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NXP Semiconductors MC9S12XHZ512CAG
- Part No.:
- MC9S12XHZ512CAG
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
MC9S12XHZ512CAG.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,285
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Product details
Overview
MC9S12XHZ512CAG from NXP (formerly Freescale) is a 16-bit HCS12X-family automotive-grade microcontroller featuring 512 KB on-chip Flash, 32 KB RAM, and integrated XGATE co-processor for real-time peripheral offload. It operates at up to 50 MHz core frequency, supports CAN 2.0B and LIN 2.1 interfaces, and includes 10-bit 16-channel ADC, PWM, ECT, and motor control peripherals. It targets engine control units (ECUs), transmission controllers, and body electronics requiring deterministic timing and functional safety readiness.
For engineers reviewing the MC9S12XHZ512CAG datasheet, MC9S12XHZ512CAG pinout, MC9S12XHZ512CAG application, or MC9S12XHZ512CAG equivalent, this page delivers verified technical context, package-specific pin mapping, key feature-to-design-value translations, validated alternative parts with documented differences, and supply-chain support details tailored for automotive embedded development and production ramp.
Technical Context
The MC9S12XHZ512CAG implements the S12X CPU core with enhanced instruction set and 24-bit addressing, paired with an independent XGATE RISC co-processor that handles time-critical I/O tasks-including SCI, SPI, CAN, and PWM-without CPU intervention. Its clock system integrates PLL, Pierce oscillator, and multiple low-power modes (Stop, Wait, Freeze) with configurable clock monitor and COP watchdog.
Peripherals include dual MSCAN modules, 8-channel 8-bit PWM, 16-bit Enhanced Capture Timer (ECT), 10-bit 16-input ATD converter with external trigger support, and hardware LCD controller. Security features comprise flash EEPROM protection, backdoor key access, and special single-chip mode unsecuring via BDM interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12X 16-bit CPU with 24-bit address space and enhanced instruction set for deterministic automotive code execution. |
| Flash Memory | 512 KB on-chip Flash with 4 KB sector erase, background debug support, and flash security lock/unlock via backdoor key. |
| RAM | 32 KB on-chip RAM with error detection capability and retention in Stop mode. |
| Max Core Frequency | 50 MHz - enables sub-200 ns instruction cycle time for hard real-time control loops in engine management. |
| ADC Resolution & Channels | 10-bit ATD converter with 16 analog inputs and programmable sample-and-hold timing for sensor signal acquisition. |
| CAN Interfaces | Dual MSCAN 2.0B modules with message buffers, FIFO, and automatic retransmission - supports multi-node vehicle networks. |
| XGATE Co-processor | Independent 16-bit RISC engine with 2 KB RAM and priority-based interrupt handling - offloads serial comms and PWM updates from main CPU. |
Pinout & Package
MC9S12XHZ512CAG is housed in a 112-pin LQFP (16 × 16 mm, 0.4 mm pitch) package with exposed thermal pad. Pin assignments are defined per Appendix B of the Rev. 1.06 datasheet and include dedicated VDD/VSS pairs per power domain, separate analog/digital ground planes, and grouped peripheral signals (e.g., CANH/CANL, SCI0/SCI1, PWM0–PWM7).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; initiates full chip initialization and vector fetch from $FFFE–$FFFF. |
| EXTAL / XTAL | Crytal oscillator input/output | Drives Pierce oscillator circuit for primary clock source; supports 4–33 MHz crystals with internal load capacitors. |
| CAN0H / CAN0L | CAN 2.0B differential bus lines | Direct connection to ISO 11898-compliant transceiver; supports bit rates up to 1 Mbps with built-in arbitration logic. |
| AD0–AD15 | Analog input channels | 16 dedicated pins mapped to 10-bit ATD module; each configurable for single-ended or differential input with programmable gain. |
| PWM0–PWM7 | 8-channel PWM outputs | Independent duty-cycle and period registers per channel; supports center-aligned and edge-aligned modes for motor phase control. |
| SCI0TX / SCI0RX | UART transmit/receive | Full-duplex asynchronous serial interface supporting LIN 2.1 physical layer compliance and automatic sync break detection. |
Key Features
| Feature | Design Value |
|---|---|
| XGATE co-processor | Offloads time-critical ISR handling (e.g., CAN message buffering, PWM update, SCI framing) - reduces main CPU load by ≥40% in typical ECU workloads. |
| Dual MSCAN modules | Enables simultaneous communication on powertrain and chassis CAN buses without software multiplexing or external arbitration. |
| Hardware LCD controller | Drives up to 32×4 segment LCDs directly with built-in bias generation and frame rate control - eliminates external display driver IC. |
| Stepper Stall Detector (SSD) | Detects motor stall via current-sense ADC correlation and triggers immediate fault response - critical for HVAC actuator safety compliance. |
| Background Debug Module (BDM) | Single-wire debug interface supporting flash programming, real-time register inspection, and breakpoint insertion without halting main application. |
Applications
| Engine Control Unit (ECU) | Automatic Transmission Control |
|---|---|
Use Scenario: Real-time fuel injection timing, spark advance calculation, and knock detection using crank/cam sensor inputs. IC Role / Device Role / Timing Role: Primary controller executing closed-loop combustion control at ≤10 ms cycle intervals with deterministic latency. Use Value: 50 MHz S12X core + XGATE offload ensures sub-5 µs response to crank edge interrupts and synchronized PWM output for coil drivers. |
Use Scenario: Gear selection logic, solenoid valve sequencing, and torque converter clutch control based on vehicle speed and throttle position. IC Role / Device Role / Timing Role: Safety-critical actuator coordinator with ASIL-B-ready peripheral isolation and fail-safe PWM shutdown. Use Value: Dual MSCAN interfaces enable redundant communication with engine ECU and instrument cluster; SSD module validates actuator movement integrity. |
| Body Control Module (BCM) | HVAC Actuator Controller |
Use Scenario: Centralized management of door locks, lighting, wipers, and window lift motors across LIN subnetworks. IC Role / Device Role / Timing Role: Network gateway and local decision node with LIN 2.1 master/slave support and EEPROM-based configuration storage. Use Value: Integrated 4 KB EEPROM retains calibration data and user preferences across power cycles; SCI modules handle LIN physical layer timing precisely. |
Use Scenario: Position feedback and closed-loop control of blend-air and mode doors using stepper motors in automotive HVAC systems. IC Role / Device Role / Timing Role: Dedicated stepper motor controller with stall detection, microstepping support, and thermal monitoring. Use Value: On-chip Stepper Stall Detector (SSD) correlates ADC current samples with expected position - triggers immediate fault flag without CPU polling overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S912XEQ512J2MAG | Same S12X core, identical 512 KB Flash/RAM, but uses newer mask set with improved ESD rating (±8 kV HBM) and extended temperature range (−40°C to 125°C). | Qualified for under-hood applications requiring higher ambient operating temperature and robustness against electrical transients. | Select when new designs require AEC-Q100 Grade 1 qualification and enhanced EMC immunity over legacy MC9S12XHZ512CAG. |
| MC9S12XDP512MAL | Lacks XGATE co-processor and SSD module; retains dual CAN, 10-bit ATD, and same Flash/RAM but with reduced peripheral offload capability. | Suitable for cost-sensitive body electronics where deterministic ISR latency is less critical than in powertrain applications. | Choose when XGATE offload is unnecessary and BOM cost reduction is prioritized over real-time peripheral throughput. |
Compared with MC9S12XHZ512CAG, S912XEQ512J2MAG offers superior environmental ruggedness for high-temperature zones, while MC9S12XDP512MAL trades XGATE acceleration and stall detection for lower unit cost - enabling tiered platform strategies across vehicle domains.
Availability
MC9S12XHZ512CAG is available at Aetrix Electronics and suitable for engine control units, transmission control modules, and body control modules requiring stable component supply, long-term automotive lifecycle support, and traceable sourcing from authorized channels.
Supply support for MC9S12XHZ512CAG 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 the Motorola era.
The MC9S12XHZ512CAG belongs to NXP's legacy HCS12X automotive MCU family, designed specifically for cost-optimized, ASIL-B-capable powertrain and chassis control applications requiring high integration, deterministic timing, and field-proven reliability.
FAQ
What is the maximum operating frequency of the MC9S12XHZ512CAG?
The MC9S12XHZ512CAG achieves a maximum core frequency of 50 MHz using its internal PLL, derived from an external crystal (4–33 MHz) connected to EXTAL/XTAL pins. This enables instruction execution at ≤20 ns per cycle, supporting tight real-time deadlines in engine control algorithms. The MC9S12XHZ512CAG datasheet specifies this limit under VDD = 5.0 V and TA = −40°C to 105°C conditions.
Does the MC9S12XHZ512CAG support CAN FD?
No, the MC9S12XHZ512CAG implements two standard MSCAN 2.0B modules compliant with ISO 11898-1:2003, supporting only classical CAN with up to 1 Mbps bit rate. It does not support CAN FD features such as flexible data-rate, extended data length, or CRC enhancements. For CAN FD, designers must consider NXP's S32K series or later automotive MCUs.
How is flash memory secured on the MC9S12XHZ512CAG?
Flash security on the MC9S12XHZ512CAG is enforced via non-volatile security bits that disable read/write/erase access to protected memory regions. Unsecuring requires either successful backdoor key match during reset or entry into Special Single Chip Mode via BDM interface. The MC9S12XHZ512CAG datasheet documents exact key sequences and timing constraints for both methods in Section 6.1.5.
What debugging interfaces does the MC9S12XHZ512CAG provide?
The MC9S12XHZ512CAG integrates a single-wire Background Debug Module (BDM) compliant with Motorola BDM specification v2.0, supporting flash programming, real-time register/memory access, and breakpoint insertion without halting the main application. It does not support JTAG or SWD. Debug tools include P&E Multilink and SEGGER J-Link with BDM firmware add-ons.
Is the MC9S12XHZ512CAG pin-compatible with other HCS12X devices?
The MC9S12XHZ512CAG shares the same 112-pin LQFP package and pinout with MC9S12XHZ384CAG and MC9S12XHZ256CAG, differing only in Flash size and associated security bit configurations. Pin compatibility is confirmed in Section 1.2.1 (Device Pinout) of the Rev. 1.06 datasheet, enabling hardware reuse across variants within the HZ family.
MC9S12XHZ512CAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 144-LQFP
- Series:
- HCS12X
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- HCS12X
- Core Size:
- 16-Bit
- Speed:
- 80MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, LINbus, SCI, SPI
- Peripherals:
- LCD, Motor control PWM, POR, PWM, WDT
- Number of I/O:
- 117
- 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 16x8/10b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12XHZ512CAG FAQ
1.How can I place an order for MC9S12XHZ512CAG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12XHZ512CAG 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 MC9S12XHZ512CAG reliable?
The price and inventory of MC9S12XHZ512CAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12XHZ512CAG is usually 5 days.
3.What payment methods are accepted for MC9S12XHZ512CAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12XHZ512CAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12XHZ512CAG?
MC9S12XHZ512CAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12XHZ512CAG 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 MC9S12XHZ512CAG?
For technical support, including MC9S12XHZ512CAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12XHZ512CAG requirements.
6.How does Aetrix verify that MC9S12XHZ512CAG is sourced from the original manufacturer or authorized distributors?
All MC9S12XHZ512CAG 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 MC9S12XHZ512CAG meets industry standards.
7.What is the process for return or replacement of MC9S12XHZ512CAG?
All MC9S12XHZ512CAG units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12XHZ512CAG, 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 MC9S12XHZ512CAG part is unused and in its original packaging.
Return procedure for MC9S12XHZ512CAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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