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NXP Semiconductors MC9S12XEQ512CALR
- Part No.:
- MC9S12XEQ512CALR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
MC9S12XEQ512CALR.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,647
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Product details
Overview
MC9S12XEQ512CALR from NXP (formerly Freescale) is a 16-bit HCS12X microcontroller featuring a 512 KB on-chip flash memory, 32 KB RAM, and an XGATE co-processor for offloading real-time tasks. It operates at up to 50 MHz, supports CAN 2.0B, LIN, SPI, IIC, and multiple PWM/ECT channels, and targets automotive body control modules requiring ASIL-B functional safety support.
For engineers reviewing the MC9S12XEQ512CALR datasheet, MC9S12XEQ512CALR pinout, MC9S12XEQ512CALR application, or MC9S12XEQ512CALR equivalent, key selection criteria include its 112-pin LQFP package, integrated voltage regulator, dual CAN controllers with time-triggered capability, and S12X CPU core with enhanced interrupt latency handling.
Technical Context
The MC9S12XEQ512CALR implements the S12X CPU core with 24-bit addressing, supporting both native and legacy S12 instruction sets. Its XGATE module is a 16-bit RISC coprocessor with dedicated RAM and DMA, enabling deterministic response to time-critical peripherals like CAN, PWM, and ADC without CPU intervention.
It integrates dual MSCAN modules compliant with ISO 11898-1, a 12-bit 16-channel ADC with configurable sample-and-hold, and a flexible clock generation system including PLL, internal oscillator, and external crystal support - all configured via the CRG and OSC modules per Reference Manual Rev. 1.25.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12X 16-bit CPU with 24-bit address bus and XGATE RISC coprocessor for parallel peripheral handling |
| Flash Memory | 512 KB on-chip flash with EEPROM emulation, sector protection, and 100K write/erase cycles |
| RAM | 32 KB on-chip SRAM with parity checking for safety-critical data storage |
| Max Clock Frequency | 50 MHz system clock derived from PLL; enables ≤20 ns instruction cycle time for real-time control loops |
| CAN Interfaces | Dual independent MSCAN modules supporting CAN 2.0A/B, bit rates up to 1 Mbps, and time-triggered communication mode |
| ADC | 12-bit, 16-channel SAR ADC with 8 µs conversion time, configurable trigger sources, and hardware averaging |
| Package | 112-pin LQFP (16 × 16 mm, 0.4 mm pitch), RoHS-compliant, industrial temperature range (–40°C to +105°C) |
Pinout & Package
MC9S12XEQ512CALR uses a 112-pin LQFP package with exposed thermal pad. Pin functions are defined across 14 I/O ports (Ports A, B, C, D, E, F, H, J, K, L, M, P, R, S, T), each supporting configurable direction, pull-up/down, drive strength, and interrupt capability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply inputs | Separate analog, digital, and PLL power domains enable noise isolation and stable high-frequency operation |
| VSS, VSSA, VSSPLL | Ground returns | Dedicated analog/digital/PLL ground pins reduce coupling and improve ADC accuracy and PLL jitter performance |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; initiates cold start, watchdog timeout recovery, or BDM entry sequence |
| XTAL, EXTAL | Crystal oscillator terminals | Supports 4–32 MHz fundamental-mode crystals; used for precision clock source in CAN timing and calibration |
| CAN0TX, CAN0RX | CAN controller channel 0 interface | Differential transmit/receive signals routed to external transceiver; supports dominant/recessive bit arbitration and error frame detection |
| CAN1TX, CAN1RX | CAN controller channel 1 interface | Independent second CAN channel for gateway or redundancy applications; fully compatible with CAN0 signal timing and protocol stack |
| AD0[0–15] | Analog input channels | 16 single-ended or 8 differential analog inputs with programmable gain and reference selection (VREFH/VREFL) |
| PT0–PT7 | PWM output channels | Eight independent 8-bit PWM outputs with center-aligned/edge-aligned modes, dead-time insertion, and fault protection |
Key Features
| Feature | Design Value |
|---|---|
| XGATE co-processor | Offloads CAN message handling, ADC scanning, and PWM updates from main CPU - reduces worst-case interrupt latency by >60% |
| Dual MSCAN modules | Enables simultaneous communication on two CAN buses (e.g., powertrain + body networks) with independent filtering and mailbox management |
| Memory Protection Unit (MPU) | Configurable region-based access control for flash, RAM, and peripherals - supports ASIL-B compliance via code/data isolation |
| Background Debug Module (BDM) | Single-wire debug interface with full read/write memory access, breakpoint support, and non-intrusive real-time tracing |
| Voltage regulator (VREG) | On-chip 3.3 V regulator supplies internal logic and I/O; eliminates need for external LDO in cost-sensitive automotive modules |
Applications
| Body Control Module (BCM) | Door Module Controller |
|---|---|
Use Scenario: Centralized control of lighting, window lifts, mirrors, and door locks in modern vehicles. IC Role / Device Role / Timing Role: Primary MCU executing LIN slave protocols, PWM-driven LED dimming, and CAN-based diagnostics. Use Value: Dual CAN interfaces allow seamless integration into vehicle backbone network while XGATE handles LIN scheduling without CPU load. | Use Scenario: Localized control unit inside vehicle door managing motorized windows, anti-pinch sensors, and keyless entry RF interface. IC Role / Device Role / Timing Role: Real-time motor control MCU with precise PWM timing, ADC-based current sensing, and secure key exchange over LIN. Use Value: Integrated 12-bit ADC and hardware PWM dead-time insertion enable safe, responsive window motor control meeting ISO 13849 PLd requirements. |
| Roof Module Controller | Seat Position Memory Module |
Use Scenario: Control of sunroof actuation, ambient lighting, and rain sensor interface in roof console assemblies. IC Role / Device Role / Timing Role: Mixed-signal controller managing analog rain detection, brushed DC motor positioning, and CAN status reporting. Use Value: On-chip VREG and 32 KB RAM with parity support ensure reliable operation in thermally constrained roof environments without external regulators. | Use Scenario: Memory and position tracking for electric seat adjustment using potentiometer feedback and non-volatile storage. IC Role / Device Role / Timing Role: Data-logging MCU storing seat position profiles in protected flash sectors and restoring them via CAN command. Use Value: 512 KB flash with EEPROM emulation and MPU-protected sectors provide robust, wear-levelled storage for user preferences across 100K+ cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP100MALR | Same S12X core and pinout, but 1 MB flash, 64 KB RAM, and no VREG - requires external 3.3 V supply | Targeted at higher-end gateway ECUs needing larger code space and external power management | Select when flash headroom >512 KB is required and board layout accommodates external regulator |
| S912XEQ512J1MALR | NXP rebranded version with identical silicon, same 112-LQFP package, and identical electrical specs - differs only in part marking and qualification level (AEC-Q100 Grade 1 vs Grade 2) | Used in premium automotive platforms requiring extended temperature range (–40°C to +125°C) | Choose for applications demanding Grade 1 qualification; otherwise MC9S12XEQ512CALR meets standard automotive requirements |
Compared with MC9S12XEP100MALR, the MC9S12XEQ512CALR offers integrated voltage regulation and smaller memory footprint - simplifying BOM and PCB layout for mid-tier modules. Versus S912XEQ512J1MALR, it provides identical functionality at lower qualification cost, making it optimal for cost-sensitive body electronics.
Availability
MC9S12XEQ512CALR is available at Aetrix Electronics and suitable for automotive body control modules, door electronics, roof consoles, and seat memory systems requiring stable component supply, long-term lifecycle support, and AEC-Q100 qualified components.
Supply support for MC9S12XEQ512CALR 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 company specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with leadership in microcontrollers, radar, and secure edge processing.
The MC9S12XEQ512CALR belongs to the S12XE family - designed specifically for cost-optimized, functionally safe automotive body electronics where deterministic real-time response, dual CAN, and integrated power management are critical.
FAQ
What is the maximum operating frequency of the MC9S12XEQ512CALR?
The MC9S12XEQ512CALR achieves a maximum system clock frequency of 50 MHz using its on-chip PLL. This is derived from an external crystal (typically 8 MHz) multiplied by the PLL's 6.25× ratio, resulting in a 20 ns instruction cycle time - sufficient for fast closed-loop control in automotive actuators and sensor interfaces.
Does the MC9S12XEQ512CALR support CAN FD?
No, the MC9S12XEQ512CALR does not support CAN FD. It integrates two legacy MSCAN modules compliant only with ISO 11898-1 (Classical CAN 2.0A/B), supporting bit rates up to 1 Mbps. CAN FD capability requires newer S32K or MagnaChip-based controllers outside the S12XE family.
Is there an internal voltage regulator in the MC9S12XEQ512CALR?
Yes, the MC9S12XEQ512CALR includes an integrated 3.3 V voltage regulator (VREG) that powers internal logic and I/O circuits. This eliminates the need for an external LDO in many automotive body applications, reducing BOM count and PCB area - confirmed in Chapter 23 of the S12XE Family Reference Manual Rev. 1.25.
How many ADC channels does the MC9S12XEQ512CALR have, and what is their resolution?
The MC9S12XEQ512CALR features a single 12-bit successive approximation register (SAR) ADC with 16 input channels. It supports both single-ended and differential configurations, programmable sample-and-hold timing, and hardware averaging - delivering effective resolution up to 13.5 bits under low-noise conditions per Appendix A electrical characteristics.
What debug interface does the MC9S12XEQ512CALR use, and is JTAG supported?
The MC9S12XEQ512CALR uses the Background Debug Module (BDM) interface - a single-wire, SWD-compatible protocol implemented on the BKGD pin. JTAG is not supported; BDM provides full memory access, breakpoint setting, and real-time register inspection without halting CPU execution during trace operations.
MC9S12XEQ512CALR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 112-LQFP
- Series:
- HCS12X
- Packaging:
- Tape & Reel (TR)
- 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:
- 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 16x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12XEQ512CALR FAQ
1.How can I place an order for MC9S12XEQ512CALR through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12XEQ512CALR 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 MC9S12XEQ512CALR reliable?
The price and inventory of MC9S12XEQ512CALR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12XEQ512CALR is usually 5 days.
3.What payment methods are accepted for MC9S12XEQ512CALR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12XEQ512CALR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12XEQ512CALR?
MC9S12XEQ512CALR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12XEQ512CALR 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 MC9S12XEQ512CALR?
For technical support, including MC9S12XEQ512CALR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12XEQ512CALR requirements.
6.How does Aetrix verify that MC9S12XEQ512CALR is sourced from the original manufacturer or authorized distributors?
All MC9S12XEQ512CALR 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 MC9S12XEQ512CALR meets industry standards.
7.What is the process for return or replacement of MC9S12XEQ512CALR?
All MC9S12XEQ512CALR units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12XEQ512CALR, 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 MC9S12XEQ512CALR part is unused and in its original packaging.
Return procedure for MC9S12XEQ512CALR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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