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NXP Semiconductors S912XEQ512F1MAA
- Part No.:
- S912XEQ512F1MAA
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
S912XEQ512F1MAA.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
S912XEQ512F1MAA 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 operating at -40°C to 125°C ambient temperature.
For engineers reviewing the S912XEQ512F1MAA datasheet, S912XEQ512F1MAA pinout, S912XEQ512F1MAA application, or S912XEQ512F1MAA equivalent, key selection criteria include its 50 MHz bus frequency, 144-pin LQFP package with non-multiplexed external bus support, MPU-enabled system integrity, and XGATE-accelerated LIN/CAN protocol handling.
Technical Context
The S912XEQ512F1MAA implements the CPU12X 16-bit core with full MC9S12 instruction set compatibility (excluding five fuzzy instructions), supports up to 50 MHz bus clock via IPLL, and integrates an XGATE RISC co-processor running at 100 MHz for offloading CAN/LIN communication, PWM, and ADC servicing without CPU intervention.
It features Memory Protection Unit (MPU) with eight configurable address regions down to 8-byte granularity, ECC-enabled Flash (1-bit correction / 2-bit detection), and dual-voltage regulator architecture enabling separate I/O and core supply domains for optimized EMC filtering and robust operation across automotive voltage transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU12X 16-bit core, compatible with MC9S12 ISA (no MEM/WAV/REV instructions), enabling legacy code reuse with enhanced indexed addressing. |
| Flash Memory | 512 KB Flash with ECC (64 data + 8 syndrome bits), supporting single-bit correction and double-bit detection for ASIL-B–capable firmware storage. |
| RAM | 32 KB on-chip RAM, used for XGATE code/data, stack, and real-time buffers - sufficient for concurrent CAN/LIN message handling and sensor processing. |
| Bus Frequency | 50 MHz maximum CPU bus frequency, enabling deterministic execution of time-critical body control tasks within strict automotive timing budgets. |
| XGATE Performance | 100 MHz RISC co-processor delivering up to 100 MIPS, independently managing up to 6 CAN modules and LIN SCI peripherals without CPU overhead. |
| Operating Temp | -40°C to 125°C ambient range, qualified for under-hood and powertrain-adjacent automotive locations per AEC-Q100 Grade 0 requirements. |
| I/O Count | 119 general-purpose I/O pins (per 144-LQFP package), including 24 edge-sensitive wake-up capable pins for STOP/WAIT mode recovery. |
| ADC Resolution | 8/10/12-bit ATD converter with 8-channel multiplexer, 3 µs 10-bit conversion time, and internal oscillator support for analog sensing during low-power modes. |
Pinout & Package
Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch, case no. 918-03), with non-multiplexed external bus interface enabled for glueless connection to external SRAM/Flash.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDX | Core & I/O Power Supply | Dual-supply inputs: VDD (core/regulator) and VDDX (I/O) enable independent EMC filtering and voltage domain isolation per ISO 11898-3. |
| RESET | Active-Low Reset Input | Asynchronous reset with internal POR/LVD circuitry; asserts on undervoltage or illegal address access, ensuring fail-safe initialization. |
| CRGCLK, EXTAL, XTAL | Oscillator Interface | Supports 4–16 MHz crystal (Pierce) or 2–40 MHz full-swing crystal; CRG generates stable IPLL-derived clocks with spread-spectrum option for EMC reduction. |
| CAN0_TX, CAN0_RX | CAN Transceiver Interface | Differential pair for CAN0 physical layer; supports 1 Mbps bit rate and loopback/self-test mode for functional safety diagnostics. |
| SCI0_TX, SCI0_RX | LIN Bus Interface | SCI0 configured as LIN master/slave; supports IrDA RZI format and break-detect for LIN 2.0 compliance when accelerated by XGATE. |
| PORTH[7:0] | General-Purpose I/O Bank | 8-bit port with configurable pull-up/down, hysteresis, and drive strength; supports edge-triggered wake-up from STOP mode. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | 8 programmable address regions with 8-byte granularity, enforcing no-write/no-execute policies and triggering NMI on violation - critical for ASIL-B partitioning. |
| XGATE Co-Processor | Programmable in C, handles full CAN protocol stack (mailbox management, filtering, timestamping) and LIN frame generation, freeing CPU for application logic. |
| ECC-Protected Flash | 64-bit data + 8-bit syndrome encoding enables real-time single-bit error correction during program execution - required for ISO 26262 fault-tolerant firmware. |
| Enhanced ATD Converter | 10-bit resolution, 3 µs conversion time, internal oscillator, and wake-up-on-compare capability allow battery-current monitoring and thermal sensing in STOP mode. |
| MSCAN Module | Up to 5 CAN controllers (S912XEQ512F1MAA supports 4), each with 3 transmit buffers, 5 receive FIFO buffers, and 16-bit message timestamping for deterministic network scheduling. |
| Non-Multiplexed External Bus | Available on 144-LQFP package; supports asynchronous 8/16-bit memory mapping with two wait-state generators - enables expansion with external EEPROM or display controller. |
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 control logic, managing PWM-driven power drivers, reading analog sensors (temperature, current), and coordinating LIN slave nodes. Use Value: XGATE offloads LIN communication and CAN message filtering, enabling sub-100 µs response to door unlock commands while maintaining 50 MHz CPU bandwidth for safety-critical diagnostics. |
Use Scenario: Protocol translation between high-speed CAN FD backbone and low-speed LIN subsystems (e.g., mirror controls, seat modules). IC Role / Device Role / Timing Role: Dual-bus bridge MCU with simultaneous CAN0/CAN1 and SCI0/SCI1 interfaces, using XGATE to manage mailbox arbitration and frame reassembly. Use Value: Full-CAN capability with 5 receive buffers and hardware timestamping ensures deterministic latency (<500 µs) for gateway message forwarding, meeting AUTOSAR COM stack timing constraints. |
| Smart Junction Box | Chassis Domain Controller |
|
Use Scenario: Power distribution and load switching unit managing fuses, relays, and electronic circuit breakers across vehicle domains. IC Role / Device Role / Timing Role: Real-time power manager with ATD-based current sensing, PWM-controlled MOSFET gates, and CAN-based fault reporting. Use Value: MPU-enforced memory isolation prevents firmware corruption during load dump events; ECC Flash ensures bootloader integrity after 100k+ power cycles. |
Use Scenario: Integrated chassis controller consolidating ABS, ESC, and suspension ECU functions into a single domain architecture. IC Role / Device Role / Timing Role: Safety-enhanced MCU executing ASIL-B software partitions, with dedicated XGATE channels for wheel speed signal acquisition and CAN message prioritization. Use Value: 125°C qualification and dual-voltage regulator design sustain operation during engine bay thermal soak; 16-bit ECT timers provide µs-accurate wheel speed capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP100MAG | 1 MB Flash, 64 KB RAM, 208-pin MAPBGA, supports 5 CAN modules and 8 SCI ports - higher memory and peripheral count than S912XEQ512F1MAA. | Targeted at flagship body controllers requiring >512 KB firmware space and expanded I/O for multi-zone HVAC or advanced lighting systems. | Select when future firmware growth headroom or additional CAN/LIN channels are required; not pin-compatible due to 208-pin BGA packaging. |
| SPC560P50L5 | 32-bit Power Architecture core, 512 KB Flash, 48 KB RAM, integrated e200z0 core, supports CAN FD and Ethernet AVB - different architecture and toolchain. | Designed for next-generation domain controllers migrating from 16-bit to 32-bit platforms with CAN FD and functional safety (ISO 26262 ASIL-B certified). | Choose for new designs targeting long-term scalability and CAN FD readiness; requires full software re-architecture and CodeWarrior-to-S32DS migration. |
Compared with MC9S12XEP100MAG, S912XEQ512F1MAA offers identical peripheral IP (MSCAN, XGATE, ATD) in a cost-optimized 144-LQFP package but with reduced Flash/RAM; versus SPC560P50L5, it provides proven 16-bit toolchain continuity and lower BOM cost, though lacking CAN FD and ASIL-B certification out-of-box.
Availability
S912XEQ512F1MAA is available at Aetrix Electronics and suitable for automotive body control, gateway, junction box, and chassis domain applications requiring stable component supply, long lifecycle support, and AEC-Q100 qualified silicon.
Supply support for S912XEQ512F1MAA 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 S12XE family - including S912XEQ512F1MAA - was designed specifically for automotive body electronics and gateway applications demanding enhanced system integrity, real-time determinism, and AEC-Q100 Grade 0 reliability.
FAQ
What is the maximum bus frequency supported by the S912XEQ512F1MAA?
The S912XEQ512F1MAA supports a maximum CPU bus frequency of 50 MHz, achieved via its internally filtered Frequency Modulated Phase Locked Loop (IPLL). This enables deterministic execution of time-critical automotive tasks such as PWM generation and CAN message scheduling, while the separate 100 MHz XGATE bus handles parallel I/O processing without contention.
Does the S912XEQ512F1MAA include hardware memory protection?
Yes, the S912XEQ512F1MAA integrates a Memory Protection Unit (MPU) with eight configurable address regions down to 8-byte granularity. It enforces no-write and no-execute attributes and triggers a non-maskable interrupt on access violation - a foundational feature for ASIL-B software partitioning and functional safety compliance in automotive applications.
Which CAN protocol versions does the S912XEQ512F1MAA support?
The S912XEQ512F1MAA supports CAN 2.0A and 2.0B protocols through its integrated MSCAN modules. It handles both standard (11-bit) and extended (29-bit) identifier frames, supports programmable bit rates up to 1 Mbps, and provides hardware timestamping and FIFO-based receive buffering - all essential for automotive body and gateway networks.
Is the S912XEQ512F1MAA qualified for automotive temperature ranges?
Yes, the S912XEQ512F1MAA is qualified for operation from -40°C to 125°C ambient temperature, meeting AEC-Q100 Grade 0 requirements. Its dual-voltage regulator architecture, separate VDD/VDDX supplies, and robust oscillator design ensure reliable operation in under-hood and powertrain-adjacent environments subject to thermal cycling and voltage transients.
How does the XGATE co-processor enhance real-time performance in the S912XEQ512F1MAA?
The XGATE co-processor in the S912XEQ512F1MAA runs at 100 MHz and executes C-programmable code independently of the CPU12X core. It accelerates CAN/LIN protocol stacks, ADC data acquisition, and PWM updates - reducing CPU load by up to 70% in gateway applications and enabling sub-100 µs response times for safety-critical body control events.
S912XEQ512F1MAA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-QFP
- Series:
- HCS12X
- Packaging:
- Tray
- 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:
S912XEQ512F1MAA FAQ
1.How can I place an order for S912XEQ512F1MAA through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512F1MAA 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 S912XEQ512F1MAA reliable?
The price and inventory of S912XEQ512F1MAA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512F1MAA is usually 5 days.
3.What payment methods are accepted for S912XEQ512F1MAA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512F1MAA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512F1MAA?
S912XEQ512F1MAA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512F1MAA 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 S912XEQ512F1MAA?
For technical support, including S912XEQ512F1MAA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512F1MAA requirements.
6.How does Aetrix verify that S912XEQ512F1MAA is sourced from the original manufacturer or authorized distributors?
All S912XEQ512F1MAA 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 S912XEQ512F1MAA meets industry standards.
7.What is the process for return or replacement of S912XEQ512F1MAA?
All S912XEQ512F1MAA units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512F1MAA, 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 S912XEQ512F1MAA part is unused and in its original packaging.
Return procedure for S912XEQ512F1MAA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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