P87C51RC2FA,512

Basic Information Overview

• Category: Microcontroller
• Use: Embedded systems, control applications
• Characteristics: 8-bit microcontroller, high-performance, low-power consumption
• Package: 40-pin DIP (Dual In-line Package)
• Essence: Central processing unit for controlling electronic devices
• Packaging/Quantity: Individually packaged, quantity depends on the order

Specifications

• Architecture: 8051
• CPU Speed: 12 MHz
• Program Memory Size: 8 KB
• RAM Size: 256 bytes
• I/O Pins: 32
• Timers/Counters: 3
• Serial Communication: UART, SPI, I2C
• Operating Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VCC - Power supply voltage
2. GND - Ground
3. XTAL1 - Crystal oscillator input
4. XTAL2 - Crystal oscillator output
5. RST - Reset input
6. EA/VPP - External Access/Programming Enable
7. PSEN - Program Store Enable
8. ALE/PROG - Address Latch Enable/Program Pulse
9. P0.0 - Port 0, Pin 0
10. P0.1 - Port 0, Pin 1
11. P0.2 - Port 0, Pin 2
12. P0.3 - Port 0, Pin 3
13. P0.4 - Port 0, Pin 4
14. P0.5 - Port 0, Pin 5
15. P0.6 - Port 0, Pin 6
16. P0.7 - Port 0, Pin 7
17. P1.0 - Port 1, Pin 0
18. P1.1 - Port 1, Pin 1
19. P1.2 - Port 1, Pin 2
20. P1.3 - Port 1, Pin 3
21. P1.4 - Port 1, Pin 4
22. P1.5 - Port 1, Pin 5
23. P1.6 - Port 1, Pin 6
24. P1.7 - Port 1, Pin 7
25. P2.0 - Port 2, Pin 0
26. P2.1 - Port 2, Pin 1
27. P2.2 - Port 2, Pin 2
28. P2.3 - Port 2, Pin 3
29. P2.4 - Port 2, Pin 4
30. P2.5 - Port 2, Pin 5
31. P2.6 - Port 2, Pin 6
32. P2.7 - Port 2, Pin 7
33. P3.0 - Port 3, Pin 0
34. P3.1 - Port 3, Pin 1
35. P3.2 - Port 3, Pin 2
36. P3.3 - Port 3, Pin 3
37. P3.4 - Port 3, Pin 4
38. P3.5 - Port 3, Pin 5
39. P3.6 - Port 3, Pin 6
40. P3.7 - Port 3, Pin 7

Functional Features

• High-performance 8-bit CPU with a wide range of integrated peripherals
• Low-power consumption for energy-efficient applications
• On-chip program memory and RAM for storing instructions and data
• Multiple I/O pins for interfacing with external devices
• Built-in timers/counters for precise timing operations
• Serial communication interfaces (UART, SPI, I2C) for data exchange
• Reset input for system initialization
• Address latch enable for multiplexed address/data bus

Advantages and Disadvantages

Advantages

• 8051 architecture provides a proven and reliable platform for control applications
• High-performance CPU allows for efficient execution of instructions
• Low-power consumption extends battery life in portable devices
• Integrated peripherals reduce the need for external components
• Wide operating voltage range enables flexibility in power supply options

Disadvantages

• Limited program memory size may restrict the complexity of applications
• 8-bit architecture may not be suitable for computationally intensive tasks
• Lack of advanced features found in modern microcontrollers

Working Principles

The P87C51RC2FA,512 operates based on the 8051 architecture. It executes instructions stored in its program memory and manipulates data stored in