MC9S12A256CPVE

Product Overview

• Category: Microcontroller
• Use: Embedded systems, automotive applications
• Characteristics:
  • High-performance 16-bit microcontroller
  • Integrated peripherals for versatile applications
  • Automotive-grade quality and reliability
• Package: 112-pin LQFP (Low Profile Quad Flat Package)
• Essence: Advanced microcontroller for automotive embedded systems
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Architecture: 16-bit HCS12 core
• Clock Speed: Up to 25 MHz
• Flash Memory: 256 KB
• RAM: 12 KB
• EEPROM: 2 KB
• Operating Voltage: 2.35V to 5.5V
• Operating Temperature: -40°C to +125°C
• Number of I/O Pins: 84
• Communication Interfaces: CAN, SPI, SCI, I2C
• Analog-to-Digital Converter (ADC): 10-bit, 8 channels
• Timers: 8-bit and 16-bit timers with PWM capability
• Interrupts: 56 interrupt sources

Detailed Pin Configuration

The MC9S12A256CPVE microcontroller has a total of 112 pins. The pin configuration is as follows:

• Pins 1-4: VDD (Power Supply)
• Pins 5-8: Ground (GND)
• Pins 9-16: General-purpose I/O (GPIO) pins
• Pins 17-24: Communication interface pins (CAN, SPI, SCI, I2C)
• Pins 25-32: Analog input pins (ADC)
• Pins 33-48: Timer and PWM pins
• Pins 49-56: Interrupt pins
• Pins 57-112: Reserved for other functions

Functional Features

• High-performance 16-bit HCS12 core for efficient processing
• Integrated peripherals for versatile applications in automotive systems
• Robust communication interfaces (CAN, SPI, SCI, I2C) for seamless connectivity
• Analog-to-Digital Converter (ADC) for precise analog signal measurements
• Timers with PWM capability for accurate timing and control
• Extensive interrupt capabilities for real-time event handling

Advantages and Disadvantages

Advantages: - High-performance microcontroller suitable for demanding automotive applications - Wide operating voltage range allows flexibility in power supply - Integrated peripherals reduce the need for external components - Automotive-grade quality ensures reliability in harsh environments

Disadvantages: - Limited RAM and Flash memory compared to some other microcontrollers in the market - Higher cost compared to lower-end microcontrollers

Working Principles

The MC9S12A256CPVE microcontroller operates based on the 16-bit HCS12 core architecture. It executes instructions stored in its Flash memory and interacts with various peripherals to perform desired tasks. The microcontroller communicates with external devices through its communication interfaces such as CAN, SPI, SCI, and I2C. It also incorporates an ADC for analog signal conversion and timers for precise timing and control. The microcontroller's working principles revolve around efficient data processing, peripheral interaction, and real-time event handling.

Detailed Application Field Plans

The MC9S12A256CPVE microcontroller finds extensive use in automotive applications, including but not limited to:

1. Engine Control Units (ECUs)
2. Body Control Modules (BCMs)
3. Anti-lock Braking Systems (ABS)
4. Airbag Control Units (ACUs)
5. Infotainment Systems
6. Climate Control Systems
7. Instrument Clusters

These applications benefit from the microcontroller's high-performance processing, integrated peripherals, and automotive-grade reliability.

Detailed and Complete Alternative Models

1. MC9S12A128CPVE: Similar to MC9S12A256CPVE but with 128 KB Flash memory instead of 256 KB.
2. MC9S12A64CPVE: Similar to MC9S12A256CPVE but with 64 KB Flash memory instead of 256 KB.
3. MC9S12A32CPVE: Similar to MC9S12A256CPVE but with 32 KB Flash memory instead of 256 KB.

These alternative models provide options with varying memory capacities to suit different application requirements.

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