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NXP Semiconductors MC9S12C128MFUE
- Part No.:
- MC9S12C128MFUE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
MC9S12C128MFUE.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,260
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Product details
Overview
MC9S12C128MFUE from NXP (formerly Freescale) is a 16-bit HCS12 microcontroller with 128 KB on-chip Flash, 8 KB RAM, and integrated CAN 2.0B 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 MC9S12C128MFUE datasheet, MC9S12C128MFUE pinout, MC9S12C128MFUE application, or MC9S12C128MFUE equivalent, key selection criteria include its 50 MHz bus speed, 10-bit 8-channel ADC with 7 µs conversion time, 8-channel PWM with center-aligned mode, and compatibility with S12X development tools and legacy HCS12 software ecosystems.
Technical Context
The MC9S12C128MFUE implements the S12 CPU core with 16-bit data/24-bit address architecture, executing instructions at up to 25 MHz core frequency (50 MHz bus clock via PLL). It integrates a scalable CAN 2.0B controller (S12MSCANV2), 16-bit timer module (TIM16B8CV1), and background debug module (BDMV4) supporting single-wire serial debugging without halting execution.
Its memory subsystem includes 128 KB of user-programmable Flash (S12FTS128K1V1), 8 KB of SRAM, and 2 KB of EEPROM-emulated data storage in Flash. Power management supports RUN, WAIT, and STOP modes with wake-up via CAN, timer, or external interrupt - critical for low-power automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 16-bit CPU with 24-bit addressing; enables deterministic real-time control and efficient C code execution in resource-constrained embedded systems. |
| Flash Memory | 128 KB on-chip Flash (S12FTS128K1V1); supports in-circuit programming, EEPROM emulation, and secure flash protection. |
| RAM | 8 KB on-chip SRAM; sufficient for real-time task stacks, CAN message buffers, and sensor data processing without external memory. |
| ADC | 10-bit, 8-channel ATD10B8C with 7 µs conversion time; provides high-resolution analog sensing for battery monitoring, temperature, and position feedback. |
| CAN Interface | Scalable Controller Area Network (S12MSCANV2), compliant with ISO 11898-1; supports full CAN 2.0B protocol with 15 message objects and hardware filtering. |
| PWM | 8-channel 16-bit PWM8B6CV1 with center-aligned and edge-aligned modes; enables precise motor control and LED dimming in automotive lighting and HVAC actuators. |
| Debug Interface | Background Debug Module (BDMV4) with single-wire BKGD pin; allows non-intrusive firmware download, breakpoint setting, and live register inspection during operation. |
Pinout & Package
MC9S12C128MFUE is housed in a 112-pin LQFP (16 × 16 mm, 0.4 mm pitch) package with exposed thermal pad. Pin functions are defined per Chapter 1.3.1 ("Device Pinouts") and Appendix C of the MC9S12C Family Reference Manual Rev 01.24.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 5 V supply domains (VDDA/VSSA for analog, VDD/VSS for digital) ensure noise isolation for ADC and CAN transceivers. |
| BKGD | Background debug interface | Single-wire serial interface for programming and real-time debugging; requires pull-up resistor and no external transceiver. |
| RX/TX (CANH/CANL) | CAN physical layer interface | Direct connection to external CAN transceiver (e.g., TJA1042); supports fault-tolerant differential signaling per ISO 11898. |
| AD0–AD7 | Analog input channels | 8 multiplexed 10-bit ADC inputs; configurable as general-purpose I/O when not used for analog acquisition. |
| PT0–PT7 | Timer I/O pins | 8 dedicated pins for PWM output, input capture, and output compare; support programmable slew rate and pull-up/pull-down. |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM Emulation | 2 KB of Flash configured as wear-levelled EEPROM using built-in routines; eliminates need for external serial EEPROM in calibration storage. |
| Low-Power STOP Mode | Current draw < 10 µA with CAN wake-up enabled; meets automotive module sleep current requirements for always-on gateways and body controllers. |
| Hardware CAN Filtering | 15 message object buffers with ID masking and acceptance filtering in hardware; reduces CPU load during high-bandwidth CAN traffic (e.g., LIN gateway bridging). |
| Real-Time Interrupt (RTI) | Programmable periodic interrupt source (1 ms to 1 s) derived from internal oscillator; enables deterministic scheduler ticks without external timer IC. |
| Security Locking | Flash security byte prevents unauthorized read-out of firmware; supports mass erase only after security bypass sequence via BDM. |
Applications
| Automotive Door Module | Industrial Motor Control |
|---|---|
Use Scenario: Centralized control of power windows, locks, mirrors, and interior lighting in vehicle door assemblies. IC Role / Device Role / Timing Role: Primary MCU managing LIN slave communication, PWM-driven mirror motors, and analog sensor inputs (e.g., window position potentiometers). Use Value: Integrated CAN 2.0B enables direct communication with body control module; 128 KB Flash accommodates multi-variant firmware with diagnostics and bootloader. |
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and conveyor drives. IC Role / Device Role / Timing Role: Real-time motor controller executing FOC algorithms, sampling current sensors via 10-bit ADC, and generating 8-channel complementary PWM outputs. Use Value: 7 µs ADC conversion and deterministic 50 MHz bus timing ensure sub-100 µs control loop latency; BDM debug support accelerates field firmware updates. |
| Truck Trailer ABS Gateway | Smart Lighting Controller |
Use Scenario: Bridging J1939 CAN networks between tractor and trailer while monitoring wheel speed sensors and brake status. IC Role / Device Role / Timing Role: Dual-CAN node (primary and secondary CAN ports) with message routing, error logging, and wake-on-CAN functionality. Use Value: Hardware CAN filtering and 15 message objects handle concurrent J1939 and trailer-specific protocols; STOP-mode wake-up ensures fast network rejoin after ignition off. |
Use Scenario: Adaptive LED headlight control with ambient light sensing, thermal monitoring, and dynamic beam shaping. IC Role / Device Role / Timing Role: System manager coordinating I²C-connected ambient sensor, PWM-driven LED strings, and CAN-based vehicle network commands. Use Value: 8-channel PWM supports independent dimming of multiple LED zones; 10-bit ADC resolves fine-grained lux and temperature changes for closed-loop brightness compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XDP512 | Enhanced S12X core (up to 80 MHz bus), 512 KB Flash, XGATE co-processor; larger footprint (144-pin LQFP) and higher cost. | Required for complex real-time tasks like CAN FD gatewaying or multi-sensor fusion where XGATE offloads CPU. | Select when >128 KB Flash, CAN FD, or parallel processing capability is needed; not drop-in compatible due to pin count and peripheral register differences. |
| S9S12G128F0MLH | S12G derivative with same 128 KB Flash but updated peripherals (12-bit ADC, enhanced BDM), 48 MHz max bus speed, and smaller 64-pin QFP package. | Preferred for new designs targeting lower BOM cost, reduced PCB area, and improved ADC resolution - but lacks native CAN 2.0B (requires external transceiver + software stack). | Choose for cost-sensitive, space-constrained applications where CAN is optional or implemented externally; migration requires pinout and driver adaptation. |
Compared with MC9S12C128MFUE, MC9S12XDP512 offers higher performance and memory at increased complexity and cost, while S9S12G128F0MLH trades CAN integration and legacy toolchain compatibility for compactness and modern peripheral features - making MC9S12C128MFUE optimal for established automotive body-control designs requiring proven reliability and minimal redesign effort.
Availability
MC9S12C128MFUE is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor controllers, and heavy-duty vehicle gateway modules requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant microcontrollers.
Supply support for MC9S12C128MFUE 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, with deep expertise in microcontroller architectures and automotive qualification standards.
The MC9S12C128MFUE belongs to NXP's legacy HCS12 family, engineered specifically for cost-effective, high-reliability automotive body electronics and industrial control systems demanding CAN 2.0B, deterministic real-time behavior, and long-lifecycle support.
FAQ
What is the maximum bus clock frequency supported by the MC9S12C128MFUE?
The MC9S12C128MFUE supports a maximum bus clock frequency of 50 MHz, achieved via its internal Phase-Locked Loop (PLL) operating from an external crystal or ceramic resonator. This frequency enables deterministic real-time execution of automotive control algorithms and satisfies timing requirements for CAN 2.0B bit rates up to 1 Mbps. The S12 CPU core runs at half the bus clock (25 MHz), maintaining backward compatibility with legacy HCS12 software.
Does the MC9S12C128MFUE include hardware support for EEPROM emulation?
Yes, the MC9S12C128MFUE includes dedicated firmware routines and Flash memory partitioning to emulate up to 2 KB of EEPROM functionality within its 128 KB on-chip Flash. This eliminates the need for external serial EEPROM in applications requiring non-volatile storage of calibration data, odometer values, or configuration settings - reducing BOM cost and board space while ensuring write endurance through built-in wear leveling.
Can the MC9S12C128MFUE enter low-power STOP mode and wake up via CAN activity?
Yes, the MC9S12C128MFUE supports STOP mode with current consumption below 10 µA and can be woken by CAN bus activity, including remote frame reception or dominant bit detection on the CAN RX line. This capability is essential for automotive modules that must remain responsive to network commands while meeting strict sleep-current specifications defined in OEM requirements such as Ford WDS or GM World Wide Engineering Standards.
What debug interface does the MC9S12C128MFUE use, and is external hardware required?
The MC9S12C128MFUE uses the Background Debug Module (BDMV4) accessed via a single BKGD pin, requiring only a pull-up resistor and no external level shifter or transceiver. Standard BDM interfaces (e.g., P&E Multilink or OSJTAG) connect directly to this pin for non-intrusive firmware download, live register inspection, and breakpoint debugging - enabling rapid development and field firmware updates without modifying the target hardware design.
Is the MC9S12C128MFUE pin-compatible with other members of the MC9S12C family?
No, the MC9S12C128MFUE is not universally pin-compatible across the MC9S12C family. While it shares the 112-pin LQFP package with MC9S12C64MFUE and MC9S12C32MFUE, pin assignments for peripheral functions (e.g., CAN, PWM, ADC) differ between variants. Designers must consult the specific signal description tables in the MC9S12C Family Reference Manual Rev 01.24 to verify pin mapping before substituting part numbers - especially for CANH/CANL, BKGD, and ADx signals.
MC9S12C128MFUE 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, EBI/EMI, SCI, SPI
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 60
- Program Memory Size:
- 128KB (128K 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:
MC9S12C128MFUE FAQ
1.How can I place an order for MC9S12C128MFUE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12C128MFUE 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 MC9S12C128MFUE reliable?
The price and inventory of MC9S12C128MFUE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12C128MFUE is usually 5 days.
3.What payment methods are accepted for MC9S12C128MFUE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12C128MFUE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12C128MFUE?
MC9S12C128MFUE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12C128MFUE 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 MC9S12C128MFUE?
For technical support, including MC9S12C128MFUE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12C128MFUE requirements.
6.How does Aetrix verify that MC9S12C128MFUE is sourced from the original manufacturer or authorized distributors?
All MC9S12C128MFUE 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 MC9S12C128MFUE meets industry standards.
7.What is the process for return or replacement of MC9S12C128MFUE?
All MC9S12C128MFUE units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12C128MFUE, 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 MC9S12C128MFUE part is unused and in its original packaging.
Return procedure for MC9S12C128MFUE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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