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NXP Semiconductors S912XEQ512F1MALR
- Part No.:
- S912XEQ512F1MALR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
S912XEQ512F1MALR.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,670
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Product details
Overview
S912XEQ512F1MALR from NXP Semiconductors (formerly Freescale) is a 16-bit automotive microcontroller featuring the CPU12X core, 512 KB on-chip Flash with ECC, 32 KB RAM, and integrated MSCAN, XGATE co-processor, and enhanced PWM/ATD modules. It targets body control modules and gateway applications requiring robust real-time CAN/LIN communication, fault-tolerant memory, and operation from −40°C to 125°C.
For engineers reviewing the S912XEQ512F1MALR datasheet, S912XEQ512F1MALR pinout, S912XEQ512F1MALR application, or S912XEQ512F1MALR equivalent, key selection criteria include its 144-pin LQFP package, dual ATD converters (8ch total), 4 CAN modules, 6 SCI interfaces, and MPU-enabled system integrity for ASIL-B–capable automotive subsystems.
Technical Context
The S912XEQ512F1MALR 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 to offload CAN, LIN, SPI, and timer interrupts. Its memory subsystem includes 512 KB Flash with 1-bit correction / 2-bit detection ECC, 32 KB SRAM, and 4 KB emulated EEPROM (D-Flash based).
It integrates four MSCAN modules compliant with CAN 2.0A/B, six SCI modules supporting LIN master/slave via XGATE, and two 8-channel ATD converters with 3 µs 10-bit conversion time. The device supports non-multiplexed external bus interface only in 144-pin LQFP and larger packages - confirmed for this variant - enabling glueless expansion with asynchronous memories.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU12X 16-bit core, instruction-compatible with S12 family (excluding five fuzzy instructions) |
| Max Bus Frequency | 50 MHz CPU bus, 100 MHz XGATE bus - enables deterministic I/O offloading without CPU stalls |
| Memory | 512 KB Flash (ECC-protected), 32 KB RAM, 4 KB emulated EEPROM - supports secure, field-upgradable firmware storage |
| CAN Interfaces | 4 × MSCAN modules - provides multi-bus gateway capability with FULL-CAN performance when used with XGATE |
| ADC | 2 × ATD modules, 8 channels each, 10-bit resolution, 3 µs conversion - suitable for sensor monitoring in body electronics |
| Package | 144-pin LQFP, 20×20 mm, 0.5 mm pitch - RoHS-compliant, automotive-grade thermal and mechanical reliability |
| Temperature Range | −40°C to 125°C - qualified for under-hood and powertrain-adjacent automotive environments |
Pinout & Package
Package: 144-pin LQFP (20×20 mm, 0.5 mm pitch), case number 918-03. Pinout validated per MC9S12XE Data Sheet Rev. 7 and Freescale Application Note AN3749.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply inputs | Separate analog, digital, and PLL supplies enable optimized EMC filtering and noise isolation |
| VSS, VSSA, VSSPLL | Ground returns | Dedicated ground paths per supply domain reduce coupling and improve signal integrity |
| RESET | Active-low reset input | Asynchronous, debounced reset with internal POR and LVD supervision |
| XTAL, EXTAL | Crystal oscillator terminals | Supports 4–16 MHz Pierce crystal; internal transconductance optimized for fast, reliable startup |
| CAN0_TX, CAN0_RX | CAN0 differential signal pair | Direct connection to external CAN transceiver; supports bit rates up to 1 Mbps |
| SCI0_TX, SCI0_RX | LIN/CAN gateway serial interface | SCI0 configured as LIN master/slave; XGATE-managed for zero-CPU-overhead protocol handling |
| PWM0–PWM7 | Pulse-width modulated outputs | 8-channel 8-bit or 4-channel 16-bit PWM with center/left-aligned modes and emergency shutdown |
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 NMI on violation |
| XGATE Co-processor | Programmable in C, handles all peripheral interrupts (CAN, SCI, SPI, timers); frees CPU for application logic |
| ECC on Flash | 64-bit data + 8-bit syndrome bits per word - corrects single-bit errors and detects double-bit faults during read/write |
| Enhanced ATD | Two independent converters with internal oscillator support - enables analog wake-up from STOP mode |
| API Timer | Asynchronous periodic interrupt active in Full Stop mode, trimmable to ±10%, 0.2 ms–13 s range - ideal for low-power cyclic tasks |
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 I/O drivers, sensor inputs, and inter-bus communication via CAN and LIN. Use Value: XGATE offloads CAN/LIN protocol stacks while CPU executes safety-critical state machines; MPU isolates firmware partitions for ASIL-B compliance. |
Use Scenario: Bridging between high-speed powertrain CAN, body CAN, and LIN subnetworks in distributed vehicle architectures. IC Role / Device Role / Timing Role: Real-time message routing and protocol translation with deterministic latency and fault containment. Use Value: Four independent MSCAN modules + six SCI interfaces allow concurrent multi-bus operation; API timer enables precise sleep/wake scheduling for energy efficiency. |
| Roof Module Controller | Seat Control Unit |
Use Scenario: Managing sunroof, panoramic roof, and ambient lighting with position feedback and overcurrent protection. IC Role / Device Role / Timing Role: Sensor fusion hub with ATD inputs, PWM-driven motor control, and CAN diagnostics reporting. Use Value: Dual 8-channel ATD converters monitor potentiometers and current shunts; 8-channel PWM drives bidirectional motors with emergency stop. |
Use Scenario: Controlling seat position, heating, ventilation, and memory functions using local switches and CAN commands. IC Role / Device Role / Timing Role: Local actuator controller with LIN slave interface to central BCM and CAN status reporting. Use Value: SCI modules configured as LIN slaves handle local switch polling; EEE retains seat position profiles across power cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP100MABR | 1 MB Flash, 64 KB RAM, 5 CAN, 208-pin MAPBGA - higher memory and I/O count | Targeted at flagship gateways or advanced body controllers requiring >512 KB code space | Select when full S12XE feature set (e.g., 5 CAN, 252 I/O) and BGA layout are required |
| S912XEQ384F1MALR | 384 KB Flash, 24 KB RAM, same 144-pin LQFP package and peripheral set | Cost-optimized variant for simpler body nodes where 512 KB is not needed | Choose for footprint-compatible migration path with reduced Flash/RAM; identical pinout and software compatibility |
Compared with S912XEQ512F1MALR, the MC9S12XEP100MABR offers greater memory and I/O scalability but requires PCB redesign due to BGA packaging, while the S912XEQ384F1MALR maintains full pin and software compatibility at lower memory capacity - enabling direct drop-in replacement where firmware size permits.
Availability
S912XEQ512F1MALR is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateways, and seat/roof control units requiring stable component supply, long lifecycle assurance, and AEC-Q100 qualification.
Supply support for S912XEQ512F1MALR 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, and IoT applications, delivering secure, energy-efficient, and scalable silicon solutions.
The S912XEQ512F1MALR belongs to the S12XE family - engineered specifically for automotive body electronics and gateway systems demanding enhanced system integrity, real-time I/O offloading via XGATE, and functional safety support up to ASIL-B.
FAQ
What is the maximum operating temperature rating for the S912XEQ512F1MALR?
The S912XEQ512F1MALR is rated for operation from −40°C to 125°C, meeting AEC-Q100 Grade 0 requirements for under-hood and high-temperature automotive environments. This rating is verified per Freescale's qualification test plan and applies to the full 144-pin LQFP package configuration of the S912XEQ512F1MALR.
Does the S912XEQ512F1MALR support CAN FD or only classical CAN?
The S912XEQ512F1MALR supports only classical CAN 2.0A/B protocols - it features four MSCAN modules with bit rates up to 1 Mbps and full software compatibility with legacy S12 CAN peripherals. CAN FD is not implemented in the S12XE family; the S912XEQ512F1MALR does not include CAN FD controllers, transceivers, or frame format support.
Is the S912XEQ512F1MALR pin-compatible with other S12XE derivatives like the S912XEQ384F1MALR?
Yes, the S912XEQ512F1MALR is fully pin-compatible with the S912XEQ384F1MALR and S912XET256F1MALR in the 144-pin LQFP package. All share identical pin assignments, electrical characteristics, and peripheral mapping - enabling hardware reuse and firmware scaling across memory variants of the S12XE family.
What debug interface does the S912XEQ512F1MALR use, and is it supported by modern tools?
The S912XEQ512F1MALR uses the Background Debug Mode (BDM) single-wire interface, fully supported by P&E Microcomputer Systems' USB-ML-12 and Cyclone programmers, as well as legacy CodeWarrior IDE. While newer ARM-based debug standards are not applicable, BDM remains actively maintained for S12XE production programming and in-circuit debugging of the S912XEQ512F1MALR.
How is EEPROM functionality implemented on the S912XEQ512F1MALR?
The S912XEQ512F1MALR implements emulated EEPROM (EEE) using dedicated D-Flash sectors - 4 KB of user-accessible non-volatile storage with automatic wear leveling, single-bit error correction, and atomic write operations managed by the on-chip Memory Controller. This EEE functionality is integral to the S912XEQ512F1MALR and requires no external components.
S912XEQ512F1MALR 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:
S912XEQ512F1MALR FAQ
1.How can I place an order for S912XEQ512F1MALR through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512F1MALR 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 S912XEQ512F1MALR reliable?
The price and inventory of S912XEQ512F1MALR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512F1MALR is usually 5 days.
3.What payment methods are accepted for S912XEQ512F1MALR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512F1MALR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512F1MALR?
S912XEQ512F1MALR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512F1MALR 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 S912XEQ512F1MALR?
For technical support, including S912XEQ512F1MALR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512F1MALR requirements.
6.How does Aetrix verify that S912XEQ512F1MALR is sourced from the original manufacturer or authorized distributors?
All S912XEQ512F1MALR 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 S912XEQ512F1MALR meets industry standards.
7.What is the process for return or replacement of S912XEQ512F1MALR?
All S912XEQ512F1MALR units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512F1MALR, 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 S912XEQ512F1MALR part is unused and in its original packaging.
Return procedure for S912XEQ512F1MALR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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