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NXP Semiconductors S912XEQ384F1MAGR
- Part No.:
- S912XEQ384F1MAGR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
S912XEQ384F1MAGR.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,123
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Product details
Overview
S912XEQ384F1MAGR from NXP Semiconductors (formerly Freescale) is a 16-bit automotive microcontroller featuring the CPU12X core, 384 KB on-chip Flash memory with ECC, 24 KB RAM, and integrated MSCAN, XGATE co-processor, and enhanced ATD. It delivers full CAN capability in body control modules and gateway applications operating at -40°C to 125°C.
For engineers reviewing the S912XEQ384F1MAGR datasheet, S912XEQ384F1MAGR pinout, S912XEQ384F1MAGR application, or S912XEQ384F1MAGR equivalent, key selection criteria include its 50 MHz bus frequency, 144-pin LQFP package, MPU-enabled system integrity, dual ATD converters, and XGATE-accelerated CAN/LIN handling - all critical for automotive ECU design under AEC-Q100 stress conditions.
Technical Context
The S912XEQ384F1MAGR implements the CPU12X 16-bit core with enhanced indexed addressing and full MC9S12 instruction set compatibility (excluding five fuzzy instructions). Its Memory Protection Unit defines eight address regions with 8-byte granularity and enforces no-write/no-execute attributes to isolate tasks in automotive safety-critical contexts.
XGATE operates at 100 MIPS with dedicated interrupt levels and handles MSCAN mailbox management, LIN frame generation, and SPI/SCI data movement without CPU intervention. The IPLL clock generator supports spread-spectrum modulation to reduce EMC emissions, while the ATD converter achieves 3 µs 10-bit conversion time with internal oscillator support in STOP mode.
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. |
| Flash Memory | 384 KB with ECC (1-bit correction / 2-bit detection); ensures reliable firmware storage in harsh automotive environments. |
| RAM | 24 KB SRAM; sufficient for real-time task stacks, CAN message buffers, and XGATE co-processor data structures. |
| Bus Frequency | 50 MHz CPU bus / 100 MHz XGATE bus; enables high-throughput peripheral servicing and deterministic interrupt latency. |
| Operating Temp | -40°C to 125°C ambient; qualified for engine bay and powertrain-adjacent body control unit placement. |
| Package | 144-pin LQFP (20×20 mm, 0.5 mm pitch); supports non-multiplexed external bus interface for glueless memory expansion. |
| CAN Modules | 4 × MSCAN modules (CAN0, CAN1, CAN2, CAN4); provides multi-bus gateway routing with FULL-CAN capability via XGATE. |
| ATD Converter | 2 × independent ATD modules, 8/10/12-bit resolution, 16-channel mux, 3 µs 10-bit conversion; supports sensor monitoring with wake-up on analog threshold. |
Pinout & Package
144-pin LQFP (20×20 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3. Pinout validated per MC9S12XEQ384F1MAGR datasheet Rev. 1.1 (NXP Document ID: MC9S12XEQ384DS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDX | Power supply inputs | Dedicated supplies for core logic, analog subsystem, and external bus enable independent EMC filtering. |
| VSS, VSSA, VSSX | Ground returns | Separate ground planes minimize noise coupling between digital, analog, and bus domains. |
| RESET | Active-low reset input | Asynchronous assertion forces hardware reset; supports external watchdog and POR/LVD recovery sequences. |
| CRGCLK, EXTAL, XTAL | Oscillator interface | Supports 4–16 MHz crystal or full-swing Pierce oscillator; feeds IPLL for stable 50 MHz bus clock generation. |
| PORTA–PORTP | General-purpose I/O | Up to 119 GPIO pins with configurable pull-up/down, hysteresis, and drive strength; supports wake-up from STOP/WAIT modes. |
| CAN0TX/CAN0RX–CAN4TX/CAN4RX | CAN transceiver interfaces | Differential signal pairs compliant with ISO 11898-2; each pair connects directly to external CAN PHY without level-shifting. |
| SCI0TX/SCI0RX–SCI2TX/SCI2RX | Serial communication channels | Three full-duplex SCI modules supporting LIN physical layer (break detect, sync field) and IrDA RZI format. |
| SP0MOSI/SP0MISO/SP0SCK/SP0SS | SPI0 master/slave interface | Configurable 8/16-bit transfers; double-buffered for continuous data streaming to sensors or EEPROMs. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | 8 programmable address regions with 8-byte granularity; enforces no-write/no-execute policies to prevent unintended code execution or data corruption. |
| XGATE Co-processor | 100 MIPS RISC engine running at 2× bus frequency; offloads MSCAN mailbox management, LIN frame assembly, and SPI/SCI DMA to free CPU for application logic. |
| ECC-Protected Flash | 64-bit data + 8-bit syndrome bits per word; corrects single-bit errors and detects double-bit faults during read/write, meeting ASIL-B functional safety requirements. |
| Enhanced ATD | Two independent converters with internal oscillator support in STOP mode; enables battery-powered sensor wake-up without external clock source. |
| IPLL Clock Generator | Frequency-modulated PLL with spread-spectrum option; reduces peak radiated emissions by >10 dBµV/m in 150 kHz–30 MHz band per CISPR 25 Class 5. |
| Background Debug (BDM) | Single-wire interface supporting non-intrusive flash programming, real-time memory inspection, and breakpoint-triggered trace capture via xDBG module. |
Applications
| Body Control Module (BCM) | Gateway Controller |
|---|---|
Use Scenario: Centralized vehicle body electronics managing lighting, door locks, window lifts, and HVAC actuators across multiple LIN sub-nodes. IC Role / Device Role / Timing Role: Primary MCU executing application logic, coordinating CAN/LIN traffic, and driving PWM-controlled loads via on-chip 8-channel PWM module. Use Value: XGATE handles LIN frame scheduling and CAN message filtering, reducing CPU load by ~40% and enabling deterministic response to switch events within 50 µs. |
Use Scenario: In-vehicle network bridge routing messages between high-speed powertrain CAN, low-speed body CAN, and LIN clusters. IC Role / Device Role / Timing Role: Real-time protocol translator using four MSCAN modules and three SCI ports, with XGATE managing mailbox arbitration and buffer management. Use Value: Full CAN capability with up to 32 mailboxes (via XGATE) enables concurrent handling of 12+ CAN IDs without CPU polling, cutting gateway latency to <150 µs per frame. |
| Roof Module Controller | Seat Control Unit |
Use Scenario: Sunroof, panoramic roof, and ambient lighting controller interfacing with LIN slaves (motor drivers, position sensors) and main body CAN bus. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating analog inputs (potentiometers, thermistors) and digital signals (switches, Hall sensors) via ATD and GPIO. Use Value: Dual ATD converters with 3 µs conversion time and wake-up-on-threshold allow immediate sunroof stop on obstruction detection, meeting ISO 13849 PLd requirements. |
Use Scenario: Motorized seat positioning system with memory presets, heating elements, and occupancy detection via capacitive sensing. IC Role / Device Role / Timing Role: Safety-critical actuator controller using PWM outputs for motor direction/speed, ATD for temperature feedback, and MSCAN for diagnostic reporting. Use Value: MPU-enforced memory isolation prevents firmware corruption from seat motor fault currents, ensuring fail-safe shutdown without system-wide reset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEQ512F1MAGR | 512 KB Flash, 32 KB RAM, same 144-pin LQFP package and peripheral set; higher memory headroom for future firmware updates. | Preferred for new designs requiring extended bootloader space or OTA update capability without changing PCB layout. | Select when firmware growth projection exceeds 320 KB or when D-Flash-based parameter storage >16 KB is required. |
| MC9S12XET256F1MAGR | 256 KB Flash, 16 KB RAM, 3 × CAN, 2 × SCI, same XGATE/MPU/ECC architecture; reduced peripheral count and memory footprint. | Suitable for cost-sensitive entry-level modules where only one CAN bus and basic LIN connectivity are needed. | Choose for simplified body nodes (e.g., mirror control) where full 4-CAN capability and dual ATD are unnecessary. |
Compared with S912XEQ384F1MAGR, MC9S12XEQ512F1MAGR offers scalable memory for evolving feature sets without layout changes, while MC9S12XET256F1MAGR reduces BOM cost and power consumption in less complex nodes - both retain identical safety mechanisms and CAN/LIN timing behavior.
Availability
S912XEQ384F1MAGR is available at Aetrix Electronics and suitable for automotive body control, gateway systems, and seat/roof module designs requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 Grade 1 qualification.
Supply support for S912XEQ384F1MAGR 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 applications, with deep expertise in ASIL-certified microcontrollers.
The S12XE family was designed specifically for automotive body electronics requiring functional safety (ASIL-B), real-time CAN/LIN networking, and robust operation across extended temperature ranges - targeting cost-sensitive yet reliability-critical ECUs.
FAQ
What is the maximum bus frequency supported by the S912XEQ384F1MAGR?
The S912XEQ384F1MAGR supports a maximum CPU bus frequency of 50 MHz and an XGATE bus frequency of 100 MHz. This performance level is achieved using the internal IPLL clock generator with a 4–16 MHz crystal input. The S912XEQ384F1MAGR maintains this speed across its full -40°C to 125°C operating range when powered within the specified 3.3 V ±5% to 5.0 V +10% supply window.
Does the S912XEQ384F1MAGR include hardware memory protection?
Yes, the S912XEQ384F1MAGR integrates a Memory Protection Unit (MPU) that defines eight programmable address regions with granularity down to 8 bytes. It enforces no-write and no-execute attributes and triggers a non-maskable interrupt on access violation. This MPU functionality is active in both Supervisor and User modes and is a foundational element for achieving ASIL-B compliance in automotive software architectures.
How many CAN modules does the S912XEQ384F1MAGR support, and what protocol versions are implemented?
The S912XEQ384F1MAGR supports four MSCAN modules (CAN0, CAN1, CAN2, and CAN4), each compliant with CAN 2.0A and 2.0B protocols. These modules support standard and extended identifier formats, programmable bit rates up to 1 Mbps, and hardware filtering via 2×32-bit, 4×16-bit, or 8×8-bit acceptance masks. FULL-CAN capability is enabled when used with the XGATE co-processor for mailbox management.
What analog-to-digital capabilities does the S912XEQ384F1MAGR provide?
The S912XEQ384F1MAGR features two independent ATD converters, each supporting 8/10/12-bit resolution with a 16-channel analog multiplexer. Conversion time is 3 µs for 10-bit results, and both modules include internal oscillators allowing operation in STOP mode. Wake-up on analog comparison match is supported, making the S912XEQ384F1MAGR suitable for battery-powered sensor monitoring in always-on vehicle subsystems.
Is the S912XEQ384F1MAGR qualified for automotive use, and what is its temperature grade?
Yes, the S912XEQ384F1MAGR is AEC-Q100 qualified for automotive applications and rated for operation from -40°C to 125°C (Grade 1). It includes built-in system integrity features such as Power-on Reset (POR), Low-Voltage Detect (LVD) with interrupt/reset, and a configurable windowed COP watchdog - all essential for meeting functional safety requirements in body electronics and gateway ECUs.
S912XEQ384F1MAGR 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:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 24K 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:
S912XEQ384F1MAGR FAQ
1.How can I place an order for S912XEQ384F1MAGR through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ384F1MAGR 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 S912XEQ384F1MAGR reliable?
The price and inventory of S912XEQ384F1MAGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ384F1MAGR is usually 5 days.
3.What payment methods are accepted for S912XEQ384F1MAGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ384F1MAGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ384F1MAGR?
S912XEQ384F1MAGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ384F1MAGR 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 S912XEQ384F1MAGR?
For technical support, including S912XEQ384F1MAGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ384F1MAGR requirements.
6.How does Aetrix verify that S912XEQ384F1MAGR is sourced from the original manufacturer or authorized distributors?
All S912XEQ384F1MAGR 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 S912XEQ384F1MAGR meets industry standards.
7.What is the process for return or replacement of S912XEQ384F1MAGR?
All S912XEQ384F1MAGR units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ384F1MAGR, 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 S912XEQ384F1MAGR part is unused and in its original packaging.
Return procedure for S912XEQ384F1MAGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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