AT80C51RA2-SLSUL

Product Overview

Category: Microcontroller

Use: The AT80C51RA2-SLSUL is a microcontroller designed for embedded systems and applications that require high-performance computing capabilities. It is commonly used in various electronic devices such as consumer electronics, industrial automation, automotive systems, and communication devices.

Characteristics: - High-performance computing capabilities - Low power consumption - Integrated peripherals for enhanced functionality - Robust and reliable operation - Flexible and versatile programming options

Package: The AT80C51RA2-SLSUL is available in a small outline package (SOP) which ensures easy integration into circuit boards and compact designs.

Essence: This microcontroller is based on the 8051 architecture, which has been widely adopted in the industry due to its simplicity, versatility, and compatibility with a wide range of software development tools.

Packaging/Quantity: The AT80C51RA2-SLSUL is typically packaged in reels or tubes, with quantities varying depending on the manufacturer's specifications and customer requirements.

Specifications

• CPU Clock Speed: Up to 40 MHz
• Flash Memory: 64 KB
• RAM: 2 KB
• Operating Voltage: 2.7V to 5.5V
• Number of I/O Pins: 32
• Communication Interfaces: UART, SPI, I2C
• Timers/Counters: 3
• Analog-to-Digital Converter (ADC): 8 channels, 10-bit resolution
• PWM Channels: 4
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT80C51RA2-SLSUL microcontroller has a total of 40 pins, each serving a specific purpose. Here is a detailed pin configuration:

1. VCC: Power supply voltage
2. GND: Ground reference
3. P0.0 - P0.7: General-purpose I/O pins
4. P1.0 - P1.7: General-purpose I/O pins
5. P2.0 - P2.7: General-purpose I/O pins
6. P3.0 - P3.7: General-purpose I/O pins
7. RST: Reset pin for system initialization
8. XTAL1: Crystal oscillator input
9. XTAL2: Crystal oscillator output
10. EA/VPP: External Access/Programming Enable
11. ALE/PROG: Address Latch Enable/Program pulse
12. PSEN: Program Store Enable
13. RD: Read control signal
14. WR: Write control signal
15. INT0: External interrupt 0 input
16. INT1: External interrupt 1 input
17. T0: Timer 0 external input
18. T1: Timer 1 external input
19. TXD: UART transmit data
20. RXD: UART receive data

... (continued)

Functional Features

The AT80C51RA2-SLSUL microcontroller offers several functional features that enhance its performance and usability:

1. High-Speed Computing: With a CPU clock speed of up to 40 MHz, the microcontroller can execute instructions quickly, enabling efficient processing of complex algorithms and real-time tasks.

2. Integrated Peripherals: The microcontroller includes various integrated peripherals such as UART, SPI, I2C, timers/counters, PWM channels, and an ADC. These peripherals provide additional functionality and enable seamless communication with other devices.

3. Low Power Consumption: The AT80C51RA2-SLSUL is designed to operate efficiently in low-power modes, making it suitable for battery-powered applications or energy-conscious designs.

4. Robust and Reliable Operation: The microcontroller is built with robust components and undergoes rigorous testing to ensure reliable operation even in harsh environments.

5. Flexible Programming Options: The AT80C51RA2-SLSUL supports various programming languages and development tools, allowing developers to choose the most suitable environment for their application.

Advantages and Disadvantages

Advantages: - High-performance computing capabilities - Integrated peripherals for enhanced functionality - Low power consumption - Wide range of software development tools available - Compact package size for easy integration

Disadvantages: - Limited RAM capacity (2 KB) - Relatively small number of I/O pins (32)

Working Principles

The AT80C51RA2-SLSUL microcontroller operates based on the 8051 architecture. It follows a Von Neumann architecture, where program instructions and data are stored in the same memory space. The CPU fetches instructions from the program memory, executes them, and stores the results in the data memory.

The microcontroller uses a Harvard architecture for external data memory access, allowing simultaneous instruction fetch and data read/write operations. It employs a