AT87C51RB2-SLRUM

Product Overview

• Category: Microcontroller
• Use: Embedded systems, control applications
• Characteristics: High-performance, low-power, 8-bit microcontroller
• Package: 40-pin PDIP (Plastic Dual In-line Package)
• Essence: Central processing unit for controlling electronic devices
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Architecture: 8-bit
• CPU Speed: 33 MHz
• Program Memory Size: 64 KB
• RAM Size: 2 KB
• Data EEPROM Size: 256 bytes
• I/O Pins: 32
• Timers/Counters: 3
• Communication Interfaces: UART, SPI, I2C
• Operating Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT87C51RB2-SLRUM microcontroller has a total of 40 pins. The pin configuration is as follows:

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

Functional Features

• High-performance 8-bit CPU with a wide range of instructions
• Low-power consumption for energy-efficient applications
• On-chip Flash memory for program storage
• Built-in RAM and data EEPROM for data storage
• Multiple communication interfaces for connectivity options
• Timers/counters for precise timing and event counting
• Interrupt capability for handling external events
• GPIO pins for interfacing with external devices
• Power-saving modes for efficient power management

Advantages and Disadvantages

Advantages: - High-performance CPU allows for efficient processing of instructions - Low-power consumption extends battery life in portable applications - Ample program memory and data storage options - Versatile communication interfaces enable connectivity with various devices - Timers/counters provide accurate timing and event counting capabilities - Interrupt capability enhances responsiveness to external events - GPIO pins offer flexibility in interfacing with external components

Disadvantages: - Limited program memory size compared to higher-end microcontrollers - Relatively small amount of RAM and data EEPROM - Limited number of I/O pins may restrict the number of connected devices

Working Principles

The AT87C51RB2-SLRUM microcontroller operates based on the Von Neumann architecture. It consists of a central processing unit (CPU) that executes instructions stored in its internal Flash memory. The CPU communicates with other peripherals and external devices through various communication interfaces, such as UART, SPI, and I2C.

The microcontroller can be programmed using a suitable development environment and programming tools. Once programmed, it can execute the stored program instructions to control connected electronic devices or perform specific tasks in embedded systems.

Detailed Application Field Plans

The AT87C51RB2-SLRUM microcontroller finds applications in various fields, including:

1. Industrial Automation: Control systems for machinery, robotics, and manufacturing processes.
2. Home Automation: Smart home devices, security systems, and energy management systems.
3. Automotive Electronics: Engine control units, dashboard displays, and vehicle diagnostics.
4. Consumer Electronics: Remote controls, gaming consoles, and multimedia devices.
5. Internet of Things (IoT): Connected devices, sensor networks, and data acquisition systems.

Detailed and Complete Alternative Models

1. AT89C51RD2-RLRIM: Similar 8-bit microcontroller with enhanced features and larger memory capacity.
2. ATmega328P-PU: 8-bit microcontroller from Atmel with higher clock speed and more I/O pins.