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NXP Semiconductors MC9S12XDG128MAA
- Part No.:
- MC9S12XDG128MAA
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
MC9S12XDG128MAA.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,727
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Product details
Overview
MC9S12XDG128MAA from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12X microcontroller with XGATE co-processor, 128 KB on-chip flash memory, 8 KB RAM, and integrated CAN 2.0B controller. It operates at up to 50 MHz core frequency, supports 5V tolerant I/O, and targets automotive body control modules requiring real-time deterministic response and functional safety support.
For engineers reviewing the MC9S12XDG128MAA datasheet, MC9S12XDG128MAA pinout, MC9S12XDG128MAA application, or MC9S12XDG128MAA equivalent, key selection criteria include its dual-core architecture (S12X CPU + XGATE RISC), 128 KB flash with EEPROM emulation, 2× CAN interfaces, 10-bit ATD with 16 channels, and 112-pin LQFP package with automotive-grade temperature range (−40°C to +125°C).
Technical Context
The MC9S12XDG128MAA implements the S12X CPU core with enhanced addressing modes and a separate XGATE co-processor for offloading time-critical peripheral handling-enabling concurrent execution of main application code and interrupt-driven I/O tasks. Its memory subsystem includes 128 KB flash (with 2 KB EEPROM emulation), 8 KB RAM, and configurable XGATE-accessible memory regions.
It integrates dual CAN 2.0B controllers compliant with ISO 11898-1, a 10-bit 16-channel analog-to-digital converter (ATD) with programmable sample-and-hold, 8-channel PWM with center-aligned mode, and an enhanced capture timer (ECT) supporting quadrature decoding and input capture with timestamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12X 16-bit CPU + XGATE 16-bit RISC co-processor for parallel peripheral management |
| Flash Memory | 128 KB on-chip flash with EEPROM emulation (2 KB), supporting in-application programming (IAP) |
| RAM | 8 KB on-chip RAM, including 2 KB XGATE-accessible RAM for low-latency data exchange |
| CAN Interfaces | 2× CAN 2.0B controllers with message buffers, FIFO support, and bus-off recovery |
| ADC | 10-bit ATD with 16 input channels, 8 µs conversion time, and external trigger capability |
| PWM Channels | 8-channel PWM module with independent period/width control, dead-time insertion, and center-aligned mode |
| Package | 112-pin LQFP (16 × 16 mm, 0.4 mm pitch), RoHS-compliant, automotive AEC-Q100 Grade 1 qualified |
Pinout & Package
MC9S12XDG128MAA is housed in a 112-pin LQFP package with exposed thermal pad, optimized for automotive PCB thermal management and EMI robustness. Pin assignment follows the S12X DG128 Port Integration Module (PIM) specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 5V power domains: digital (VDD/VSS) and analog (VDDA/VSSA) with independent filtering paths |
| EXTAL / XTAL | Clock oscillator inputs | Supports crystal (4–32 MHz) or external clock source; enables PLL-based system clock up to 50 MHz |
| CAN0_TX / CAN0_RX | CAN 0 differential transceiver interface | Direct connection to external CAN transceiver; supports high-speed (1 Mbps) and fault-tolerant operation |
| CAN1_TX / CAN1_RX | CAN 1 differential transceiver interface | Independent second CAN bus for gateway or redundancy applications; isolated from CAN0 in register mapping |
| AN0–AN15 | Analog input channels | 16 single-ended or 8 differential ADC inputs; shared with port pins P0–P3, configurable via PIM registers |
| IOC0–IOC7 | Enhanced capture timer I/O | Input capture, output compare, and pulse-width measurement on dedicated pins with 16-bit resolution |
Key Features
| Feature | Design Value |
|---|---|
| XGATE co-processor | Offloads CPU from time-critical ISR handling (e.g., CAN message buffering, ADC sampling), reducing main core latency by >60% in benchmarked gateway use cases |
| Dual CAN 2.0B controllers | Enables vehicle gateway functionality with simultaneous communication on chassis and infotainment buses without software arbitration overhead |
| EEPROM emulation | 2 KB flash sector configured as wear-levelled EEPROM for parameter storage (100k write cycles), eliminating need for external nonvolatile memory |
| 5V-tolerant I/O | All general-purpose I/O pins withstand 5.5V input-compatible with legacy automotive sensor and actuator interfaces without level-shifting |
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation, meeting automotive reliability requirements for under-hood ECUs |
Applications
| Body Control Module (BCM) | Door Module Controller |
|---|---|
Use Scenario: Centralized control of lighting, window lifts, mirror adjustment, and door lock actuators in modern vehicles. IC Role / Device Role: Main MCU executing real-time control logic, managing LIN slave nodes, and communicating via CAN with instrument cluster and gateway. Use Value: Dual CAN interfaces enable seamless integration into both powertrain and body networks; XGATE handles LIN frame generation while CPU manages state machines. | Use Scenario: Localized intelligence in each vehicle door for window anti-pinch, mirror folding, and proximity sensing. IC Role / Device Role: Standalone node with integrated ADC for potentiometer feedback, PWM for motor drive, and CAN for diagnostics and configuration updates. Use Value: 16-channel ADC supports multi-sensor fusion (e.g., rain/light sensors); 8-channel PWM drives dual motors with independent dead-time control. |
| Seat Position Controller | Roof Module (Sunroof/Convertibles) |
Use Scenario: Motorized seat adjustment with memory presets, position feedback, and collision detection. IC Role / Device Role: Real-time position tracking using quadrature encoder inputs (via ECT), current sensing (via ATD), and closed-loop motor control (via PWM). Use Value: Enhanced Capture Timer supports hardware quadrature decoding at >10 kHz; ATD samples current sense resistors at 100 ksps for overcurrent protection. | Use Scenario: Sunroof or convertible top control with obstacle detection, soft-stop, and synchronized motor sequencing. IC Role / Device Role: Safety-critical motion controller interfacing with Hall-effect sensors, limit switches, and brushed DC motors. Use Value: Two independent CAN interfaces allow separation of control (CAN0) and diagnostics/safety monitoring (CAN1); internal voltage regulator supplies 3.3V to sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XDP512MAL | 512 KB flash, 32 KB RAM, same S12X+XGATE architecture, 112-pin LQFP, but higher memory density and extended peripheral set (e.g., 3× SPI, 6× SCI) | Targeted at complex gateways or domain controllers requiring larger firmware footprint and more serial interfaces | Select when future firmware scalability or additional UART/SPI peripherals are required; not drop-in due to different memory map and PIM register layout |
| S912XDG128F0MLH | NXP rebranded successor with identical pinout, memory, and peripheral spec; updated maskset (M23S), improved ESD performance (±8 kV HBM), and extended lifecycle support | Drop-in replacement for new designs seeking long-term availability and enhanced robustness; same automotive qualification | Preferred for new designs where supply chain continuity and latest maskset reliability are critical |
Compared with MC9S12XDG128MAA, MC9S12XDP512MAL offers greater memory headroom for feature-rich applications but requires PCB layout review due to differing peripheral register mapping, while S912XDG128F0MLH provides identical functionality with improved process yield and extended manufacturing support-making it the optimal upgrade path.
Availability
MC9S12XDG128MAA is available at Aetrix Electronics and suitable for automotive body electronics, door control modules, and seat position systems requiring stable component supply, AEC-Q100 compliance, and long-term industrial availability.
Supply support for MC9S12XDG128MAA 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 heritage in automotive microcontrollers dating back to Motorola and Freescale.
The S12X family-including MC9S12XDG128MAA-is designed specifically for cost-sensitive, safety-aware automotive body electronics, emphasizing real-time determinism, functional safety readiness (ISO 26262 ASIL-B support), and robust EMC performance in harsh environments.
FAQ
What is the maximum operating frequency of the MC9S12XDG128MAA?
The MC9S12XDG128MAA achieves a maximum core clock frequency of 50 MHz using its on-chip PLL, derived from an external crystal (4–32 MHz) connected to EXTAL/XTAL. This frequency is sustained across the full automotive temperature range (−40°C to +125°C) and supports real-time deterministic execution for body control applications.
Does the MC9S12XDG128MAA support in-system programming (ISP)?
Yes, the MC9S12XDG128MAA supports in-application programming (IAP) of its 128 KB flash memory via the BDM interface or user firmware routines. This enables field firmware updates and parameter reconfiguration without requiring external programmers, provided proper flash erase/write routines and security unlock sequences are implemented per the reference manual.
How many CAN interfaces does the MC9S12XDG128MAA integrate?
The MC9S12XDG128MAA integrates two independent CAN 2.0B controllers (CAN0 and CAN1), each with 16 message buffers, programmable acceptance filters, and bus-off recovery. They operate concurrently with separate register sets and interrupt vectors, enabling true dual-bus gateway functionality in automotive networks.
Is the MC9S12XDG128MAA pin-compatible with other S12X derivatives like MC9S12XDP512?
No, the MC9S12XDG128MAA is not pin-compatible with MC9S12XDP512 despite sharing the same 112-pin LQFP package. Pin functions differ significantly-especially for peripheral signals (e.g., SCI, SPI, PWM)-due to distinct Port Integration Module (PIM) implementations. PCB layout reuse requires full signal-level verification against respective datasheet pinouts.
What development tools are officially supported for the MC9S12XDG128MAA?
NXP officially supports CodeWarrior Development Studio for S12(X) v5.1+, S32DS for S12, and standalone P&E Micro BDM debuggers for the MC9S12XDG128MAA. These tools provide full JTAG/BDM debugging, flash programming, and XGATE co-processor visibility, with validated drivers for Windows and Linux host environments.
MC9S12XDG128MAA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-QFP
- Series:
- HCS12X
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- HCS12X
- Core Size:
- 16-Bit
- Speed:
- 80MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, IrDA, LINbus, SCI, SPI
- Peripherals:
- LVD, POR, 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:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.35V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12XDG128MAA FAQ
1.How can I place an order for MC9S12XDG128MAA through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12XDG128MAA 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 MC9S12XDG128MAA reliable?
The price and inventory of MC9S12XDG128MAA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12XDG128MAA is usually 5 days.
3.What payment methods are accepted for MC9S12XDG128MAA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12XDG128MAA transactions.
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4.How is shipping managed for MC9S12XDG128MAA?
MC9S12XDG128MAA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12XDG128MAA 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 MC9S12XDG128MAA?
For technical support, including MC9S12XDG128MAA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12XDG128MAA requirements.
6.How does Aetrix verify that MC9S12XDG128MAA is sourced from the original manufacturer or authorized distributors?
All MC9S12XDG128MAA 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 MC9S12XDG128MAA meets industry standards.
7.What is the process for return or replacement of MC9S12XDG128MAA?
All MC9S12XDG128MAA units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12XDG128MAA, 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 MC9S12XDG128MAA part is unused and in its original packaging.
Return procedure for MC9S12XDG128MAA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC9S12XDG128MAA Tags
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