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NXP Semiconductors S912XEQ512J3MAGR
- Part No.:
- S912XEQ512J3MAGR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
S912XEQ512J3MAGR.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,791
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Product details
Overview
S912XEQ512J3MAGR from NXP Semiconductors (formerly Freescale) is a 16-bit automotive microcontroller featuring the CPU12X core, 512 KB on-chip Flash memory with ECC, 32 KB RAM, and integrated MSCAN, XGATE co-processor, and enhanced ATD. It delivers full CAN performance in body control modules and gateway applications with -40°C to 125°C operation and 50 MHz bus frequency.
For engineers reviewing the S912XEQ512J3MAGR datasheet, S912XEQ512J3MAGR pinout, S912XEQ512J3MAGR application, or S912XEQ512J3MAGR equivalent, key selection criteria include Flash ECC support, XGATE offloading capability for CAN/LIN, 144-pin LQFP package compatibility, and automotive-grade temperature range compliance.
Technical Context
The S912XEQ512J3MAGR implements the CPU12X core with full MC9S12 instruction set compatibility (excluding five fuzzy instructions), supports 16-bit wide zero-wait-state peripheral and memory access, and integrates an enhanced XGATE co-processor running at 100 MIPS with dual interrupt levels for autonomous CAN mailbox management and LIN protocol handling.
It features Memory Protection Unit (MPU) with eight configurable address regions down to 8-byte granularity, ECC-enabled Flash with 1-bit correction/2-bit detection, and a Frequency Modulated PLL (IPLL) enabling spread-spectrum clocking to reduce EMC emissions without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU12X 16-bit core compatible with MC9S12 instruction set; enables legacy code reuse with deterministic timing and no wait states for internal peripherals. |
| Flash Memory | 512 KB with ECC (64 data + 8 syndrome bits); provides single-bit error correction and double-bit fault detection for ASIL-B–capable system integrity. |
| RAM | 32 KB SRAM; sufficient for real-time task stacks, XGATE buffers, and CAN message queues in automotive body control applications. |
| XGATE Co-processor | Programmable in C, runs at 100 MIPS; handles MSCAN interrupts, LIN framing, and SPI/SCI transfers independently of CPU, freeing main core for application logic. |
| CAN Modules | 4-channel MSCAN (CAN0, CAN1, CAN2, CAN4); supports CAN 2.0A/B, up to 1 Mbps bit rate, and FULL-CAN operation when paired with XGATE. |
| ADC | Single 8/10/12-bit ATD module with 8-channel multiplexer; achieves 3 µs 10-bit conversion time and supports wake-up from STOP mode on analog threshold crossing. |
| Package | 144-pin LQFP (20×20 mm, 0.5 mm pitch); enables compact PCB layout with non-multiplexed external bus interface for optional external memory expansion. |
| Temperature Range | -40°C to 125°C; qualified for under-hood and powertrain-adjacent automotive locations per AEC-Q100 Grade 0 requirements. |
Pinout & Package
144-pin LQFP package (case number 918-03), 20 mm × 20 mm body, 0.5 mm pitch, RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDX | Core & I/O Power Supply | Dual supply pins enable independent filtering of CPU core (VDD) and I/O (VDDX) for optimized EMC performance per AEC-Q100 test plans. |
| VREG_IN, VREG_OUT | On-Chip Voltage Regulator | VREG_IN accepts 5 V input; VREG_OUT supplies regulated 3.3 V to internal logic-eliminates need for external regulator in 5 V systems. |
| RESET | Active-Low Reset Input | Asynchronous reset with internal pull-up; supports external watchdog (COP) or system-level reset assertion during brown-out or initialization. |
| MSCAN0_TX / MSCAN0_RX | CAN0 Differential Transceiver Interface | Direct connection to external CAN transceiver (e.g., TJA1042); requires external termination resistor and common-mode choke per ISO 11898-2. |
| XGATE_IRQ | XGATE Interrupt Request Output | Signals completion of XGATE tasks (e.g., CAN message processing) to CPU; enables low-latency handoff without polling overhead. |
| PORTH[7:0] | General-Purpose I/O Port | 8-bit port with configurable pull-up/pull-down, hysteresis, and drive strength; used for PWM output, sensor inputs, or discrete driver control in body modules. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | 8 programmable address regions with 8-byte granularity; enforces no-execute and no-write attributes to isolate safety-critical firmware partitions. |
| ECC on Flash & D-Flash | 64+8-bit ECC encoding per word; ensures reliable boot code execution and data logging integrity over 15-year automotive lifecycle. |
| Enhanced XGATE Coprocessor | 100 MIPS RISC engine with dual interrupt levels; offloads >90% of CAN/LIN protocol stack processing, reducing CPU load to <15% in gateway use cases. |
| IPLL with Spread Spectrum | Internally filtered PLL with software-configurable frequency modulation; reduces peak EMI by ≥10 dB across 150 kHz–108 MHz band without external components. |
| Emulated EEPROM (EEE) | 4 KB D-Flash-based EEE with automatic wear leveling and atomic write; stores calibration data, odometer values, and configuration parameters with 100K-cycle endurance. |
| Background Debug (BDM) | Single-wire BDM interface compliant with standard S12X debug protocol; enables flash programming, breakpoint insertion, and real-time register inspection in production environments. |
Applications
| Body Control Module (BCM) | Vehicle Gateway |
|---|---|
|
Use Scenario: Centralized control of lighting, door locks, window lifts, and HVAC actuators in modern passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing body domain logic, managing LIN slave nodes (e.g., mirror controls), and routing CAN messages between chassis and infotainment networks. Use Value: XGATE handles all LIN frame assembly/disassembly and CAN mailbox arbitration, allowing CPU to maintain <50 µs response latency for critical safety functions like hazard light activation. |
Use Scenario: Protocol translation and message filtering between high-speed powertrain CAN (500 kbps) and low-speed body CAN (125 kbps) networks. IC Role / Device Role / Timing Role: Dual-CAN gateway MCU performing store-and-forward routing, message prioritization, and diagnostic request forwarding using hardware-accelerated MSCAN modules. Use Value: 4 independent MSCAN controllers with XGATE-managed FIFOs sustain concurrent 1 Mbps CAN traffic on two buses while maintaining <100 µs inter-message latency for UDS diagnostics. |
| Seat Control Unit | Roof Module Controller |
|
Use Scenario: Real-time position tracking and motor control for power-adjustable driver/passenger seats with memory presets. IC Role / Device Role / Timing Role: Sensor fusion hub integrating ATD readings from potentiometers and Hall-effect sensors, driving 8-channel PWM outputs to bidirectional DC motors. Use Value: On-chip 10-bit ATD achieves 3 µs conversion time and supports wake-up from WAIT mode on seat position change, enabling sub-100 ms resume-to-operation after ignition-on. |
Use Scenario: Integrated control of sunroof actuation, ambient lighting, and rain sensor wiper activation in premium vehicle roof modules. IC Role / Device Role / Timing Role: Mixed-signal controller interfacing analog rain/light sensors via ATD, driving PWM-controlled LED strings, and communicating status over LIN to BCM. Use Value: Dedicated EEE storage retains last-known sunroof position and lighting preferences across battery disconnect events, ensuring user experience continuity without external NV memory. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP100MALR | 1 MB Flash, 64 KB RAM, 208-pin MAPBGA; adds fifth CAN channel and 24 additional I/O pins vs. S912XEQ512J3MAGR. | Targeted at high-end gateways requiring >4 CAN domains or complex I/O expansion via external bus. | Select when system requires >512 KB Flash for OTA update partitioning or needs non-multiplexed external bus for external RAM/Flash. |
| SPC560P50L5CEFAY | 32-bit Power Architecture core, 512 KB Flash, 64 KB RAM, 3x CAN FD, integrated Ethernet MAC; no XGATE but includes e200z0h core and MPC56xx toolchain. | Designed for next-gen domain controllers migrating from CAN to CAN FD/Ethernet; lacks EEE but offers higher compute throughput. | Choose for new designs targeting CAN FD migration or requiring ASIL-B certified compiler/toolchain; not drop-in compatible due to architecture and pinout differences. |
Compared with S912XEQ512J3MAGR, MC9S12XEP100MALR offers greater memory and I/O scalability in larger packages, while SPC560P50L5CEFAY provides 32-bit performance and CAN FD readiness at the cost of legacy S12X code compatibility and XGATE offload efficiency.
Availability
S912XEQ512J3MAGR is available at Aetrix Electronics and suitable for automotive body control, gateway, seat control, and roof module applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 qualification.
Supply support for S912XEQ512J3MAGR 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep heritage in automotive microcontrollers dating to the Motorola S08 era.
The S12XE family-including S912XEQ512J3MAGR-was designed specifically for cost-sensitive, high-reliability automotive body electronics where 16-bit efficiency, CAN/LIN integration, and functional safety features (MPU, ECC) are essential.
FAQ
What is the maximum bus frequency supported by the S912XEQ512J3MAGR?
The S912XEQ512J3MAGR supports a maximum CPU bus frequency of 50 MHz, achieved via its internally filtered IPLL clock generator. This enables deterministic real-time execution of automotive control loops with sub-microsecond interrupt latency, validated across the full -40°C to 125°C operating range specified for the S912XEQ512J3MAGR.
Does the S912XEQ512J3MAGR include hardware error correction for Flash memory?
Yes, the S912XEQ512J3MAGR integrates Error Correction Code (ECC) on its 512 KB Flash memory, using 64 data bits plus 8 syndrome bits per word to provide single-bit fault correction and double-bit fault detection. This ECC implementation is active during all read operations and is a key enabler of ASIL-B compliance for safety-critical automotive software stored in the S912XEQ512J3MAGR Flash.
How many CAN interfaces does the S912XEQ512J3MAGR support?
The S912XEQ512J3MAGR supports four MSCAN modules (CAN0, CAN1, CAN2, and CAN4), each compliant with CAN 2.0A/B protocols and capable of bit rates up to 1 Mbps. When combined with the XGATE co-processor, these modules deliver FULL-CAN functionality with hardware-accelerated mailbox management, a defining capability of the S912XEQ512J3MAGR in multi-bus automotive networks.
What package type is used for the S912XEQ512J3MAGR?
The S912XEQ512J3MAGR is supplied in a 144-pin LQFP package (case number 918-03) with 20 mm × 20 mm body size and 0.5 mm pitch. This package supports non-multiplexed external bus interface for optional external memory expansion and is pin-compatible with other S12XE derivatives in the same footprint, simplifying design reuse across the S912XEQ512J3MAGR product family.
Is the S912XEQ512J3MAGR qualified for automotive applications?
Yes, the S912XEQ512J3MAGR is AEC-Q100 qualified for Grade 0 (-40°C to +125°C), meeting stringent automotive reliability, ESD, and EMC requirements. Its design includes features such as Memory Protection Unit (MPU), ECC Flash, and enhanced current consumption profiles-all validated for under-hood and body-control applications where the S912XEQ512J3MAGR is commonly deployed.
S912XEQ512J3MAGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 144-LQFP
- Series:
- HCS12X
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- HCS12X
- Core Size:
- 16-Bit
- Speed:
- 50MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, IrDA, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 119
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.72V ~ 5.5V
- Data Converters:
- A/D 24x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XEQ512J3MAGR FAQ
1.How can I place an order for S912XEQ512J3MAGR through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512J3MAGR 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 S912XEQ512J3MAGR reliable?
The price and inventory of S912XEQ512J3MAGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512J3MAGR is usually 5 days.
3.What payment methods are accepted for S912XEQ512J3MAGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512J3MAGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512J3MAGR?
S912XEQ512J3MAGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512J3MAGR 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 S912XEQ512J3MAGR?
For technical support, including S912XEQ512J3MAGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512J3MAGR requirements.
6.How does Aetrix verify that S912XEQ512J3MAGR is sourced from the original manufacturer or authorized distributors?
All S912XEQ512J3MAGR 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 S912XEQ512J3MAGR meets industry standards.
7.What is the process for return or replacement of S912XEQ512J3MAGR?
All S912XEQ512J3MAGR units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512J3MAGR, 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 S912XEQ512J3MAGR part is unused and in its original packaging.
Return procedure for S912XEQ512J3MAGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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