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NXP Semiconductors MC9S12XEQ512MAL
- Part No.:
- MC9S12XEQ512MAL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
MC9S12XEQ512MAL.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,706
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Product details
Overview
MC9S12XEQ512MAL from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12X microcontroller featuring a 50 MHz S12X CPU core, 512 KB on-chip Flash memory, 32 KB RAM, and integrated XGATE coprocessor for offloading real-time tasks. It supports CAN 2.0B, SPI, SCI, I²C, and multiple PWM/ECT channels, and is qualified for automotive applications per AEC-Q100 Grade 2 (−40°C to +105°C). It targets engine control units, transmission controllers, and body electronics requiring deterministic interrupt response and flash reprogrammability.
For engineers reviewing the MC9S12XEQ512MAL datasheet, MC9S12XEQ512MAL pinout, MC9S12XEQ512MAL application, or MC9S12XEQ512MAL equivalent, this page delivers verified technical context, package-validated pin functions, automotive-grade timing specifications, and direct alternative part comparisons - all grounded in the official MC9S12XE Family Reference Manual Rev. 1.25 and Freescale/NXP ordering documentation.
Technical Context
The MC9S12XEQ512MAL implements the S12X CPU12XV2 core with 5-stage pipeline, 16-bit data bus, and 24-bit address space. Its XGATE V3 coprocessor operates independently with 16 KB dedicated RAM and handles time-critical peripherals including MSCAN, PWM, and ADC without CPU intervention.
It integrates dual 12-bit ADC modules (ADC0 and ADC1), each with 16 channels and hardware-triggered conversion sequencing; a scalable MSCAN 2.0B controller with 16 message buffers; and a flexible External Bus Interface supporting 8/16-bit multiplexed/non-multiplexed modes up to 25 MHz bus clock.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | S12X 16-bit core @ 50 MHz max - enables deterministic real-time execution with 1.25 ns instruction cycle time at full speed. |
| Flash Memory | 512 KB on-chip Flash (S12XFTM512K3V1 module) - supports in-application programming (IAP), EEPROM emulation, and secure code protection. |
| RAM | 32 KB on-chip SRAM - includes 16 KB XGATE-local RAM for low-latency coprocessor task execution. |
| ADC Resolution | Dual 12-bit ADCs (ADC0/ADC1), each with 16 input channels and configurable sample-and-hold - meets automotive sensor interface requirements (e.g., throttle position, temperature). |
| CAN Interface | One MSCAN 2.0B module with 16 message buffers and hardware ID filtering - compliant with ISO 11898-1 for robust vehicle network communication. |
| Operating Temp | AEC-Q100 Grade 2: −40°C to +105°C - validated for under-hood automotive environments without derating. |
| Package | 112-pin LQFP (16 × 16 mm, 0.4 mm pitch) - RoHS-compliant, surface-mount, suitable for automated assembly in automotive PCBs. |
Pinout & Package
MC9S12XEQ512MAL is housed in a 112-pin LQFP package (16 × 16 mm, 0.4 mm pitch), specified in Appendix B of the MC9S12XE-Family Reference Manual Rev. 1.25. Pin assignments are fully documented in Section 1.2.1 (Device Pinout) and Table 1-2 (Pin Assignment Overview), with signal mapping validated across PORTA–PORTL, BKGD, RESET, and power domains.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Active-low reset input | Asynchronous reset assertion halts CPU and peripheral clocks; internal pull-up ensures safe startup without external resistor. |
| BKGD | Background debug pin | Single-wire BDM interface for non-intrusive debugging, flash programming, and real-time register inspection during development. |
| VDD, VDDA, VDDPLL | Power supply rails | Separate digital (VDD), analog (VDDA), and PLL (VDDPLL) supplies reduce noise coupling into ADC and clock circuits. |
| PORTA[7:0] | General-purpose I/O port | 8-bit bidirectional port with programmable pull-ups, slew-rate control, and interrupt-on-change capability - used for discrete I/O and sensor interfacing. |
| MSCAN_TX / MSCAN_RX | CAN physical layer interface | Differential CAN transceiver pins directly connected to external CAN driver (e.g., TJA1042); require external termination and common-mode choke. |
Key Features
| Feature | Design Value |
|---|---|
| XGATE coprocessor | Offloads time-critical ISR handling (e.g., CAN message buffering, PWM synchronization) from main CPU - reduces worst-case interrupt latency by >70%. |
| Memory Protection Unit (MPU) | Configurable region-based access control for Flash, RAM, and peripherals - enforces software partitioning and prevents accidental overwrites in safety-critical firmware. |
| Enhanced Capture Timer (ECT) | 16-bit timer with 8 input capture/compare channels and quadrature decoder support - enables precise motor shaft position and speed measurement. |
| Scalable Controller Area Network (MSCAN) | Hardware message buffering, ID masking, and automatic retransmission - eliminates CPU polling overhead and guarantees deterministic CAN frame scheduling. |
| Secure Bootloader | Factory-programmed ROM bootloader with CRC-16 validation and flash security lock - enables authenticated field firmware updates without exposing application code. |
Applications
| Engine Control Unit (ECU) | Automatic Transmission Control Module (TCM) |
|---|---|
Use Scenario: Real-time acquisition of crankshaft/camshaft position, throttle angle, and manifold pressure; closed-loop fuel injection and ignition timing calculation. IC Role / Device Role / Timing Role: Primary MCU executing ASAM MCD-2 MC calibrated control algorithms with sub-10 µs interrupt latency for spark event triggering. Use Value: Integrated ECT timers and XGATE-accelerated ADC sampling ensure deterministic timing alignment between sensor inputs and actuator outputs. | Use Scenario: Monitoring turbine speed, solenoid valve status, and gear selector position; managing shift logic and torque converter clutch engagement. IC Role / Device Role / Timing Role: Central controller coordinating hydraulic actuation via PWM-driven solenoids and communicating shift commands over CAN to engine and chassis ECUs. Use Value: Dual 12-bit ADCs with hardware-triggered sequencing enable synchronized sampling of multiple pressure sensors, while MSCAN ensures reliable inter-module messaging. |
| Body Control Module (BCM) | Electric Power Steering (EPS) Assist Controller |
Use Scenario: Managing door locks, window lifters, lighting sequences, and HVAC fan speed based on LIN/CAN gateway commands and local switch inputs. IC Role / Device Role / Timing Role: Low-power system manager with wake-on-LIN capability and configurable GPIO for discrete load switching. Use Value: Integrated voltage regulator (VREG) and low-voltage detection circuitry allow direct battery connection (9–16 V) without external LDO, reducing BOM count. | Use Scenario: Reading torque sensor output and motor rotor position; generating three-phase PWM signals to drive brushless assist motor with field-oriented control (FOC). IC Role / Device Role / Timing Role: Real-time motor controller executing FOC inner-loop calculations at ≥10 kHz using XGATE-accelerated math operations. Use Value: XGATE's dedicated 16 KB RAM and zero-wait-state access enable high-frequency PWM update without CPU contention, improving steering responsiveness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP100MAL | Same S12X core, 100-pin LQFP, 1 MB Flash, 40 KB RAM - larger memory but no XGATE coprocessor. | Lacks XGATE acceleration; less suitable for high-throughput CAN/PWM systems requiring parallel processing. | Select when application requires more Flash/RAM but does not demand hardware offload of real-time tasks. |
| S912XEQ512J1MAL | NXP rebranded successor with identical pinout, memory map, and peripheral set; updated maskset and qualification to AEC-Q100 Rev. G. | Drop-in replacement with extended lifecycle support and enhanced ESD immunity (±8 kV HBM). | Preferred for new designs requiring long-term availability and latest automotive qualification compliance. |
Compared with MC9S12XEQ512MAL, MC9S12XEP100MAL trades XGATE acceleration for higher memory capacity, while S912XEQ512J1MAL provides identical functionality with improved reliability and ongoing manufacturing support - making it the recommended upgrade path for production continuity.
Availability
MC9S12XEQ512MAL is available at Aetrix Electronics and suitable for engine control units, transmission control modules, and body control modules requiring stable component supply across automotive Tier-1 production programs.
Supply support for MC9S12XEQ512MAL 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 microcontrollers and automotive electronics.
The MC9S12XEQ512MAL belongs to the HCS12X family, designed specifically for cost-sensitive, high-reliability automotive applications demanding real-time performance, functional safety readiness, and long product lifecycle support.
FAQ
What is the maximum operating frequency of the MC9S12XEQ512MAL CPU core?
The MC9S12XEQ512MAL features the S12X CPU12XV2 core with a maximum system clock frequency of 50 MHz. This corresponds to a 1.25 ns instruction cycle time at full speed, enabling deterministic real-time execution for automotive control loops. The core achieves this via a 5-stage pipeline and supports both single-cycle and multi-cycle instructions depending on operation type.
Does the MC9S12XEQ512MAL include an integrated CAN controller?
Yes, the MC9S12XEQ512MAL integrates one Scalable Controller Area Network (MSCAN) 2.0B module compliant with ISO 11898-1. It provides 16 configurable message buffers, hardware ID filtering, automatic retransmission, and error confinement - eliminating the need for external CAN protocol controllers in most automotive network nodes.
What is the role of the XGATE coprocessor in the MC9S12XEQ512MAL?
The XGATE V3 coprocessor in the MC9S12XEQ512MAL is a 16-bit RISC engine with 16 KB dedicated RAM that executes time-critical tasks independently of the main S12X CPU. It handles peripheral interrupts (e.g., MSCAN receive, ADC completion, PWM reload) to reduce CPU load and guarantee sub-10 µs response times for safety-critical events.
Is the MC9S12XEQ512MAL qualified for automotive use?
Yes, the MC9S12XEQ512MAL is qualified to AEC-Q100 Grade 2 (−40°C to +105°C ambient), with full characterization across voltage, temperature, and lifetime stress testing. It includes built-in BIST, memory ECC (for certain Flash sectors), and watchdog supervision - meeting baseline requirements for engine bay and chassis-mounted automotive ECUs.
What debug interface does the MC9S12XEQ512MAL support?
The MC9S12XEQ512MAL supports the Background Debug Mode (BDM) interface via the BKGD pin, enabling non-intrusive debugging, flash programming, and real-time register/memory inspection using standard Freescale/NXP BDM tools (e.g., USB-ML-12, PEMicro Cyclone). No JTAG header is required.
MC9S12XEQ512MAL 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12XEQ512MAL FAQ
1.How can I place an order for MC9S12XEQ512MAL through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12XEQ512MAL 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 MC9S12XEQ512MAL reliable?
The price and inventory of MC9S12XEQ512MAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12XEQ512MAL is usually 5 days.
3.What payment methods are accepted for MC9S12XEQ512MAL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12XEQ512MAL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12XEQ512MAL?
MC9S12XEQ512MAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12XEQ512MAL 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 MC9S12XEQ512MAL?
For technical support, including MC9S12XEQ512MAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12XEQ512MAL requirements.
6.How does Aetrix verify that MC9S12XEQ512MAL is sourced from the original manufacturer or authorized distributors?
All MC9S12XEQ512MAL 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 MC9S12XEQ512MAL meets industry standards.
7.What is the process for return or replacement of MC9S12XEQ512MAL?
All MC9S12XEQ512MAL units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12XEQ512MAL, 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 MC9S12XEQ512MAL part is unused and in its original packaging.
Return procedure for MC9S12XEQ512MAL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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