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NXP Semiconductors MC9S12XDT512MAL
- Part No.:
- MC9S12XDT512MAL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
MC9S12XDT512MAL.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,361
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Product details
Overview
MC9S12XDT512MAL from NXP (formerly Freescale) is a 16-bit HCS12X microcontroller featuring a dual-core architecture with S12X CPU and XGATE co-processor, 512 KB on-chip Flash, 32 KB RAM, and integrated CAN 2.0B, SPI, SCI, I²C, PWM, and 10-bit ADC with 16 channels. It operates at up to 50 MHz core frequency and targets automotive body control modules, industrial motor controllers, and embedded gateway applications requiring deterministic real-time response.
For engineers reviewing the MC9S12XDT512MAL datasheet, MC9S12XDT512MAL pinout, MC9S12XDT512MAL application, or MC9S12XDT512MAL equivalent, key selection considerations include its 112-pin LQFP package, maskset-specific memory mapping (e.g., 32 KB XGATE-accessible RAM), dual-voltage operation (VDD = 4.5–5.5 V, VDDA = 3.15–3.6 V), and support for background debug via BDM interface.
Technical Context
The MC9S12XDT512MAL implements the S12X CPU core with enhanced instruction set and pipeline, coupled with an autonomous 16-bit RISC XGATE coprocessor that offloads peripheral interrupt handling and data preprocessing. Its memory subsystem includes 512 KB Flash organized in 2-KB sectors, 32 KB RAM (with 8 KB XGATE-only access), and 2 KB EEPROM - all supporting single-cycle access in expanded modes.
Peripheral integration includes two independent CAN 2.0B controllers, six SCI modules, three SPI interfaces, eight PWM channels with center-aligned/edge-aligned modes, and dual 10-bit ATD converters (ATD0: 16-channel, ATD1: 8-channel), each supporting hardware-triggered conversions and configurable sample-and-hold timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12X 16-bit CPU + XGATE 16-bit RISC coprocessor; enables parallel execution of main firmware and time-critical ISR offload. |
| Flash Memory | 512 KB on-chip Flash with 2-KB sector erase; supports in-application programming (IAP) and secure boot via flash protection bits. |
| RAM | 32 KB total RAM: 24 KB CPU/XGATE shared, 8 KB XGATE-exclusive; enables zero-wait-state co-processor data buffering. |
| ADC Resolution & Channels | Two 10-bit ATD modules: ATD0 (16 inputs, 8-bit/10-bit selectable), ATD1 (8 inputs); supports simultaneous sampling and external trigger synchronization. |
| CAN Interfaces | Dual independent CAN 2.0B controllers with 64-message object buffers each; supports bit rates up to 1 Mbps and automatic retransmission. |
| Operating Voltage | VDD = 4.5–5.5 V (digital), VDDA = 3.15–3.6 V (analog); separate analog/digital supplies reduce noise coupling in mixed-signal operation. |
| Max Core Frequency | 50 MHz (via PLL); achieved using internal voltage regulator and external crystal (4–8 MHz) or ceramic resonator input. |
Pinout & Package
MC9S12XDT512MAL is housed in a 112-pin LQFP (16 × 16 mm, 0.4 mm pitch) package with exposed thermal pad. Pin functions are defined per maskset L15Y and validated for automotive-grade thermal and EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Active-low reset input | Asynchronous hardware reset; debounced internally; initiates full chip initialization including register clearing and vector fetch. |
| EXTAL / XTAL | Crystal oscillator input/output | Drives Pierce oscillator circuit; supports 4–8 MHz fundamental-mode crystals for stable clock generation and PLL reference. |
| PORTA[7:0] | General-purpose I/O port | 8-bit bidirectional port with configurable pull-up/pull-down; supports interrupt-on-change and used for GPIO, address bus expansion, or SCI multiplexing. |
| CAN0_TX / CAN0_RX | CAN controller channel 0 differential I/O | Direct connection to external CAN transceiver; compliant with ISO 11898-2 physical layer signaling requirements. |
| AD0[15:0] | Analog input channels for ATD0 | 16 dedicated analog input pins; share PORTA/PORTK pins; support programmable gain (x1/x2/x4) and differential input mode. |
Key Features
| Feature | Design Value |
|---|---|
| XGATE coprocessor | Offloads up to 90% of peripheral interrupt service overhead, freeing S12X CPU for application logic and enabling deterministic sub-10 µs latency for critical events. |
| Dual CAN 2.0B controllers | Enables concurrent communication on two isolated CAN buses - e.g., powertrain CAN + body CAN - without software arbitration or shared resource contention. |
| Background Debug Module (BDM) | Single-wire debug interface supporting non-intrusive real-time register/memory inspection, breakpoint insertion, and flash programming during live operation. |
| Flash security lock | Configurable flash protection prevents unauthorized read-out or modification; supports mass erase disable and backdoor key access for field updates. |
| Enhanced Capture Timer (ECT) | 8-channel timer with input capture, output compare, and pulse-width measurement capability; supports quadrature decoding and edge-aligned PWM generation. |
Applications
| Automotive Body Control Unit (BCU) | Industrial Motor Drive Controller |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirrors, lighting, and HVAC actuators in 12 V vehicle platforms. IC Role / Device Role / Timing Role: Main system controller executing LIN/CAN gateway logic, sensor fusion (potentiometers, temp sensors), and PWM-driven actuator drivers. Use Value: Dual CAN interfaces enable seamless integration with vehicle backbone and sub-networks; XGATE handles LIN frame assembly/disassembly in real time without CPU load. |
Use Scenario: Closed-loop speed/torque control of 3-phase BLDC motors in pumps, compressors, and conveyors. IC Role / Device Role / Timing Role: Real-time motion controller coordinating ADC sampling (current/voltage feedback), PWM generation (6-channel complementary outputs), and encoder position capture. Use Value: Integrated ECT and PWM modules provide synchronized 100 ns resolution timing for precise commutation; ATD0's 16-channel scan supports multi-sensor monitoring without external MUX. |
| Commercial Vehicle Gateway | Smart Energy Meter Interface |
Use Scenario: Protocol translation between J1939 (CAN), Modbus RTU (SCI), and proprietary fleet telematics radios. IC Role / Device Role / Timing Role: Protocol bridge with dual CAN ports, six SCI interfaces, and SPI-connected external memory/RTC. Use Value: XGATE executes J1939 message filtering and checksum validation independently, reducing CPU utilization by >40% versus software-only implementation. |
Use Scenario: Secure metering node aggregating pulse inputs (kWh), RS-485 Modbus data, and tamper detection signals in utility smart meters. IC Role / Device Role / Timing Role: Secure data acquisition and cryptographic signing engine using on-chip EEPROM for key storage and flash-based firmware update rollback. Use Value: Flash security features prevent cloning or firmware tampering; dual ATD modules allow simultaneous sampling of voltage/current phase pairs for accurate RMS calculation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XDP512MAL | Same S12X family, identical 512 KB Flash and 112-pin LQFP, but includes additional external bus interface (EBI) and different peripheral mix (e.g., no second CAN). | Preferred where external SRAM/Flash expansion is required; less suitable for dual-CAN systems. | Select when system requires external memory interface and only one CAN channel is needed. |
| S912XEQ512J2MAG | NXP S12XE derivative with same pinout, 512 KB Flash, but upgraded to 64 KB RAM and enhanced CAN FD support (requires external transceiver). | Better suited for next-gen automotive networks requiring higher bandwidth and improved error handling. | Choose for new designs targeting CAN FD migration path while maintaining PCB compatibility. |
Compared with MC9S12XDT512MAL, MC9S12XDP512MAL trades dual CAN for external bus capability, while S912XEQ512J2MAG extends memory and adds CAN FD readiness - making the original optimal for cost-sensitive dual-CAN automotive nodes where legacy protocol compliance is mandatory.
Availability
MC9S12XDT512MAL is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, commercial vehicle gateways, and smart energy metering requiring stable component supply across extended temperature ranges (−40°C to +125°C).
Supply support for MC9S12XDT512MAL 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 dating to Motorola's 68HC11 era.
The MC9S12XDT512MAL belongs to the HCS12X family, designed specifically for cost-optimized, high-reliability automotive body and chassis control applications requiring real-time determinism, functional safety readiness (ASIL-B capable), and long-term supply stability.
FAQ
What is the maximum operating frequency of the MC9S12XDT512MAL?
The MC9S12XDT512MAL achieves a maximum core frequency of 50 MHz using its on-chip PLL, which multiplies an external 4–8 MHz crystal or resonator input. This frequency is sustained across the full industrial temperature range (−40°C to +125°C) when powered within the specified VDD (4.5–5.5 V) and VDDA (3.15–3.6 V) ranges. The MC9S12XDT512MAL's PLL includes lock detection and fail-safe clock monitor to ensure reliable operation under voltage or frequency perturbation.
Does the MC9S12XDT512MAL support in-circuit debugging?
Yes, the MC9S12XDT512MAL integrates a Background Debug Module (BDM) compliant with the standard single-wire debug interface. This allows full non-intrusive debugging - including breakpoints, register inspection, memory read/write, and flash programming - using standard tools like P&E Micro's Cyclone or SEGGER J-Link with BDM adapter. The MC9S12XDT512MAL's BDM operates independently of the main CPU clock and remains functional even in low-power stop modes.
How many CAN controllers does the MC9S12XDT512MAL integrate?
The MC9S12XDT512MAL integrates two fully independent CAN 2.0B controllers (CAN0 and CAN1), each with its own 64-message object buffer, acceptance filtering, and bit-rate configuration registers. Both controllers support standard and extended identifiers, automatic retransmission, and error confinement - enabling robust dual-bus architectures such as powertrain + body domain separation. This dual-CAN capability is a defining feature distinguishing the MC9S12XDT512MAL from other S12X derivatives like the DP512.
What is the role of the XGATE coprocessor in the MC9S12XDT512MAL?
The XGATE coprocessor in the MC9S12XDT512MAL is a 16-bit RISC engine that operates in parallel with the main S12X CPU to handle time-critical peripheral interrupts - such as CAN message reception, ADC conversion completion, or PWM reload events - without CPU intervention. It has dedicated 8 KB RAM, direct peripheral register access, and semaphore-based synchronization. In the MC9S12XDT512MAL, XGATE reduces average interrupt latency to under 10 µs and frees the S12X CPU for application-layer tasks, improving overall system determinism.
Is the MC9S12XDT512MAL qualified for automotive applications?
Yes, the MC9S12XDT512MAL is AEC-Q100 qualified for Grade 2 (−40°C to +105°C) and Grade 1 (−40°C to +125°C) operation, with full qualification documentation available from NXP. It includes automotive-specific features such as enhanced ESD protection (±8 kV HBM), built-in clock monitor, COP watchdog, flash security lock, and production-tested manufacturing traceability. These attributes make the MC9S12XDT512MAL suitable for ASIL-B–compliant automotive body control modules per ISO 26262.
MC9S12XDT512MAL 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:
- 80MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, IrDA, LINbus, 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:
- 20K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.35V ~ 5.5V
- Data Converters:
- A/D 16x10b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12XDT512MAL FAQ
1.How can I place an order for MC9S12XDT512MAL through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12XDT512MAL 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 MC9S12XDT512MAL reliable?
The price and inventory of MC9S12XDT512MAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12XDT512MAL is usually 5 days.
3.What payment methods are accepted for MC9S12XDT512MAL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12XDT512MAL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12XDT512MAL?
MC9S12XDT512MAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12XDT512MAL 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 MC9S12XDT512MAL?
For technical support, including MC9S12XDT512MAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12XDT512MAL requirements.
6.How does Aetrix verify that MC9S12XDT512MAL is sourced from the original manufacturer or authorized distributors?
All MC9S12XDT512MAL 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 MC9S12XDT512MAL meets industry standards.
7.What is the process for return or replacement of MC9S12XDT512MAL?
All MC9S12XDT512MAL units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12XDT512MAL, 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 MC9S12XDT512MAL part is unused and in its original packaging.
Return procedure for MC9S12XDT512MAL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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