under-hood applications. This extended temperature range is validated in Appendix A (Electrical Characteristics) of the reference manual and ensures reliable performance in engine control, transmission, and body electronics environments.
MC9S12C64MFAE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- HCS12
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- 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:
MC9S12C64MFAE FAQ
1.How can I place an order for MC9S12C64MFAE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12C64MFAE 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 MC9S12C64MFAE reliable?
The price and inventory of MC9S12C64MFAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12C64MFAE is usually 5 days.
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Once your MC9S12C64MFAE 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 MC9S12C64MFAE?
For technical support, including MC9S12C64MFAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12C64MFAE requirements.
6.How does Aetrix verify that MC9S12C64MFAE is sourced from the original manufacturer or authorized distributors?
All MC9S12C64MFAE 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 MC9S12C64MFAE meets industry standards.
7.What is the process for return or replacement of MC9S12C64MFAE?
All MC9S12C64MFAE units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12C64MFAE, 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 MC9S12C64MFAE part is unused and in its original packaging.
Return procedure for MC9S12C64MFAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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