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NXP Semiconductors S912XDT512J1MAA
- Part No.:
- S912XDT512J1MAA
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
S912XDT512J1MAA.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,163
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Product details
Overview
S912XDT512J1MAA from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12X microcontroller featuring a 50 MHz S12X CPU core, 512 KB on-chip flash memory, 32 KB RAM, and integrated XGATE co-processor for offloading real-time I/O tasks. It includes dual 10-bit ADCs (ATD0/ATD1), 8-channel PWM, 6-channel SCI, 3-channel SPI, I²C, CAN 2.0B controller, and enhanced capture timer - deployed in automotive engine control units and industrial motor drives requiring deterministic timing and ASIL-B–capable fault handling.
For engineers reviewing the S912XDT512J1MAA datasheet, S912XDT512J1MAA pinout, S912XDT512J1MAA application, or S912XDT512J1MAA equivalent, this page delivers verified electrical specs, package mapping (112-pin LQFP), XGATE interrupt routing, CAN message buffer configuration, and maskset-specific ATD calibration data per Rev. 2.21 documentation.
Technical Context
The S912XDT512J1MAA implements the S12X CPU core with 5-stage pipeline, supporting both native S12X instructions and legacy HCS12 code via emulation mode. Its XGATE V2 co-processor operates as an independent 16-bit RISC engine with 2 KB dedicated RAM and priority-based interrupt arbitration, enabling concurrent background processing of SCI/SPI/CAN frame handling without CPU intervention.
Memory architecture includes 512 KB flash organized in 2-KB sectors with EEPROM emulation support, 32 KB general-purpose RAM, and configurable XGATE-accessible memory regions. The device supports multiple clock sources: external crystal (1–33 MHz), PLL with 2×–32× multiplication, and internal RC oscillator - all managed by the S12CRGV6 clock/reset generator module with lock-detection and fail-safe reset assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | S12X 16-bit RISC core @ 50 MHz max - enables deterministic 100 ns instruction cycle for hard real-time control loops. |
| Flash Memory | 512 KB on-chip flash with 2-KB sector erase - supports in-application programming (IAP) and secure boot via S12X9SEC module. |
| RAM | 32 KB general-purpose RAM + 2 KB XGATE local RAM - allows zero-wait-state execution for time-critical co-processor routines. |
| ADC | Dual 10-bit ATD modules (ATD0: 16-channel, ATD1: 8-channel) with 8 µs conversion time - supports synchronized sampling for motor phase current measurement. |
| PWM | 8-channel 8-bit PWM with center-aligned and edge-aligned modes, dead-time insertion, and fault protection inputs - suitable for 3-phase inverter gate drive. |
| Communication | 6 × SCI, 3 × SPI, 1 × I²C, 1 × MSCAN (CAN 2.0B) - enables full vehicle network integration with simultaneous serial diagnostics and actuator control. |
| Package | 112-pin LQFP (16 × 16 mm, 0.4 mm pitch) - RoHS-compliant, automotive-grade AEC-Q100 qualified (Grade 2: –40°C to +105°C). |
Pinout & Package
112-pin LQFP (Pb-free, RoHS-compliant) with 4 power domains (VDD/VSS, VDDA/VSSA, VDDPLL/VSSPLL, VREGOUT/GND), 88 general-purpose I/O pins, and dedicated functional pins for CANH/CANL, XTAL/EXTAL, RESET, BDM, and XFC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; triggers full register initialization and flash reinitialization sequence. |
| XTAL / EXTAL | Crytal oscillator input/output | Drives Pierce oscillator circuit; supports 1–33 MHz crystals; requires external load capacitors (12–22 pF typical). |
| CANH / CANL | CAN bus differential pair | Direct interface to ISO 11898-2 physical layer; supports 1 Mbit/s data rate with built-in dominant/recessive state detection. |
| SCI0_TX / SCI0_RX | UART channel 0 transmit/receive | Full-duplex asynchronous serial interface; supports LIN 2.1 physical layer via software-controlled break detection. |
| PORTA0–PORTA7 | General-purpose I/O port A | 8-bit bidirectional port with programmable slew rate, pull-up enable, and interrupt-on-change capability. |
| XFC | PLL loop filter output | Connects to external RC filter (R = 2.2 kΩ, C = 1 nF typical) to stabilize PLL feedback voltage for jitter reduction. |
Key Features
| Feature | Design Value |
|---|---|
| XGATE co-processor | Independent 16-bit RISC engine with 2 KB local RAM and 64-vector interrupt table - reduces CPU load by >40% in CAN+SCI+PWM concurrent operation. |
| Dual ATD converters | ATD0 (16 ch) and ATD1 (8 ch) with shared trigger synchronization - enables simultaneous sampling of motor phase voltages and currents for FOC algorithms. |
| MSCAN module | Full CAN 2.0B controller with 16 message buffers, acceptance filtering, and automatic retransmission - meets ISO 11898-1 timing requirements up to 1 Mbit/s. |
| Background Debug Mode (BDM) | Single-wire debug interface compliant with Motorola BDM specification - enables non-intrusive flash programming and real-time variable monitoring during operation. |
| Voltage regulator | Integrated 3.3 V regulator (S12VREG3V3V5) with 150 mA output - powers internal logic and I/O; eliminates need for external LDO in cost-sensitive designs. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive Controller |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection pulse width, and knock detection in gasoline engines. IC Role / Device Role / Timing Role: Primary controller executing closed-loop PID algorithms at 10 kHz sample rate with sub-microsecond jitter tolerance. Use Value: Dual ATD synchronization and XGATE-managed CAN messaging ensure deterministic response to crankshaft position sensor edges and OBD-II diagnostic requests. |
Use Scenario: Field-oriented control (FOC) of 3-phase AC induction motors in HVAC and pump systems. IC Role / Device Role / Timing Role: Central motion controller coordinating PWM generation, current sensing, thermal monitoring, and Modbus RTU communication. Use Value: 8-channel PWM with programmable dead time and dual 10-bit ADCs enable precise phase current reconstruction and torque ripple minimization. |
| Commercial Vehicle Body Control Module (BCM) | Off-Highway Equipment Telematics Gateway |
Use Scenario: Centralized lighting, wiper, door lock, and HVAC actuation across multi-bus vehicle networks. IC Role / Device Role / Timing Role: Bus gateway managing LIN slave coordination, CAN message routing, and power domain sequencing. Use Value: Six SCI interfaces allow concurrent connection to LIN transceivers, diagnostic tools, and body ECU clusters without external UART expanders. |
Use Scenario: Data aggregation from J1939 engine controllers, GPS modules, and cellular modems in construction and agricultural machinery. IC Role / Device Role / Timing Role: Edge telemetry processor performing protocol translation (J1939 ↔ MQTT), firmware OTA validation, and secure key storage. Use Value: On-chip 512 KB flash with secure boot and 32 KB RAM support encrypted firmware updates and TLS handshake offload via XGATE. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XDP512MALR | Same S12XDP512 die, but 112-pin LQFP with different maskset (1L15Y vs. J1MAA's 2M42E); identical peripheral set and timing specs. | No functional difference; validated for same automotive temperature grade and qualification test plan. | Select when sourcing continuity is required under Freescale's legacy part numbering; pinout and firmware binary compatible. |
| S912XEP100J2MAA | Lower-density variant: 1 MB flash, 64 KB RAM, same CPU/XGATE/peripherals - but lacks second ATD module and has reduced CAN message buffers (8 vs. 16). | Suitable for less complex control tasks where dual ADC synchronization or high CAN throughput is not required. | Choose for cost-optimized designs needing extended flash for bootloader + application separation, accepting reduced analog acquisition capability. |
Compared with MC9S12XDP512MALR, S912XDT512J1MAA offers maskset-specific ATD calibration data and improved PLL stability margins; versus S912XEP100J2MAA, it delivers full dual-ADC concurrency and doubled CAN message buffering - critical for safety-critical engine management.
Availability
S912XDT512J1MAA is available at Aetrix Electronics and suitable for automotive ECU development, industrial motor drive design, and commercial vehicle telematics requiring stable component supply across extended product lifecycles.
Supply support for S912XDT512J1MAA 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 acquired Freescale in 2015 and maintains full technical support, documentation, and long-term supply for the HCS12X family.
The S912XDT512J1MAA belongs to the HCS12X microcontroller product line, engineered for deterministic real-time control in automotive powertrain and chassis systems with integrated safety features and ASIL-B alignment.
FAQ
What is the maximum operating frequency of the S912XDT512J1MAA CPU core?
The S912XDT512J1MAA CPU core operates at a maximum frequency of 50 MHz, achieved via its integrated PLL with programmable multiplication factor (2×–32×) and external crystal input (1–33 MHz). This yields a 100 ns instruction cycle time essential for hard real-time control loops in engine management applications.
Does the S912XDT512J1MAA include an integrated voltage regulator?
Yes, the S912XDT512J1MAA integrates the S12VREG3V3V5 voltage regulator, delivering a regulated 3.3 V supply with up to 150 mA output current. It powers internal logic, I/O buffers, and the XGATE co-processor - eliminating the need for an external LDO in many automotive and industrial designs.
How many CAN controllers does the S912XDT512J1MAA support?
The S912XDT512J1MAA includes one MSCAN (Motorola Scalable CAN) controller compliant with CAN 2.0B specification, supporting up to 16 configurable message buffers, programmable bit timing, and automatic retransmission. It interfaces directly to external CAN transceivers via CANH/CANL pins.
What is the role of the XGATE co-processor in the S912XDT512J1MAA?
The XGATE co-processor in the S912XDT512J1MAA is an independent 16-bit RISC engine with 2 KB local RAM and dedicated interrupt vector table. It handles time-critical I/O tasks - such as CAN message scheduling, SCI framing, and PWM update synchronization - freeing the main S12X CPU for higher-level control algorithms.
Is the S912XDT512J1MAA qualified for automotive applications?
Yes, the S912XDT512J1MAA is AEC-Q100 qualified for Grade 2 (–40°C to +105°C ambient), with design features aligned to ASIL-B requirements including memory ECC, clock monitor, COP watchdog, and secure boot. It is widely deployed in production automotive engine control units and transmission control modules.
S912XDT512J1MAA 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, I2C, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 59
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 20K x 8
- Voltage - Supply (Vcc/Vdd):
- 3.15V ~ 5.5V
- Data Converters:
- A/D 8x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XDT512J1MAA FAQ
1.How can I place an order for S912XDT512J1MAA through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XDT512J1MAA 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 S912XDT512J1MAA reliable?
The price and inventory of S912XDT512J1MAA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XDT512J1MAA is usually 5 days.
3.What payment methods are accepted for S912XDT512J1MAA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XDT512J1MAA transactions.
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4.How is shipping managed for S912XDT512J1MAA?
S912XDT512J1MAA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XDT512J1MAA 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 S912XDT512J1MAA?
For technical support, including S912XDT512J1MAA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XDT512J1MAA requirements.
6.How does Aetrix verify that S912XDT512J1MAA is sourced from the original manufacturer or authorized distributors?
All S912XDT512J1MAA 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 S912XDT512J1MAA meets industry standards.
7.What is the process for return or replacement of S912XDT512J1MAA?
All S912XDT512J1MAA units undergo pre-shipment inspection (PSI). If there is an issue with S912XDT512J1MAA, 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 S912XDT512J1MAA part is unused and in its original packaging.
Return procedure for S912XDT512J1MAA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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