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NXP Semiconductors S912XEQ512F0MALR
- Part No.:
- S912XEQ512F0MALR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
S912XEQ512F0MALR.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,035
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Product details
Overview
S912XEQ512F0MALR 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 at up to 50 MHz bus frequency and operates across -40°C to 125°C.
For engineers reviewing the S912XEQ512F0MALR datasheet, S912XEQ512F0MALR pinout, S912XEQ512F0MALR application, or S912XEQ512F0MALR equivalent, key selection considerations include its 144-pin LQFP package, 4 CAN modules, 6 SCI interfaces, 3 SPI modules, 8-channel PWM, and MPU-enabled system integrity for ASIL-B–capable automotive designs.
Technical Context
The S912XEQ512F0MALR implements a dual-core architecture: the main CPU12X executes application code at up to 50 MHz bus speed, while the programmable XGATE co-processor runs at 100 MHz and independently handles time-critical peripheral tasks-including full CAN mailbox management and LIN protocol stack offload-freeing the CPU for higher-layer logic.
It integrates hardware-level system integrity features including a Memory Protection Unit (MPU) with eight configurable address regions (8-byte granularity), Flash ECC supporting 1-bit correction/2-bit detection, and a windowed COP watchdog. Its IPLL oscillator supports spread-spectrum clocking to reduce EMC emissions without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU12X 16-bit core, instruction-set compatible with MC9S12 except five removed fuzzy instructions; enables legacy S12 code reuse with enhanced addressing. |
| Flash Memory | 512 KB with ECC (64 data + 8 syndrome bits); enables single-bit fault correction and double-bit fault detection during read/program/erase cycles. |
| RAM | 32 KB SRAM; supports fast XGATE/CPU data exchange and real-time buffer storage without wait states. |
| Operating Voltage | 3.3 V ±5% / +10% to 5.0 V +10%; supports direct connection to automotive battery rails with internal voltage regulator separation for EMC optimization. |
| Temperature Range | -40°C to 125°C; qualified for under-hood automotive applications requiring extended thermal reliability. |
| Bus Frequency | 50 MHz maximum CPU bus frequency; delivers deterministic real-time response for body control timing-critical functions like PWM-driven lighting and pump control. |
| XGATE Performance | 100 MHz bus frequency, up to 100 MIPS RISC throughput; handles full CAN protocol processing and LIN frame generation without CPU intervention. |
Pinout & Package
Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch, case no 918-03). Pinout validated per MC9S12XE Data Sheet Rev. 7 and S912XEQ512F0MALR device-specific pin assignment tables.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply inputs | Separate analog (VDDA), digital (VDD), and PLL (VDDPLL) supplies enable independent EMC filtering and noise isolation for ATD and clock subsystems. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; initiates POR, COP timeout, or MPU violation recovery sequence. |
| XTAL, EXTAL | Crystal oscillator interface | Supports 4–16 MHz Pierce crystal; connects directly to on-chip OSC_LCP module for low-jitter clock generation. |
| MSCAN0_TX, MSCAN0_RX | CAN0 differential transceiver pins | Direct interface to external CAN transceiver (e.g., TJA1042); supports 1 Mbps bit rate with loopback and listen-only modes. |
| SCI0_TX, SCI0_RX | LIN/SCI0 serial interface | Configurable as LIN master/slave physical layer; supports break detection and IrDA RZI format for diagnostic communication. |
| PORTA[7:0] | General-purpose I/O port | 8-bit bidirectional port with configurable pull-up/down, hysteresis, and drive strength; used for discrete sensor inputs or LED driver outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | Eight user-definable memory regions (8-byte granularity) with no-write/no-execute attributes and non-maskable interrupt on violation-enables ASIL-B software partitioning. |
| XGATE Co-processor | Programmable in C, handles full CAN/LIN protocol stacks and ATD trigger sequencing autonomously-reduces CPU load by >60% in gateway use cases. |
| ECC-Protected Flash | 64-bit data + 8-bit syndrome per word; corrects single-bit errors on-the-fly during execution-eliminates need for external error-handling firmware overhead. |
| Enhanced ATD Converter | Two independent 10-bit ATD modules (8-channel each), 3 µs conversion time, internal oscillator support in STOP mode-enables battery-voltage monitoring during sleep. |
| IPLL Clock Generator | Frequency-modulated PLL with spread-spectrum option; reduces peak EMI by >10 dB without external filtering components-simplifies automotive EMC compliance. |
Applications
| Body Control Module (BCM) | Vehicle Gateway |
|---|---|
|
Use Scenario: Centralized control of door locks, interior lighting, HVAC actuators, and window lift motors in modern passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing body domain logic, managing PWM-driven lamp dimming, reading analog cabin temperature sensors, and routing CAN messages between LIN slave nodes and high-speed CAN backbone. Use Value: MPU-enforced isolation prevents infotainment-initiated faults from disrupting safety-critical door lock actuation; XGATE offloads LIN polling to maintain <50 µs response latency. |
Use Scenario: Protocol translation and message filtering between powertrain CAN, chassis CAN, and body LIN networks in multi-bus vehicle architectures. IC Role / Device Role / Timing Role: Real-time bridge MCU with four independent MSCAN modules and six SCI ports-routes priority messages (e.g., brake pedal status) while suppressing non-critical diagnostics during active driving. Use Value: Full-CAN capability via XGATE enables concurrent handling of >32 mailboxes; eliminates external CAN controller ICs and reduces BOM count by two per gateway node. |
| Roof Module Controller | Seat Control Unit |
|
Use Scenario: Integrated sunroof, panoramic roof, and ambient lighting control with anti-pinch sensing and position feedback. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating Hall-effect position data, current-sense motor feedback, and LIN commands from center console; drives H-bridge motor drivers via 16-bit PWM. Use Value: 125°C-rated operation ensures reliability near glass surfaces; ECC Flash guarantees firmware integrity after repeated solar thermal cycling. |
Use Scenario: Motorized seat adjustment with memory presets, heating elements, and occupancy detection via capacitive sensing. IC Role / Device Role / Timing Role: Safety-aware controller using ATD channels for heater thermistor monitoring and ECT timers for motor stall detection; triggers emergency shutdown on overtemperature or current fault. Use Value: MPU-configured RAM regions isolate seat heating firmware from position control code-meets ISO 26262 ASIL-B partitioning requirements without external safety monitor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP100MAG | 1 MB Flash, 64 KB RAM, 5 CAN, 208-pin MAPBGA; no D-Flash or EEE support in base configuration. | Targeted at high-end gateways requiring larger code space and more CAN channels; lacks emulated EEPROM for parameter storage. | Select when >512 KB Flash and ≥5 CAN interfaces are required; verify PCB layout compatibility due to 208-pin BGA footprint. |
| S912XDP512J0MALR | Same Flash/RAM size but S12XD-family silicon; no MPU, no ECC Flash, no XGATE v2 enhancements (e.g., improved interrupt latency). | Suitable for cost-sensitive body modules where ASIL-B compliance is not mandated; requires external error-detection logic for Flash. | Choose only for legacy S12D/S12XD migration paths where MPU/ECC are unnecessary; avoid for new ASIL-B designs. |
Compared with S912XEQ512F0MALR, MC9S12XEP100MAG offers greater memory and CAN capacity but requires BGA rework and lacks D-Flash flexibility, while S912XDP512J0MALR sacrifices system integrity features to reduce cost-making S912XEQ512F0MALR the optimal balance of ASIL-B readiness, peripheral integration, and 144-pin LQFP manufacturability.
Availability
S912XEQ512F0MALR is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateways, roof controllers, and seat control units requiring stable component supply, long lifecycle support, and AEC-Q100 qualification.
Supply support for S912XEQ512F0MALR 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 S12XE family-including S912XEQ512F0MALR-is designed specifically for ASIL-B–capable automotive body electronics, delivering enhanced system integrity through MPU, ECC Flash, and XGATE offload to simplify functional safety certification.
FAQ
What is the maximum operating temperature range certified for S912XEQ512F0MALR?
S912XEQ512F0MALR is qualified for continuous operation from -40°C to 125°C per AEC-Q100 Grade 0 specification. This rating applies to the full 144-pin LQFP package and validates its suitability for under-hood and near-glass automotive locations where thermal stress exceeds standard commercial-grade limits. The on-chip temperature sensor and LVD circuitry remain fully functional across this range.
Does S912XEQ512F0MALR support CAN FD or only classical CAN 2.0?
S912XEQ512F0MALR supports only Classical CAN 2.0A/B protocols-not CAN FD. Its MSCAN modules are hardware-limited to 1 Mbps bit rates and 8-byte payload frames. CAN FD functionality requires newer S32K or MagnaChip-based controllers; S912XEQ512F0MALR remains appropriate for legacy vehicle platforms where classical CAN dominates body and gateway networks.
How many CAN modules does S912XEQ512F0MALR integrate, and what are their identifiers?
S912XEQ512F0MALR integrates four MSCAN modules: CAN0, CAN1, CAN2, and CAN4. Per the S12XE Family Product Brief Table 1, the "Q" derivative (e.g., S912XEQ512) supports exactly four CAN interfaces. CAN3 is excluded in this variant; identifier mapping follows standard S12X register naming conventions and is confirmed in the MC9S12XE Reference Manual Rev. 7.
Is external memory interfacing supported on S912XEQ512F0MALR, and if so, which packages enable it?
S912XEQ512F0MALR supports non-multiplexed external bus interfacing-but only in the 144-pin LQFP and 208-pin MAPBGA packages. The 144-pin LQFP variant (like S912XEQ512F0MALR) includes dedicated chip select, address, and data lines enabling glue-less connection to asynchronous SRAM and NOR Flash. The 112-pin and 80-pin variants omit this interface entirely.
What debug interfaces are available on S912XEQ512F0MALR, and are they production-safe?
S912XEQ512F0MALR includes a single-wire Background Debug Mode (BDM) interface compliant with IEEE 1149.1, plus an xDBG module with four hardware comparators and 64-entry trace buffer. Both interfaces remain accessible in production firmware when security is disabled; however, BDM access is blocked if flash security bits are programmed-ensuring debug port protection meets automotive cybersecurity requirements.
S912XEQ512F0MALR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 112-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:
- 91
- 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 16x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XEQ512F0MALR FAQ
1.How can I place an order for S912XEQ512F0MALR through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512F0MALR 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 S912XEQ512F0MALR reliable?
The price and inventory of S912XEQ512F0MALR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512F0MALR is usually 5 days.
3.What payment methods are accepted for S912XEQ512F0MALR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512F0MALR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512F0MALR?
S912XEQ512F0MALR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512F0MALR 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 S912XEQ512F0MALR?
For technical support, including S912XEQ512F0MALR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512F0MALR requirements.
6.How does Aetrix verify that S912XEQ512F0MALR is sourced from the original manufacturer or authorized distributors?
All S912XEQ512F0MALR 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 S912XEQ512F0MALR meets industry standards.
7.What is the process for return or replacement of S912XEQ512F0MALR?
All S912XEQ512F0MALR units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512F0MALR, 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 S912XEQ512F0MALR part is unused and in its original packaging.
Return procedure for S912XEQ512F0MALR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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