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NXP Semiconductors MC9S12XEQ384MAL
- Part No.:
- MC9S12XEQ384MAL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
MC9S12XEQ384MAL.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,825
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Product details
Overview
MC9S12XEQ384MAL 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 co-processor for offloading time-critical tasks. It supports CAN 2.0B, SPI, IIC, SCI, PWM, and 12-bit ADC with 16 channels - deployed in automotive body control modules requiring deterministic real-time response and functional safety support.
For engineers reviewing the MC9S12XEQ384MAL datasheet, MC9S12XEQ384MAL pinout, MC9S12XEQ384MAL application, or MC9S12XEQ384MAL equivalent, key selection criteria include its 112-pin LQFP package, 5V tolerant I/O, BDM debug interface, 384 KB flash with EEPROM emulation, and S12X CPU's enhanced instruction set supporting interrupt nesting and fast context switching.
Technical Context
The MC9S12XEQ384MAL implements the S12X CPU12XV2 core with 5-stage pipeline, 16-bit data bus, and 24-bit address space. It integrates dual 12-bit ADC modules (ADC0/ADC1), up to four 16-bit timer modules (ECT, TIM, PIT, FTM), and an XGATE RISC co-processor running at full bus speed to handle peripheral interrupts independently of the main CPU.
Its memory subsystem includes 384 KB flash organized in 2 KB sectors with 100K write/erase cycles, 24 KB RAM, and optional 4 KB EEPROM emulation via flash. The device supports multiple clock sources including internal VCO, external crystal (1–33 MHz), and PLL multiplication up to 50 MHz system frequency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | S12X 16-bit CPU with 5-stage pipeline, 50 MHz max operation - enables deterministic real-time execution and interrupt latency under 1.5 µs. |
| Flash Memory | 384 KB on-chip flash with 2 KB sector erase, 100K endurance - supports field firmware updates and EEPROM emulation. |
| RAM | 24 KB on-chip SRAM - sufficient for real-time task stacks, CAN message buffers, and ADC data buffering without external memory. |
| ADC Resolution | 12-bit successive approximation ADC with 16 input channels and hardware-triggered conversion - meets automotive sensor signal acquisition requirements. |
| Communication Interfaces | CAN 2.0B (2 channels), SPI (2), IIC (1), SCI (3), BDM - enables robust vehicle network integration and diagnostics. |
| Package | 112-pin LQFP (20 × 20 mm, 0.65 mm pitch) - compatible with standard automotive PCB assembly processes and thermal management. |
| Supply Voltage | 4.5–5.5 V operation - tolerates automotive battery transients and eliminates need for external voltage regulation in 5 V systems. |
Pinout & Package
MC9S12XEQ384MAL is housed in a 112-pin Low-Profile Quad Flat Package (LQFP) with exposed thermal pad, compliant with JEDEC MO-152AC. Pin assignments follow the S12XE family standard layout, supporting multiplexed I/O, dedicated CAN transceiver pins, and BDM debug interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply inputs | Separate digital, analog, and PLL power domains reduce noise coupling and improve ADC accuracy and clock stability. |
| VSS, VSSA, VSSPLL | Ground returns | Dedicated ground planes per domain ensure clean reference for analog and high-speed digital logic. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external watchdog or power-on reset signals. |
| MODA, MODB | Mode configuration inputs | Set boot mode (internal flash, external bus, or special test modes) at power-up; tied to VDD or GND. |
| XTAL, EXTAL | Crystal oscillator connections | Supports fundamental-mode crystals from 1–8 MHz; internal load capacitors eliminate external components. |
| CAN0TX, CAN0RX | CAN controller channel 0 I/O | Dedicated differential pair for CAN physical layer interface; requires external transceiver for bus connection. |
| BKGD | Background Debug pin | Single-wire BDM interface for non-intrusive debugging, flash programming, and real-time register inspection. |
Key Features
| Feature | Design Value |
|---|---|
| XGATE co-processor | 32-bit RISC engine running at full bus speed; handles up to 64 interrupts autonomously - reduces main CPU load and improves real-time determinism. |
| Memory Protection Unit (MPU) | Configurable protection regions for flash, RAM, and peripherals - enforces software partitioning for ASIL-B compliance and secure boot integrity. |
| Enhanced Capture Timer (ECT) | 16-bit timer with 8 input capture/compare channels, quadrature decoder, and programmable prescaler - ideal for motor position sensing and PWM generation. |
| Scalable CAN (MSCAN) | Two independent CAN 2.0B controllers with 64-message object buffers and flexible filtering - supports multi-node vehicle networks and diagnostics (UDS). |
| ADC with hardware triggers | 12-bit resolution, 16-channel mux, simultaneous sampling on dual ADCs, and trigger synchronization with ECT/PWM - enables precise sensor fusion timing. |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) Subsystem |
|---|---|
Use Scenario: Centralized control of door locks, lighting, wipers, and HVAC actuators in modern passenger vehicles. IC Role / Device Role / Timing Role: Main MCU executing real-time state machines, managing CAN communication with gateway, and processing discrete I/O and PWM outputs. Use Value: 384 KB flash accommodates complex feature sets and OTA update partitions; 5V tolerance simplifies interface with legacy automotive sensors and switches. |
Use Scenario: Secondary control node for throttle actuator, fuel pump driver, or turbocharger vane positioning in distributed powertrain architectures. IC Role / Device Role / Timing Role: Dedicated subsystem controller interfacing with main ECU via CAN, executing closed-loop PID control with sub-10 µs jitter. Use Value: XGATE offloads ADC sampling and PWM update tasks, freeing S12X CPU for safety-critical calculations and diagnostics. |
| Advanced Driver Assistance Systems (ADAS) Sensor Interface | Industrial Motor Drive Controller |
Use Scenario: Signal conditioning and preprocessing unit for radar or ultrasonic parking assist sensors. IC Role / Device Role / Timing Role: High-precision ADC acquisition synchronized to external trigger, timestamping via ECT, and CAN-based data forwarding. Use Value: Dual 12-bit ADCs with hardware trigger alignment enable phase-coherent sampling across multiple sensors - critical for time-of-flight calculation. |
Use Scenario: Compact BLDC motor controller for HVAC blowers, power seats, or industrial pumps. IC Role / Device Role / Timing Role: Real-time commutation logic generator using PWM with dead-time insertion, current sensing via ADC, and fault monitoring. Use Value: Integrated ECT and PWM modules provide precise 3-phase gate drive timing; 24 KB RAM supports observer-based sensorless control algorithms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP100MAL | 100 KB flash, 8 KB RAM, same 112-pin LQFP package and peripheral set - lower memory density but identical pinout and toolchain compatibility. | Suitable for cost-sensitive body electronics with reduced feature scope; lacks EEPROM emulation capability. | Select when firmware size remains under 96 KB and no runtime parameter storage is required. |
| S912XEQ512J2MAL | 512 KB flash, 32 KB RAM, same S12X core and peripheral complement - higher memory capacity with identical instruction set and debug interface. | Enables larger AUTOSAR-compliant stacks or dual-application partitioning; shares same footprint and thermal profile. | Choose for future-proofing or when integrating complex diagnostics, logging, or cybersecurity modules. |
Compared with MC9S12XEQ384MAL, MC9S12XEP100MAL offers lower memory and cost for simpler nodes, while S912XEQ512J2MAL extends scalability for advanced features - all maintain identical peripheral timing, interrupt structure, and BDM debug workflow.
Availability
MC9S12XEQ384MAL is available at Aetrix Electronics and suitable for automotive body control modules, engine subsystem controllers, and industrial motor drives requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MC9S12XEQ384MAL 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 applications, with deep heritage in automotive microcontrollers.
The S12XE family, including MC9S12XEQ384MAL, was designed specifically for cost-effective, high-reliability automotive body and powertrain control applications requiring ASIL-B readiness, robust EMC performance, and long product lifecycles.
FAQ
What is the maximum operating frequency of the MC9S12XEQ384MAL?
The MC9S12XEQ384MAL operates at a maximum system frequency of 50 MHz, achieved via its internal PLL with selectable multiplication factors (e.g., 4× or 8×) from an external 4–8 MHz crystal or internal RC oscillator. This frequency is sustained across the full industrial temperature range (−40°C to +125°C) and 4.5–5.5 V supply, enabling deterministic real-time execution for automotive control loops.
Does the MC9S12XEQ384MAL support EEPROM emulation?
Yes, the MC9S12XEQ384MAL supports EEPROM emulation using dedicated flash sectors configured via the Flash Configuration Field (FCFG). The device provides built-in drivers and wear-leveling routines in the standard S12X library, allowing up to 100K write/erase cycles for parameter storage - essential for retaining calibration data, odometer values, or user preferences across power cycles.
How many CAN interfaces does the MC9S12XEQ384MAL include?
The MC9S12XEQ384MAL integrates two independent Scalable CAN (MSCAN) controllers compliant with ISO 11898-1 (CAN 2.0B). Each supports 64 message objects, programmable acceptance filters, and automatic retransmission - enabling concurrent communication on chassis and powertrain CAN buses without external arbitration logic.
Is the MC9S12XEQ384MAL pin-compatible with other S12XE family members?
Yes, the MC9S12XEQ384MAL shares identical pinout and electrical characteristics with other 112-pin LQFP variants in the S12XE family, including MC9S12XEP100MAL and S912XEQ512J2MAL. This allows direct PCB reuse across memory-tier variants, reducing design validation effort and enabling scalable platform architecture.
What debug interface does the MC9S12XEQ384MAL use?
The MC9S12XEQ384MAL uses the Background Debug Mode (BDM) interface via the BKGD pin - a single-wire, synchronous serial protocol supporting full-speed debugging, flash programming, register inspection, and real-time trace without halting CPU execution. It is fully supported by P&E Micro and SEGGER J-Link adapters with S12X firmware.
MC9S12XEQ384MAL 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:
- 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 16x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12XEQ384MAL FAQ
1.How can I place an order for MC9S12XEQ384MAL through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12XEQ384MAL 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 MC9S12XEQ384MAL reliable?
The price and inventory of MC9S12XEQ384MAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12XEQ384MAL is usually 5 days.
3.What payment methods are accepted for MC9S12XEQ384MAL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12XEQ384MAL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12XEQ384MAL?
MC9S12XEQ384MAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12XEQ384MAL 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 MC9S12XEQ384MAL?
For technical support, including MC9S12XEQ384MAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12XEQ384MAL requirements.
6.How does Aetrix verify that MC9S12XEQ384MAL is sourced from the original manufacturer or authorized distributors?
All MC9S12XEQ384MAL 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 MC9S12XEQ384MAL meets industry standards.
7.What is the process for return or replacement of MC9S12XEQ384MAL?
All MC9S12XEQ384MAL units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12XEQ384MAL, 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 MC9S12XEQ384MAL part is unused and in its original packaging.
Return procedure for MC9S12XEQ384MAL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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