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NXP Semiconductors S912XEQ512F1CAG
- Part No.:
- S912XEQ512F1CAG
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
S912XEQ512F1CAG.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,485
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Product details
Overview
S912XEQ512F1CAG from NXP (formerly Freescale) is a 16-bit automotive microcontroller featuring the CPU12X core, 512 KB Flash, 32 KB RAM, and integrated MSCAN, XGATE co-processor, and Memory Protection Unit (MPU). It delivers full CAN performance with XGATE offloading, supports -40°C to 125°C operation, and targets body control modules requiring functional safety-aware memory integrity.
For engineers reviewing the S912XEQ512F1CAG datasheet, S912XEQ512F1CAG pinout, S912XEQ512F1CAG application, or S912XEQ512F1CAG equivalent, key selection criteria include its 144-pin LQFP package, dual ATD converters (8/10/12-bit), 4 CAN modules, 6 SCI interfaces, ECC-protected Flash, and MPU-enforced memory partitioning for ASIL-B–aligned system integrity.
Technical Context
The S912XEQ512F1CAG implements a 16-bit CPU12X core running at up to 50 MHz bus frequency, paired with an independent XGATE RISC co-processor operating at 100 MHz. Its architecture supports supervisor/user mode separation, MPU-defined 8-byte granularity memory regions, and ECC-based single-bit correction/double-bit detection on Flash and D-Flash.
It integrates five peripheral domains critical for automotive body electronics: four MSCAN modules compliant with CAN 2.0A/B (up to 1 Mbps), six SCI interfaces supporting LIN master/slave via XGATE, dual 8-channel ATD converters with 3 µs 10-bit conversion time, 8-channel PWM with emergency shutdown, and a non-multiplexed external bus interface (enabled in 144-pin LQFP).
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 | 512 KB on-chip Flash with 64+8 ECC bits per word; enables single-bit fault correction and double-bit fault detection during execution or read. |
| RAM | 32 KB on-chip RAM; sufficient for real-time XGATE task buffers, CAN mailbox descriptors, and safety-critical runtime variables. |
| Operating Voltage | 3.3 V ±5% / +10% to 5.0 V +10%; supports direct connection to automotive battery rails with minimal external regulation. |
| Temperature Range | -40°C to 125°C ambient; qualified for under-hood and body-control module placement without derating. |
| Package | 144-pin LQFP, 20×20 mm, 0.5 mm pitch; provides mechanical robustness and thermal dissipation suitable for reflow-soldered automotive PCBs. |
| Peripheral Count | 4 CAN, 6 SCI, 3 SPI, 2 IIC, 2 ATD (8ch each), 8 ECT channels; enables concurrent LIN gateway, sensor acquisition, actuator PWM, and diagnostic communication. |
Pinout & Package
144-pin LQFP (20×20 mm, 0.5 mm pitch), case number 918-03. Pin functions conform to MC9S12XE Family standard mapping with dedicated VREG, VDD, VSS, RESET, BKGD, and module-specific signal groups (e.g., CAN0–CAN3 differential pairs, SCI0–SCI5 TX/RX, ATD0–ATD1 inputs).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; initiates power-on reset sequence and clears CPU/XGATE state. |
| BKGD | Background debug pin | Single-wire BDM interface for non-intrusive flash programming, breakpoint insertion, and live register inspection. |
| VREGIN | Internal voltage regulator input | Accepts 5 V supply; powers internal 3.3 V regulator, enabling separate I/O and core rail filtering for EMC robustness. |
| CAN0_TX / CAN0_RX | CAN controller differential pair | Direct connection to external CAN transceiver; supports 1 Mbps bit rate and loopback self-test mode. |
| ATD0[0–7] | Analog input channels | Eight dedicated analog inputs for ATD0 converter; support 8/10/12-bit resolution with internal oscillator for stop-mode conversions. |
| PT0–PT7 | General-purpose I/O port | 8-bit bidirectional port with configurable pull-up/down, hysteresis, and drive strength; usable for wake-up from STOP/WAIT modes. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | 8 programmable address regions with 8-byte granularity; enforces no-write/no-execute attributes and triggers NMI on violation - foundational for ASIL-B software partitioning. |
| XGATE Co-processor | 100 MIPS RISC engine running at 100 MHz; handles CAN message scheduling, LIN frame assembly, and SPI/SCI DMA without CPU intervention - frees main core for control logic. |
| ECC-Protected Flash & D-Flash | 64+8 ECC bits per 64-bit word; guarantees single-bit correction and double-bit detection during program/erase and read operations - meets ISO 26262 data integrity requirements. |
| Full-CAN with XGATE | Supports unlimited virtual mailboxes via XGATE-managed descriptor lists; eliminates CPU polling overhead and enables deterministic CAN response ≤10 µs latency. |
| Enhanced Debug (xDBG) | Four hardware comparators + 64-entry trace buffer; captures address/data flow for root-cause analysis of timing violations or memory corruption in safety-critical tasks. |
Applications
| Body Control Module (BCM) | Vehicle Gateway |
|---|---|
|
Use Scenario: Centralized management of lighting, door locks, window lifts, and HVAC actuators in modern passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing real-time PWM for LED drivers, sampling analog cabin sensors via ATD, and managing LIN slave nodes using SCI+XGATE. Use Value: MPU-enforced isolation prevents firmware faults in infotainment-linked LIN stacks from compromising safety-critical lighting control logic. |
Use Scenario: Protocol translation between high-speed CAN-FD backbone and low-speed LIN subnets in electric vehicle architectures. IC Role / Device Role / Timing Role: Dual-CAN interface bridging powertrain and chassis networks while hosting LIN master for seat/mirror modules via XGATE-offloaded SCI. Use Value: 4 CAN modules + 6 SCI interfaces enable concurrent handling of 3 CAN buses and 5 LIN clusters without external protocol ICs - reducing BOM count and latency. |
| Roof Module Controller | Smart Junction Box |
|
Use Scenario: Integrated control of sunroof, panoramic roof, and ambient lighting with tilt/position feedback and overheat protection. IC Role / Device Role / Timing Role: ATD-acquired potentiometer and thermistor readings feed closed-loop position control; PWM drives brushed DC motors with emergency stop triggered by XGATE-monitored current sense. Use Value: ECC-protected Flash ensures bootloader and motor control algorithms remain uncorrupted after 10+ years of thermal cycling - meeting OEM 15-year lifecycle mandates. |
Use Scenario: Distributed power distribution unit with load switching, short-circuit diagnostics, and CAN-based remote configuration in premium vehicles. IC Role / Device Role / Timing Role: ECT-captured current-sense pulses feed real-time overcurrent detection; MSCAN reports fault status; PWM modulates MOSFET gate drivers with <1 µs jitter. Use Value: 152 I/O pins (including 25 interrupt-capable wake-up pins) allow direct connection to 24+ loads without GPIO expanders - simplifying PCB layout and improving failure mode coverage. |
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, 5 CAN, 208-pin MAPBGA; lacks D-Flash but adds non-multiplexed external bus. | Targeted at higher-complexity gateways requiring external memory expansion and >500 KB code space. | Select when application exceeds 512 KB Flash footprint or requires external SRAM/Flash interfacing. |
| SPC560P50L5 | 32-bit Power Architecture core, 512 KB Flash, 64 KB RAM, 3 CAN, 4 LIN, ISO 26262 ASIL-B certified out-of-box. | Designed for next-gen ASIL-B systems requiring certified toolchain, safety manual, and FMEDA data. | Select when formal safety certification documentation and compiler qualification are mandatory deliverables. |
Compared with MC9S12XEP100MAG, S912XEQ512F1CAG trades external bus capability and Flash size for smaller LQFP footprint and lower system cost; compared with SPC560P50L5, it offers mature toolchain compatibility and proven field reliability but requires customer-led safety case development.
Availability
S912XEQ512F1CAG is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateways, roof controllers, and smart junction boxes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S912XEQ512F1CAG 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 heritage in automotive MCUs dating to Motorola's S12 lineage.
The S12XE family - including S912XEQ512F1CAG - was designed specifically for automotive body electronics demanding enhanced system integrity, featuring MPU, ECC, and XGATE to meet evolving functional safety expectations without migrating to 32-bit architectures.
FAQ
What is the maximum bus frequency supported by the S912XEQ512F1CAG?
The S912XEQ512F1CAG supports a maximum CPU bus frequency of 50 MHz and an XGATE bus frequency of 100 MHz. This allows deterministic real-time execution of safety-critical control loops while offloading communication tasks to the co-processor. The IPLL clock generator enables stable operation across voltage and temperature variations without external components.
Does the S912XEQ512F1CAG include error-correcting code (ECC) for Flash memory?
Yes, the S912XEQ512F1CAG implements 64+8 ECC bits per 64-bit word in both main Flash and D-Flash memory. This provides single-bit error correction and double-bit error detection during read, program, and erase operations - a key requirement for ISO 26262 ASIL-B compliance in automotive applications.
How many CAN modules does the S912XEQ512F1CAG integrate, and what protocol versions are supported?
The S912XEQ512F1CAG integrates four MSCAN modules supporting CAN 2.0A and 2.0B protocols with software compatibility, standard/extended identifier frames, and programmable bit rates up to 1 Mbps. Each module includes five receive buffers with FIFO and three prioritized transmit buffers - enabling full-CAN functionality when managed by the XGATE co-processor.
What package type and pin count does the S912XEQ512F1CAG use?
The S912XEQ512F1CAG is housed in a 144-pin LQFP package (20×20 mm, 0.5 mm pitch, case number 918-03). This package supports all core peripherals including four CAN transceivers, six SCI interfaces, and dual ATD converters while maintaining compatibility with standard automotive PCB assembly processes.
Is the S912XEQ512F1CAG qualified for automotive temperature grades?
Yes, the S912XEQ512F1CAG is qualified for operation from -40°C to 125°C ambient temperature, meeting AEC-Q100 Grade 0 requirements. This qualification covers full functionality of CPU, XGATE, Flash, RAM, and all integrated peripherals - making it suitable for under-hood and body-control module deployments.
S912XEQ512F1CAG 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:
S912XEQ512F1CAG FAQ
1.How can I place an order for S912XEQ512F1CAG through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512F1CAG 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 S912XEQ512F1CAG reliable?
The price and inventory of S912XEQ512F1CAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512F1CAG is usually 5 days.
3.What payment methods are accepted for S912XEQ512F1CAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512F1CAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512F1CAG?
S912XEQ512F1CAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512F1CAG 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 S912XEQ512F1CAG?
For technical support, including S912XEQ512F1CAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512F1CAG requirements.
6.How does Aetrix verify that S912XEQ512F1CAG is sourced from the original manufacturer or authorized distributors?
All S912XEQ512F1CAG 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 S912XEQ512F1CAG meets industry standards.
7.What is the process for return or replacement of S912XEQ512F1CAG?
All S912XEQ512F1CAG units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512F1CAG, 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 S912XEQ512F1CAG part is unused and in its original packaging.
Return procedure for S912XEQ512F1CAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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