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NXP Semiconductors MC9S12DJ128MFUE
- Part No.:
- MC9S12DJ128MFUE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
MC9S12DJ128MFUE.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,331
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Product details
Overview
MC9S12DJ128MFUE from Freescale Semiconductor is a 16-bit automotive microcontroller featuring 128KB Flash EEPROM, 8KB RAM, 2KB EEPROM, dual 10-bit 8-channel ADCs, two CAN 2.0A/B modules, J1850 BDLC interface, and an enhanced capture timer (ECT). It operates at up to 25MHz bus speed in single-chip mode and targets body control modules, gateway ECUs, and multiplexed vehicle networks.
For engineers reviewing the MC9S12DJ128MFUE datasheet, MC9S12DJ128MFUE pinout, MC9S12DJ128MFUE application, or MC9S12DJ128MFUE equivalent, this page delivers verified technical context, package mapping, real-world use cases, and validated alternative options for automotive embedded design and ECU scalability.
Technical Context
The MC9S12DJ128MFUE implements the CPU12 core with M68HC11 instruction set compatibility, HCS12 instruction queue, and enhanced indexed addressing. Its System Integration Module (SIM) manages clock generation via PLL, interrupt control, and multiplexed external bus interfacing in both 16-bit wide and 8-bit narrow modes.
It integrates two asynchronous SCI interfaces, two SPI modules (SPI0 and SPI1), I²C-bus, SAE J1850 BDLC, and MSCAN12 modules supporting software-compatible CAN 2.0A/B operation at up to 1 Mbps. Wake-up capability is supported via 22 interrupt-capable I/O lines across Ports H, J, P, and dedicated IRQ/XIRQ pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPU12 16-bit core with M68HC11 instruction set compatibility and HCS12 instruction queue |
| Flash Memory | 128KB Flash EEPROM with 16KB fixed sector and eight 16KB page windows for flexible firmware partitioning |
| RAM & EEPROM | 8KB RAM mappable to 8KB boundary; 2KB EEPROM mappable to 2KB boundary for nonvolatile parameter storage |
| CAN Interfaces | Two CAN 2.0A/B software-compatible modules (CAN0 and CAN4), each with five receive and three transmit buffers |
| ADC | Dual 10-bit 8-channel analog-to-digital converters with external trigger support and 5V input tolerance |
| Bus Interface | Multiplexed 16-bit address/data bus supporting 8-bit narrow mode for cost-optimized external memory interfacing |
| Operating Voltage | 5V I/O and A/D inputs with internal 5V-to-2.5V regulator supplying 2.5V logic core |
Pinout & Package
MC9S12DJ128MFUE is housed in an 80-pin QFP (case no. 841B) with 5V-tolerant I/O, 5V A/D inputs, and 2.5V internal logic supply. Pin assignments follow the MC9S12D-Family 80-pin QFP layout, including dedicated CAN, J1850, SCI, SPI, PWM, and ADC signal routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PM0 / PM1 | CAN0 RX/TX | Dedicated differential CAN transceiver interface for primary CAN network connection |
| PJ6 / PJ7 | CAN4 RX/TX | Secondary CAN interface routed via software-controlled port mapping for flexible network topology |
| PS0–PS3 | SCI0 RX/TX, SCI1 RX/TX | Two independent UART channels supporting diagnostic and inter-ECU communication |
| PP0–PP7 | PWM0–PWM7 | Eight-channel PWM generator with programmable period/duty cycle for motor and lamp control |
| PAD00–PAD07 | AN0–AN7 | Eight 10-bit ADC input channels with 5V input tolerance and external trigger capability |
| PE0–PE7 | IRQ, XIRQ, R/W, ECLK, MODA/B/C | Interrupt request, external interrupt, read/write control, and background debug mode signaling |
Key Features
| Feature | Design Value |
|---|---|
| Single-wire Background Debug (BDM) | On-chip debug interface enabling real-time code download, breakpoint insertion, and register inspection without external JTAG hardware |
| Phase-Locked Loop (PLL) | Configurable clock multiplier allowing dynamic adjustment of bus speed (up to 25MHz) and power consumption for thermal and performance optimization |
| Enhanced Capture Timer (ECT) | 16-bit main counter with 8 input-capture/output-compare channels, pulse accumulation, and programmable delay filtering for precise timing control |
| J1850 BDLC Module | SAE J1850 Variable Pulse Width compliant interface operating at 10.4 kbps for legacy vehicle diagnostics and data link communication |
| Wake-up from STOP/WAIT | 22 interrupt-capable I/O lines (Port H, Port J, Port P, IRQ/XIRQ) enabling low-power operation with rapid system recovery |
Applications
| Body Control Module (BCM) | Vehicle Gateway ECU |
|---|---|
Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC in modern passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing real-time control logic, CAN message routing, and PWM-driven actuator outputs. Use Value: Dual CAN modules enable simultaneous communication with powertrain and chassis networks while J1850 supports legacy diagnostic tools. | Use Scenario: Protocol translation and message filtering between high-speed CAN FD domains and legacy LIN/J1850 subsystems. IC Role / Device Role / Timing Role: Bridge controller managing time-synchronized frame forwarding, error handling, and wake-up coordination across heterogeneous buses. Use Value: Integrated dual CAN + J1850 + SCI allows seamless integration without external protocol translators, reducing BOM count and latency. |
| Seat Position Controller | Roof Module (Sunroof/Windows) |
Use Scenario: Precision motor control for multi-axis seat adjustment with position feedback and safety monitoring. IC Role / Device Role / Timing Role: Real-time motion controller using ECT for encoder capture and PWM for H-bridge drive signals. Use Value: Eight-channel 10-bit ADC reads potentiometer and current-sense inputs; 8 PWM channels support independent motor direction/speed control. | Use Scenario: Coordinated control of sunroof, power windows, and anti-pinch detection in premium vehicle roof systems. IC Role / Device Role / Timing Role: Safety-critical MCU performing analog sensor monitoring, PWM window motor drive, and CAN-based status reporting. Use Value: 5V-tolerant ADC inputs directly interface with hall-effect and voltage-divider sensors; internal 2.5V regulator ensures stable core operation under load transients. |
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 |
|---|---|---|---|
| MC9S12DG128CPVE | No J1850 BDLC module; identical Flash/RAM/EEPROM and dual CAN configuration | Suitable where legacy J1850 diagnostics are not required; lower pin-count variant lacks some I/O routing flexibility | Select when J1850 is unnecessary and cost-sensitive packaging is prioritized over diagnostic compatibility |
| S9S12G128F0MLH | NXP successor part with same memory, peripheral set, and pinout; includes enhanced BDM and updated errata handling | Drop-in replacement with extended lifecycle support and improved production test coverage for new designs | Prefer for new designs requiring long-term availability and NXP's ongoing automotive qualification roadmap |
Compared with MC9S12DJ128MFUE, MC9S12DG128CPVE removes J1850 but retains dual CAN and memory specs-ideal for non-diagnostic roles-while S9S12G128F0MLH offers identical functionality with modern manufacturing support and extended automotive qualification.
Availability
MC9S12DJ128MFUE is available at Aetrix Electronics and suitable for body control modules, vehicle gateways, seat position controllers, and roof modules requiring stable component supply across automotive production lifecycles.
Supply support for MC9S12DJ128MFUE 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
Freescale Semiconductor (now part of NXP Semiconductors) is a global leader in automotive and industrial microcontrollers, known for robust, AEC-Q100 qualified silicon and comprehensive development ecosystems.
The MC9S12D-Family was designed specifically for automotive multiplexing applications, enabling scalable ECU architectures through pin-compatible variants with configurable memory and peripheral options.
FAQ
What is the maximum bus speed supported by the MC9S12DJ128MFUE?
The MC9S12DJ128MFUE supports a maximum bus speed of 25MHz in single-chip mode, achieved via its on-chip PLL circuit. This corresponds to a 50MHz core-equivalent frequency and enables deterministic real-time execution for automotive control tasks. The bus speed is configurable through PLL setup registers and remains stable across the full operating temperature range of −40°C to +125°C.
Does the MC9S12DJ128MFUE include hardware debug support?
Yes, the MC9S12DJ128MFUE includes single-wire Background Debug Mode (BDM) with on-chip hardware breakpoints. This allows full in-circuit debugging-including code download, step execution, register inspection, and memory access-using only one dedicated pin (BKGD/MODC). No external JTAG adapter is required, simplifying development and field diagnostics for the MC9S12DJ128MFUE.
How many CAN modules does the MC9S12DJ128MFUE integrate, and what protocols do they support?
The MC9S12DJ128MFUE integrates two CAN modules: CAN0 and CAN4. Both are MSCAN12 peripherals supporting SAE J2411 and ISO 11898-1 compliant CAN 2.0A/B protocols at up to 1 Mbps. Each module provides five receive buffers, three transmit buffers, flexible identifier filtering, and dedicated interrupt channels for receive, transmit, error, and wake-up events.
What ADC resolution and channel count does the MC9S12DJ128MFUE provide?
The MC9S12DJ128MFUE features two independent 10-bit analog-to-digital converters (ATD0 and ATD1), each with eight input channels-totaling 16 ADC inputs. In 80-pin packages, eight channels (AN0–AN7) are available on PAD00–PAD07. Conversion is supported by external triggers and operates with 5V-tolerant inputs, making it suitable for direct connection to automotive sensors without level-shifting.
Is the MC9S12DJ128MFUE pin-compatible with other members of the MC9S12D-Family?
Yes, the MC9S12DJ128MFUE is fully pin-compatible with other 80-pin QFP variants in the MC9S12D-Family, including MC9S12DG128CPVE and MC9S12DT128CPVE. This enables hardware reuse across memory and peripheral configurations-such as swapping J1850-enabled DJ versions for DG or DT variants-without PCB redesign, supporting scalable ECU development and platform consolidation.
MC9S12DJ128MFUE 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:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 8K 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:
MC9S12DJ128MFUE FAQ
1.How can I place an order for MC9S12DJ128MFUE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12DJ128MFUE 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 MC9S12DJ128MFUE reliable?
The price and inventory of MC9S12DJ128MFUE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12DJ128MFUE is usually 5 days.
3.What payment methods are accepted for MC9S12DJ128MFUE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12DJ128MFUE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12DJ128MFUE?
MC9S12DJ128MFUE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12DJ128MFUE 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 MC9S12DJ128MFUE?
For technical support, including MC9S12DJ128MFUE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12DJ128MFUE requirements.
6.How does Aetrix verify that MC9S12DJ128MFUE is sourced from the original manufacturer or authorized distributors?
All MC9S12DJ128MFUE 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 MC9S12DJ128MFUE meets industry standards.
7.What is the process for return or replacement of MC9S12DJ128MFUE?
All MC9S12DJ128MFUE units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12DJ128MFUE, 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 MC9S12DJ128MFUE part is unused and in its original packaging.
Return procedure for MC9S12DJ128MFUE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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