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NXP Semiconductors S912XEQ512J3MAAR
- Part No.:
- S912XEQ512J3MAAR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
S912XEQ512J3MAAR.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,233
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Product details
Overview
S912XEQ512J3MAAR 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 converter. It delivers full CAN performance in body control modules and gateway applications operating at -40°C to 125°C ambient temperature.
For engineers reviewing the S912XEQ512J3MAAR datasheet, S912XEQ512J3MAAR pinout, S912XEQ512J3MAAR application, or S912XEQ512J3MAAR 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 S912XEQ512J3MAAR implements a 16-bit CPU12X core with 50 MHz bus frequency and a dedicated 100 MIPS XGATE RISC co-processor running at 100 MHz. It integrates five MSCAN modules supporting CAN 2.0A/B up to 1 Mbps, with FULL-CAN capability enabled when paired with XGATE.
Memory subsystem includes 512 KB Flash with 64+8-bit ECC (1-bit correction / 2-bit detection), 32 KB RAM, and 32 KB D-Flash with automated program/erase algorithms. The device supports non-multiplexed external bus interface only in 144-pin LQFP and 208-pin MAPBGA packages - confirmed for this variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU12X 16-bit core compatible with MC9S12 instruction set (excluding five fuzzy instructions); enables legacy code reuse with enhanced addressing. |
| Flash Memory | 512 KB with ECC (64 data + 8 syndrome bits); provides single-bit fault correction and double-bit fault detection for ASIL-B–capable systems. |
| XGATE Co-processor | Programmable RISC engine running at 100 MHz; handles CAN/LIN messaging, PWM, and SPI transfers without CPU intervention or wait states. |
| MSCAN Modules | Four CAN controllers (CAN0, CAN1, CAN2, CAN4); supports standard/extended frames, 0–8 byte payloads, and software-compatible CAN 2.0A/B. |
| ATD Converter | One 10-bit analog-to-digital converter with 8-channel multiplexer and 3 µs conversion time; enables sensor monitoring in body electronics. |
| Operating Temperature | -40°C to 125°C; qualified for under-hood and powertrain-adjacent automotive applications requiring extended thermal robustness. |
| Package | 144-pin LQFP (20×20 mm, 0.5 mm pitch, case no 918-03); supports non-multiplexed external bus for glue-less memory expansion. |
Pinout & Package
Package: 144-pin LQFP (20×20 mm, 0.5 mm pitch, case no 918-03), with non-multiplexed external bus interface support.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply inputs | Separate 3.3–5.0 V supplies for core, analog, and PLL domains enable optimized EMC filtering and noise isolation. |
| RESET | Active-low reset input | Asynchronous reset with internal POR and low-voltage detection; initiates boot sequence and clears MPU state. |
| XTAL, EXTAL | Crystal oscillator terminals | Supports 4–16 MHz Pierce oscillator; enables IPLL clock generation with spread-spectrum option for reduced EMI. |
| CS0–CS3 | Chip select outputs | Configure external memory access timing via wait-state generators or EWAIT deassertion; enable direct interface to SRAM/Flash. |
| PORTA–PORTP | General-purpose I/O ports | Up to 119 GPIO pins with configurable pull-up/down, hysteresis, and drive strength; support wake-up from STOP/WAIT modes. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | 8 address regions per task with 8-byte granularity; enforces no-write/no-execute policies and triggers NMI on violation for ASIL-B runtime integrity. |
| Enhanced EEE (Emulated EEPROM) | Automated file handling via internal controller; buffers EEE data in RAM on reset and manages pending D-Flash writes without CPU overhead. |
| Full-CAN with XGATE | Offloads all CAN message scheduling, filtering, and buffer management; enables >100% utilization of CAN bandwidth while freeing CPU for application logic. |
| API Timer | Trimmable ±10% accuracy with timeout range 0.2 ms to ~13 s; operates in Full Stop mode for ultra-low-power cyclic wake-up in battery-sensitive modules. |
| PWM Module | 8-channel × 8-bit or 4-channel × 16-bit outputs with center/left-aligned modes and emergency shutdown input; drives lighting and motor control directly. |
Applications
| Body Control Module (BCM) | Gateway Controller |
|---|---|
|
Use Scenario: Centralized control of door locks, interior lighting, window lifts, and HVAC actuators in modern vehicle architectures. IC Role / Device Role / Timing Role: Primary MCU executing body logic, managing LIN slave nodes (e.g., mirror controls), and routing CAN messages between chassis and infotainment networks. Use Value: XGATE handles LIN frame assembly and CAN arbitration independently, reducing CPU load by >40% versus standalone S12X solutions. |
Use Scenario: Protocol translation and message filtering between high-speed powertrain CAN and low-speed body LIN networks. IC Role / Device Role / Timing Role: Dual-bus interface MCU performing real-time CAN-to-LIN bridging, diagnostic message routing, and network wake-up coordination. Use Value: Four MSCAN modules and XGATE-based mailbox management enable concurrent handling of 32+ CAN IDs and 16+ LIN IDs with <10 µs latency. |
| Roof Module Controller | Seat Control Unit |
|
Use Scenario: Integrated sunroof, panoramic roof, and ambient lighting control with position sensing and anti-pinch safety logic. IC Role / Device Role / Timing Role: Real-time motion controller using ATD for potentiometer feedback, PWM for motor drive, and MSCAN for status reporting to BCM. Use Value: On-chip 10-bit ATD with 3 µs conversion and hardware-triggered wake-up ensures sub-50 ms response to obstruction events. |
Use Scenario: Motorized seat adjustment with memory presets, heating elements, and occupancy detection via pressure sensors. IC Role / Device Role / Timing Role: Safety-critical actuator controller managing dual H-bridge drivers, thermistor monitoring, and CAN diagnostics. Use Value: MPU-enforced memory partitioning isolates seat position firmware from heater 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 |
|---|---|---|---|
| MC9S12XEP768MAL | 768 KB Flash, 48 KB RAM, 208-pin MAPBGA; adds third ATD module and 8-channel ECT vs. S912XEQ512J3MAAR's single ATD and 4-channel ECT. | Targeted at higher-complexity gateways requiring redundant ADC paths and expanded timer resources for multi-sensor fusion. | Select when needing >512 KB Flash, additional analog capture channels, or BGA footprint for space-constrained PCB layouts. |
| SPC560P50L5CEFAY | 32-bit Power Architecture core, 512 KB Flash, 48 KB RAM, 3x CAN FD, 2x LIN; lacks XGATE but adds hardware CRC and DMA. | Designed for next-gen body domain controllers requiring CAN FD bandwidth and ISO 26262 ASIL-B certified toolchain support. | Choose for CAN FD migration paths, higher deterministic interrupt latency (<1 µs), or production alignment with ST's SPC5 automotive platform. |
Compared with MC9S12XEP768MAL and SPC560P50L5CEFAY, the S912XEQ512J3MAAR offers optimal cost-performance balance for established S12X-based body electronics designs, retaining full toolchain compatibility while delivering verified ECC, MPU, and XGATE offload capabilities without architectural migration.
Availability
S912XEQ512J3MAAR is available at Aetrix Electronics and suitable for automotive body control modules, gateway controllers, roof modules, and seat control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S912XEQ512J3MAAR 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 markets, with deep heritage in automotive microcontrollers dating to Motorola and Freescale.
The S912XEQ512J3MAAR belongs to the S12XE family, engineered specifically for automotive body electronics and gateway applications demanding enhanced system integrity through MPU, Flash ECC, and XGATE co-processing.
FAQ
What is the maximum bus frequency supported by the S912XEQ512J3MAAR?
The S912XEQ512J3MAAR supports a maximum CPU bus frequency of 50 MHz and an XGATE bus frequency of 100 MHz. These frequencies are achieved using the internal IPLL clock generator with optional spread-spectrum modulation to reduce electromagnetic emissions. The device maintains full peripheral operation without wait states at these speeds, as confirmed in the MC9S12XEPB Rev. 9 product brief.
Does the S912XEQ512J3MAAR include Error Correction Code (ECC) for Flash memory?
Yes, the S912XEQ512J3MAAR includes ECC protection on its 512 KB Flash memory, implemented as 64 data bits plus 8 syndrome bits per word. This configuration enables single-bit error correction and double-bit error detection during read operations, a critical feature for ASIL-B–compliant automotive applications. The ECC functionality is hardware-automated and requires no software intervention.
How many CAN modules does the S912XEQ512J3MAAR integrate, and what protocol versions are supported?
The S912XEQ512J3MAAR integrates four MSCAN modules (CAN0, CAN1, CAN2, CAN4), each compliant with CAN 2.0A and 2.0B protocols. It supports both standard (11-bit) and extended (29-bit) identifier formats, programmable bit rates up to 1 Mbps, and features like FIFO receive buffers, prioritized transmit buffers, and bus-off recovery. FULL-CAN capability is enabled when used with the XGATE co-processor.
What package type and pin count does the S912XEQ512J3MAAR use?
The S912XEQ512J3MAAR is packaged in a 144-pin LQFP (low-profile quad flat-pack) with 20×20 mm body size and 0.5 mm pitch (case number 918-03). This package supports the non-multiplexed external bus interface, enabling glue-less connection to external SRAM and Flash devices - a capability confirmed for the 144-pin variant in the S12XE Family Product Brief.
Is the S912XEQ512J3MAAR qualified for automotive temperature ranges?
Yes, the S912XEQ512J3MAAR is qualified for operation across -40°C to 125°C ambient temperature, meeting AEC-Q100 Grade 0 requirements. This qualification covers all core functions including Flash programming, XGATE execution, MSCAN communication, and ATD conversion, making it suitable for under-hood and powertrain-proximate applications where thermal robustness is mandatory.
S912XEQ512J3MAAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-QFP
- 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:
- 59
- 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 8x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XEQ512J3MAAR FAQ
1.How can I place an order for S912XEQ512J3MAAR through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512J3MAAR 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 S912XEQ512J3MAAR reliable?
The price and inventory of S912XEQ512J3MAAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512J3MAAR is usually 5 days.
3.What payment methods are accepted for S912XEQ512J3MAAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512J3MAAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512J3MAAR?
S912XEQ512J3MAAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512J3MAAR 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 S912XEQ512J3MAAR?
For technical support, including S912XEQ512J3MAAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512J3MAAR requirements.
6.How does Aetrix verify that S912XEQ512J3MAAR is sourced from the original manufacturer or authorized distributors?
All S912XEQ512J3MAAR 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 S912XEQ512J3MAAR meets industry standards.
7.What is the process for return or replacement of S912XEQ512J3MAAR?
All S912XEQ512J3MAAR units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512J3MAAR, 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 S912XEQ512J3MAAR part is unused and in its original packaging.
Return procedure for S912XEQ512J3MAAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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