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NXP Semiconductors S912XEQ512F1VAA
- Part No.:
- S912XEQ512F1VAA
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
S912XEQ512F1VAA.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,118
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Product details
Overview
S912XEQ512F1VAA 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 operating at -40°C to 125°C with 50 MHz bus frequency.
For engineers reviewing the S912XEQ512F1VAA datasheet, S912XEQ512F1VAA pinout, S912XEQ512F1VAA application, or S912XEQ512F1VAA equivalent, key selection criteria include Flash ECC support, XGATE offloading capability for CAN/LIN, 144-pin LQFP package compatibility, and qualification for automotive AEC-Q100 Grade 1 operation.
Technical Context
The S912XEQ512F1VAA implements a dual-core architecture: the main CPU12X executes application code at up to 50 MHz bus speed, while the programmable XGATE RISC co-processor runs at 100 MHz and handles time-critical peripheral tasks-including full CAN mailbox management and LIN frame generation-without CPU intervention. Both cores share unified memory space with MPU-enforced access protection.
It integrates a Frequency Modulated PLL (IPLL) for EMC reduction, ECC-enabled Flash with 1-bit correction/2-bit detection, and an enhanced ATD with 8-channel 10-bit conversion in ≤3 µs. The device supports non-multiplexed external bus interface only in 144-pin LQFP and 208-pin MAPBGA packages-this variant uses the 144-pin LQFP option.
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 S12 code reuse. |
| Flash Memory | 512 KB with ECC (64 data + 8 syndrome bits), enabling single-bit error correction and double-bit fault detection during read/write operations. |
| RAM | 32 KB on-chip SRAM, accessible without wait states for both CPU and XGATE, supporting real-time buffer handling. |
| XGATE Performance | 100 MIPS RISC co-processor, independently servicing all peripherals including MSCAN, SCI, and PWM-reducing CPU load by >70% in CAN-heavy gateway designs. |
| Operating Temperature | -40°C to 125°C ambient range, qualified per AEC-Q100 Grade 1, enabling deployment in engine bay and under-hood modules. |
| Package & Pins | 144-pin LQFP (20×20 mm, 0.5 mm pitch), providing 119 I/O pins with configurable drive strength, hysteresis, and interrupt-capable wake-up capability. |
| CAN Interfaces | 4 MSCAN modules (CAN0, CAN1, CAN2, CAN4), each compliant with CAN 2.0A/B, supporting up to 1 Mbps bit rate and FULL-CAN operation when paired with XGATE. |
| ADC | One 8-channel, 10-bit ATD module with 3 µs single-conversion time, internal oscillator for Stop-mode operation, and analog-compare wake-up trigger. |
Pinout & Package
Package: 144-pin LQFP (20×20 mm, 0.5 mm pitch, case no 918-03), RoHS-compliant, with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDX | Core & I/O power supply | Dual 3.3–5.0 V supplies enable independent EMC filtering; VDDX powers I/Os, VDD powers core and regulators. |
| VSS, VSSX | Core & I/O ground | Separate ground planes reduce noise coupling between digital logic and I/O drivers. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; triggers POR, COP timeout, or low-voltage detection events. |
| MODB, MODA | Mode selection inputs | Configure boot mode (Normal, Special Boot, Background Debug) at power-on; latched internally after reset release. |
| XTAL, EXTAL | Crystal oscillator terminals | Support 4–16 MHz Pierce crystal; internal transconductance optimized for reliable startup across temperature and voltage. |
| CAN0_TX, CAN0_RX | CAN0 differential signal pair | Direct connection to external CAN transceiver; integrated CAN controller handles arbitration, error framing, and message buffering. |
| SCI0_TX, SCI0_RX | LIN/SCI0 serial interface | Hardware LIN master/slave support via SCI0 with break-detect and IrDA RZI formatting; used for door module communication. |
| PWM0–PWM7 | Eight 8-bit PWM outputs | Configurable center/left-aligned outputs with emergency shutdown input; drive LED clusters, solenoids, and motor fans directly. |
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-critical for ASIL-B software partitioning. |
| XGATE Co-processor | Offloads CAN/LIN protocol stacks, SPI transfers, and PWM updates; eliminates CPU polling and reduces worst-case interrupt latency to <1 µs. |
| ECC-Protected Flash | Real-time 1-bit correction/2-bit detection prevents silent data corruption in safety-critical firmware storage; meets ISO 26262 ASIL-B requirements. |
| Enhanced ATD Converter | 8-channel 10-bit ADC with internal oscillator allows analog sensing during STOP mode; wake-up on threshold match enables ultra-low-power sensor monitoring. |
| IPLL with Spread Spectrum | Internally filtered PLL with optional frequency modulation reduces peak EMI emissions by >10 dB, easing CISPR 25 Class 5 compliance in body electronics. |
| Background Debug (BDM) | Single-wire BDM interface supports non-intrusive flash programming, real-time memory inspection, and hardware breakpoints-essential for production calibration and field updates. |
Applications
| Body Control Module (BCM) | Vehicle Gateway |
|---|---|
Use Scenario: Centralized control of lighting, wipers, door locks, and HVAC actuators in modern passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing body domain software stack; manages CAN/LIN communication, PWM-driven loads, and analog sensor inputs. Use Value: XGATE handles 4x CAN message scheduling and LIN slave responses concurrently, freeing CPU for diagnostics and feature logic-reducing total task execution time by 42% vs. S12XD. |
Use Scenario: Protocol translation and message routing between high-speed powertrain CAN, infotainment LIN, and diagnostic K-line networks. IC Role / Device Role / Timing Role: Real-time gateway controller with deterministic latency; routes messages between CAN0/CAN1/CAN2/CAN4 and multiple SCI-based LIN buses. Use Value: Full CAN mailbox support (5 receive + 3 transmit buffers per MSCAN) plus XGATE-managed FIFOs ensure zero packet loss at 500 kbps sustained traffic across 4 CAN domains. |
| Roof Module Controller | Seat Control Unit |
Use Scenario: Sunroof, panoramic roof, and ambient lighting control with position feedback and soft-stop algorithms. IC Role / Device Role / Timing Role: Motion controller interfacing with Hall-effect sensors, H-bridge drivers, and RGBW LED strings via PWM and SPI. Use Value: Integrated 8-channel PWM with center-aligned output and emergency shutdown input enables precise bidirectional motor control and flicker-free LED dimming without external timers. |
Use Scenario: Power seat adjustment with memory presets, heating, and occupancy detection using thermistors and pressure sensors. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating analog (ATD), digital (I/O), and serial (I²C) inputs; drives DC motors and heater elements. Use Value: 8-channel 10-bit ATD with 3 µs conversion and analog-compare wake-up allows continuous seat temperature monitoring at <5 µA average current in WAIT mode. |
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, 8-ch ATD; higher I/O count (152 pins) and larger memory footprint. | Targeted at premium BCMs requiring over-the-air update partitions and multi-sensor fusion; not pin-compatible with S912XEQ512F1VAA. | Select when future-proofing for firmware growth beyond 512 KB or needing additional CAN/LIN channels in new PCB layouts. |
| S912XEQ384F1VAA | 384 KB Flash, 24 KB RAM, identical 144-pin LQFP package, same peripheral set (4 CAN, 6 SCI, 3 SPI), same XGATE and MPU features. | Cost-optimized variant for entry-level body modules where firmware size is constrained to <384 KB; drop-in replacement for layout-reuse scenarios. | Choose for cost-sensitive programs with stable firmware size; shares identical pinout, timing, and debug interface-no PCB changes required. |
Compared with S912XEQ512F1VAA, MC9S12XEP100MAG offers greater memory headroom and I/O scalability but requires MAPBGA re-layout, while S912XEQ384F1VAA provides identical form-factor and peripheral compatibility at lower Flash density-making it ideal for derivative designs with unchanged hardware.
Availability
S912XEQ512F1VAA is available at Aetrix Electronics and suitable for automotive body control, vehicle gateway, and seat/roof module applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for S912XEQ512F1VAA 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 markets, with deep heritage in automotive microcontrollers dating to Motorola's S12 lineage.
The S12XE family-including S912XEQ512F1VAA-was designed specifically for automotive body electronics demanding enhanced system integrity: MPU, ECC Flash, and XGATE offload enable ASIL-B–capable architectures without external safety monitors.
FAQ
What is the maximum bus frequency supported by the S912XEQ512F1VAA?
The S912XEQ512F1VAA supports a maximum CPU bus frequency of 50 MHz, achieved via its internal Frequency Modulated Phase-Locked Loop (IPLL). This enables deterministic real-time execution for automotive body control tasks while maintaining compatibility with existing S12X toolchains and peripheral timing models. The XGATE co-processor operates at twice the bus frequency-100 MHz-for high-throughput data movement and protocol processing.
Does the S912XEQ512F1VAA include Error Correction Code (ECC) on its Flash memory?
Yes, the S912XEQ512F1VAA includes full ECC protection on its 512 KB Flash memory, using 64 data bits plus 8 syndrome bits per word. This provides single-bit error correction and double-bit fault detection during both read and program/erase operations-meeting functional safety requirements for ASIL-B applications per ISO 26262. ECC is enabled automatically and transparently; no software overhead is required to maintain data integrity.
Is the S912XEQ512F1VAA pin-compatible with other S12XE family members?
The S912XEQ512F1VAA is pin-compatible with other 144-pin LQFP variants in the S12XE family-including S912XEQ384F1VAA and S912XET256F1VAA-sharing identical mechanical footprint, power/ground pin mapping, and peripheral signal assignments. However, it is not pin-compatible with 208-pin MAPBGA or 112-pin LQFP derivatives due to differing I/O counts and package-specific signal routing.
What debugging interfaces does the S912XEQ512F1VAA support?
The S912XEQ512F1VAA supports a single-wire Background Debug Mode (BDM) interface compliant with the standard S12X BDM specification. This enables non-intrusive flash programming, real-time memory inspection, hardware breakpoints, and live register monitoring using standard tools like P&E Micro's USB-ML-12 and CodeWarrior IDE. No JTAG or SWD interface is present-debugging relies exclusively on BDM.
What automotive qualification level does the S912XEQ512F1VAA meet?
The S912XEQ512F1VAA is qualified to AEC-Q100 Grade 1, specifying operation from -40°C to +125°C ambient temperature with full electrical characterization across that range. It also meets stringent automotive reliability standards including HTOL, ESD, and AC/DC stress testing. This qualification makes it suitable for under-hood and cabin-mounted body electronics where thermal robustness and long-term stability are mandatory.
S912XEQ512F1VAA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-QFP
- Series:
- HCS12X
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- 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:
- 59
- 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 8x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XEQ512F1VAA FAQ
1.How can I place an order for S912XEQ512F1VAA through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512F1VAA 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 S912XEQ512F1VAA reliable?
The price and inventory of S912XEQ512F1VAA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512F1VAA is usually 5 days.
3.What payment methods are accepted for S912XEQ512F1VAA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512F1VAA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512F1VAA?
S912XEQ512F1VAA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512F1VAA 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 S912XEQ512F1VAA?
For technical support, including S912XEQ512F1VAA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512F1VAA requirements.
6.How does Aetrix verify that S912XEQ512F1VAA is sourced from the original manufacturer or authorized distributors?
All S912XEQ512F1VAA 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 S912XEQ512F1VAA meets industry standards.
7.What is the process for return or replacement of S912XEQ512F1VAA?
All S912XEQ512F1VAA units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512F1VAA, 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 S912XEQ512F1VAA part is unused and in its original packaging.
Return procedure for S912XEQ512F1VAA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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