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NXP Semiconductors S912XEQ512J3MALR
- Part No.:
- S912XEQ512J3MALR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
S912XEQ512J3MALR.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,243
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Product details
Overview
S912XEQ512J3MALR 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 with -40°C to 125°C operation and 50 MHz bus frequency.
For engineers reviewing the S912XEQ512J3MALR datasheet, S912XEQ512J3MALR pinout, S912XEQ512J3MALR application, or S912XEQ512J3MALR 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 S912XEQ512J3MALR implements a 16-bit CPU12X core with full MC9S12 instruction set compatibility (excluding five fuzzy instructions), supports up to 50 MHz bus frequency, and integrates an enhanced XGATE co-processor running at 100 MHz to handle peripheral interrupts-including full CAN mailbox management-without CPU intervention. Its Memory Protection Unit (MPU) defines eight address regions with 8-byte granularity and enforces no-write/no-execute attributes.
It features dual ATD converters (8/10/12-bit resolution, 16-channel multiplexer, 3 µs 10-bit conversion time), four MSCAN modules (CAN 2.0A/B compliant, up to 1 Mbps, with FIFO receive buffers and software-configurable identifier filters), and a Frequency Modulated PLL (IPLL) enabling spread-spectrum clocking for reduced EMC emissions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU12X 16-bit core, fully compatible with MC9S12 except five removed fuzzy instructions (MEM, WAV, WAVR, REV, REVW) |
| Flash Memory | 512 KB with ECC: 1-bit fault correction + 2-bit fault detection per 64-bit word; 1024-byte erase sectors |
| RAM | 32 KB on-chip SRAM; supports fast access without wait states for all peripherals and memories |
| Bus Frequency | 50 MHz maximum CPU bus frequency; XGATE runs at 100 MHz for deterministic I/O offloading |
| CAN Modules | 4 independent MSCAN modules (CAN0, CAN1, CAN2, CAN4); each supports standard/extended frames, 0–8 byte payloads, and FULL-CAN when paired with XGATE |
| ATD Converter | Two independent ATD modules; 8/10/12-bit resolution, 16-channel analog multiplexer, 3 µs single 10-bit conversion time |
| Operating Temp | -40°C to 125°C ambient temperature range; qualified for automotive under AEC-Q100 Grade 0 |
| Package | 144-pin LQFP (20×20 mm, 0.5 mm pitch); non-multiplexed external bus interface supported |
Pinout & Package
Package: 144-pin LQFP (20×20 mm, 0.5 mm pitch, case no 918-03), with non-multiplexed external bus interface support and dedicated VREG supply pins for optimized EMC filtering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDX | Power supply inputs | Dedicated supplies for core logic (VDD), analog (VDDA), and external bus (VDDX); enable independent EMC filtering |
| VSS, VSSA, VSSX | Ground returns | Separate ground planes for digital, analog, and external bus domains reduce noise coupling |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; triggers power-on reset (POR), low-voltage reset (LVR), and COP timeout recovery |
| MODB, MODA | Mode configuration inputs | Set boot mode (normal, special bootstrap, BDM) at power-up; sampled during reset assertion |
| XTAL, EXTAL | Crystal oscillator terminals | Support 4–16 MHz Pierce crystal; internal transconductance optimized for reliable start-up across temperature |
| PORTA–PORTP | General-purpose I/O ports | Up to 119 GPIOs total; configurable pull-up/pull-down, hysteresis, and drive strength; 25 pins support STOP/WAIT wake-up |
| CAN0TX, CAN0RX | CAN0 differential signal pair | Direct connection to external CAN transceiver; supports 1 Mbps bit rate with programmable timing quanta |
| SCI0TX, SCI0RX | SCI0 serial interface | Full-duplex UART supporting LIN physical layer (break detect, collision detect) and IrDA RZI format |
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 |
| XGATE Co-processor | Programmable in C; handles CAN/LIN messaging, SPI transfers, and ATD triggers autonomously-freeing CPU for application logic |
| ECC-Protected Flash | 64-bit data + 8-bit syndrome bits per word enable real-time 1-bit correction and 2-bit detection-critical for ASIL-B compliance |
| Enhanced ATD | Two independent converters with internal oscillator support for accurate conversions during STOP mode; wake-up on analog threshold match |
| IPLL Clock Generator | Internally filtered PLL with optional frequency modulation (spread spectrum) reduces peak EMI by >10 dB without external components |
| Background Debug (BDM) | Single-wire interface enables non-intrusive flash programming, memory inspection, and real-time breakpoint debugging in production firmware |
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 managing PWM-driven power outputs, reading discrete sensors via GPIO, and communicating over CAN/LIN subnets. Use Value: XGATE offloads CAN message handling and LIN frame generation, enabling deterministic response to switch events while maintaining 50 MHz CPU throughput for safety-critical logic. |
Use Scenario: Protocol translation between high-speed CAN FD backbone and low-speed LIN clusters in electric vehicle architectures. IC Role / Device Role / Timing Role: Dual-CAN/LIN bridge with real-time message routing, filtering, and priority arbitration using hardware-assisted mailbox queues. Use Value: Four MSCAN modules and XGATE-managed FIFOs allow concurrent reception/transmission on multiple buses with <10 µs latency between CAN frame arrival and LIN echo response. |
| Engine Bay Junction Box | Roof Module Controller |
|
Use Scenario: High-temperature junction box managing battery disconnect, precharge sequencing, and coolant pump control near engine compartment. IC Role / Device Role / Timing Role: Robust MCU executing ASIL-B diagnostics, monitoring voltage/current via ATD, and driving high-side switches through PWM outputs. Use Value: -40°C to 125°C rating, ECC Flash, and MPU-enforced memory isolation ensure functional safety integrity despite thermal stress and EMI exposure. |
Use Scenario: Integrated roof module controlling sunroof, interior lighting, and rain sensor wipers in premium automotive interiors. IC Role / Device Role / Timing Role: Mixed-signal controller acquiring analog rain/light sensor data, generating smooth PWM dimming profiles, and communicating over LIN to body domain. Use Value: Dual ATD converters with internal oscillator support continuous sensing during low-power WAIT modes, extending battery life while maintaining responsiveness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP100MAB | 1 MB Flash, 64 KB RAM, 208-pin MAPBGA; adds fifth CAN module and 8-channel ECT vs. S912XEQ512J3MALR's 4 CAN and 4-channel ECT | Targeted at high-end gateways requiring >512 KB code space and expanded I/O for multi-bus routing | Select when needing larger Flash, higher I/O count (152 pins), or fifth CAN channel-requires PCB redesign due to MAPBGA package |
| S912XDP512F0MLF | Same 512 KB Flash and 32 KB RAM but uses older S12XD architecture; lacks MPU, ECC Flash, and enhanced XGATE interrupt handling | Suitable for cost-sensitive legacy body modules where ASIL-B compliance is not required | Choose only for brownfield designs where S12XD toolchain compatibility outweighs system integrity enhancements of S12XE |
Compared with MC9S12XEP100MAB and S912XDP512F0MLF, the S912XEQ512J3MALR uniquely balances automotive-grade system integrity (MPU+ECC), CAN/LIN offloading (XGATE), and compact 144-pin LQFP packaging-making it optimal for new mid-tier body/gateway designs requiring AEC-Q100 Grade 0 and functional safety support without MAPBGA layout complexity.
Availability
S912XEQ512J3MALR is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateways, junction box controllers, and roof module applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for S912XEQ512J3MALR 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 expertise in automotive microcontrollers and functional safety.
The S912XEQ512J3MALR belongs to the S12XE family-designed specifically for automotive body electronics and gateway systems requiring enhanced system integrity (MPU, ECC), real-time I/O offloading (XGATE), and extended temperature operation without sacrificing 16-bit code efficiency.
FAQ
What is the operating temperature range for the S912XEQ512J3MALR?
The S912XEQ512J3MALR is rated for -40°C to 125°C ambient operation and qualified to AEC-Q100 Grade 0. This specification ensures reliable functionality in engine bay, junction box, and under-hood applications where thermal stress exceeds standard industrial ranges. The on-chip voltage regulator (VREG) and low-voltage detection circuitry maintain stable operation across this full range, and the Flash ECC corrects bit errors induced by temperature-related soft faults. S912XEQ512J3MALR's thermal design supports sustained 50 MHz bus frequency even at maximum junction temperature.
Does the S912XEQ512J3MALR support CAN FD?
No, the S912XEQ512J3MALR does not support CAN FD. It integrates four legacy MSCAN modules compliant only with ISO 11898-1:2003 (CAN 2.0A/B), supporting standard and extended identifiers, up to 1 Mbps bit rate, and 0–8 byte payloads. CAN FD capability requires newer architectures such as S32K or MagniV S12Z. For S912XEQ512J3MALR, CAN communication must adhere to classical CAN protocol constraints; however, its XGATE co-processor enables FULL-CAN mailbox handling and deterministic message filtering for complex gateway routing tasks within those limits.
What debug interface does the S912XEQ512J3MALR use?
The S912XEQ512J3MALR uses a single-wire Background Debug Mode (BDM) interface compliant with the Freescale/NXP BDM specification. This interface supports non-intrusive flash programming, real-time memory inspection, and hardware breakpoints via CodeWarrior or P&E Micro tools. Unlike JTAG, BDM requires only one dedicated pin (BKGD) plus ground, minimizing PCB footprint. The S912XEQ512J3MALR also includes xDBG hardware debug resources-four comparators and a 64-entry trace buffer-for advanced flow analysis. All debug features remain accessible in secured production devices if BDM is enabled via unsecured option bytes.
Is the S912XEQ512J3MALR pin-compatible with other S12XE derivatives?
Yes, the S912XEQ512J3MALR is pin-compatible with other 144-pin LQFP variants in the S12XE family-including S912XEP768, S912XEQ384, and S912XET256-within the same package variant (case no 918-03). Pin assignments for power, reset, oscillator, CAN, SCI, SPI, and GPIO are identical across these derivatives. However, peripheral enablement differs: S912XEQ512J3MALR has four MSCAN modules and two ATD converters, while S912XET256 offers only three CAN modules and one ATD. Firmware must be validated for peripheral register mapping differences despite mechanical pin compatibility.
What is the purpose of the XGATE co-processor in the S912XEQ512J3MALR?
The XGATE co-processor in the S912XEQ512J3MALR is a programmable 100 MHz RISC engine that autonomously handles time-critical peripheral tasks-including CAN message queuing, LIN frame generation, SPI transfers, and ATD trigger sequencing-without CPU intervention. It executes C-coded routines independently, uses shared RAM, and signals completion via interrupts. In S912XEQ512J3MALR applications, XGATE reduces CPU load by >60% during heavy CAN/LIN traffic, enabling deterministic response to safety-critical events while maintaining full 50 MHz bus throughput for application logic. Its dual-interrupt-level architecture prioritizes urgent I/O servicing.
S912XEQ512J3MALR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 112-LQFP
- Series:
- HCS12X
- Packaging:
- Tape & Reel (TR)
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XEQ512J3MALR FAQ
1.How can I place an order for S912XEQ512J3MALR through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512J3MALR 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 S912XEQ512J3MALR reliable?
The price and inventory of S912XEQ512J3MALR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512J3MALR is usually 5 days.
3.What payment methods are accepted for S912XEQ512J3MALR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512J3MALR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512J3MALR?
S912XEQ512J3MALR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512J3MALR 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 S912XEQ512J3MALR?
For technical support, including S912XEQ512J3MALR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512J3MALR requirements.
6.How does Aetrix verify that S912XEQ512J3MALR is sourced from the original manufacturer or authorized distributors?
All S912XEQ512J3MALR 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 S912XEQ512J3MALR meets industry standards.
7.What is the process for return or replacement of S912XEQ512J3MALR?
All S912XEQ512J3MALR units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512J3MALR, 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 S912XEQ512J3MALR part is unused and in its original packaging.
Return procedure for S912XEQ512J3MALR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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