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NXP Semiconductors MC9S12XEQ512MAA
- Part No.:
- MC9S12XEQ512MAA
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
MC9S12XEQ512MAA.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,161
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Product details
Overview
MC9S12XEQ512MAA from NXP (formerly Freescale) is a 16-bit HCS12X-family 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 I/O tasks. It supports CAN 2.0B, SPI, SCI, IIC, PWM, ADC12 (16-channel, 12-bit), and multiple timer modules including ECT, PIT, and FTM. Designed for automotive body control and industrial embedded systems requiring deterministic interrupt response and functional safety support.
For engineers reviewing the MC9S12XEQ512MAA datasheet, MC9S12XEQ512MAA pinout, MC9S12XEQ512MAA application, or MC9S12XEQ512MAA equivalent, key selection criteria include its 512 KB flash capacity, dual-CAN interface with MSCAN modules, XGATE acceleration for time-critical peripherals, 12-bit ADC with external trigger capability, and qualification to AEC-Q100 Grade 2 (−40°C to +105°C).
Technical Context
The MC9S12XEQ512MAA implements the S12X CPU12XV2 core with enhanced addressing modes, 24-bit linear addressing, and hardware multiply/divide. Its memory subsystem includes 512 KB flash organized in 2 KB sectors with EEPROM emulation, 32 KB RAM, and configurable memory protection via MPU registers.
Real-time I/O handling is augmented by the XGATE V3 coprocessor - an autonomous 16-bit RISC engine with 2 KB local RAM and dedicated interrupt vector table - enabling parallel execution of background tasks such as CAN message filtering, PWM synchronization, or ADC data pre-processing without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | S12X 16-bit core @ 50 MHz max; supports 24-bit linear addressing and hardware multiply/divide for deterministic math operations. |
| Flash Memory | 512 KB on-chip flash with 2 KB sector erase, 100K write/erase cycles, and EEPROM emulation capability. |
| RAM | 32 KB on-chip SRAM with error detection (ECC not supported); used for stack, variables, and XGATE local memory. |
| ADC | 12-bit successive-approximation ADC with 16 input channels, programmable sample time, and external trigger support for synchronized sampling. |
| CAN Interfaces | Dual independent MSCAN modules compliant with ISO 11898-1; each supports CAN 2.0B protocol, 1 MBps baud rate, and 64-message object buffers. |
| XGATE Coprocessor | Autonomous 16-bit RISC engine with 2 KB RAM, dedicated interrupt controller, and ability to service up to 63 interrupts independently of main CPU. |
| Operating Temperature | AEC-Q100 Grade 2 qualified: −40°C to +105°C ambient; suitable for under-hood automotive and harsh industrial environments. |
Pinout & Package
MC9S12XEQ512MAA is housed in a 112-pin LQFP (16 × 16 mm, 0.4 mm pitch) package with exposed thermal pad. Pin functions are defined per S12XE family signal assignment tables, supporting multiplexed I/O across 10 ports (A, B, C, D, E, H, J, K, P, T) and dedicated peripheral pins for CANH/CANL, XTAL/EXTAL, RESET, BKGD, and voltage regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Active-low reset input | Asynchronous reset assertion halts CPU and peripherals; 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 operation. |
| CAN0H / CAN0L | CAN differential bus pair | Direct connection to ISO 11898-compliant transceiver; supports high-speed CAN up to 1 Mbps with built-in bus-off recovery logic. |
| CAN1H / CAN1L | Second CAN differential bus pair | Independent from CAN0; enables dual-bus architectures (e.g., powertrain + body networks) with separate message objects and filters. |
| XTAL / EXTAL | Crystal oscillator inputs | Supports fundamental-mode quartz crystals (4–33 MHz); internal oscillator circuit eliminates need for external capacitors in basic configurations. |
| VREGIN / VDD / VSS | Power supply terminals | VREGIN accepts 5.0 V ±10%; internal regulator supplies 2.5 V core and 3.3 V I/O; requires external 10 µF ceramic bypass capacitor at VDD. |
Key Features
| Feature | Design Value |
|---|---|
| XGATE coprocessor | Offloads time-critical I/O tasks (CAN filtering, ADC triggering, PWM updates) from main CPU, reducing latency and jitter in real-time control loops. |
| Dual MSCAN modules | Enables concurrent communication on two isolated CAN buses with independent message buffers, acceptance masks, and error counters - critical for automotive domain controllers. |
| Memory Protection Unit (MPU) | Configurable region-based access control for flash, RAM, and peripheral registers; prevents unintended writes and supports ASIL-B software partitioning. |
| Enhanced Capture Timer (ECT) | 16-bit timer with 8 input capture/compare channels, quadrature decoding, and programmable prescaler - ideal for motor position/speed sensing and encoder interfacing. |
| 12-bit ADC with external trigger | Supports synchronized sampling across multiple channels using ECT or PWM signals; essential for closed-loop motor control and sensor fusion applications. |
Applications
| Automotive Body Control Module (BCM) | Industrial Motor Drive Controller |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, lighting, and seat position in modern vehicles. IC Role / Device Role / Timing Role: Primary MCU managing CAN network communication, analog sensor acquisition (potentiometers, temp sensors), and PWM-driven actuator outputs. Use Value: Dual CAN interfaces enable separation of comfort and chassis networks; XGATE handles window anti-pinch timing-critical edge detection without CPU load. |
Use Scenario: Closed-loop speed and torque control of 3-phase BLDC motors in HVAC blowers or conveyor drives. IC Role / Device Role / Timing Role: Real-time executor of field-oriented control (FOC) algorithms, ADC sampling synchronization, and six-step commutation timing. Use Value: 12-bit ADC with external trigger aligns sampling to PWM zero-crossings; ECT module provides precise encoder pulse counting and phase measurement. |
| Commercial Vehicle Telematics Gateway | Smart Power Distribution Unit (PDU) |
Use Scenario: Aggregation and routing of data between J1939 vehicle bus, GPS module, cellular modem, and diagnostic port. IC Role / Device Role / Timing Role: Protocol gateway with dual CAN (J1939 + diagnostics), UART-to-CAN bridging, and secure firmware update handling. Use Value: XGATE manages CAN message filtering and store-and-forward buffering; 512 KB flash accommodates dual-application images for fail-safe OTA updates. |
Use Scenario: Solid-state replacement of mechanical relays/fuses in EV charging stations or battery management systems. IC Role / Device Role / Timing Role: Supervisor MCU monitoring current/voltage sensors, controlling MOSFET gate drivers, and enforcing overcurrent shutdown within <10 µs. Use Value: Hardware-triggered ADC conversion and fast GPIO toggle via ECT output compare ensure sub-microsecond response to fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP100MAL | Same S12X architecture but with 1 MB flash, 48 KB RAM, and additional MSCAN channel; larger LQFP-144 package. | Targeted at higher-end gateways or ADAS domain controllers requiring more code space and peripheral concurrency. | Select when >512 KB flash or third CAN channel is required; not pin-compatible due to different package and pin count. |
| S912XEQ512J1MAG | NXP rebranded version of same die; identical electrical specs, memory map, and pinout; differs only in marking and packaging documentation. | No functional difference; used interchangeably in production where legacy Freescale part numbers are phased out. | Drop-in replacement with identical footprint, timing, and software compatibility; preferred for new designs sourcing from current NXP portfolio. |
Compared with MC9S12XEQ512MAA, MC9S12XEP100MAL offers greater memory and peripheral headroom at the cost of larger PCB area and higher BOM cost, while S912XEQ512J1MAG provides identical functionality with updated lifecycle support and NXP's long-term supply commitment.
Availability
MC9S12XEQ512MAA is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, and commercial telematics applications requiring stable component supply, AEC-Q100 qualification, and long-term industrial availability.
Supply support for MC9S12XEQ512MAA 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, RF, and analog technologies.
The MC9S12XEQ512MAA belongs to the S12XE family - engineered for cost-sensitive, high-reliability automotive body electronics and industrial control applications where deterministic real-time performance and functional safety features are essential.
FAQ
What is the maximum operating frequency of the MC9S12XEQ512MAA?
The MC9S12XEQ512MAA operates at a maximum core frequency of 50 MHz, achieved via internal PLL multiplication of the crystal oscillator input (typically 8–16 MHz). This frequency is sustained across the full AEC-Q100 Grade 2 temperature range (−40°C to +105°C) with appropriate decoupling and thermal design.
Does the MC9S12XEQ512MAA support EEPROM emulation?
Yes, the MC9S12XEQ512MAA supports EEPROM emulation using its on-chip 512 KB flash memory. The flash module includes dedicated routines and wear-leveling algorithms accessible via the Flash Command Register (FCR), enabling reliable non-volatile storage of calibration data, configuration parameters, and event logs with up to 100,000 write/erase cycles.
How many CAN interfaces does the MC9S12XEQ512MAA provide?
The MC9S12XEQ512MAA integrates two fully independent MSCAN modules (CAN0 and CAN1), each compliant with ISO 11898-1 and supporting CAN 2.0B protocol, bit rates up to 1 Mbps, and 64 message object buffers. Both modules operate concurrently with separate registers, interrupt vectors, and acceptance filtering logic.
Is the XGATE coprocessor in the MC9S12XEQ512MAA programmable in C?
Yes, the XGATE coprocessor in the MC9S12XEQ512MAA is programmable in ANSI C using the S12X GCC toolchain or CodeWarrior IDE. XGATE code executes from dedicated 2 KB RAM and uses a separate interrupt vector table; standard C libraries and inline assembly are supported for time-critical peripheral handling.
What debug interface does the MC9S12XEQ512MAA use?
The MC9S12XEQ512MAA uses the Background Debug Mode (BDM) single-wire interface via the BKGD pin for non-intrusive debugging, flash programming, and real-time register/memory inspection. It supports full breakpoint, watchpoint, and trace capabilities through compatible debug probes such as PE Micro Cyclone or SEGGER J-Link with BDM firmware.
MC9S12XEQ512MAA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-QFP
- 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:
- 59
- 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 12x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12XEQ512MAA FAQ
1.How can I place an order for MC9S12XEQ512MAA through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12XEQ512MAA 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 MC9S12XEQ512MAA reliable?
The price and inventory of MC9S12XEQ512MAA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12XEQ512MAA is usually 5 days.
3.What payment methods are accepted for MC9S12XEQ512MAA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12XEQ512MAA transactions.
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4.How is shipping managed for MC9S12XEQ512MAA?
MC9S12XEQ512MAA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12XEQ512MAA 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 MC9S12XEQ512MAA?
For technical support, including MC9S12XEQ512MAA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12XEQ512MAA requirements.
6.How does Aetrix verify that MC9S12XEQ512MAA is sourced from the original manufacturer or authorized distributors?
All MC9S12XEQ512MAA 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 MC9S12XEQ512MAA meets industry standards.
7.What is the process for return or replacement of MC9S12XEQ512MAA?
All MC9S12XEQ512MAA units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12XEQ512MAA, 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 MC9S12XEQ512MAA part is unused and in its original packaging.
Return procedure for MC9S12XEQ512MAA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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