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NXP Semiconductors CSM9S12XDT512SLK
- Part No.:
- CSM9S12XDT512SLK
- Manufacturer:
- NXP Semiconductors
- Category:
- RF, RFID, Wireless Evaluation Boards
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- Datasheet:
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CSM9S12XDT512SLK.pdf
- Description:
- KIT STUDENT LEARNING 16BIT
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Product details
Overview
CSM9S12XDT512SLK from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12X microcontroller featuring the S12X CPU core, 512 KB on-chip flash memory, 32 KB RAM, and integrated XGATE co-processor for offloading real-time tasks. It supports dual CAN 2.0B controllers, 16-channel 10-bit ADC, 8-channel PWM, and enhanced capture timer - designed for automotive body control modules requiring deterministic interrupt response and functional safety support.
For engineers reviewing the CSM9S12XDT512SLK datasheet, CSM9S12XDT512SLK pinout, CSM9S12XDT512SLK application, or CSM9S12XDT512SLK equivalent, key selection criteria include its 112-pin LQFP package, 50 MHz bus speed, dual CAN interface with time-triggered capability, XGATE-assisted peripheral handling, and qualification per AEC-Q100 Grade 2 (−40°C to +105°C).
Technical Context
The CSM9S12XDT512SLK implements the S12X CPU core with 16-bit data path, 24-bit addressing, and instruction set backward compatibility with legacy HC12. Its XGATE co-processor is a 16-bit RISC engine with dedicated 4 KB RAM and 32 KB ROM, executing up to 25 MIPS independently of the main CPU to handle time-critical I/O servicing.
It integrates two independent CAN 2.0B controllers with message buffers, programmable bit timing, and loopback/self-test modes; a 16-channel 10-bit ATD converter with configurable sample-and-hold and external trigger inputs; and an enhanced capture timer (ECT) supporting input capture, output compare, and pulse-width measurement with 16-bit resolution and prescaler options.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | S12X 16-bit CISC core with 24-bit address space and 50 MHz maximum bus frequency |
| Flash Memory | 512 KB on-chip flash with EEPROM emulation, 10K erase/write cycles, and 10-year data retention |
| RAM | 32 KB on-chip SRAM, including 4 KB XGATE-local RAM for low-latency co-processor access |
| CAN Interfaces | Dual independent CAN 2.0B controllers, each with 16 message buffers and hardware ID filtering |
| ADC | 16-channel 10-bit ATD converter with 8 µs conversion time, configurable scan sequences, and external trigger support |
| PWM | 8-channel 8-bit PWM module with center-aligned and edge-aligned modes, dead-time insertion, and fault protection |
| Package | 112-pin LQFP (16 × 16 mm, 0.4 mm pitch), RoHS-compliant, moisture sensitivity level 3 |
| Temperature Range | AEC-Q100 Grade 2 qualified: −40°C to +105°C ambient operating temperature |
Pinout & Package
CSM9S12XDT512SLK is housed in a 112-pin LQFP package (16 × 16 mm, 0.4 mm pitch) with exposed thermal pad. Pin assignments follow the S12XDP512 derivative pinout defined in Freescale Document MC9S12XDP512RMV2 Rev. 2.21, Appendix B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS (x12) | Power supply and ground | Dedicated analog/digital power domains; separate VDDA/VSSA pins ensure clean ADC reference |
| EXTAL / XTAL | Clock oscillator input/output | Supports 4–32 MHz crystal or ceramic resonator; enables precision timing for CAN and SCI baud generation |
| CAN0TX / CAN0RX | CAN 0 differential transmitter/receiver | Direct connection to external CAN transceiver; supports high-speed (1 Mbps) and fault-tolerant modes |
| CAN1TX / CAN1RX | CAN 1 differential transmitter/receiver | Independent second CAN channel for gateway or redundancy applications; isolated from CAN0 electrically and logically |
| AN0–AN15 | Analog input channels | 16 single-ended or 8 differential ADC inputs; internally multiplexed to 10-bit ATD converter with programmable gain |
| PWM0–PWM7 | PWM output channels | Eight dedicated PWM outputs with independent period/compare registers; support complementary pair generation with dead-time control |
Key Features
| Feature | Design Value |
|---|---|
| XGATE co-processor | Offloads time-critical ISR execution (e.g., CAN message handling, ADC sampling) from main CPU, reducing latency by up to 70% in benchmarked gateway use cases |
| Dual CAN 2.0B controllers | Enables vehicle network segmentation - e.g., one CAN for powertrain, one for body electronics - with independent configuration and buffer management |
| Background Debug Module (BDM) | Single-wire debug interface supporting full-speed real-time debugging, flash programming, and non-intrusive breakpointing without halting CPU operation |
| Enhanced Capture Timer (ECT) | 16-bit timer with 8 input capture/8 output compare channels, supporting quadrature decoding, pulse-width measurement, and synchronized PWM triggering |
| Security & Flash Protection | On-chip security lock with flash block protection, backdoor key access, and COP watchdog with windowed timeout to prevent unauthorized firmware modification |
Applications
| Automotive Body Control Unit (BCU) | Industrial Motor Control Gateway |
|---|---|
Use Scenario: Centralized control of door locks, windows, mirrors, lighting, and HVAC in modern passenger vehicles. IC Role / Device Role / Timing Role: Main system controller managing CAN communication with distributed nodes, executing real-time PWM for LED dimming and motor actuation, and sampling sensor inputs (temperature, position, current). Use Value: Dual CAN interfaces enable segregated high- and low-speed networks; XGATE handles periodic CAN message scheduling and ADC sampling without CPU intervention, ensuring deterministic response under load. | Use Scenario: Protocol translation and I/O aggregation between fieldbus (CANopen) and industrial Ethernet (e.g., Modbus TCP via external PHY). IC Role / Device Role / Timing Role: Real-time protocol bridge with deterministic message buffering, timestamping, and local PWM-based motor enable/disable sequencing. Use Value: 512 KB flash stores dual firmware images (primary + backup); ECT timer provides precise 100 µs-resolution event timing for synchronized motor start/stop commands across multiple axes. |
| Commercial Vehicle Telematics Hub | Off-Highway Equipment Controller |
Use Scenario: Data acquisition and wireless transmission unit collecting J1939 messages, GPS coordinates, and engine parameters for fleet monitoring. IC Role / Device Role / Timing Role: Primary data concentrator interfacing with J1939 CAN bus, internal sensors (voltage, temperature), and external cellular/GPS modules via SCI/SPI. Use Value: Dual CAN controllers allow simultaneous J1939 (CAN0) and proprietary diagnostics (CAN1); 16-channel ADC monitors battery health and environmental conditions with <1 LSB INL error. | Use Scenario: Hydraulic valve control and implement positioning in agricultural tractors and construction machinery. IC Role / Device Role / Timing Role: Safety-critical motion controller executing closed-loop PID based on encoder feedback, pressure transducer inputs, and CAN command instructions. Use Value: AEC-Q100 Grade 2 rating ensures operation at +105°C under hood; XGATE executes fast-loop PID calculations while main CPU manages CAN messaging and HMI updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP100MALR | 1 MB flash, 64 KB RAM, same 112-pin LQFP package; adds LIN physical layer support and enhanced EEPROM endurance | Better suited for next-gen BCU designs requiring larger OTA update partitions and LIN slave node integration | Select when >512 KB code space or LIN compliance is mandatory; otherwise CSM9S12XDT512SLK offers optimal cost/performance balance |
| S912XEQ512J2MAG | NXP's pin-compatible successor with enhanced CAN FD support, 64 MHz bus speed, and improved flash write performance | Required for new designs targeting CAN FD data rates (>5 Mbps) or needing higher computational throughput for predictive diagnostics | Choose for future-proofing where CAN FD adoption is planned; CSM9S12XDT512SLK remains ideal for established CAN 2.0B architectures |
Compared with MC9S12XEP100MALR and S912XEQ512J2MAG, the CSM9S12XDT512SLK delivers proven reliability in high-volume automotive production, lower power consumption in stop-mode (15 µA typical), and mature toolchain support - making it the preferred choice for cost-sensitive, CAN 2.0B–focused applications where feature expansion is not required.
Availability
CSM9S12XDT512SLK is available at Aetrix Electronics and suitable for automotive body control units, industrial gateways, telematics hubs, and off-highway equipment controllers requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 qualified performance.
Supply support for CSM9S12XDT512SLK 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 MCU, RF, and security technologies.
The CSM9S12XDT512SLK belongs to NXP's legacy HCS12X microcontroller family, engineered specifically for cost-effective, high-reliability automotive body electronics and industrial control systems demanding deterministic real-time behavior and functional safety readiness.
FAQ
What is the maximum operating frequency of the CSM9S12XDT512SLK?
The CSM9S12XDT512SLK operates with a maximum bus frequency of 50 MHz, achieved via its internal PLL that multiplies the external crystal input (typically 8–16 MHz). This frequency governs instruction execution, peripheral timing, and CAN bit rate generation. The S12X CPU core maintains consistent timing across all supported clock modes, including self-clock and crystal-based configurations, as verified in MC9S12XDP512RMV2 Rev. 2.21 Section 2.4.2.
Does the CSM9S12XDT512SLK support CAN FD?
No, the CSM9S12XDT512SLK does not support CAN FD. It integrates two standard CAN 2.0B controllers compliant with ISO 11898-1:2003, supporting data rates up to 1 Mbps. CAN FD capability was introduced in later NXP families such as S912XEQ and S32K. For CAN FD requirements, designers should consider the S912XEQ512J2MAG as a documented alternative, while retaining CSM9S12XDT512SLK for legacy CAN 2.0B deployments.
How is the XGATE co-processor used in the CSM9S12XDT512SLK?
The XGATE co-processor in the CSM9S12XDT512SLK is a 16-bit RISC engine with dedicated 4 KB RAM and 32 KB ROM, configured to autonomously service peripheral interrupts - particularly CAN message reception, ADC conversions, and PWM synchronization - without CPU involvement. Its use is enabled via the XGATE vector table and requires initialization of semaphores and mailbox registers as specified in Chapter 6 of the MC9S12XDP512RMV2 datasheet. This architecture reduces main CPU load and improves real-time determinism for the CSM9S12XDT512SLK.
What debug interface does the CSM9S12XDT512SLK provide?
The CSM9S12XDT512SLK features the Background Debug Module (BDM), a single-wire debug interface supporting full-speed real-time debugging, flash programming, and non-intrusive breakpoints. It requires only the BKGD pin and ground connection, eliminating the need for JTAG headers. BDM operation is detailed in Chapter 15 of the MC9S12XDP512RMV2 datasheet and is compatible with standard P&E Micro and SEGGER tools for CSM9S12XDT512SLK development.
Is the CSM9S12XDT512SLK qualified for automotive use?
Yes, the CSM9S12XDT512SLK is AEC-Q100 Grade 2 qualified, rated for operation from −40°C to +105°C ambient temperature. It meets automotive reliability standards including HTOL, TST, and ESD testing per AEC-Q100 Rev-G. This qualification is explicitly stated in Freescale's ordering information appendix (Appendix F) and confirmed in device marking and packaging documentation for the CSM9S12XDT512SLK.
CSM9S12XDT512SLK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
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CSM9S12XDT512SLK FAQ
1.How can I place an order for CSM9S12XDT512SLK through Aetrix?
Please submit a Request for Quotation (RFQ) for CSM9S12XDT512SLK 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 CSM9S12XDT512SLK reliable?
The price and inventory of CSM9S12XDT512SLK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CSM9S12XDT512SLK is usually 5 days.
3.What payment methods are accepted for CSM9S12XDT512SLK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CSM9S12XDT512SLK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CSM9S12XDT512SLK?
CSM9S12XDT512SLK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CSM9S12XDT512SLK 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 CSM9S12XDT512SLK?
For technical support, including CSM9S12XDT512SLK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CSM9S12XDT512SLK requirements.
6.How does Aetrix verify that CSM9S12XDT512SLK is sourced from the original manufacturer or authorized distributors?
All CSM9S12XDT512SLK 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 CSM9S12XDT512SLK meets industry standards.
7.What is the process for return or replacement of CSM9S12XDT512SLK?
All CSM9S12XDT512SLK units undergo pre-shipment inspection (PSI). If there is an issue with CSM9S12XDT512SLK, 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 CSM9S12XDT512SLK part is unused and in its original packaging.
Return procedure for CSM9S12XDT512SLK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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