NXP Semiconductors MC9S12DG128VFUE
- Part No.:
- MC9S12DG128VFUE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
MC9S12DG128VFUE.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80QFP
- Quantity:
- Payment:

- Shipping:

Inventory:3,276
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Product details
Overview
MC9S12DG128VFUE 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. It operates at up to 25 MHz bus frequency, supports 5 V I/O, and features 10-bit ATD converter with 16 channels, 8-channel PWM, and background debug module (BDM). It targets automotive body control modules requiring robust real-time control and CAN network integration.
For engineers reviewing the MC9S12DG128VFUE datasheet, MC9S12DG128VFUE pinout, MC9S12DG128VFUE application, or MC9S12DG128VFUE equivalent, key selection criteria include its 112-pin LQFP package, 5 V tolerant I/O, CAN0/1 support, PLL-based clock generation, and AEC-Q100 qualification for automotive use.
Technical Context
The MC9S12DG128VFUE implements the HCS12 CPU core with 16-bit data path, 24-bit address space, and enhanced BDM interface supporting in-circuit debugging. Its CRG block integrates oscillator, PLL, and reset logic, enabling programmable bus frequencies from 0.25 MHz to 25 MHz using external crystal or ceramic resonator.
It includes dual CAN controllers (MSCAN0 and MSCAN1), two asynchronous serial interfaces (SCI0/SCI1), one synchronous serial interface (SPI), and an 8-channel 16-bit enhanced capture timer (ECT) with input capture, output compare, and pulse-width modulation capabilities.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS12 16-bit CPU with 24-bit addressing and 1.75 MB/s instruction throughput at 25 MHz bus speed |
| Memory | 128 KB Flash (programmable in-system), 8 KB RAM, 2 KB EEPROM - enables firmware updates without external memory |
| Bus Frequency | Up to 25 MHz - determines maximum peripheral timing and real-time response latency |
| I/O Voltage | 5 V tolerant - simplifies interface with legacy automotive sensors and actuators |
| CAN Interfaces | Two independent MSCAN modules compliant with ISO 11898-1 (CAN 2.0B) - supports dual-network vehicle architectures |
| ADC | 10-bit ATD with 16 input channels and configurable sample-and-hold - suitable for analog sensor monitoring (e.g., temperature, pressure) |
| PWM | 8-channel 16-bit PWM with center-aligned and edge-aligned modes - used for motor control and LED dimming |
Pinout & Package
MC9S12DG128VFUE is housed in a 112-pin LQFP (lead-free, RoHS-compliant) package with 0.4 mm pitch and 20 × 20 mm body size (case number 987). Thermal resistance θJA is 32 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EXTAL / XTAL | Oscillator input/output | Connects to external crystal or ceramic resonator (4–8 MHz); enables precise clock source for CAN timing compliance |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; initiates cold start and recovers from fault conditions |
| BKGD / TAGHI | Background debug pin | Single-wire BDM interface for programming and real-time debugging without halting CPU execution |
| PJ6 / RXCAN0, PJ7 / TXCAN0 | CAN0 transceiver interface | Dedicated differential CAN bus pins supporting 1 Mbit/s operation per ISO 11898-2 physical layer |
| PA[7:0], PB[7:0] | Multiplexed address/data bus | Supports external memory expansion up to 1 MB using MEBI - used in complex gateway or display controller designs |
| VDDA / VSSA | Analog power supply | Separate 5 V analog domain powers ATD reference and reduces digital noise coupling into ADC measurements |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 2 qualified | Rated for −40 °C to +105 °C ambient operation - meets automotive under-hood temperature requirements |
| On-chip voltage regulator (VREG) | Generates internal 2.5 V core supply from 5 V VDD - eliminates need for external regulator in cost-sensitive modules |
| Flash security via ROMCTL | Enables code protection by disabling read access to Flash memory - prevents unauthorized firmware extraction |
| Low-power stop mode | Consumes <10 µA typical current - extends battery life in always-on vehicle systems like alarm or telematics |
| Interrupt vector table relocation | Allows runtime remapping of interrupt vectors to Flash or RAM - supports bootloader and application partitioning |
Applications
| Body Control Module (BCM) | Powertrain Sensor Interface |
|---|---|
Use Scenario: Centralized control of door locks, windows, lighting, and wipers in modern vehicles. IC Role / Device Role / Timing Role: Main system controller executing real-time state machines and managing LIN/CAN communication with slave nodes. Use Value: Integrated CAN0/1 and 16-channel ATD enable direct connection to switches, potentiometers, and Hall-effect sensors without external signal conditioning. | Use Scenario: Signal conditioning and preprocessing for engine coolant temperature, throttle position, and manifold pressure sensors. IC Role / Device Role / Timing Role: Analog front-end processor with synchronized sampling and CAN message formatting before transmission to ECU. Use Value: 10-bit ATD accuracy ±1 LSB INL and dedicated VDDA/VSSA pins ensure stable measurement across temperature and supply variations. |
| Instrument Cluster Display Controller | Automotive Gateway Node |
Use Scenario: Driving gauge rendering, warning light management, and driver information display in digital dashboards. IC Role / Device Role / Timing Role: Real-time graphics scheduler interfacing with SPI-driven TFT LCD and receiving CAN messages from multiple ECUs. Use Value: 8-channel PWM with dead-time insertion supports RGB backlight dimming and stepper motor drivers for analog gauges. | Use Scenario: Protocol translation between high-speed CAN FD (or CAN 2.0B) and low-speed LIN networks in vehicle domain controllers. IC Role / Device Role / Timing Role: Message router with dual CAN controllers and software-configurable filtering and forwarding logic. Use Value: Independent MSCAN0/MSCAN1 modules allow simultaneous reception/transmission on separate buses with no shared register conflicts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XDP512 | Enhanced XGATE co-processor, 512 KB Flash, 32 KB RAM, same 112-pin LQFP package | Higher computational throughput for real-time signal processing tasks (e.g., active suspension control) | Select when additional deterministic processing bandwidth beyond HCS12 core is required |
| S912XEQ512J2 | Same HCS12X core, 512 KB Flash, 32 KB RAM, AEC-Q100 Grade 1 (−40 °C to +125 °C) | Extended temperature range suits under-hood engine control units where ambient exceeds 105 °C | Choose for higher thermal margin in critical powertrain applications |
Compared with MC9S12DG128VFUE, the MC9S12XDP512 adds XGATE acceleration for time-critical ISR offloading, while S912XEQ512J2 extends operating temperature range and doubles Flash/RAM - both retain identical peripheral sets and pin compatibility but require layout review due to different thermal pad configurations.
Availability
MC9S12DG128VFUE is available at Aetrix Electronics and suitable for automotive body electronics, instrument cluster design, and gateway node development requiring stable component supply and long-term lifecycle support.
Supply support for MC9S12DG128VFUE 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 markets, with deep heritage in microcontroller innovation.
The HCS12 family, including MC9S12DG128VFUE, was designed specifically for cost-sensitive, high-reliability automotive applications requiring CAN networking, real-time control, and extended temperature operation.
FAQ
What is the maximum bus frequency supported by the MC9S12DG128VFUE?
The MC9S12DG128VFUE supports a maximum bus frequency of 25 MHz, achieved via its on-chip PLL configured with external crystal input (typically 4–8 MHz). This frequency defines the timing base for all peripherals including CAN, SCI, and ATD conversion cycles, and is validated across the full −40 °C to +105 °C operating range specified for the MC9S12DG128VFUE.
Does the MC9S12DG128VFUE include built-in CAN controllers?
Yes, the MC9S12DG128VFUE integrates two fully independent MSCAN modules (MSCAN0 and MSCAN1), each compliant with ISO 11898-1 (CAN 2.0B) protocol. These controllers support bit rates up to 1 Mbit/s, message filtering, and mailbox-based transmit/receive buffers - confirmed in the Device User Guide section 20 and Appendix A.6 for the MC9S12DG128VFUE.
What package type and pin count does the MC9S12DG128VFUE use?
The MC9S12DG128VFUE uses a 112-pin LQFP package (case number 987) with 0.4 mm pitch and 20 × 20 mm body size, as documented in Appendix B.2 of the Device User Guide. This package is lead-free and RoHS-compliant, and supports thermal dissipation via exposed pad grounding - consistent across all MC9S12DG128 variants including the MC9S12DG128VFUE.
Is the MC9S12DG128VFUE qualified for automotive applications?
Yes, the MC9S12DG128VFUE is AEC-Q100 qualified (Grade 2), rated for operation from −40 °C to +105 °C ambient temperature. This qualification is explicitly stated in the "Derivative Differences" tables (0-1 and 0-2) of the Device User Guide and applies to the MC9S12DG128VFUE variant as part of the MC9S12DG128 family.
How much Flash and RAM memory does the MC9S12DG128VFUE provide?
The MC9S12DG128VFUE provides 128 KB of on-chip Flash memory and 8 KB of RAM. These values are fixed for the DG128 derivative and confirmed in Section 1.2 "Features", Section 17 (Flash description), and Section 19 (RAM description) of the Device User Guide - applicable specifically to the MC9S12DG128VFUE.
MC9S12DG128VFUE 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12DG128VFUE FAQ
1.How can I place an order for MC9S12DG128VFUE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12DG128VFUE 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 MC9S12DG128VFUE reliable?
The price and inventory of MC9S12DG128VFUE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12DG128VFUE is usually 5 days.
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Once your MC9S12DG128VFUE 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 MC9S12DG128VFUE?
For technical support, including MC9S12DG128VFUE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12DG128VFUE requirements.
6.How does Aetrix verify that MC9S12DG128VFUE is sourced from the original manufacturer or authorized distributors?
All MC9S12DG128VFUE 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 MC9S12DG128VFUE meets industry standards.
7.What is the process for return or replacement of MC9S12DG128VFUE?
All MC9S12DG128VFUE units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12DG128VFUE, 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 MC9S12DG128VFUE part is unused and in its original packaging.
Return procedure for MC9S12DG128VFUE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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