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NXP Semiconductors S912XEQ384BVAGR
- Part No.:
- S912XEQ384BVAGR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
S912XEQ384BVAGR.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,504
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Product details
Overview
S912XEQ384BVAGR 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 performance in body control modules and gateway applications requiring -40°C to 125°C operation and functional safety support.
For engineers reviewing the S912XEQ384BVAGR datasheet, S912XEQ384BVAGR pinout, S912XEQ384BVAGR application, or S912XEQ384BVAGR equivalent, this page provides verified technical context, package mapping, real-world use cases, and validated alternative options for automotive ECU design and replacement planning.
Technical Context
The S912XEQ384BVAGR implements the CPU12X core with 50 MHz bus frequency and supports up to 100 MHz XGATE execution. It integrates six MSCAN modules (CAN0–CAN4), four SCI interfaces, two SPI modules, and an 8-channel 10-bit ATD converter with 3 µs conversion time.
It features Memory Protection Unit (MPU) with eight configurable address regions, ECC-enabled Flash with 1-bit correction/2-bit detection, and dual-voltage regulator architecture enabling separate I/O and core supply domains for optimized EMC filtering and low-voltage detection at 3.3 V ±5% / 5.0 V +10%.
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 without recompilation. |
| Flash Memory | 384 KB Flash with ECC (64 data + 8 syndrome bits); provides single-bit fault correction and double-bit fault detection for ASIL-B–capable firmware storage. |
| RAM | 24 KB on-chip RAM; supports fast XGATE data movement and real-time buffer handling without CPU intervention. |
| Operating Voltage | 3.3 V ±5% or 5.0 V +10%; dual-regulator architecture allows independent I/O and core supply rails for noise isolation in automotive harness environments. |
| Temperature Range | -40°C to 125°C; qualified for under-hood automotive applications including body control modules and gateway ECUs. |
| Bus Frequency | 50 MHz CPU bus frequency; enables deterministic real-time response for LIN/CAN message scheduling and PWM timing-critical actuation. |
| XGATE Performance | 100 MIPS RISC co-processor; handles full CAN mailbox management and LIN frame processing independently of main CPU, freeing 70–80% CPU bandwidth. |
Pinout & Package
Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch, case no 918-03). Pinout conforms to MC9S12XE family standard layout with dedicated CANH/CANL, SCI0–SCI3, SPI0–SPI1, ATD0–ATD1, PWM0–PWM7, and MPU/XGATE debug signal assignments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power Supply Inputs | Separate 3.3/5.0 V supplies for digital logic, analog subsystem, and PLL circuitry-enables independent EMC filtering and voltage monitoring per domain. |
| CAN0H / CAN0L | CAN Transceiver Interface | Differential pair supporting ISO 11898-2 compliant physical layer; connects directly to external CAN transceiver without level-shifting. |
| SCI0TX / SCI0RX | UART Serial Interface | Full-duplex NRZ interface supporting LIN 2.0 master/slave protocol when paired with XGATE; used for diagnostic and sub-node communication. |
| ATD0[0–7] | Analog Input Channels | Eight dedicated analog inputs for sensor monitoring (e.g., temperature, voltage, potentiometer); supports internal reference and wake-up on threshold crossing. |
| PWM0–PWM7 | Output Compare Channels | Eight 8-bit or four 16-bit PWM outputs with center/left-aligned modes; drives LED dimming, motor speed control, and solenoid actuation with emergency shutdown input. |
| RESET / BKGD | Reset & Debug Interface | Single-wire BDM interface (BKGD) enables non-intrusive flash programming and real-time debugging; RESET supports POR, LVD, and COP-triggered assertion. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | Eight programmable address regions with 8-byte granularity; enforces no-execute and no-write attributes to isolate firmware partitions and prevent unintended memory access. |
| Enhanced XGATE Co-Processor | Programmable in C; offloads CAN/LIN protocol stacks, ATD scanning, and SPI data transfers-reducing main CPU load by up to 80% in gateway applications. |
| ECC-Protected Flash | 64-bit data + 8-bit syndrome encoding per word; corrects single-bit errors and detects double-bit faults during read operations-critical for ASIL-B compliance. |
| Multi-Channel MSCAN | Six independent CAN modules (CAN0–CAN4); supports concurrent communication across powertrain, chassis, and body networks with hardware FIFO and identifier filtering. |
| Configurable API Timer | Asynchronous periodic interrupt with trimmable ±10% accuracy and 0.2 ms resolution; operates in Full Stop mode for ultra-low-power wake-up scheduling (e.g., every 500 ms). |
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: Main MCU executing body control logic, managing LIN slave nodes (e.g., mirror controls), and routing CAN messages between comfort and infotainment networks. Use Value: XGATE handles LIN frame assembly/disassembly and CAN mailbox servicing while CPU runs application firmware-enabling deterministic <100 µs response to switch events. |
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-role controller acting as CAN master on one bus and LIN master on another; performs header-based message routing and priority arbitration. Use Value: Six MSCAN modules allow simultaneous connection to multiple CAN domains; XGATE manages time-critical filtering rules-reducing latency to <50 µs per routed message. |
| Smart Junction Box | Roof Module Controller |
Use Scenario: Power distribution and load monitoring unit integrating fuse diagnostics, relay control, and battery voltage supervision. IC Role / Device Role / Timing Role: Real-time supervisor using ATD channels for rail voltage sensing, PWM outputs for solid-state relay drivers, and COP watchdog for fail-safe shutdown. Use Value: Built-in low-voltage detect (LVD) and power-on reset (POR) ensure safe power sequencing; ECC Flash prevents corrupted configuration storage after repeated hot-swap cycles. |
Use Scenario: Integrated sunroof, panoramic roof, and ambient lighting controller with position feedback and thermal protection. IC Role / Device Role / Timing Role: Sensor fusion hub reading potentiometers and thermistors via ATD, generating synchronized PWM for LED dimming, and communicating status over CAN. Use Value: 10-bit ATD with internal oscillator enables accurate analog sampling during STOP mode; 24 KB RAM buffers position history for anti-pinch algorithm execution without external memory. |
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, 208-pin MAPBGA; adds non-multiplexed external bus and extra I/O (152 pins vs. 119). | Targeted at high-complexity gateways requiring external memory expansion and >10 CAN/LIN channels. | Select when needing >384 KB Flash or external memory interface; not pin-compatible due to different package and pin count. |
| S912XEQ512JAG | 512 KB Flash, same 144-LQFP package; retains identical peripheral set (6 MSCAN, 4 SCI, 2 SPI) and XGATE capability. | Used in next-tier BCMs requiring larger firmware image space for OTA update support and expanded diagnostic services. | Drop-in replacement for S912XEQ384BVAGR with increased Flash capacity; same pinout, voltage, and temperature specs-no PCB changes required. |
Compared with S912XEQ384BVAGR, MC9S12XEP100MAG offers higher memory and I/O scalability but requires board redesign, while S912XEQ512JAG provides seamless Flash upgrade within identical mechanical and electrical constraints-making it ideal for incremental feature enhancement without layout revision.
Availability
S912XEQ384BVAGR is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateways, smart junction boxes, and roof module controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S912XEQ384BVAGR 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 back to Motorola and Freescale.
The S912XEQ384BVAGR belongs to the MC9S12XE family, designed specifically for automotive body electronics and gateway applications demanding enhanced system integrity, functional safety support, and real-time deterministic performance.
FAQ
What is the maximum operating temperature range supported by the S912XEQ384BVAGR?
The S912XEQ384BVAGR is rated for operation from -40°C to 125°C, meeting AEC-Q100 Grade 0 requirements for under-hood automotive applications. This specification is validated across all silicon revisions and applies to both CPU and peripheral functionality-including MSCAN, ATD, and XGATE modules-ensuring reliable performance in engine bay environments.
Does the S912XEQ384BVAGR include built-in error correction for Flash memory?
Yes, the S912XEQ384BVAGR includes ECC (Error Correction Code) on its 384 KB Flash memory, using 64 data bits plus 8 syndrome bits per word. This enables automatic 1-bit fault correction and 2-bit fault detection during read operations-supporting ASIL-B compliance per ISO 26262 when implemented with appropriate software partitioning.
How many CAN modules does the S912XEQ384BVAGR integrate, and what protocols do they support?
The S912XEQ384BVAGR integrates six MSCAN modules (CAN0 through CAN4), each compliant with CAN 2.0A and 2.0B protocols. They support standard and extended identifiers, programmable bit rates up to 1 Mbps, and hardware FIFO buffering-enabling concurrent communication across multiple vehicle networks without CPU overhead when managed by XGATE.
Is the S912XEQ384BVAGR pin-compatible with other MC9S12XE family members in the same package?
Yes, the S912XEQ384BVAGR is pin-compatible with other 144-pin LQFP variants in the MC9S12XE family-including S912XEQ512JAG and S912XET256JAG-sharing identical pin assignments for power, ground, CAN, SCI, SPI, ATD, and PWM signals. This enables direct substitution where Flash/RAM scaling meets application needs.
What debug interface does the S912XEQ384BVAGR provide, and is it supported by modern tools?
The S912XEQ384BVAGR uses the single-wire Background Debug Mode (BDM) interface, fully supported by NXP's S32DS IDE, legacy CodeWarrior for S12X, and third-party tools from P&E Micro and iSystem. It enables non-intrusive flash programming, real-time register inspection, and hardware breakpoint triggering without requiring JTAG headers or additional pins.
S912XEQ384BVAGR 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XEQ384BVAGR FAQ
1.How can I place an order for S912XEQ384BVAGR through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ384BVAGR 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 S912XEQ384BVAGR reliable?
The price and inventory of S912XEQ384BVAGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ384BVAGR is usually 5 days.
3.What payment methods are accepted for S912XEQ384BVAGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ384BVAGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ384BVAGR?
S912XEQ384BVAGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ384BVAGR 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 S912XEQ384BVAGR?
For technical support, including S912XEQ384BVAGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ384BVAGR requirements.
6.How does Aetrix verify that S912XEQ384BVAGR is sourced from the original manufacturer or authorized distributors?
All S912XEQ384BVAGR 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 S912XEQ384BVAGR meets industry standards.
7.What is the process for return or replacement of S912XEQ384BVAGR?
All S912XEQ384BVAGR units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ384BVAGR, 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 S912XEQ384BVAGR part is unused and in its original packaging.
Return procedure for S912XEQ384BVAGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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