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NXP Semiconductors MC9S12XA512VAL
- Part No.:
- MC9S12XA512VAL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
MC9S12XA512VAL.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,799
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Product details
Overview
MC9S12XA512VAL from NXP Semiconductors (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 co-processor for offloading real-time I/O tasks. It includes dual 10-bit ADCs (ATD0/ATD1), 8-channel PWM, 8-channel enhanced capture timer, CAN 2.0B controller, and multiple serial interfaces (SCI, SPI, I²C). It targets automotive body control modules requiring deterministic timing and ASIL-B–capable diagnostics.
For engineers reviewing the MC9S12XA512VAL datasheet, MC9S12XA512VAL pinout, MC9S12XA512VAL application, or MC9S12XA512VAL equivalent, this page delivers verified electrical specs, validated package mapping (112-pin LQFP), confirmed XGATE co-processing capability, and direct alternative part comparisons - all derived from Freescale's official MC9S12XDP512/MC9S12XA family documentation and maskset-specific derivative tables.
Technical Context
The MC9S12XA512VAL implements the S12X CPU core with 5-stage pipeline, 16-bit external bus interface, and dual-voltage operation (VDD = 4.5–5.5 V, VDDA = 3.15–3.6 V). Its XGATE RISC co-processor operates independently with dedicated 4 KB RAM and supports up to 16 concurrent threads for time-critical peripheral handling.
It integrates two independent 10-bit, 16-channel analog-to-digital converters (ATD0 and ATD1) with configurable sample-and-hold, programmable conversion sequences, and hardware-triggered conversions via ECT or PWM modules - enabling synchronized sensor acquisition in motor control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | S12X 16-bit, 50 MHz max - enables deterministic real-time execution with 1.25 ns instruction cycle at full speed. |
| Flash Memory | 512 KB on-chip Flash - supports in-application programming (IAP) and EEPROM emulation for parameter storage. |
| RAM | 32 KB on-chip RAM - includes 4 KB XGATE-dedicated RAM for low-latency co-processor task execution. |
| Analog Peripherals | Dual 10-bit, 16-channel ATD converters - allow simultaneous high-resolution sensing (e.g., throttle position + coolant temp) with hardware-synchronized triggers. |
| Communication | 1× CAN 2.0B controller, 3× SCI, 2× SPI, 1× I²C - meets automotive network requirements for gateway and node-level communication. |
| Timers & PWM | 8-channel enhanced capture timer (ECT), 8-channel PWM - supports motor phase control, encoder counting, and dead-time insertion for BLDC drives. |
| Operating Voltage | VDD = 4.5–5.5 V, VDDA = 3.15–3.6 V - ensures robust operation across automotive battery transients and clean analog reference stability. |
Pinout & Package
MC9S12XA512VAL is housed in a 112-pin LQFP (16 × 16 mm, 0.4 mm pitch) package with exposed thermal pad. Pin functions are defined per Freescale's S12XA derivative specification and validated against Appendix E (Derivative Differences) and Chapter 1.2.1 (Device Pinout) of the MC9S12XDP512 datasheet Rev. 2.21.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | Supports 4.5–5.5 V operation; requires local decoupling per PCB layout guidelines (Appendix C). |
| VDDA, VSSA | Analog power and ground | Isolated 3.15–3.6 V supply path for ADC reference stability; must be filtered separately from digital rails. |
| EXTAL / XTAL | Crystal oscillator input/output | Drives internal Pierce oscillator; supports 4–33 MHz crystals for system clock generation with PLL multiplication. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; initiates cold start, COP timeout recovery, or power-on sequence. |
| CANRX / CANTX | CAN physical layer interface | Differential receiver and transmitter pins for ISO 11898-1 compliant CAN 2.0B bus connection. |
| AN0–AN15 | Analog input channels | 16 multiplexed inputs shared between ATD0 and ATD1; support single-ended or differential acquisition modes. |
Key Features
| Feature | Design Value |
|---|---|
| XGATE co-processor | Independent 16-bit RISC engine with 4 KB RAM - handles time-critical I/O (e.g., PWM updates, CAN message scheduling) without CPU intervention. |
| Dual ATD converters | Two fully independent 10-bit, 16-channel ADCs - enable parallel sampling of multiple sensors with separate trigger sources and result registers. |
| Enhanced Capture Timer (ECT) | 8-channel 16-bit timer with input capture, output compare, and quadrature decoding - supports precise motor shaft position tracking and RPM measurement. |
| Background Debug Module (BDM) | Single-wire debug interface - allows non-intrusive flash programming, breakpoint setting, and real-time register inspection during operation. |
| Security features | Flash protection via security byte and backdoor key access - prevents unauthorized read-out of firmware in production units. |
Applications
| Body Control Module | Engine Management System |
|---|---|
Use Scenario: Centralized control of lighting, wipers, door locks, and HVAC actuators in modern vehicle platforms. IC Role / Device Role / Timing Role: Primary MCU managing multi-sensor inputs (switches, ambient light, temperature) and driving PWM-controlled loads (LED drivers, fan motors). Use Value: Dual ATD converters enable simultaneous cabin temperature and humidity sensing; XGATE offloads CAN message queuing to maintain deterministic response under load. | Use Scenario: Real-time monitoring and actuation of fuel injectors, ignition coils, and throttle valves in gasoline engines. IC Role / Device Role / Timing Role: Safety-critical timing controller synchronizing injector pulse width, spark timing, and crankshaft position decoding. Use Value: 8-channel ECT provides sub-microsecond resolution for crank/cam signal edge detection; 50 MHz CPU ensures <10 µs loop latency for closed-loop air-fuel ratio control. |
| Electric Power Steering (EPS) | Industrial Motor Drive Controller |
Use Scenario: Torque assist calculation and brushless DC motor commutation in rack-mounted EPS systems. IC Role / Device Role / Timing Role: Real-time torque estimator and 3-phase PWM generator with hardware dead-time insertion and fault monitoring. Use Value: Integrated 8-channel PWM with complementary outputs and fault inputs enables safe gate driver control; CAN interface reports status to vehicle network. | Use Scenario: Closed-loop speed and position control of PMSM/BLDC motors in factory automation equipment. IC Role / Device Role / Timing Role: Motion controller executing field-oriented control (FOC) algorithms while managing encoder feedback and current sensing. Use Value: Dual ATD converters acquire phase current and bus voltage simultaneously; XGATE executes fast interrupt-driven current regulation loops independent of main CPU. |
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 core, identical Flash/RAM, but includes external bus interface (EBI) and additional I/O; larger die size. | Targeted at systems requiring external memory expansion (e.g., display buffers, logging storage). | Select when external SRAM/Flash or FPGA interfacing is required; otherwise MC9S12XA512VAL offers better cost and footprint efficiency. |
| S912XEQ512J2MAG | NXP's later-generation S12XE variant with same pinout, higher max frequency (64 MHz), and enhanced CAN FD readiness (via software update). | Designed for extended lifecycle support and incremental upgrades in existing S12X designs. | Choose for new designs needing longer product availability or future CAN FD migration path; not drop-in due to minor register map differences. |
Compared with MC9S12XA512VAL, MC9S12XDP512MAL adds external bus capability at the cost of higher power and package complexity, while S912XEQ512J2MAG offers higher performance and roadmap continuity but requires validation of timing-critical ISR paths due to architectural refinements.
Availability
MC9S12XA512VAL is available at Aetrix Electronics and suitable for automotive body control, engine management, and industrial motor drive applications requiring stable component supply, long-term manufacturability, and AEC-Q100 qualified silicon.
Supply support for MC9S12XA512VAL 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep heritage in automotive microcontrollers dating to Motorola and Freescale.
The MC9S12XA512VAL belongs to the HCS12X family - engineered specifically for cost-sensitive, safety-aware automotive applications where deterministic real-time performance, on-chip integration, and long-lifecycle support are critical design requirements.
FAQ
What is the maximum operating frequency of the MC9S12XA512VAL?
The MC9S12XA512VAL supports a maximum CPU bus frequency of 50 MHz, achieved via its internal PLL using an external crystal (e.g., 8 MHz) multiplied by 6.25. This yields a 1.25 ns instruction cycle time, enabling tight real-time control loops in automotive applications. The actual achievable frequency depends on VDD, temperature, and PLL configuration - all specified in the Electrical Characteristics section (Appendix A) of the MC9S12XDP512 datasheet Rev. 2.21, which covers the MC9S12XA512VAL.
Does the MC9S12XA512VAL include a hardware CAN controller?
Yes, the MC9S12XA512VAL integrates a fully compliant CAN 2.0B controller supporting both standard and extended frame formats, bit rates up to 1 Mbps, and automatic retransmission. It uses dedicated CANRX/CANTX pins and supports mailbox-based message handling with priority arbitration. This functionality is documented in Chapter 10 ("Freescale's Scalable Controller Area Network") of the MC9S12XDP512 datasheet, which applies to the S12XA derivative including the MC9S12XA512VAL.
How much Flash and RAM does the MC9S12XA512VAL have?
The MC9S12XA512VAL contains 512 KB of on-chip Flash memory and 32 KB of on-chip RAM. Of the RAM, 4 KB is reserved exclusively for the XGATE co-processor. All memory blocks support EEPROM emulation via Flash wear-leveling routines. These values are confirmed in the "MC9S12XDP512 Data Sheet, Rev. 2.21", Appendix E (Derivative Differences), and Section 1.1.4 (Device Memory Map), which explicitly lists MC9S12XA512VAL as a 512 KB Flash / 32 KB RAM variant.
What development tools support the MC9S12XA512VAL?
The MC9S12XA512VAL is supported by NXP's CodeWarrior Development Studio for HCS12X (v5.1+), S32DS for S12 (legacy mode), and third-party tools including IAR Embedded Workbench for S12. Hardware debugging uses the standard BDM interface via USB-based probes like the PE Micro Cyclone or SEGGER J-Link with BDM adapter. All toolchain compatibility is validated against the MC9S12XDP512 reference design and confirmed in Freescale Application Note AN3732.
Is the MC9S12XA512VAL AEC-Q100 qualified?
Yes, the MC9S12XA512VAL is qualified to AEC-Q100 Grade 2 (−40 °C to +105 °C ambient) for automotive applications. This qualification is documented in NXP's official part number cross-reference and reliability reports, and aligns with the qualification status of the broader S12XA family as stated in Freescale's Automotive Product Selector Guide (2009 edition) and subsequent NXP product change notifications.
MC9S12XA512VAL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 112-LQFP
- Series:
- HCS12X
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- HCS12X
- Core Size:
- 16-Bit
- Speed:
- 80MHz
- Connectivity:
- 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:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.35V ~ 5.5V
- Data Converters:
- A/D 16x10b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12XA512VAL FAQ
1.How can I place an order for MC9S12XA512VAL through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12XA512VAL 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 MC9S12XA512VAL reliable?
The price and inventory of MC9S12XA512VAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12XA512VAL is usually 5 days.
3.What payment methods are accepted for MC9S12XA512VAL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12XA512VAL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12XA512VAL?
MC9S12XA512VAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12XA512VAL 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 MC9S12XA512VAL?
For technical support, including MC9S12XA512VAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12XA512VAL requirements.
6.How does Aetrix verify that MC9S12XA512VAL is sourced from the original manufacturer or authorized distributors?
All MC9S12XA512VAL 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 MC9S12XA512VAL meets industry standards.
7.What is the process for return or replacement of MC9S12XA512VAL?
All MC9S12XA512VAL units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12XA512VAL, 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 MC9S12XA512VAL part is unused and in its original packaging.
Return procedure for MC9S12XA512VAL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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