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NXP Semiconductors MC9S12DJ128CFUE
- Part No.:
- MC9S12DJ128CFUE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
MC9S12DJ128CFUE.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:858
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Product details
Overview
MC9S12DJ128CFUE from Freescale Semiconductor is a 16-bit automotive microcontroller featuring 128KB Flash EEPROM, 8KB RAM, 2KB EEPROM, dual 10-bit ADCs (16-channel total), two CAN 2.0A/B modules, J1850 BDLC interface, and 8-channel PWM. It operates at up to 25MHz bus speed in single-chip mode and targets body control modules, lighting systems, and gateway ECUs requiring robust CAN-based multiplexing.
For engineers reviewing the MC9S12DJ128CFUE datasheet, MC9S12DJ128CFUE pinout, MC9S12DJ128CFUE application, or MC9S12DJ128CFUE equivalent, key selection criteria include its 112-pin LQFP package, dual CAN + J1850 support, 25MHz bus speed, 128KB Flash memory mapping, and background debug (BDM) capability for automotive ECU development.
Technical Context
The MC9S12DJ128CFUE 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 multiplier, interrupt control, and multiplexed external bus interface supporting both 16-bit wide and 8-bit narrow modes.
Memory architecture includes configurable Flash page windows, mappable 2KB EEPROM aligned to 2K boundaries, and 8KB RAM alignable to 8K boundaries. Peripheral routing is software-configurable - CAN0/CAN4 share pins with J1850 and IIC, and SPI2 can be remapped to PH7:4 in 112-pin packages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 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 | 8KB on-chip RAM mappable to any 8KB boundary for optimized data buffering in real-time control loops |
| ADC | Dual 10-bit analog-to-digital converters, each with 8 channels (16 total), supporting external conversion triggers |
| CAN Interfaces | Two CAN 2.0A/B software-compatible modules, each with five receive and three transmit buffers and programmable identifier filters |
| J1850 Interface | SAE J1850 BDLC module supporting 10.4 kbps Variable Pulse Width format and 4x receive mode for legacy vehicle diagnostics |
| Package | 112-pin LQFP (case 987), 20 mm × 20 mm footprint with 0.65 mm pitch and 2.45 mm max height |
Pinout & Package
MC9S12DJ128CFUE uses a 112-pin LQFP package (case number 987) with 0.65 mm lead pitch, 20 mm × 20 mm body size, and 2.45 mm maximum height. Pin functions are fully defined in Freescale's MC9S12D-Family documentation, with dedicated signal groups for multiplexed address/data bus, CAN/J1850/IIC shared pins, and peripheral routing flexibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PM0/PM1 | CAN0 RX/TX | Dedicated differential CAN transceiver interface for primary CAN network; supports 1 Mbps operation |
| PJ6/PJ7 | CAN4 RX/TX | Secondary CAN channel sharing pins with IIC SDA/SCL; software-routable to alternate pins PM5:4 or PM7:6 |
| PS0–PS3 | SCI0 RX/TX, SCI1 RX/TX | Two independent asynchronous serial interfaces for diagnostic logging and inter-ECU communication |
| PP0–PP7 | PWM0–PWM7 / SPI2 signals | Eight-channel PWM output with center/left-aligned modes; also serves as SPI2 MOSI/MISO/SCK/SS when enabled |
| PA0–PA7 | ADDR8–ADDR15 / DATA8–DATA15 | Multiplexed 8-bit address/data bus for expanded memory interfacing in narrow mode |
| VDDA/VSSA/VRH/VRL | Analog power & reference | Separate 5V analog supply domain with high-precision voltage references for stable 10-bit ADC conversions |
Key Features
| Feature | Design Value |
|---|---|
| Single-wire BDM debug | Enables full background debugging, flash programming, and hardware breakpoint support using only BKGD pin |
| Software-routed peripherals | CAN0, CAN4, and SPI2 pins can be reassigned via register configuration to avoid I/O conflicts in dense PCB layouts |
| Low-power STOP/WAIT wake-up | 22 interrupt-capable I/O lines (Port H, Port P, Port J, IRQ/XIRQ) allow selective wake-up from low-power states |
| PLL clock multiplier | Generates internal bus clocks up to 25 MHz from 0.5–16 MHz crystal input, enabling performance/power trade-offs |
| 5V-tolerant I/O | All digital I/O pins accept 5V inputs and drive 5V logic levels, simplifying interface with legacy automotive sensors and actuators |
Applications
| Body Control Module (BCM) | Lighting Control Unit (LCU) |
|---|---|
Use Scenario: Centralized management of door locks, window lifts, mirrors, and interior lighting in modern vehicles. IC Role / Device Role / Timing Role: Main controller executing real-time PWM dimming, CAN message routing between LIN slaves and high-speed CAN backbone, and J1850 diagnostics. Use Value: Dual CAN modules enable concurrent communication with powertrain and infotainment networks while J1850 supports legacy dealer scan tools. | Use Scenario: Adaptive headlight aiming, LED matrix control, and rear lamp sequencing with thermal monitoring. IC Role / Device Role / Timing Role: High-resolution PWM generator (8 channels, 10-bit duty control) with synchronized ADC sampling for current sensing and temperature feedback. Use Value: 10-bit ADC resolution and 8-channel PWM allow precise current regulation across multiple LED strings without external drivers. |
| Gateway ECU | Seat Control Module |
Use Scenario: Protocol translation and message filtering between CAN A/B, LIN, and J1850 networks in multi-domain vehicle architectures. IC Role / Device Role / Timing Role: Message router with dual CAN controllers handling separate physical networks and J1850 interface for service bay connectivity. Use Value: Software-routable CAN pins permit layout optimization when integrating multiple transceivers on compact gateway PCBs. | Use Scenario: Motorized seat position memory, heating element control, and occupancy detection via analog sensor fusion. IC Role / Device Role / Timing Role: Mixed-signal controller acquiring thermistor and potentiometer data via dual 10-bit ADCs while driving H-bridge drivers via PWM outputs. Use Value: 16-channel ADC support enables simultaneous sampling of seat position, temperature, and pressure sensors within one conversion sequence. |
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 |
|---|---|---|---|
| MC9S12DG128CFUE | No J1850 BDLC module; identical Flash/RAM/ADC/CAN count and 112-pin LQFP package | Suitable where J1850 diagnostics are not required, e.g., newer OEM platforms using UDS over CAN | Select MC9S12DG128CFUE to reduce cost and code footprint when J1850 is unused |
| S912XDP512J1MAL | Enhanced XGATE co-processor, 512KB Flash, 32KB RAM, same peripheral set plus additional timers and DMA | Targeted at higher-complexity gateways or ADAS pre-processing where offloading interrupts improves determinism | Choose S912XDP512J1MAL when real-time response time < 1µs or >256KB code size is required |
Compared with MC9S12DJ128CFUE, MC9S12DG128CFUE removes J1850 functionality but retains identical CAN, ADC, and PWM capabilities for cost-sensitive non-diagnostic roles; S912XDP512J1MAL adds XGATE acceleration and larger memory for scalable next-generation designs, requiring no PCB changes due to pin-compatible 112LQFP packaging.
Availability
MC9S12DJ128CFUE is available at Aetrix Electronics and suitable for automotive body electronics, lighting control, gateway ECUs, and seat control modules requiring stable component supply across extended temperature ranges (−40°C to +125°C).
Supply support for MC9S12DJ128CFUE 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 fabless semiconductor company specializing in automotive, industrial, and networking processors and microcontrollers.
The MC9S12D-Family was designed specifically for automotive multiplexing applications, emphasizing CAN/J1850 interoperability, robust I/O tolerance, and scalable memory/peripheral configurations for ECU consolidation.
FAQ
What is the maximum bus speed supported by the MC9S12DJ128CFUE?
The MC9S12DJ128CFUE supports a maximum bus speed of 25 MHz in single-chip mode, corresponding to a 50 MHz core-equivalent frequency. In expanded bus modes, the maximum bus speed is 20 MHz. This timing is validated across the full −40°C to +125°C ambient operating range and relies on the integrated PLL clock multiplier configured with an external 8 MHz crystal.
Does the MC9S12DJ128CFUE include a J1850 interface?
Yes, the MC9S12DJ128CFUE integrates a SAE J1850 BDLC module supporting 10.4 kbps Variable Pulse Width format, byte-level transmit/receive, and 4x receive mode. This enables direct compatibility with legacy vehicle diagnostic tools and service bay equipment without external protocol translators.
How many CAN modules does the MC9S12DJ128CFUE support?
The MC9S12DJ128CFUE supports two CAN 2.0A/B software-compatible modules - CAN0 and CAN4. CAN0 uses dedicated pins PM0/PM1, while CAN4 shares pins PJ6/PJ7 with IIC and can be software-routed to PM5:4 or PM7:6 to resolve pin conflicts in complex designs.
What package type is used for the MC9S12DJ128CFUE?
The MC9S12DJ128CFUE is supplied in a 112-pin LQFP package (case number 987), measuring 20 mm × 20 mm with 0.65 mm lead pitch and 2.45 mm maximum height. This package provides full access to all multiplexed bus signals, dual CAN transceivers, J1850, and peripheral I/O required for automotive ECU implementations.
Is background debug (BDM) supported on the MC9S12DJ128CFUE?
Yes, the MC9S12DJ128CFUE features single-wire background debug (BDM) mode using the MODC/TAGHI/BKGD pin (Pin 57 in 112LQFP). This enables non-intrusive flash programming, real-time variable inspection, and hardware breakpoints during development and field calibration without halting system operation.
MC9S12DJ128CFUE 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, 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12DJ128CFUE FAQ
1.How can I place an order for MC9S12DJ128CFUE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12DJ128CFUE 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 MC9S12DJ128CFUE reliable?
The price and inventory of MC9S12DJ128CFUE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12DJ128CFUE is usually 5 days.
3.What payment methods are accepted for MC9S12DJ128CFUE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12DJ128CFUE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12DJ128CFUE?
MC9S12DJ128CFUE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12DJ128CFUE 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 MC9S12DJ128CFUE?
For technical support, including MC9S12DJ128CFUE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12DJ128CFUE requirements.
6.How does Aetrix verify that MC9S12DJ128CFUE is sourced from the original manufacturer or authorized distributors?
All MC9S12DJ128CFUE 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 MC9S12DJ128CFUE meets industry standards.
7.What is the process for return or replacement of MC9S12DJ128CFUE?
All MC9S12DJ128CFUE units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12DJ128CFUE, 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 MC9S12DJ128CFUE part is unused and in its original packaging.
Return procedure for MC9S12DJ128CFUE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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