AT89C51RB2-RLTUL

Product Overview

Category

The AT89C51RB2-RLTUL belongs to the category of microcontrollers.

Use

This microcontroller is commonly used in various electronic applications that require embedded control systems.

Characteristics

• High-performance 8-bit microcontroller
• Low-power consumption
• Enhanced UART, SPI, and I²C serial interfaces
• Flash memory for program storage
• On-chip RAM for data storage
• Multiple timers/counters for precise timing operations
• Wide operating voltage range
• Robust and reliable design

Package

The AT89C51RB2-RLTUL is available in a compact and industry-standard 44-pin plastic quad flat package (PQFP).

Essence

The essence of this microcontroller lies in its ability to provide efficient and reliable control capabilities for a wide range of electronic devices and systems.

Packaging/Quantity

The AT89C51RB2-RLTUL is typically packaged in reels or tubes, with each reel containing a quantity of 250 units.

Specifications

• Architecture: 8-bit
• CPU Speed: Up to 40 MHz
• Program Memory Size: 64 KB
• Data Memory Size: 2 KB
• Number of I/O Pins: 32
• Operating Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Communication Interfaces: UART, SPI, I²C
• Timers/Counters: 3x 16-bit, 1x 8-bit
• ADC Channels: 8
• PWM Channels: 4
• Interrupt Sources: External and Internal

Detailed Pin Configuration

The AT89C51RB2-RLTUL microcontroller has a total of 44 pins. The pin configuration is as follows:

1. P0.0
2. P0.1
3. P0.2
4. P0.3
5. P0.4
6. P0.5
7. P0.6
8. P0.7
9. VSS
10. XTAL1
11. XTAL2
12. RST
13. P1.0
14. P1.1
15. P1.2
16. P1.3
17. P1.4
18. P1.5
19. P1.6
20. P1.7
21. VCC
22. ALE/PROG
23. PSEN
24. P2.0
25. P2.1
26. P2.2
27. P2.3
28. P2.4
29. P2.5
30. P2.6
31. P2.7
32. EA/VPP
33. ALE
34. P3.0
35. P3.1
36. P3.2
37. P3.3
38. P3.4
39. P3.5
40. P3.6
41. P3.7
42. VCC
43. GND
44. AVCC

Functional Features

The AT89C51RB2-RLTUL microcontroller offers the following functional features:

1. High-performance CPU for efficient data processing.
2. Flash memory for storing program code.
3. On-chip RAM for temporary data storage.
4. Multiple communication interfaces (UART, SPI, I²C) for seamless connectivity.
5. Timers and counters for precise timing operations.
6. Analog-to-Digital Converter (ADC) for analog signal processing.
7. Pulse Width Modulation (PWM) channels for generating variable output signals.
8. Interrupt capability for handling external and internal events.
9. Low-power consumption for energy-efficient operation.

Advantages and Disadvantages

Advantages

• High-performance and reliable microcontroller.
• Wide operating voltage range allows flexibility in various applications.
• Enhanced serial interfaces enable seamless communication with other devices.
• Ample program and data memory for complex applications.
• Multiple timers/counters provide precise timing control.
• Robust design ensures long-term reliability.

Disadvantages

• Limited number of I/O pins may restrict the connectivity options in some applications.
• Lack of built-in peripherals, such as USB or Ethernet, may require additional components for certain applications.

Working Principles

The AT89C51RB2-RLTUL microcontroller operates based on the principles of embedded control systems. It executes instructions stored in its flash memory to perform specific tasks. The CPU fetches instructions from memory, decodes them, and executes the corresponding operations. Input/output operations are facilitated through the I/O pins, allowing the