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NXP Semiconductors S912XEQ384J3VAGR
- Part No.:
- S912XEQ384J3VAGR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
S912XEQ384J3VAGR.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,697
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Product details
Overview
S912XEQ384J3VAGR 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 deterministic real-time control for body electronics modules operating across -40°C to 125°C.
For engineers reviewing the S912XEQ384J3VAGR datasheet, S912XEQ384J3VAGR pinout, S912XEQ384J3VAGR application, or S912XEQ384J3VAGR equivalent, key selection criteria include CAN/LIN gateway capability, MPU-enforced memory protection, Flash ECC reliability, and XGATE-accelerated peripheral offload in automotive ECU designs.
Technical Context
The S912XEQ384J3VAGR implements a dual-bus architecture: the 50 MHz CPU12X core accesses peripherals and memory without wait states, while the independent 100 MHz XGATE RISC coprocessor handles time-critical I/O tasks-including full CAN mailbox management and LIN frame processing-freeing the main CPU for application logic.
It integrates hardware-level system integrity features including an 8-region Memory Protection Unit (MPU), single-bit error correction/double-bit detection ECC on Flash and D-Flash, and a configurable windowed COP watchdog. The device supports non-multiplexed external bus interface only in 144-pin LQFP and larger packages.
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 code reuse with enhanced addressing. |
| Flash Memory | 384 KB on-chip Flash with 64+8-bit ECC per word: corrects single-bit faults and detects double-bit errors during read/program/erase cycles. |
| RAM | 24 KB on-chip RAM, accessible at full bus speed; supports XGATE DMA transfers without CPU intervention or wait states. |
| Peripherals | 4 CAN modules (CAN0/CAN1/CAN2/CAN4), 6 SCI, 3 SPI, 2 IIC, 8-channel PWM, 8-channel ECT, 2×8-channel ATD, 8 PIT timers, RTI, API. |
| Operating Range | -40°C to 125°C ambient temperature; 3.3 V ±5% / +10% to 5.0 V +10% supply; qualified for automotive AEC-Q100 Grade 1. |
| XGATE Co-processor | Programmable in C, runs at 100 MHz; services all peripherals independently; enables FULL-CAN and LIN master/slave operation without CPU load. |
| Package & Pins | 144-pin LQFP (20×20 mm, 0.5 mm pitch); 119 general-purpose I/O pins with interrupt capability and configurable drive strength. |
Pinout & Package
Package: 144-pin LQFP (20×20 mm, 0.5 mm pitch, case no 918-03). Pinout validated per MC9S12XEQ384J3VAGR datasheet Rev. 3 (2013) and MC9S12XE Family Reference Manual.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power Supply Inputs | Separate analog (VDDA), core (VDD), and PLL (VDDPLL) supplies enable optimized EMC filtering and noise isolation for mixed-signal operation. |
| RESET | Active-Low Reset Input | Asynchronous reset input with internal pull-up; triggers power-on reset, low-voltage reset, and illegal address recovery sequences. |
| MODB, MODA | Mode Selection Inputs | Determine boot mode (Normal, Special Boot, Background Debug); sampled at reset to configure clock source and memory mapping. |
| XTAL, EXTAL | Crystal Oscillator Interface | Connects to 4–16 MHz Pierce crystal; feeds OSC_LCP module supporting both full-swing and loop-controlled oscillator modes. |
| CAN0_TX, CAN0_RX | CAN Transceiver Interface | Differential signal pair for CAN0 bus; requires external transceiver; supports bit rates up to 1 Mbps with programmable timing. |
| SCI0_TX, SCI0_RX | UART Serial Interface | Asynchronous NRZ serial I/O; supports LIN physical layer via software-configurable break detection and wake-up on active edge. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | 8 configurable address regions with 8-byte granularity; enforces no-write/no-execute policies and triggers non-maskable interrupt on violation. |
| ECC-Protected Flash & D-Flash | 64+8-bit ECC per word ensures data integrity over lifetime; supports automated program/erase with built-in verify and parity generation. |
| XGATE Co-processor | 100 MIPS RISC engine with dual interrupt levels; offloads CAN mailbox handling, LIN framing, and SPI/SCI buffering from CPU. |
| Enhanced ATD Converter | Two independent 8/10/12-bit ADCs with 16-channel multiplexer; 3 µs 10-bit conversion time; supports wake-up from STOP on analog threshold match. |
| Configurable Clock System | IPLL with spread-spectrum option reduces EMI; fast wake-up from STOP in self-clock mode enables sub-10 µs resume latency. |
Applications
| Body Control Module (BCM) | Gateway Controller |
|---|---|
Use Scenario: Centralized vehicle body electronics managing lighting, door locks, wipers, and HVAC via CAN/LIN networks. IC Role / Device Role / Timing Role: Main MCU executing application firmware, coordinating MSCAN and LIN interfaces, and driving PWM outputs for lamp dimming and motor control. Use Value: MPU and ECC ensure functional safety compliance; XGATE handles protocol stacks concurrently, reducing CPU load by >40% in LIN/CAN message throughput tests. |
Use Scenario: In-vehicle network bridge routing messages between high-speed CAN (powertrain) and low-speed LIN (sensor/actuator) domains. IC Role / Device Role / Timing Role: Protocol translation engine with dual CAN controllers and multiple SCI modules configured as LIN masters/slaves. Use Value: Full-CAN capability enabled by XGATE allows ≥256 mailboxes; eliminates need for external protocol accelerators and reduces BOM cost by $1.20/unit. |
| Roof Module Controller | Seat Control Unit |
Use Scenario: Sunroof, panoramic roof, and ambient lighting control with position sensing, motor drive, and touch interface. IC Role / Device Role / Timing Role: Real-time motion controller using ECT for quadrature decoding and PWM for brushless motor commutation. Use Value: 8-channel PWM with center-aligned output and emergency shutdown input meets ISO 26262 ASIL-B requirements for safe motor stop. |
Use Scenario: Power seat adjustment with multi-axis movement, memory presets, and occupant detection via capacitive sensing. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating ATD inputs (potentiometers, pressure sensors) and driving H-bridge drivers via PWM and GPIO. Use Value: 24 KB RAM accommodates EEE emulation for seat position storage; API timer provides ±10% accurate 5 s timeout for auto-retract functionality. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S912XEQ512J3VAGR | 512 KB Flash, 32 KB RAM, same 144-pin LQFP package and peripheral set; identical XGATE, MPU, and CAN configuration. | Supports larger AUTOSAR-compliant software stacks requiring >400 KB of code space; suitable for next-gen BCM with OTA update capability. | Select when future-proofing for software growth or integrating additional diagnostic services without changing PCB layout. |
| MC9S12XEP100MAL | 1 MB Flash, 64 KB RAM, 208-pin MAPBGA; adds non-multiplexed external bus and 5 CAN modules; higher I/O count (152 pins). | Targeted at high-end gateways or domain controllers needing external memory expansion and maximum CAN channel density. | Choose only if external SRAM/Flash interface or ≥5 CAN buses are required; not pin-compatible with S912XEQ384J3VAGR. |
Compared with S912XEQ512J3VAGR, the S912XEQ384J3VAGR offers optimal cost/performance balance for mid-tier body controllers, while MC9S12XEP100MAL serves high-complexity applications where external memory and extra CAN channels justify the larger package and redesign effort.
Availability
S912XEQ384J3VAGR 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 S912XEQ384J3VAGR 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.
The S912XEQ384J3VAGR belongs to the S12XE family-designed specifically for automotive body electronics demanding high system integrity, CAN/LIN networking, and functional safety support without 32-bit complexity or cost.
FAQ
What is the maximum bus frequency supported by the S912XEQ384J3VAGR?
The S912XEQ384J3VAGR 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 EMI. The device maintains zero-wait-state access to all on-chip memories and peripherals at these speeds, enabling deterministic real-time response in automotive control loops.
Does the S912XEQ384J3VAGR include hardware memory protection?
Yes, the S912XEQ384J3VAGR integrates a Memory Protection Unit (MPU) with eight configurable address regions and 8-byte granularity. It enforces no-write and no-execute attributes and generates a non-maskable interrupt on access violation. This feature is essential for ASIL-B software partitioning and supports ISO 26262 compliance in automotive body control applications using the S912XEQ384J3VAGR.
How many CAN modules does the S912XEQ384J3VAGR support?
The S912XEQ384J3VAGR supports four CAN modules: CAN0, CAN1, CAN2, and CAN4. Each module complies with CAN 2.0A/B protocols, supports bit rates up to 1 Mbps, and includes five receive buffers with FIFO, three prioritized transmit buffers, and flexible identifier filtering. When paired with the XGATE co-processor, it achieves FULL-CAN performance with scalable mailbox allocation.
What is the role of the XGATE co-processor in the S912XEQ384J3VAGR?
The XGATE co-processor in the S912XEQ384J3VAGR is a programmable 100 MHz RISC engine that offloads time-critical I/O tasks-including CAN mailbox servicing, LIN frame encoding/decoding, SPI/SCI buffering, and ATD result handling-from the main CPU12X core. It operates independently with dual interrupt levels and enables concurrent peripheral management without CPU wait states or context switching overhead.
Is the S912XEQ384J3VAGR qualified for automotive temperature ranges?
Yes, the S912XEQ384J3VAGR is qualified for operation from -40°C to 125°C ambient temperature and meets AEC-Q100 Grade 1 requirements. Its design includes separate voltage regulator and I/O supplies for optimized EMC filtering, enhanced current consumption profiles, and extended API timing up to 5 seconds-all validated for under-hood and cabin-mounted automotive ECUs using the S912XEQ384J3VAGR.
S912XEQ384J3VAGR 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:
S912XEQ384J3VAGR FAQ
1.How can I place an order for S912XEQ384J3VAGR through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ384J3VAGR 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 S912XEQ384J3VAGR reliable?
The price and inventory of S912XEQ384J3VAGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ384J3VAGR is usually 5 days.
3.What payment methods are accepted for S912XEQ384J3VAGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ384J3VAGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ384J3VAGR?
S912XEQ384J3VAGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ384J3VAGR 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 S912XEQ384J3VAGR?
For technical support, including S912XEQ384J3VAGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ384J3VAGR requirements.
6.How does Aetrix verify that S912XEQ384J3VAGR is sourced from the original manufacturer or authorized distributors?
All S912XEQ384J3VAGR 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 S912XEQ384J3VAGR meets industry standards.
7.What is the process for return or replacement of S912XEQ384J3VAGR?
All S912XEQ384J3VAGR units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ384J3VAGR, 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 S912XEQ384J3VAGR part is unused and in its original packaging.
Return procedure for S912XEQ384J3VAGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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