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NXP Semiconductors S912XEQ512F1MAGR
- Part No.:
- S912XEQ512F1MAGR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
S912XEQ512F1MAGR.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,353
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Product details
Overview
S912XEQ512F1MAGR from NXP Semiconductors (formerly Freescale) is a 16-bit automotive microcontroller featuring the CPU12X core, 512KB on-chip Flash memory with ECC, 32KB RAM, and integrated MSCAN, XGATE co-processor, and enhanced ATD. It delivers full CAN performance in body control modules and gateway applications requiring -40°C to 125°C operation and functional safety support.
For engineers reviewing the S912XEQ512F1MAGR datasheet, S912XEQ512F1MAGR pinout, S912XEQ512F1MAGR application, or S912XEQ512F1MAGR equivalent, key selection criteria include its 50MHz bus frequency, dual ATD converters with 8/10/12-bit resolution, 4-channel MSCAN, XGATE coprocessor running at 100MHz, and MPU-enabled system integrity for ASIL-B–aligned automotive designs.
Technical Context
The S912XEQ512F1MAGR 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 RISC coprocessor capable of servicing all peripherals independently of the CPU. Its Memory Protection Unit defines eight address regions with 8-byte granularity and enforces no-write/no-execute attributes.
It features a Frequency Modulated PLL (IPLL) for EMC reduction, ECC-enabled Flash with 1-bit correction/2-bit detection, and a dual ATD subsystem offering up to 16 analog inputs per converter with 3μs 10-bit conversion time. The device includes four MSCAN modules compliant with CAN 2.0A/B and supports FULL-CAN operation when coordinated with XGATE.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU12X 16-bit core, compatible with MC9S12 ISA (minus MEM/WAV/REV instructions), enabling legacy code reuse without recompilation. |
| Flash Memory | 512KB Flash with ECC (64 data + 8 syndrome bits), supporting single-bit correction and double-bit detection for ASIL-B–level reliability. |
| RAM | 32KB on-chip RAM, accessible at full bus speed with zero wait states for real-time buffer and stack operations. |
| Bus Frequency | 50MHz CPU bus frequency, enabling deterministic real-time response in automotive timing-critical tasks like PWM generation and sensor sampling. |
| XGATE Performance | 100MHz XGATE coprocessor with programmable C support, offloading CAN/LIN/SCI handling and freeing CPU for application logic. |
| ATD Converter | Dual ATD modules, each with 8/10/12-bit resolution, 16-channel multiplexer, and 3μs 10-bit conversion - suitable for multi-sensor body electronics monitoring. |
| MSCAN Modules | Four independent MSCAN modules, each CAN 2.0A/B compliant, supporting up to 1Mbps bit rate and FULL-CAN operation via XGATE coordination. |
| Operating Temp | -40°C to 125°C ambient temperature range, qualified for under-hood and powertrain-adjacent automotive locations. |
Pinout & Package
Package: 144-pin LQFP (20×20 mm, 0.5 mm pitch, case no 918-03). Pinout validated per MC9S12XEQ512 datasheet Rev. 7 and Freescale S12XE Pin Assignment Tables.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main supply voltage input | Accepts 3.3V ±5% to 5.0V +10%; powers core logic and most peripherals; requires local decoupling for EMC compliance. |
| VDDA | Analog supply input | Separate 3.3V–5.0V supply for ATD and internal voltage reference; enables noise isolation between digital and analog domains. |
| VREGIN | Voltage regulator input | Input to on-chip linear regulators; allows separate filtering for improved EMC and low-voltage detect accuracy. |
| RESET | Active-low reset input | Asynchronous reset assertion resets CPU, peripherals, and registers; debounced internally for glitch immunity. |
| XTAL/EXTAL | Clock crystal interface | Connects to 4–16 MHz Pierce oscillator crystal; supports full-swing mode up to 40 MHz for flexible clock source selection. |
| PORTA[7:0] | General-purpose I/O port | 8-bit bidirectional port with configurable pull-up/pull-down, hysteresis, and drive strength; usable for discrete I/O or SPI slave select. |
| CAN0_TX / CAN0_RX | Primary CAN transceiver interface | Differential signal pair for CAN0 channel; requires external high-speed transceiver (e.g., TJA1042) for physical layer compliance. |
| SCI0_TX / SCI0_RX | UART serial interface | Asynchronous NRZ communication pins; support LIN master/slave operation when paired with XGATE for protocol timing precision. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | Eight configurable 8-byte–granularity address regions with no-write/no-execute enforcement, enabling task isolation for ASIL-B software partitioning. |
| ECC on Flash | 64+8-bit ECC encoding per word provides hardware-level single-bit correction and double-bit detection, eliminating need for external error-handling firmware. |
| XGATE Coprocessor | 100MHz RISC engine executing C-compiled code; handles CAN mailbox management, LIN frame scheduling, and SPI DMA without CPU intervention. |
| Enhanced ATD | Dual independent converters with 16-channel mux, 3μs 10-bit conversion, and stop-mode wake-up capability-ideal for battery-powered body sensors. |
| IPLL Clock Generator | Frequency-modulated PLL eliminates discrete filter components, reduces EMI peaks by spreading spectrum, and enables fast wake-up from STOP mode. |
| MSCAN with FULL-CAN | Four CAN modules with 5 receive buffers, 3 transmit buffers, and XGATE-driven mailbox arbitration-supports concurrent multi-bus gateway routing. |
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 managing PWM-driven power outputs, ATD-based sensor inputs (temperature, position), and LIN-connected slave nodes. Use Value: XGATE offloads LIN protocol timing and CAN message filtering, enabling deterministic 10ms BCM cycle times while maintaining 50MHz CPU headroom for diagnostics. |
Use Scenario: Protocol translation and message routing between high-speed CAN (powertrain), low-speed CAN (body), and LIN (door modules). IC Role / Device Role / Timing Role: Dual-CAN gateway MCU with dedicated XGATE threads for CAN0/CAN1 RX/TX buffering and priority-based forwarding logic. Use Value: Four MSCAN modules and XGATE-managed mailboxes eliminate software polling, achieving sub-200μs inter-bus latency for critical brake-light synchronization. |
| Roof Module Controller | Seat Control Unit |
Use Scenario: Integrated sunroof, panoramic roof, and ambient lighting control with tilt/slide position feedback and motor current sensing. IC Role / Device Role / Timing Role: Real-time motion controller using ECT for encoder capture, PWM for motor drive, and ATD for current/voltage monitoring. Use Value: Dual ATD converters sample motor current and rail voltage simultaneously at 10-bit resolution, enabling closed-loop current limiting within 50μs response window. |
Use Scenario: Motorized seat position memory, heating, and lumbar adjustment with occupant detection and thermal feedback. IC Role / Device Role / Timing Role: Safety-aware controller using MPU to isolate seat-movement firmware from diagnostic and OTA update partitions. Use Value: MPU-enforced memory regions prevent corrupted OTA updates from overwriting motor-control code, satisfying ISO 26262 ASIL-B partitioning requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S912XEP100J1MAG | 1MB Flash, 64KB RAM, 5 MSCAN, 208-pin MAPBGA; higher I/O count (152 pins) and extended peripheral set. | Targeted at flagship gateways and domain controllers requiring larger code footprint and more CAN/LIN channels. | Select when >512KB Flash or >4 MSCAN modules are required; not pin-compatible due to 208-pin MAPBGA package. |
| S912XET256J1MAG | 256KB Flash, 16KB RAM, 3 MSCAN, 144-pin LQFP; reduced ATD (single module), no XGATE on some variants. | Suitable for cost-sensitive entry-level body nodes where full XGATE offload and dual ATD are unnecessary. | Choose for lower BOM cost in non-safety-critical modules; shares same 144-LQFP footprint but lacks XGATE and second ATD. |
Compared with S912XEQ512F1MAGR, the S912XEP100J1MAG offers greater memory and CAN capacity in a larger package for scalable gateway designs, while the S912XET256J1MAG trades Flash size, XGATE, and ATD capability for cost reduction in simpler nodes-neither is pin-compatible, requiring PCB redesign.
Availability
S912XEQ512F1MAGR is available at Aetrix Electronics and suitable for automotive body control, vehicle gateway, roof module, seat control, and lighting management systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S912XEQ512F1MAGR 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 MCUs dating to the Motorola 68HC11 era.
The S12XE family was designed specifically for automotive body electronics and gateway applications demanding enhanced system integrity, including MPU, ECC, and XGATE acceleration-enabling ASIL-B–compliant software architectures without external safety monitors.
FAQ
What is the maximum operating frequency of the S912XEQ512F1MAGR CPU bus?
The S912XEQ512F1MAGR CPU bus operates at a maximum frequency of 50MHz. This enables deterministic execution of real-time automotive tasks such as PWM generation, ATD sampling, and CAN message processing. The S912XEQ512F1MAGR achieves zero-wait-state access to on-chip Flash and RAM at this frequency, ensuring consistent timing behavior critical for ASIL-B–level software certification.
Does the S912XEQ512F1MAGR include hardware error correction for Flash memory?
Yes, the S912XEQ512F1MAGR includes Error Correction Code (ECC) circuitry on its 512KB Flash memory, using a 64+8-bit encoding scheme that provides single-bit error correction and double-bit error detection per word. This hardware-level protection is active during all read operations and is integral to the S912XEQ512F1MAGR's design for automotive applications requiring ASIL-B compliance and long-term reliability in harsh environments.
How many CAN modules does the S912XEQ512F1MAGR support, and what protocol versions are implemented?
The S912XEQ512F1MAGR supports four independent MSCAN modules, each compliant with CAN 2.0A and CAN 2.0B protocols, including support for both standard (11-bit) and extended (29-bit) identifier frames. Each module supports programmable bit rates up to 1Mbps and includes five receive buffers with FIFO storage, three prioritized transmit buffers, and hardware timestamping-features fully leveraged by the S912XEQ512F1MAGR's XGATE coprocessor for FULL-CAN operation.
What is the role of the XGATE coprocessor in the S912XEQ512F1MAGR architecture?
The XGATE coprocessor in the S912XEQ512F1MAGR is a programmable 100MHz RISC engine that executes C-compiled code independently of the main CPU12X core. It handles time-critical peripheral tasks-including CAN mailbox management, LIN frame scheduling, SPI transfers, and ATD trigger sequencing-freeing the S912XEQ512F1MAGR CPU to focus on application logic and diagnostics. Its interrupt-driven architecture ensures deterministic latency for automotive real-time requirements.
Is the S912XEQ512F1MAGR qualified for extended temperature operation, and what is the rated range?
Yes, the S912XEQ512F1MAGR is qualified for extended temperature operation across -40°C to 125°C ambient conditions. This rating is verified per AEC-Q100 Grade 1 requirements and supports deployment in under-hood, trunk, and chassis-mounted automotive modules. The S912XEQ512F1MAGR maintains full functionality-including 50MHz bus operation, Flash programming, and ATD conversion-throughout this range, with internal voltage regulation and low-voltage detection ensuring robustness during thermal transients.
S912XEQ512F1MAGR 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:
S912XEQ512F1MAGR FAQ
1.How can I place an order for S912XEQ512F1MAGR through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512F1MAGR 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 S912XEQ512F1MAGR reliable?
The price and inventory of S912XEQ512F1MAGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512F1MAGR is usually 5 days.
3.What payment methods are accepted for S912XEQ512F1MAGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512F1MAGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512F1MAGR?
S912XEQ512F1MAGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512F1MAGR 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 S912XEQ512F1MAGR?
For technical support, including S912XEQ512F1MAGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512F1MAGR requirements.
6.How does Aetrix verify that S912XEQ512F1MAGR is sourced from the original manufacturer or authorized distributors?
All S912XEQ512F1MAGR 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 S912XEQ512F1MAGR meets industry standards.
7.What is the process for return or replacement of S912XEQ512F1MAGR?
All S912XEQ512F1MAGR units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512F1MAGR, 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 S912XEQ512F1MAGR part is unused and in its original packaging.
Return procedure for S912XEQ512F1MAGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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