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NXP Semiconductors S912XEQ512BCAG
- Part No.:
- S912XEQ512BCAG
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
S912XEQ512BCAG.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,964
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Product details
Overview
S912XEQ512BCAG from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12X microcontroller featuring a 50 MHz S12X CPU core, 512 KB on-chip Flash memory, 32 KB RAM, and integrated XGATE coprocessor for offloading time-critical tasks. It supports CAN 2.0B, multiple SCI/SPI/IIC interfaces, and 12-bit ADC with 16 channels - deployed in automotive body control modules requiring deterministic real-time response and functional safety support.
For engineers reviewing the S912XEQ512BCAG datasheet, S912XEQ512BCAG pinout, S912XEQ512BCAG application, or S912XEQ512BCAG equivalent, key selection criteria include its 208-pin MAPBGA package, 5V-tolerant I/O, BDM debug interface, and compliance with AEC-Q100 Grade 2 temperature requirements for under-hood automotive use.
Technical Context
The S912XEQ512BCAG implements the S12X CPU12XV2 core with enhanced instruction set, 24-bit addressing, and hardware multiply/divide. Its memory subsystem includes 512 KB Flash organized in 2 KB sectors with EEPROM emulation capability, and 32 KB SRAM with parity protection.
Peripheral integration includes dual MSCAN controllers, 8-channel PWM with dead-time insertion, 16-channel 12-bit ADC with flexible trigger sources (ECT, PIT, software), and XGATE V3 coprocessor supporting up to 8 concurrent tasks with dedicated 2 KB RAM and interrupt-driven execution independent of main CPU.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | S12X 16-bit core @ 50 MHz max - delivers 50 MIPS throughput with hardware multiply/divide and 24-bit linear addressing. |
| Flash Memory | 512 KB on-chip Flash with 2 KB sector erase - enables field firmware updates and EEPROM emulation via NV memory routines. |
| RAM | 32 KB SRAM with parity checking - supports safety-critical data storage with error detection for ISO 26262 ASIL-B designs. |
| ADC | 12-bit, 16-channel SAR ADC with 8 µs conversion time - provides high-resolution analog sensing for battery voltage, temperature, and sensor signal conditioning. |
| PWM | 8-channel 16-bit PWM with programmable dead-time and center-aligned mode - suitable for motor control and LED dimming with precise timing control. |
| CAN Interface | Dual MSCAN 2.0B controllers with FIFO and message buffering - enables robust vehicle network communication with error confinement and bus-off recovery. |
| XGATE Coprocessor | XGATE V3 with 2 KB local RAM and 8-task scheduler - offloads ADC sampling, CAN message handling, and PID loop execution from main CPU. |
Pinout & Package
Package: 208-pin MAPBGA (15 × 15 mm, 0.8 mm pitch), RoHS-compliant, AEC-Q100 Grade 2 qualified (−40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply inputs | Separate digital (VDD), analog (VDDA), and PLL (VDDPLL) rails - enable noise isolation for mixed-signal operation and stable clock generation. |
| VSS, VSSA, VSSPLL | Ground returns | Dedicated digital (VSS), analog (VSSA), and PLL (VSSPLL) grounds - minimize coupling between logic switching noise and sensitive analog/PLL circuits. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up - initiates cold start or recovery from fault conditions; compatible with external watchdog assertion. |
| BKGD | Background Debug pin | Single-wire BDM interface - supports non-intrusive debugging, flash programming, and real-time register inspection without halting CPU. |
| CAN0_TX / CAN0_RX | CAN controller differential outputs/inputs | Direct connection to external CAN transceiver - implements ISO 11898-2 physical layer signaling for high-speed vehicle networks. |
| AD0[0–15] | Analog input channels | 16 dedicated ADC input pins with configurable gain and reference selection - support simultaneous sampling across multiple sensors in body electronics applications. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Memory Protection Unit (MPU) | Configurable region-based access control with violation interrupt - enforces software partitioning for ASIL-B compliance and prevents unintended memory corruption. |
| Enhanced Capture Timer (ECT) | 16-bit timer with 8 input capture/compare channels and quadrature decode - enables precise speed and position measurement for motors and encoders. |
| Periodic Interrupt Timer (PIT) | Four independent 24-bit timers with chaining and chaining interrupts - provides deterministic scheduling for real-time OS tick, diagnostics, and periodic sensor polling. |
| Security Module (SEC) | Flash protection, backdoor key access, and secure boot verification - prevents unauthorized firmware readout and ensures trusted code execution at startup. |
| Port Integration Module (PIM) | Flexible I/O routing with polarity inversion, wired-or, and reduced drive control - simplifies PCB layout by enabling pin remapping and noise-sensitive signal optimization. |
Applications
| Body Control Module (BCM) | Door Module Controller |
|---|---|
Use Scenario: Centralized management of lighting, power windows, locks, and mirrors in modern vehicles. IC Role / Device Role / Timing Role: Main system controller executing LIN/CAN gateway logic, PWM-driven LED driver control, and ADC-based switch monitoring. Use Value: Integrated dual CAN, 8-channel PWM, and 16-channel ADC eliminate external components while meeting AEC-Q100 Grade 2 thermal requirements. | Use Scenario: Localized control of window lift, mirror adjustment, and door lock actuation with anti-pinch detection. IC Role / Device Role / Timing Role: Real-time motor control unit using ECT quadrature decoding and PWM with dead-time for H-bridge drivers. Use Value: XGATE coprocessor handles encoder sampling and current sensing in parallel with main application code, reducing CPU load by ~40%. |
| Roof Module (Sunroof/Climate) | Seat Control Unit |
Use Scenario: Motorized sunroof positioning and HVAC damper control with temperature feedback and user interface. IC Role / Device Role / Timing Role: Mixed-signal controller managing 12-bit ADC temperature readings, SPI-connected display driver, and dual PWM for DC motor control. Use Value: On-chip 512 KB Flash supports over-the-air update of calibration tables and motor profiles without external memory. | Use Scenario: Position memory, heating element control, and lumbar adjustment in premium automotive seats. IC Role / Device Role / Timing Role: Safety-aware controller using MPU-protected RAM regions and SEC-verified boot for heater PWM and position sensor fusion. Use Value: Parity-protected 32 KB SRAM and hardware MPU ensure diagnostic data integrity required for ASIL-B seat heating systems. |
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, identical 208-MAPBGA package - higher memory density but no XGATE V3 coprocessor. | Targeted at complex gateway applications requiring larger code footprint; lacks XGATE acceleration for time-critical peripherals. | Select when Flash/RAM scalability outweighs need for hardware offload - e.g., multi-protocol gateway with extensive protocol stacks. |
| S912XDP512F0MLF | Same 512 KB Flash, 32 KB RAM, and XGATE V3, but in 144-pin LQFP package - reduced I/O count (112 vs. 156) and no CAN2 controller. | Suitable for cost-sensitive, space-constrained modules where second CAN channel is unnecessary. | Choose for simplified layout and lower BOM cost in single-CAN applications like lighting control or basic sensor nodes. |
Compared with MC9S12XEP100MALR, the S912XEQ512BCAG trades raw memory capacity for deterministic real-time performance via XGATE; versus S912XDP512F0MLF, it delivers full dual-CAN capability and higher I/O count essential for centralized body electronics modules.
Availability
S912XEQ512BCAG is available at Aetrix Electronics and suitable for automotive body control modules, door module controllers, roof/sunroof systems, and seat control units requiring stable component supply, long-term lifecycle support, and AEC-Q100 qualification.
Supply support for S912XEQ512BCAG 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 communication infrastructure solutions, with deep expertise in microcontrollers and secure edge processing.
The S12X family - including the S912XEQ512BCAG - was designed specifically for automotive body electronics and chassis applications demanding real-time determinism, functional safety features, and robust EMC performance in harsh environments.
FAQ
What is the maximum operating frequency of the S912XEQ512BCAG?
The S912XEQ512BCAG operates at a maximum CPU frequency of 50 MHz, achieved via its internal PLL with external crystal or ceramic resonator input. This yields 50 MIPS performance while maintaining compatibility with legacy S12 tools and debug infrastructure. The S912XEQ512BCAG's PLL supports multiple multiplication factors and includes lock detection for safe frequency transitions during runtime.
Does the S912XEQ512BCAG support AEC-Q100 qualification?
Yes, the S912XEQ512BCAG is qualified to AEC-Q100 Grade 2 (−40°C to +105°C ambient), with full characterization across temperature, voltage, and lifetime stress tests. This qualification covers all silicon, packaging, and test processes - confirming suitability for under-hood automotive applications such as body control modules where the S912XEQ512BCAG serves as the primary system controller.
How does the XGATE coprocessor in the S912XEQ512BCAG improve real-time performance?
The XGATE V3 coprocessor in the S912XEQ512BCAG executes up to 8 concurrent tasks independently of the main S12X CPU, using its own 2 KB RAM and interrupt-driven scheduler. In the S912XEQ512BCAG, it commonly handles ADC sampling sequences, CAN message filtering and buffering, and PWM synchronization - reducing main CPU interrupt load by up to 40% and improving jitter-free timing for safety-critical functions.
What debug interface does the S912XEQ512BCAG provide?
The S912XEQ512BCAG uses the Background Debug Mode (BDM) interface via the BKGD pin - a single-wire, non-intrusive debug solution supporting full flash programming, real-time register inspection, breakpoint setting, and live memory access without halting the CPU. This interface is fully supported by standard Freescale/NXP CodeWarrior and S32DS toolchains for the S912XEQ512BCAG.
Is there on-chip EEPROM functionality in the S912XEQ512BCAG?
The S912XEQ512BCAG does not include dedicated EEPROM hardware, but provides EEPROM emulation using protected sectors of its 512 KB Flash memory. NXP-supplied AN3739 and S12XE Flash routines enable wear-leveling, atomic write operations, and 100K+ endurance cycles - allowing the S912XEQ512BCAG to store calibration data, configuration parameters, and event logs with EEPROM-like reliability.
S912XEQ512BCAG 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XEQ512BCAG FAQ
1.How can I place an order for S912XEQ512BCAG through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512BCAG 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 S912XEQ512BCAG reliable?
The price and inventory of S912XEQ512BCAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512BCAG is usually 5 days.
3.What payment methods are accepted for S912XEQ512BCAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512BCAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512BCAG?
S912XEQ512BCAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512BCAG 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 S912XEQ512BCAG?
For technical support, including S912XEQ512BCAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512BCAG requirements.
6.How does Aetrix verify that S912XEQ512BCAG is sourced from the original manufacturer or authorized distributors?
All S912XEQ512BCAG 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 S912XEQ512BCAG meets industry standards.
7.What is the process for return or replacement of S912XEQ512BCAG?
All S912XEQ512BCAG units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512BCAG, 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 S912XEQ512BCAG part is unused and in its original packaging.
Return procedure for S912XEQ512BCAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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