Overview
The MC9S12XDT256CAAR is a 16-bit microcontroller from NXP USA Inc., part of the S12XD family. This microcontroller is designed to offer the performance of a 32-bit MCU while maintaining the efficiencies and advantages of a 16-bit architecture. It is particularly targeted for automotive multiplexing and mid-range body applications, requiring flash memory sizes ranging from 64 KB to 512 KB.
The MC9S12XDT256CAAR features a high-performance HCS12 CPU core, integrated with various peripherals and network modules, making it suitable for complex automotive and industrial control systems.
Key Specifications
| Specification | Details |
|---|---|
| Microcontroller Type | 16-bit HCS12 CISC |
| Flash Memory | 256 KB |
| RAM | 12 KB |
| EEPROM | 4 KB |
| Package Type | 80-QFP (14x14 mm) |
| Operating Frequency | Up to 25 MHz |
| Voltage Range | 5V |
| Temperature Range | -40°C to +125°C |
| Network Modules | Two msCAN modules implementing CAN 2.0 A/B protocol |
| Analog-to-Digital Converter (ADC) | 10-bit, 8-channel |
| Pulse-Width Modulation (PWM) | 8-channel, 8-bit or 4-channel, 16-bit |
| Serial Communication Interfaces | SCI, SPI, I2C |
Key Features
- High-Performance CPU Core: The MC9S12XDT256CAAR features a 16-bit HCS12 CPU core with a bus operation frequency of up to 25 MHz, providing a minimum instruction cycle time of 40 ns.
- Integrated Peripherals: Includes multiple serial communication interfaces (SCI, SPI, I2C), two msCAN modules, and a 10-bit analog-to-digital converter (ADC) with 8 channels.
- Network Modules: Supports CAN 2.0 A/B protocol with five receive buffers and three transmit buffers per module, enabling efficient communications between different network buses.
- Enhanced Capture Timer: An 8-channel, 16-bit timer with input capture, output compare, and pulse accumulator functions.
- Pulse-Width Modulation (PWM): Offers 8-channel, 8-bit or 4-channel, 16-bit PWM for motor control, battery charging, and other digital-to-analog functions.
- Low Power Consumption: Designed for low power consumption, making it suitable for battery-powered and energy-efficient applications.
- On-Chip Debug Interface: Includes a dedicated serial debug interface for real-time in-circuit emulation and debug without the need for expensive emulators.
Applications
- Automotive Multiplexing: Ideal for automotive body control modules, engine control units, and other automotive applications requiring robust communication and control.
- Industrial Control: Suitable for industrial automation, process control, and other industrial applications that require high performance and reliability.
- Embedded Systems: Can be used in various embedded systems that need a balance of performance, power efficiency, and peripheral integration.
Q & A
- What is the primary application area of the MC9S12XDT256CAAR microcontroller?
The MC9S12XDT256CAAR is primarily targeted for automotive multiplexing and mid-range body applications, as well as industrial control systems.
- What is the flash memory size of the MC9S12XDT256CAAR?
The MC9S12XDT256CAAR has 256 KB of flash memory.
- What type of CPU core does the MC9S12XDT256CAAR use?
The MC9S12XDT256CAAR uses a 16-bit HCS12 CISC CPU core.
- What are the key network modules integrated into the MC9S12XDT256CAAR?
The microcontroller includes two msCAN modules implementing the CAN 2.0 A/B protocol.
- What is the operating frequency of the MC9S12XDT256CAAR?
The operating frequency of the MC9S12XDT256CAAR is up to 25 MHz.
- What is the temperature range of the MC9S12XDT256CAAR?
The temperature range is -40°C to +125°C.
- Does the MC9S12XDT256CAAR support on-chip debugging?
Yes, it includes a dedicated serial debug interface for real-time in-circuit emulation and debug.
- What types of serial communication interfaces are available on the MC9S12XDT256CAAR?
The microcontroller supports SCI, SPI, and I2C serial communication interfaces.
- What is the package type of the MC9S12XDT256CAAR?
The package type is 80-QFP (14x14 mm).
- Is the MC9S12XDT256CAAR suitable for low-power applications?
Yes, it is designed for low power consumption, making it suitable for battery-powered and energy-efficient applications.
