Overview
The MC9S12XDT256VAL is a 16-bit microcontroller from NXP USA Inc., part of the MC9S12XD family. This microcontroller is designed for automotive and industrial applications, offering a balance of performance, power efficiency, and feature richness. It is based on the enhanced S12 core, providing upward compatibility with the existing MC9S12 instruction set while introducing significant performance enhancements.
The MC9S12XDT256VAL is particularly suited for applications requiring robust processing capabilities, low power consumption, and a wide range of peripherals. It features the XGATE module, which offloads the CPU by handling high-speed data processing and transfer between various modules, thereby enhancing overall system performance.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | NXP USA Inc. |
| Part Number | MC9S12XDT256VAL |
| Package | 112-LQFP |
| Number of I/Os | 91 |
| Supply Voltage | 2.35V ~ 5.5V |
| Program Memory Size | 256KB (256K x 8) |
| RAM Size | 32, 16, and 12-Kbyte options available |
| EEPROM Size | 4 and 2-Kbyte options available |
| Clock Speed | Up to 80 MHz |
| Peripherals | LVD, POR, PWM, WDT, ADC, PIT, CRG, etc. |
| RoHS Status | ROHS3 Compliant |
Key Features
- HCS12X Core: 16-bit HCS12X CPU with enhanced indexed addressing and instruction set, upward compatible with MC9S12 instruction set.
- XGATE Module: A parallel processing module that offloads the CPU by providing high-speed data processing and transfer between Flash EEPROM, RAM, peripheral modules, and I/O ports.
- Memory: 256KB Flash EEPROM, 4 and 2-Kbyte EEPROM, and 32, 16, and 12-Kbyte RAM options.
- Peripherals: Includes LVD (Low Voltage Detector), POR (Power-On Reset), PWM (Pulse Width Modulation), WDT (Watchdog Timer), ADC (Analog-to-Digital Converter), PIT (Periodic Interrupt Timer), and CRG (Clock and Reset Generator).
- Interrupt and Debug Features: Interrupt controller, debug module to monitor HCS12X CPU and XGATE bus activity, and background debug mode (BDM).
- Power Management: Low noise/low power Pierce oscillator, fast wake-up from stop mode, and real-time interrupt.
Applications
The MC9S12XDT256VAL is targeted for various applications, particularly in the automotive and industrial sectors. It is suitable for:
- Automotive Multiplexing: Ideal for body control modules, engine control units, and other automotive applications requiring robust communication and processing capabilities.
- Industrial Control Systems: Used in industrial automation, motor control, and other applications that require high reliability and performance.
- Embedded Systems: Suitable for a wide range of embedded systems that need a balance of processing power, low power consumption, and rich peripheral sets.
Q & A
- What is the core architecture of the MC9S12XDT256VAL?
The MC9S12XDT256VAL is based on the enhanced S12 core, which is a 16-bit HCS12X CPU.
- What is the maximum clock speed of the MC9S12XDT256VAL?
The maximum clock speed is up to 80 MHz.
- What type of memory does the MC9S12XDT256VAL have?
The microcontroller features 256KB Flash EEPROM, 4 and 2-Kbyte EEPROM, and 32, 16, and 12-Kbyte RAM options.
- What is the XGATE module and its function?
The XGATE module is a parallel processing module that offloads the CPU by providing high-speed data processing and transfer between various modules.
- What are the key peripherals available on the MC9S12XDT256VAL?
The key peripherals include LVD, POR, PWM, WDT, ADC, PIT, and CRG.
- Is the MC9S12XDT256VAL RoHS compliant?
Yes, the MC9S12XDT256VAL is ROHS3 compliant.
- What are the typical applications of the MC9S12XDT256VAL?
It is typically used in automotive multiplexing, industrial control systems, and other embedded systems.
- What is the package type of the MC9S12XDT256VAL?
The package type is 112-LQFP.
- What is the supply voltage range for the MC9S12XDT256VAL?
The supply voltage range is 2.35V ~ 5.5V.
- Does the MC9S12XDT256VAL support debug features?
Yes, it supports background debug mode (BDM) and a debug module to monitor HCS12X CPU and XGATE bus activity.
