P87C51RD2FBD/01,15

Basic Information Overview

• Category: Microcontroller
• Use: Embedded systems, control applications
• Characteristics: High-performance, low-power consumption, versatile
• Package: 40-pin DIP (Dual In-line Package)
• Essence: Central processing unit for controlling electronic devices
• Packaging/Quantity: Bulk packaging, typically sold in reels or tubes

Specifications

• Architecture: 8051
• CPU Speed: 33 MHz
• Program Memory Size: 8 KB
• RAM Size: 256 bytes
• Data EEPROM Size: 2 KB
• 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

The P87C51RD2FBD/01,15 microcontroller has a total of 40 pins. Here is the detailed pin configuration:

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

Functional Features

• High-performance 8-bit microcontroller based on the 8051 architecture
• Versatile I/O capabilities with 32 programmable pins
• Built-in timers/counters for precise timing and event counting
• Support for popular serial communication protocols (UART, SPI, I2C)
• Low-power consumption for energy-efficient applications
• Wide operating voltage range for flexibility in different power supply scenarios

Advantages and Disadvantages

Advantages

• Robust and reliable microcontroller suitable for various control applications
• Extensive I/O capabilities allow for interfacing with a wide range of devices
• Support for multiple serial communication protocols simplifies connectivity options
• Low-power consumption extends battery life in portable applications
• Well-established 8051 architecture ensures compatibility with existing software and tools

Disadvantages

• Limited program memory size (8 KB) may restrict the complexity of applications
• Relatively small RAM size (256 bytes) may limit data storage capacity
• Lack of built-in peripherals like ADC or DAC may require