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NXP Semiconductors S912XEQ512BVAG
- Part No.:
- S912XEQ512BVAG
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
S912XEQ512BVAG.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,622
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Product details
Overview
S912XEQ512BVAG from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12X microcontroller featuring a 512 KB on-chip Flash memory, 32 KB RAM, and an S12X CPU core operating at up to 50 MHz. It integrates dual CAN 2.0B controllers, 12-bit ADC with 16 channels, 8-channel PWM, and XGATE co-processor for offloading real-time tasks-designed for automotive body control modules and industrial motor control systems.
For engineers reviewing the S912XEQ512BVAG datasheet, S912XEQ512BVAG pinout, S912XEQ512BVAG application, or S912XEQ512BVAG equivalent, key selection criteria include its 176-pin LQFP package, 5V tolerant I/O, integrated MSCAN peripherals, and support for BDM debugging via BKGD pin-critical for ECU firmware development and functional safety validation.
Technical Context
The S912XEQ512BVAG implements the S12X CPU12XV2 core with enhanced instruction set and pipeline improvements over legacy S12, enabling deterministic interrupt latency and efficient C-code execution. Its memory subsystem includes 512 KB Flash organized in 2-KB sectors with EEPROM emulation capability and 32 KB RAM with parity protection.
Peripheral integration follows the MC9S12XE family architecture: dual MSCAN modules with time-triggered communication support, 12-bit ADC0/ADC1 with simultaneous sampling, and XGATE V3 coprocessor handling SCI/SPI/IIC interrupts autonomously-reducing main CPU load in high-throughput sensor and actuator interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | S12X CPU12XV2, 16-bit, 50 MHz max frequency-enables real-time deterministic control loops with sub-1 µs interrupt response. |
| Flash Memory | 512 KB on-chip Flash with 2-KB sector erase-supports in-field firmware updates and EEPROM emulation for parameter storage. |
| RAM | 32 KB on-chip RAM with parity checking-ensures data integrity in safety-critical applications per ISO 26262 ASIL-B requirements. |
| CAN Interfaces | Dual MSCAN 2.0B modules with TTCAN support-enables redundant bus communication and time-synchronized messaging in vehicle networks. |
| ADC | Two 12-bit ADCs (ADC0/ADC1), 16 total channels, 8 µs conversion time-supports simultaneous sampling of motor phase currents and temperature sensors. |
| PWM | 8-channel 16-bit PWM with center-aligned mode and dead-time insertion-directly drives 3-phase inverter gate drivers in motor control. |
| XGATE Coprocessor | XGATE V3 RISC engine with 4 KB RAM, autonomous peripheral servicing-offloads UART, SPI, and CAN ISR handling from main CPU. |
Pinout & Package
Package: 176-pin LQFP (24 × 24 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BKGD | Background Debug Pin | Single-wire BDM interface for non-intrusive flash programming and real-time debugging without halting CPU. |
| RESET | Active-low Reset Input | Asynchronous reset assertion clears CPU registers and initiates boot vector fetch from Flash address 0xFFFE. |
| VDDA/VSSA | Analog Power/Ground | Isolated analog supply pins reduce noise coupling into ADC reference path-critical for <1 LSB INL accuracy. |
| CAN0TX/CAN0RX | CAN Controller Channel 0 | Differential transmit/receive signals compliant with ISO 11898-2; require external transceiver for physical layer connection. |
| PT0–PT7 | Port T Data Pins | 8-bit general-purpose I/O port with programmable pull-up, reduced drive strength, and polarity inversion-used for encoder quadrature inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | Configurable region-based access control prevents unauthorized code/data access-required for ASIL-B software partitioning. |
| Voltage Regulator (VREG) | On-chip 3.3 V regulator with internal bandgap reference-eliminates need for external LDO in 5 V system designs. |
| Enhanced Capture Timer (ECT) | 16-bit timer with input capture, output compare, and PWM generation-measures engine crankshaft position with ±1 tick resolution. |
| Security Module | Flash security byte and backdoor key access-prevents unauthorized read-out of firmware during production or field service. |
| External Bus Interface (EBI) | 8/16-bit multiplexed address/data bus with programmable wait states-enables expansion with external SRAM or display controllers. |
Applications
| Automotive Body Control Unit | Industrial Motor Drive |
|---|---|
Use Scenario: Centralized control of door locks, lighting, wipers, and HVAC in passenger vehicles. IC Role / Device Role / Timing Role: Main system controller executing LIN gateway functions, PWM dimming, and CAN message routing between domains. Use Value: Dual MSCAN interfaces enable seamless integration with powertrain and infotainment CAN buses while XGATE handles LIN protocol stack overhead. | Use Scenario: Closed-loop control of PMSM/BLDC motors in HVAC blowers, pumps, and compressors. IC Role / Device Role / Timing Role: Real-time motion controller generating space-vector PWM and sampling current feedback via synchronized ADC triggers. Use Value: 8-channel PWM with dead-time insertion and 12-bit ADC with 8 µs conversion ensure precise torque regulation and thermal monitoring. |
| Off-Highway Vehicle Telematics | Commercial Vehicle Gateway |
Use Scenario: Data acquisition and telematics reporting in construction equipment with harsh EMC environments. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating J1939 CAN messages, GPS time stamps, and analog sensor inputs. Use Value: 5V-tolerant I/O and extended temperature range (−40°C to 125°C) ensure reliable operation in cab-mounted control boxes. | Use Scenario: Multi-protocol gateway bridging J1939, CAN FD, and LIN networks in heavy-duty trucks. IC Role / Device Role / Timing Role: Protocol translator with message filtering, prioritization, and store-and-forward buffering. Use Value: Dual MSCAN modules operate independently at different bit rates (250 kbps and 500 kbps), enabling concurrent diagnostics and real-time control traffic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP100MALR | Same S12X core, 1 MB Flash, 64 KB RAM, 176-pin LQFP-but lacks XGATE coprocessor and has different ADC channel count (12 vs. 16). | Targeted at higher-memory ECU designs where XGATE offload is not required; supports larger bootloader and diagnostic stacks. | Select when firmware complexity demands >512 KB Flash but real-time peripheral offload is secondary. |
| S912XDP512J1MAL | Identical Flash/RAM and XGATE, but uses 144-pin LQFP package and omits second MSCAN module-only one CAN interface. | Suitable for cost-sensitive single-CAN applications like seat control modules or mirror actuators. | Choose when CAN redundancy is unnecessary and PCB area constraints favor smaller footprint. |
Compared with MC9S12XEP100MALR and S912XDP512J1MAL, the S912XEQ512BVAG uniquely balances dual-CAN capability, XGATE acceleration, and 512 KB Flash in a 176-pin LQFP-making it optimal for mid-tier automotive ECUs requiring both communication redundancy and deterministic real-time processing.
Availability
S912XEQ512BVAG is available at Aetrix Electronics and suitable for automotive body control units, industrial motor drives, off-highway telematics systems, and commercial vehicle gateways requiring stable component supply across long product lifecycles.
Supply support for S912XEQ512BVAG 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-with deep expertise in microcontrollers, radar, and secure edge processing.
The S912XEQ512BVAG belongs to the legacy HCS12X family, designed specifically for cost-optimized, ASIL-B-capable automotive ECUs requiring robust CAN networking, analog signal conditioning, and deterministic real-time control.
FAQ
What is the maximum operating frequency of the S912XEQ512BVAG?
The S912XEQ512BVAG operates at a maximum CPU frequency of 50 MHz, achieved using the internal PLL with external crystal oscillator input (typically 4–8 MHz). This clock speed enables sub-microsecond interrupt latency and sufficient MIPS for real-time motor control algorithms running on the S12X CPU12XV2 core. The S912XEQ512BVAG's timing specifications are validated across its full temperature range (−40°C to 125°C).
Does the S912XEQ512BVAG support CAN FD?
No, the S912XEQ512BVAG does not support CAN FD. It integrates two legacy MSCAN 2.0B modules compliant with ISO 11898-1, supporting only classical CAN up to 1 Mbps. CAN FD capability requires newer S32K or MPC57xx families. For S912XEQ512BVAG users needing higher bandwidth, external CAN FD controllers interfaced via SPI or parallel bus are required.
How is debug functionality implemented on the S912XEQ512BVAG?
Debug functionality on the S912XEQ512BVAG is implemented exclusively through the Background Debug Mode (BDM) interface using the BKGD pin. It supports non-intrusive flash programming, real-time variable monitoring, and breakpoint insertion without halting the CPU. No JTAG or SWD interface is present-the S912XEQ512BVAG relies solely on Freescale/NXP BDM protocol via dedicated debugger hardware such as the U-MULTILINK or PE Micro Cyclone.
What packaging options are available for the S912XEQ512BVAG?
The S912XEQ512BVAG is offered exclusively in a 176-pin LQFP package (24 × 24 mm, 0.5 mm pitch) with exposed thermal pad. This package provides mechanical robustness and thermal performance suitable for under-hood automotive applications. No QFP, QFN, or BGA variants exist for this specific part number-alternative pin counts or packages correspond to different derivatives (e.g., S912XDP512J1MAL uses 144-pin LQFP).
Is the S912XEQ512BVAG qualified for automotive use?
Yes, the S912XEQ512BVAG is AEC-Q100 Grade 2 qualified (−40°C to +105°C ambient), with extended characterization up to 125°C junction temperature. It meets automotive reliability standards including HTOL, ESD (HBM ≥2 kV), and EMC immunity per ISO 11452. Its integrated MPU, Flash security, and RAM parity align with ISO 26262 ASIL-B requirements for body electronics and chassis control applications.
S912XEQ512BVAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 144-LQFP
- 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:
- 119
- 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 24x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XEQ512BVAG FAQ
1.How can I place an order for S912XEQ512BVAG through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512BVAG 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 S912XEQ512BVAG reliable?
The price and inventory of S912XEQ512BVAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512BVAG is usually 5 days.
3.What payment methods are accepted for S912XEQ512BVAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512BVAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512BVAG?
S912XEQ512BVAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512BVAG 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 S912XEQ512BVAG?
For technical support, including S912XEQ512BVAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512BVAG requirements.
6.How does Aetrix verify that S912XEQ512BVAG is sourced from the original manufacturer or authorized distributors?
All S912XEQ512BVAG 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 S912XEQ512BVAG meets industry standards.
7.What is the process for return or replacement of S912XEQ512BVAG?
All S912XEQ512BVAG units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512BVAG, 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 S912XEQ512BVAG part is unused and in its original packaging.
Return procedure for S912XEQ512BVAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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