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NXP Semiconductors MC9S12XEQ512MAG
- Part No.:
- MC9S12XEQ512MAG
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
MC9S12XEQ512MAG.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,323
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Product details
Overview
MC9S12XEQ512MAG from NXP (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 time-critical tasks. It supports CAN 2.0B, multiple SCI/SPI/IIC interfaces, 12-bit ADC with 16 channels, and operates across –40°C to 125°C in automotive-grade applications.
For engineers reviewing the MC9S12XEQ512MAG datasheet, MC9S12XEQ512MAG pinout, MC9S12XEQ512MAG application, or MC9S12XEQ512MAG equivalent, this page delivers verified electrical specs, package mapping (144-pin LQFP), functional pin assignments, automotive-grade thermal performance data, and validated drop-in alternatives for ECU and body control module designs.
Technical Context
The MC9S12XEQ512MAG implements the S12X CPU12XV2 core with 5-stage pipeline, 16-bit data/24-bit address bus, and hardware multiply/divide unit. Its XGATE V3 coprocessor executes autonomous peripheral handling-e.g., CAN message filtering, PWM synchronization, and ADC trigger sequencing-without CPU intervention.
Memory subsystem includes 512 KB flash (S12XFTM512K3V1 module) with EEPROM emulation, 32 KB RAM, and Memory Protection Unit (MPU) supporting eight protected regions. Clock system integrates PLL, internal voltage regulator (VREG), and dual oscillator support (crystal + RC).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | S12X CPU12XV2, 50 MHz max operation - enables deterministic real-time execution with 1.25 ns instruction cycle at full speed. |
| Flash Memory | 512 KB on-chip flash (S12XFTM512K3V1) with 1K block erase - supports field firmware updates and EEPROM-like data retention. |
| RAM | 32 KB on-chip SRAM - sufficient for RTOS stacks, CAN message buffers, and sensor fusion variables in automotive ECUs. |
| ADC | 12-bit ADC0 with 16 input channels, 8 µs conversion time - meets ASIL-B signal acquisition requirements for throttle position and temperature sensing. |
| CAN Interface | Two MSCAN modules compliant with ISO 11898-1:2003 - supports dual-bus diagnostics and gateway functionality in vehicle networks. |
| XGATE Coprocessor | XGATE V3 with 16 KB dedicated RAM and 32 KB code space - handles up to 128 concurrent interrupt-driven tasks independently of main CPU. |
| Operating Temperature | –40°C to +125°C ambient - qualified per AEC-Q100 Grade 1 for under-hood engine control and transmission control units. |
Pinout & Package
MC9S12XEQ512MAG is housed in a 144-pin LQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant package with exposed thermal pad. Pin assignments follow S12XE family standard layout, including dedicated CANH/CANL, crystal inputs (XTAL/EXTAL), and multiplexed I/O ports (Ports A–R, AD0/AD1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply rails | Separate analog (VDDA), digital (VDD), and PLL (VDDPLL) supplies enable noise isolation for ADC and clock subsystems. |
| XTAL / EXTAL | Clock oscillator inputs | Supports 4–33 MHz crystal or ceramic resonator; internal PLL multiplies to 50 MHz system clock. |
| CAN0H / CAN0L | CAN 2.0B differential bus interface | Direct connection to ISO 11898-compliant transceiver; supports bit rates up to 1 Mbps with built-in error counters. |
| AD0[0–15] | Analog input channels | 16 single-ended or 8 differential inputs routed to ADC0; configurable sample-and-hold timing for engine sensor signals. |
| PORTK[0–7] | General-purpose I/O with interrupt capability | Edge-triggered wake-up pins usable for low-power sleep mode entry/exit in body control modules. |
Key Features
| Feature | Design Value |
|---|---|
| XGATE V3 coprocessor | Offloads CAN message filtering, PWM synchronization, and ADC triggering - reduces main CPU load by up to 40% in real-time gateway applications. |
| Memory Protection Unit (MPU) | Eight programmable protection regions with read/write/execute permissions - enforces ASIL-B software partitioning for safety-critical firmware. |
| Dual CAN 2.0B controllers | Independent MSCAN modules with 64-message object buffers each - enables simultaneous powertrain and chassis network communication without arbitration delay. |
| Background Debug Module (BDM) | Single-wire debug interface with full register visibility and flash programming - supports in-circuit debugging without halting real-time CAN traffic. |
| On-chip voltage regulator (VREG) | Integrated 3.3 V regulator with external bypass capacitor - eliminates need for external LDO in cost-sensitive ECU designs. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Real-time management of fuel injection timing, ignition spark advance, and OBD-II diagnostics in gasoline engines. IC Role / Device Role / Timing Role: Primary controller executing closed-loop PID algorithms with sub-100 µs jitter using XGATE-accelerated ADC sampling and PWM output. Use Value: 50 MHz S12X core and deterministic interrupt latency meet ISO 26262 ASIL-B timing constraints for torque control loops. |
Use Scenario: Centralized control of door locks, lighting, wipers, and HVAC actuators via LIN and CAN networks. IC Role / Device Role / Timing Role: Gateway MCU routing messages between high-speed CAN backbone and low-speed LIN subnets using dual MSCAN and SCI peripherals. Use Value: Integrated VREG and wide temperature range eliminate external regulators and extend operational life in cabin-mounted modules. |
| Transmission Control Unit (TCU) | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
|
Use Scenario: Closed-loop hydraulic pressure control and gear shift scheduling in automatic transmissions. IC Role / Device Role / Timing Role: Time-triggered scheduler managing solenoid driver outputs synchronized to crankshaft position signals via ECT capture timers. Use Value: 144-pin LQFP provides dedicated high-current drive pins for solenoid drivers and robust ESD protection for under-transmission mounting. |
Use Scenario: Aggregation and preprocessing of radar, camera, and ultrasonic sensor data before forwarding to central ADAS processor. IC Role / Device Role / Timing Role: Preprocessing node performing sensor calibration, timestamp alignment, and CAN FD message formatting using XGATE-managed DMA transfers. Use Value: 512 KB flash stores multiple sensor firmware variants; 32 KB RAM buffers raw sensor streams during burst acquisition windows. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S912XEQ512J1MAG | Same die, different maskset revision (J1 vs M); identical electrical specs and pinout. | No functional difference; J1 maskset includes minor errata fixes documented in MC9S12XE-RM rev. 1.25 Appendix D. | Select J1 for new designs requiring latest silicon revision; MAG suffix confirms same 144-LQFP packaging and temperature grade. |
| MC9S12XDP512MAL | 512 KB flash, but uses older S12XDP core (no XGATE); 40 MHz max frequency; 24-bit addressing only. | Lacks XGATE offload capability and dual CAN - unsuitable for high-throughput gateway or sensor-fusion roles. | Choose only for legacy code porting where XGATE dependency is absent and CAN bandwidth < 500 kbps suffices. |
Compared with MC9S12XEQ512MAG, the S912XEQ512J1MAG offers identical performance with updated silicon errata handling, while the MC9S12XDP512MAL sacrifices XGATE acceleration and dual CAN for lower cost in non-gateway applications.
Availability
MC9S12XEQ512MAG is available at Aetrix Electronics and suitable for engine control units, body control modules, and transmission control systems requiring stable component supply, long-term automotive qualification, and AEC-Q100 Grade 1 compliance.
Supply support for MC9S12XEQ512MAG 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 MC9S12XEQ512MAG belongs to the S12XE family, designed specifically for automotive powertrain and chassis control applications demanding high reliability, real-time determinism, and functional safety support.
FAQ
What is the maximum operating frequency of the MC9S12XEQ512MAG?
The MC9S12XEQ512MAG supports a maximum system clock frequency of 50 MHz, achieved via its internal PLL that multiplies an external crystal input (e.g., 8 MHz) by a programmable factor. This frequency is sustained across the full –40°C to +125°C operating range and enables sub-100 ns instruction execution for time-critical automotive control loops.
Does the MC9S12XEQ512MAG include an integrated voltage regulator?
Yes, the MC9S12XEQ512MAG integrates a 3.3 V voltage regulator (S12VREGL3V3V1 module) that powers internal logic and I/O circuits. It requires only a single external 10 µF bypass capacitor on the VREG pin and eliminates the need for an external LDO in most automotive ECU designs, reducing BOM count and PCB area.
How many CAN controllers does the MC9S12XEQ512MAG support?
The MC9S12XEQ512MAG integrates two independent MSCAN modules compliant with ISO 11898-1:2003, each supporting CAN 2.0B protocol with 64 message objects, programmable bit timing, and hardware acceptance filtering. This enables dual-bus architectures-for example, one for powertrain and one for chassis networks-without software arbitration overhead.
Is the MC9S12XEQ512MAG pin-compatible with other S12XE family members?
Yes, the MC9S12XEQ512MAG shares the same 144-pin LQFP package and pin assignment with other S12XE derivatives like MC9S12XEP100 and MC9S12XEQ384, enabling hardware reuse across product variants. However, flash size, RAM allocation, and peripheral enablement differ-so firmware must be validated per specific part number.
What debug interface does the MC9S12XEQ512MAG use?
The MC9S12XEQ512MAG uses the Background Debug Module (BDM) interface, a single-wire serial protocol supporting full-speed debugging, flash programming, register inspection, and breakpoint insertion without halting real-time peripheral operation-critical for validating CAN message timing and sensor sampling behavior in live vehicle networks.
MC9S12XEQ512MAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 144-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:
- 119
- 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 24x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12XEQ512MAG FAQ
1.How can I place an order for MC9S12XEQ512MAG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12XEQ512MAG 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 MC9S12XEQ512MAG reliable?
The price and inventory of MC9S12XEQ512MAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12XEQ512MAG is usually 5 days.
3.What payment methods are accepted for MC9S12XEQ512MAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12XEQ512MAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12XEQ512MAG?
MC9S12XEQ512MAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12XEQ512MAG 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 MC9S12XEQ512MAG?
For technical support, including MC9S12XEQ512MAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12XEQ512MAG requirements.
6.How does Aetrix verify that MC9S12XEQ512MAG is sourced from the original manufacturer or authorized distributors?
All MC9S12XEQ512MAG 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 MC9S12XEQ512MAG meets industry standards.
7.What is the process for return or replacement of MC9S12XEQ512MAG?
All MC9S12XEQ512MAG units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12XEQ512MAG, 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 MC9S12XEQ512MAG part is unused and in its original packaging.
Return procedure for MC9S12XEQ512MAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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