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NXP Semiconductors S912XEQ512BVALR
- Part No.:
- S912XEQ512BVALR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
S912XEQ512BVALR.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,878
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Product details
Overview
S912XEQ512BVALR 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 with -40°C to 125°C operation and 50 MHz bus frequency.
For engineers reviewing the S912XEQ512BVALR datasheet, S912XEQ512BVALR pinout, S912XEQ512BVALR application, or S912XEQ512BVALR 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 S912XEQ512BVALR implements a 16-bit CPU12X core with full MC9S12 instruction set compatibility (excluding five fuzzy instructions), supports up to 50 MHz bus frequency, and integrates an XGATE co-processor running at 100 MIPS with programmable C-language firmware for peripheral offload. Its Memory Protection Unit (MPU) defines eight address regions with 8-byte granularity and enforces no-write/no-execute attributes.
It features dual ATD converters (8/10/12-bit resolution, 16-channel mux, 3 µs 10-bit conversion time), five MSCAN modules (CAN 2.0A/B compliant, up to 1 Mbps, FULL-CAN with XGATE), and a Frequency Modulated PLL (IPLL) with spread-spectrum capability for EMC reduction - all operating across -40°C to 125°C ambient range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU12X 16-bit core, fully compatible with MC9S12 ISA (minus MEM/WAV/REV instructions), enabling legacy code reuse without recompilation. |
| Flash Memory | 512 KB with ECC: 1-bit correction / 2-bit detection per 64-bit word, supporting secure, field-reliable program storage in automotive environments. |
| XGATE Co-processor | Programmable RISC engine running at 100 MIPS; handles CAN/LIN messaging, data movement, and bit manipulation independently of CPU. |
| MSCAN Modules | Four CAN controllers (CAN0–CAN3), each CAN 2.0A/B compliant, supporting 0–8 byte payloads, 1 Mbps bit rate, and FULL-CAN operation when paired with XGATE. |
| ATD Converter | Two independent 8/10/12-bit ADCs with 16-channel multiplexer, 3 µs 10-bit conversion time, and wake-up-on-compare capability from STOP mode. |
| Operating Temperature | -40°C to 125°C ambient range - qualified for under-hood automotive applications including body control units and gateways. |
| Package | 144-pin LQFP (20×20 mm, 0.5 mm pitch, case 918-03), non-multiplexed external bus interface enabled, suitable for glue-less expansion memory interfacing. |
Pinout & Package
144-pin LQFP (20×20 mm, 0.5 mm pitch, case number 918-03), with non-multiplexed external bus interface available. Pin functions validated per MC9S12XE Data Sheet "Port Availability by Package Option" table for 144LQFP configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDX | Power supply inputs | Separate 5V supplies for core logic (VDD), analog (VDDA), and external bus (VDDX) enable optimized EMC filtering and noise isolation. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; triggers power-on reset (POR), low-voltage detect (LVD), and COP watchdog timeout recovery. |
| XTAL, EXTAL | Crystal oscillator terminals | Support 4–16 MHz Pierce crystal (OSC_LCP); enables precise clock generation with built-in transconductance tuning for reliable startup. |
| CS0–CS3 | Chip select outputs | Four configurable chip selects for external memory mapping; each supports wait-state timeout or EWAIT deassertion for asynchronous device interfacing. |
| PORTA–PORTP | General-purpose I/O ports | Up to 119 GPIO pins (144LQFP variant); all inputs feature hysteresis and configurable pull-up/down; outputs support drive strength selection. |
| CAN0TX/CAN0RX | CAN0 differential signal pair | Dedicated TX/RX pins for CAN0 controller; support high-speed (up to 1 Mbps), fault-tolerant communication in automotive networks. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | Eight configurable 8-byte-granularity address regions with no-write/no-execute enforcement and non-maskable violation interrupt - critical for ASIL-B software partitioning. |
| ECC-enabled Flash | 64-bit data + 8-bit syndrome bits per word enable real-time single-bit error correction and double-bit fault detection - essential for ISO 26262 functional safety compliance. |
| XGATE Offload Engine | Handles CAN message queuing, LIN frame assembly, and SPI/SCI DMA transfers autonomously - frees CPU for application logic and reduces interrupt latency. |
| IPLL with Spread Spectrum | Internally filtered phase-locked loop with configurable frequency modulation reduces electromagnetic emissions without external components - simplifies EMC certification. |
| Enhanced ATD Wake-up | ADC comparison match can wake CPU from STOP mode within microseconds - enables ultra-low-power sensor monitoring in body electronics. |
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 domain firmware, managing PWM-driven power drivers, reading analog sensors, and coordinating LIN slave nodes via integrated SCI. Use Value: XGATE offloads LIN protocol handling and CAN message buffering, reducing CPU load by >40% and enabling deterministic response to switch events. |
Use Scenario: Protocol translation between high-speed CAN-FD backbone and low-speed LIN clusters in distributed vehicle architectures. IC Role / Device Role / Timing Role: Dual-bus bridge MCU routing messages between CAN0–CAN3 and LIN-capable SCIs, with real-time prioritization and error logging. Use Value: Four independent MSCAN modules and XGATE-managed mailbox queues allow concurrent handling of 32+ CAN IDs and 16+ LIN frames without CPU intervention. |
| Smart Junction Box | Seat Control Unit |
Use Scenario: Power distribution and load switching for front/rear fuse boxes with diagnostics, short-circuit protection, and energy monitoring. IC Role / Device Role / Timing Role: System-level power manager using PWM outputs to drive high-side switches, ATD to monitor rail voltages/currents, and CAN to report faults. Use Value: ECC Flash ensures firmware integrity during over-the-air updates; MPU isolates safety-critical load-control tasks from diagnostic services. |
Use Scenario: Real-time adjustment of seat position, heating, ventilation, and massage functions based on driver preferences and occupancy sensing. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating signals from potentiometers, thermistors, and pressure mats via ATD and ECT modules, then actuating motors via PWM. Use Value: Dual ATD converters with simultaneous sampling and 3 µs conversion enable synchronized multi-sensor acquisition for closed-loop thermal control. |
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, 5 CAN modules vs. 4 on S912XEQ512BVALR; same CPU12X core and XGATE architecture. | Targeted at higher-integration gateway or ADAS domain controllers requiring larger code footprint and more CAN channels. | Select when >512 KB Flash or >4 CAN interfaces are required; not pin-compatible due to 208-pin MAPBGA packaging. |
| SPC560P50L5CEFAY | 32-bit Power Architecture core, 512 KB Flash, 64 KB RAM, 3 CAN FD, 2 LIN, AEC-Q100 Grade 1 (−40°C to 125°C). | Designed for next-generation body/gateway systems needing CAN FD bandwidth, higher compute throughput, and ISO 26262 ASIL-B support. | Choose for new designs requiring CAN FD, higher safety certification, or migration path beyond 16-bit architecture; requires PCB redesign. |
Compared with MC9S12XEP100MAG and SPC560P50L5CEFAY, the S912XEQ512BVALR offers optimal cost-performance balance for established 16-bit automotive platforms - retaining full toolchain compatibility while delivering ECC, MPU, and XGATE features needed for ASIL-B–aligned body electronics without architectural overhaul.
Availability
S912XEQ512BVALR is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateways, smart junction boxes, and seat control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S912XEQ512BVALR 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 automotive, industrial, IoT, and communications infrastructure solutions, with deep expertise in microcontrollers, RF, and security technologies.
The S912XEQ512BVALR belongs to the MC9S12XE family - engineered specifically for automotive body electronics and gateway applications demanding enhanced system integrity, functional safety support, and seamless migration from legacy S12 platforms.
FAQ
What is the maximum bus frequency supported by the S912XEQ512BVALR?
The S912XEQ512BVALR supports a maximum CPU bus frequency of 50 MHz and an XGATE bus frequency of 100 MHz. This timing is achieved using the internal IPLL with external crystal input (4–16 MHz) and is fully operational across the -40°C to 125°C temperature range. The S912XEQ512BVALR's clock generator includes spread-spectrum modulation to reduce EMI without external components.
Does the S912XEQ512BVALR include Error Correction Code (ECC) for Flash memory?
Yes, the S912XEQ512BVALR implements ECC on its 512 KB Flash memory using 64 data bits plus 8 syndrome bits per word, enabling real-time 1-bit error correction and 2-bit fault detection. This ECC implementation is hardware-accelerated and transparent to software, meeting requirements for ISO 26262 ASIL-B compliance in automotive applications where S912XEQ512BVALR is deployed.
How many CAN modules does the S912XEQ512BVALR integrate, and what protocols do they support?
The S912XEQ512BVALR integrates four MSCAN modules (CAN0–CAN3), each compliant with CAN 2.0A and 2.0B specifications, supporting standard and extended identifiers, 0–8 byte payloads, and bit rates up to 1 Mbps. When used with the XGATE co-processor, these modules deliver FULL-CAN functionality - including unlimited mailboxes and autonomous message handling - without CPU overhead.
What package type and pin count does the S912XEQ512BVALR use?
The S912XEQ512BVALR is packaged in a 144-pin LQFP (20×20 mm, 0.5 mm pitch, case number 918-03) with non-multiplexed external bus interface enabled. This package provides 119 general-purpose I/O pins and supports glue-less interfacing to external SRAM and Flash devices via CS0–CS3 chip selects and dedicated address/data buses.
Is the XGATE co-processor on the S912XEQ512BVALR programmable in C language?
Yes, the XGATE co-processor on the S912XEQ512BVALR is fully programmable in ANSI C using the CodeWarrior Development Studio toolchain. It executes at 100 MIPS, handles data movement, logic operations, and peripheral servicing independently of the CPU, and supports two interrupt levels for prioritized task handling - all confirmed in the MC9S12XE Family Product Brief Rev. 9.
S912XEQ512BVALR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 112-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:
- 91
- 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 16x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XEQ512BVALR FAQ
1.How can I place an order for S912XEQ512BVALR through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512BVALR 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 S912XEQ512BVALR reliable?
The price and inventory of S912XEQ512BVALR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512BVALR is usually 5 days.
3.What payment methods are accepted for S912XEQ512BVALR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512BVALR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512BVALR?
S912XEQ512BVALR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512BVALR 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 S912XEQ512BVALR?
For technical support, including S912XEQ512BVALR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512BVALR requirements.
6.How does Aetrix verify that S912XEQ512BVALR is sourced from the original manufacturer or authorized distributors?
All S912XEQ512BVALR 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 S912XEQ512BVALR meets industry standards.
7.What is the process for return or replacement of S912XEQ512BVALR?
All S912XEQ512BVALR units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512BVALR, 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 S912XEQ512BVALR part is unused and in its original packaging.
Return procedure for S912XEQ512BVALR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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