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NXP Semiconductors MC9S12XEQ384MAG
- Part No.:
- MC9S12XEQ384MAG
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
MC9S12XEQ384MAG.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,650
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Product details
Overview
MC9S12XEQ384MAG from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12X microcontroller featuring a 50 MHz S12X CPU core, 384 KB on-chip flash memory, 24 KB RAM, and integrated XGATE coprocessor for offloading time-critical tasks. It supports CAN 2.0B, SPI, IIC, SCI, PWM, ADC12 (12-bit, 16-channel), and ECT timer modules, and is qualified for automotive applications per AEC-Q100 Grade 2 (-40°C to +105°C).
For engineers reviewing the MC9S12XEQ384MAG datasheet, MC9S12XEQ384MAG pinout, MC9S12XEQ384MAG application, or MC9S12XEQ384MAG equivalent, this page delivers verified technical context, package-validated pin functions, real-world automotive and industrial control use cases, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The MC9S12XEQ384MAG implements the S12X CPU12XV2 core with enhanced addressing modes, 24-bit linear addressing, and instruction pipelining. Its XGATE coprocessor operates independently with its own 2 KB RAM and supports up to 16 priority-based interrupts, enabling deterministic response to CAN, ADC, or PWM events without CPU intervention.
It integrates dual 12-bit ADCs (ADC0 and ADC1), each with 16 input channels and configurable sample-and-hold timing; a 16-bit Enhanced Capture Timer (ECT) with 8 input capture/compare channels; and a scalable MSCAN module compliant with ISO 11898-1, supporting bit rates up to 1 Mbps and programmable message buffers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | S12X 16-bit core, 50 MHz max frequency - enables deterministic real-time control with 24-bit addressing for large code/data spaces. |
| Flash Memory | 384 KB on-chip flash (S12XFTM384K2V1 module) - supports in-application programming (IAP) and EEPROM emulation via flash sectors. |
| RAM | 24 KB on-chip RAM - includes 2 KB dedicated to XGATE coprocessor for autonomous peripheral handling. |
| ADC Resolution | 12-bit, dual independent converters (ADC0/ADC1) - provides simultaneous sampling of up to 16 analog inputs with configurable conversion triggers. |
| CAN Interface | Scalable Controller Area Network (MSCAN) - fully compliant with CAN 2.0B, supports 1 Mbps, 64 message buffers, and hardware ID filtering. |
| Operating Temp | AEC-Q100 Grade 2: −40°C to +105°C - validated for under-hood automotive environments and industrial motor control enclosures. |
| Supply Voltage | 4.5 V to 5.5 V single supply - eliminates need for external voltage regulation in 5 V system architectures. |
Pinout & Package
MC9S12XEQ384MAG is housed in a 112-pin LQFP (16 × 16 mm, 0.4 mm pitch) package, designated as "MAG" in Freescale/NXP ordering nomenclature. Pin assignments are defined in Chapter 1.2.1 ("Device Pinout") and Appendix B of the MC9S12XE-Family Reference Manual Rev. 1.25.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Active-low reset input | Asynchronous hard reset; initiates internal power-on reset sequence and clears CPU registers and peripheral states. |
| XTAL/EXTAL | Crystal oscillator connection | Supports 4–33 MHz Pierce oscillator configuration; drives internal PLL for 50 MHz core clock generation. |
| PORTA[7:0] | General-purpose I/O port | 8-bit bidirectional port with configurable pull-ups, slew rate control, and interrupt-on-change capability. |
| CANRX / CANTX | CAN physical layer interface | Dedicated differential receiver (CANRX) and transmitter (CANTX) pins - require external CAN transceiver for bus coupling. |
| VDDA / VSSA | Analog power supply/ground | Isolated analog domain pins - must be decoupled separately to ensure <1 LSB noise in 12-bit ADC conversions. |
| AD0[15:0] | ADC0 analog input channels | 16 dedicated analog inputs mapped to PORTAD0/PORTAD1; support multiplexed sampling with hardware trigger synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| XGATE coprocessor | Independent 16-bit RISC engine with 2 KB RAM - handles CAN message buffering, ADC data pre-processing, and PWM updates without CPU load. |
| Memory Protection Unit (MPU) | Configurable region-based protection for flash, RAM, and peripherals - enforces secure boot and prevents accidental overwrites during firmware updates. |
| Background Debug Module (BDM) | Single-wire debug interface with full read/write access to memory and registers - enables non-intrusive real-time debugging and flash programming. |
| Enhanced Capture Timer (ECT) | 16-bit timer with 8 input capture/compare channels and quadrature decoder mode - supports precise motor position/speed measurement and servo control. |
| Scalable MSCAN | 64-message buffer FIFO with hardware ID acceptance filtering and loopback self-test mode - reduces software overhead in multi-node CAN networks. |
Applications
| Engine Control Unit (ECU) | Electric Power Steering (EPS) |
|---|---|
|
Use Scenario: Real-time monitoring of crankshaft/camshaft position, throttle angle, manifold pressure, and oxygen sensor signals in gasoline/diesel engines. IC Role / Device Role / Timing Role: Primary controller executing fuel injection timing, spark advance, and closed-loop air-fuel ratio correction at ≤10 ms cycle intervals. Use Value: Integrated 12-bit ADC with hardware-triggered sampling and XGATE-managed CAN messaging ensures deterministic execution of safety-critical combustion control loops. |
Use Scenario: Torque assist calculation, motor current sensing, and steering angle feedback processing in 12 V automotive EPS systems. IC Role / Device Role / Timing Role: Central MCU coordinating BLDC motor commutation via PWM, reading torque sensor ADC outputs, and communicating with vehicle CAN backbone. Use Value: Dual ADCs enable simultaneous sampling of motor phase currents and torque sensor; ECT quadrature decoding supports high-resolution rotor position tracking. |
| Industrial Motor Drive | Commercial HVAC Controller |
|
Use Scenario: Closed-loop speed/position control of 3-phase AC induction or BLDC motors in pumps, compressors, and conveyors. IC Role / Device Role / Timing Role: Real-time PWM generation with dead-time insertion, current sensing ADC acquisition, and fault detection logic execution. Use Value: Hardware PWM synchronization with ADC sampling and XGATE-offloaded overcurrent interrupt handling reduce jitter to <100 ns for stable field-oriented control (FOC). |
Use Scenario: Multi-zone temperature/humidity regulation, damper actuation, and refrigerant pressure monitoring in rooftop HVAC units. IC Role / Device Role / Timing Role: System coordinator interfacing with thermostats, CO₂ sensors, and modulating valves via analog I/O and serial buses. Use Value: 384 KB flash accommodates complex PID scheduling and seasonal setpoint algorithms; CAN interface enables integration into building management systems (BMS). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP100MAL | 100-pin LQFP, 1 MB flash, 32 KB RAM, same S12X core and peripheral set - lacks XGATE coprocessor. | Higher flash/RAM capacity suits complex bootloader + application partitioning; no XGATE limits real-time peripheral offload. | Select when larger code space is required and deterministic coprocessor offload is not needed. |
| S912XEQ512J2MAG | NXP rebranded successor: identical 112-pin LQFP, 512 KB flash, 32 KB RAM, added LINPHY module, same XGATE and MSCAN. | Direct upgrade path with increased memory and LIN bus support - requires minor register mapping adjustments for new LIN registers. | Select for new designs needing extended memory headroom and LIN communication capability. |
Compared with MC9S12XEQ384MAG, MC9S12XEP100MAL trades XGATE acceleration for greater flash capacity, while S912XEQ512J2MAG extends memory and adds LIN without sacrificing real-time performance - making it the preferred migration path for future-proofed automotive control units.
Availability
MC9S12XEQ384MAG is available at Aetrix Electronics and suitable for engine control units, electric power steering systems, and industrial motor drives requiring stable component supply across extended product lifecycles.
Supply support for MC9S12XEQ384MAG 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 acquired Freescale in 2015 and maintains full support for the S12X family, including documentation, tools, and long-term supply commitments for automotive-grade microcontrollers.
The MC9S12XEQ384MAG belongs to the HCS12X automotive microcontroller line, designed specifically for real-time, safety-conscious applications such as powertrain control, chassis systems, and body electronics where deterministic timing and AEC-Q100 compliance are mandatory.
FAQ
What is the maximum operating frequency of the MC9S12XEQ384MAG?
The MC9S12XEQ384MAG features an S12X CPU core rated for a maximum internal bus frequency of 50 MHz. This is achieved using an internal PLL driven by an external crystal (typically 8–16 MHz) connected to XTAL/EXTAL pins. The core executes instructions at this frequency with zero wait states for on-chip flash access, ensuring deterministic real-time performance in automotive control loops.
Does the MC9S12XEQ384MAG include a hardware CAN controller?
Yes, the MC9S12XEQ384MAG integrates a Scalable Controller Area Network (MSCAN) module compliant with ISO 11898-1 and CAN 2.0B. It supports bit rates up to 1 Mbps, 64 message buffers with hardware ID filtering, and loopback self-test mode - all without CPU intervention, making it suitable for ASAM-compliant automotive network nodes.
What development tools are supported for the MC9S12XEQ384MAG?
The MC9S12XEQ384MAG is supported by NXP's S32 Design Studio (legacy Codewarrior compatibility), the U-Multilink FX debugger, and evaluation boards such as the DEMO9S12XEP100. Code generation tools like Processor Expert and HAL drivers are available, and the Background Debug Module (BDM) enables single-wire flash programming and real-time debugging without halting CPU execution.
How is the XGATE coprocessor used in the MC9S12XEQ384MAG?
The XGATE coprocessor in the MC9S12XEQ384MAG is a 16-bit RISC engine with dedicated 2 KB RAM that operates asynchronously from the main S12X CPU. It handles time-critical tasks including CAN message buffering, ADC data preprocessing, and PWM update synchronization - reducing main CPU load and enabling sub-microsecond interrupt response times for safety-critical automotive functions.
What is the temperature grade and qualification status of the MC9S12XEQ384MAG?
The MC9S12XEQ384MAG is qualified to AEC-Q100 Grade 2, specifying operation from −40°C to +105°C ambient temperature. It undergoes full automotive qualification testing including HTOL, TC, ESD, and EMC validation - confirming suitability for under-hood engine control, transmission control, and other demanding automotive subsystems.
MC9S12XEQ384MAG 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:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 24K 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:
MC9S12XEQ384MAG FAQ
1.How can I place an order for MC9S12XEQ384MAG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12XEQ384MAG 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 MC9S12XEQ384MAG reliable?
The price and inventory of MC9S12XEQ384MAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12XEQ384MAG is usually 5 days.
3.What payment methods are accepted for MC9S12XEQ384MAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12XEQ384MAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12XEQ384MAG?
MC9S12XEQ384MAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12XEQ384MAG 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 MC9S12XEQ384MAG?
For technical support, including MC9S12XEQ384MAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12XEQ384MAG requirements.
6.How does Aetrix verify that MC9S12XEQ384MAG is sourced from the original manufacturer or authorized distributors?
All MC9S12XEQ384MAG 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 MC9S12XEQ384MAG meets industry standards.
7.What is the process for return or replacement of MC9S12XEQ384MAG?
All MC9S12XEQ384MAG units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12XEQ384MAG, 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 MC9S12XEQ384MAG part is unused and in its original packaging.
Return procedure for MC9S12XEQ384MAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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