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NXP Semiconductors S912XEQ512J2CAL
- Part No.:
- S912XEQ512J2CAL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
S912XEQ512J2CAL.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,658
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Product details
Overview
S912XEQ512J2CAL 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. It delivers full CAN performance in body control modules and gateway applications operating at -40°C to 125°C.
For engineers reviewing the S912XEQ512J2CAL datasheet, S912XEQ512J2CAL pinout, S912XEQ512J2CAL application, or S912XEQ512J2CAL equivalent, key selection criteria include Flash ECC support, XGATE offloading capability for CAN/LIN, 144-pin LQFP package compatibility, and automotive AEC-Q100 qualification status.
Technical Context
The S912XEQ512J2CAL implements a dual-bus architecture: the 16-bit CPU12X runs at up to 50 MHz bus frequency, while the XGATE RISC co-processor operates at up to 100 MHz and handles peripheral interrupts-including all five MSCAN modules-without CPU intervention. Its Memory Protection Unit (MPU) defines eight address regions with 8-byte granularity and enforces no-write/no-execute attributes.
It integrates a Frequency Modulated PLL (IPLL) for EMC reduction, supports non-multiplexed external bus interface in 144-pin LQFP, and features dual ATD converters (8/10/12-bit, 16-channel mux) with internal oscillator for wake-up during STOP mode. The device includes 4 CAN modules (CAN0/CAN1/CAN2/CAN4), 6 SCI, 3 SPI, and 2 IIC interfaces per family specification for this variant.
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 with ECC: 1-bit correction / 2-bit detection per 64-bit word; automated program/erase; security lock prevents unauthorized access. |
| XGATE Co-processor | Programmable RISC engine running at 100 MHz; services all peripherals independently; enables FULL-CAN with unlimited mailboxes via MSCAN. |
| Operating Voltage | 3.3 V ±5% to 5.0 V +10%; separate VREG and I/O supplies allow independent EMC filtering and stable operation across automotive battery transients. |
| Temperature Range | -40°C to 125°C ambient; qualified for under-hood automotive applications requiring extended thermal reliability. |
| Package & Pins | 144-pin LQFP (20×20 mm, 0.5 mm pitch); supports non-multiplexed external bus; provides 119 general-purpose I/O pins with interrupt capability. |
| Communication Peripherals | 4 × MSCAN (CAN 2.0A/B), 6 × SCI (LIN-capable), 3 × SPI, 2 × IIC; XGATE offloads protocol handling to free CPU for application logic. |
Pinout & Package
Package: 144-pin LQFP (20×20 mm, 0.5 mm pitch, case no 918-03). Pinout validated per MC9S12XE Data Sheet "Port Availability by Package Option" table for 144LQFP configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply inputs | Dedicated domains for core logic, analog (ATD), and PLL enable independent noise filtering and stable clock generation. |
| VSS, VSSA, VSSPLL | Ground returns | Separate ground paths prevent coupling between digital switching noise, analog measurement, and sensitive PLL circuitry. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; triggers power-on reset (POR), low-voltage reset (LVR), and illegal address recovery. |
| MODB, MODA | Mode selection inputs | Configure boot mode (Normal, Special Bootstrap, Background Debug); sampled at reset to determine startup vector and BDM enable. |
| XTAL, EXTAL | Crystal oscillator terminals | Support 4–16 MHz Pierce crystal; internal transconductance optimized for reliable start-up across temperature and voltage extremes. |
| PORTA–PORTP | General-purpose I/O ports | 119 total GPIOs; configurable pull-up/down, hysteresis, and drive strength; up to 25 pins support 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 policies and triggers non-maskable interrupt on violation. |
| ECC on Flash & D-Flash | 64-bit data + 8-bit syndrome bits correct single-bit errors and detect double-bit faults during read/write; critical for ASIL-B functional safety compliance. |
| XGATE Offload Engine | Handles CAN message buffering, LIN frame assembly, and SPI transfers autonomously-reducing CPU load by >70% in gateway use cases. |
| IPLL with Spread Spectrum | Internally filtered PLL with software-configurable frequency modulation reduces peak EMI emissions by up to 10 dB, easing EMC certification. |
| Enhanced ATD Converter | Dual 8/10/12-bit ADCs with 16-channel mux, 3 µs 10-bit conversion time, and internal oscillator support wake-up from STOP mode on analog threshold crossing. |
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 real-time control tasks, managing LIN slave nodes, and routing CAN messages between chassis and comfort networks. Use Value: XGATE handles LIN communication and PWM dimming independently, freeing CPU for diagnostics and sensor fusion algorithms. |
Use Scenario: Protocol translation and message filtering between high-speed powertrain CAN and low-speed body CAN/LIN networks. IC Role / Device Role / Timing Role: Dual-CAN bridge with hardware-accelerated message filtering, timestamping, and priority-based forwarding. Use Value: 4 independent MSCAN modules and MPU-enforced memory isolation ensure deterministic latency and fault containment between network domains. |
| Roof Module Controller | Seat Control Unit |
Use Scenario: Integrated sunroof, panoramic roof, and rain sensor management with motor position feedback and anti-pinch detection. IC Role / Device Role / Timing Role: Real-time motor control via 8-channel PWM, analog sensing via ATD, and LIN communication to body domain master. Use Value: On-chip 12-bit ATD with internal oscillator enables precise analog measurements during low-power sleep states without external clock dependency. |
Use Scenario: Power seat adjustment with position memory, heating control, and occupant detection via capacitive sensing. IC Role / Device Role / Timing Role: Sensor interface hub aggregating resistive heater feedback, potentiometer inputs, and LIN commands from driver interface. Use Value: 119 GPIOs and configurable drive strength support direct driving of multiple 12V heater elements and motor drivers without external level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP100MAL | 1 MB Flash, 64 KB RAM, 208-pin MAPBGA; adds 3rd ATD module and 8-channel TIM vs. S912XEQ512J2CAL's 2 ATD/4-channel TIM. | Targeted at higher-integration body controllers requiring larger code footprint and more timer resources for multi-axis motor control. | Select when >512 KB Flash, additional ATD channels, or 208-pin routing density are required; not pin-compatible with 144LQFP. |
| SPC560B50L5 | 32-bit Power Architecture core, 512 KB Flash, 48 KB RAM, 3x CAN FD, 2x LIN; AEC-Q100 Grade 1 (-40°C to 125°C). | Designed for next-gen gateways needing CAN FD bandwidth and ISO 26262 ASIL-B support; lacks XGATE but offers hardware safety mechanisms. | Choose for CAN FD migration path or formal safety certification; requires toolchain and software rearchitecture due to 32-bit ISA and different peripheral mapping. |
Compared with MC9S12XEP100MAL and SPC560B50L5, the S912XEQ512J2CAL balances proven 16-bit deterministic performance, XGATE offload efficiency for legacy CAN/LIN stacks, and cost-effective 144LQFP packaging-making it optimal for volume automotive body electronics where code size and thermal range meet defined limits.
Availability
S912XEQ512J2CAL is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateways, roof controllers, and seat control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S912XEQ512J2CAL 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.
The S912XEQ512J2CAL belongs to the S12XE family-designed specifically for automotive body electronics demanding enhanced system integrity via MPU, Flash ECC, and XGATE co-processing while maintaining 16-bit cost and power advantages.
FAQ
What is the maximum bus frequency supported by the S912XEQ512J2CAL?
The S912XEQ512J2CAL supports a maximum CPU bus frequency of 50 MHz and an XGATE bus frequency of 100 MHz. These frequencies are achieved using the internal Frequency Modulated PLL (IPLL), which requires no external components and allows spread-spectrum operation to reduce electromagnetic emissions. The S912XEQ512J2CAL maintains full performance across its specified voltage and temperature range.
Does the S912XEQ512J2CAL include error correction for its Flash memory?
Yes, the S912XEQ512J2CAL includes Error Correction Code (ECC) on its 512 KB Flash memory. Each 64-bit data word is protected by 8 syndrome bits enabling single-bit error correction and double-bit error detection. This ECC implementation is hardware-automated during read/write operations and supports functional safety requirements such as those found in ASIL-B systems.
How many CAN modules does the S912XEQ512J2CAL integrate, and what protocols do they support?
The S912XEQ512J2CAL integrates four MSCAN modules (CAN0, CAN1, CAN2, and CAN4) compliant with CAN 2.0A and 2.0B protocols. Each module supports standard and extended identifiers, programmable bit rates up to 1 Mbps, and hardware-based message filtering. When paired with the XGATE co-processor, these modules deliver FULL-CAN functionality with scalable mailbox allocation and zero-CPU-overhead message handling.
Is the S912XEQ512J2CAL qualified for automotive temperature ranges?
Yes, the S912XEQ512J2CAL is rated for operation from -40°C to 125°C ambient temperature and is designed to meet AEC-Q100 stress test requirements for automotive applications. Its separate VREG and I/O supply domains, along with enhanced EMC filtering capabilities, ensure robust performance in under-hood and other thermally demanding environments.
What debugging interfaces are supported by the S912XEQ512J2CAL?
The S912XEQ512J2CAL supports the Background Debug Mode (BDM) interface via a single-wire connection for non-intrusive memory access, flash programming, and real-time debugging. It also includes the xDBG module with four hardware comparators and a 64-entry trace buffer for advanced breakpoint and flow analysis-both fully compatible with CodeWarrior development tools.
S912XEQ512J2CAL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 112-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:
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XEQ512J2CAL FAQ
1.How can I place an order for S912XEQ512J2CAL through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512J2CAL 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 S912XEQ512J2CAL reliable?
The price and inventory of S912XEQ512J2CAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512J2CAL is usually 5 days.
3.What payment methods are accepted for S912XEQ512J2CAL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512J2CAL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512J2CAL?
S912XEQ512J2CAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512J2CAL 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 S912XEQ512J2CAL?
For technical support, including S912XEQ512J2CAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512J2CAL requirements.
6.How does Aetrix verify that S912XEQ512J2CAL is sourced from the original manufacturer or authorized distributors?
All S912XEQ512J2CAL 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 S912XEQ512J2CAL meets industry standards.
7.What is the process for return or replacement of S912XEQ512J2CAL?
All S912XEQ512J2CAL units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512J2CAL, 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 S912XEQ512J2CAL part is unused and in its original packaging.
Return procedure for S912XEQ512J2CAL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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