NXP USA Inc.
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P87C51RB+4A,512
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P87C51RB+4A,512

Basic Information Overview

  • Category: Microcontroller
  • Use: Embedded systems, control applications
  • Characteristics:
    • 8-bit microcontroller
    • 80C51 architecture
    • 4K bytes of on-chip ROM
    • 128 bytes of on-chip RAM
    • 32 programmable I/O lines
    • 3 Timers/Counters
    • UART serial interface
  • Package: 40-pin PDIP (Plastic Dual In-line Package)
  • Essence: High-performance microcontroller for control applications
  • Packaging/Quantity: Available in tubes or reels, quantity depends on supplier

Specifications

  • Architecture: 80C51
  • Data Bus Width: 8-bit
  • Program Memory Size: 4K bytes
  • RAM Size: 128 bytes
  • Number of I/O Lines: 32
  • Timers/Counters: 3
  • Serial Interface: UART
  • Operating Voltage Range: 2.7V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Speed Grade: 12 MHz

Detailed Pin Configuration

  1. VCC
  2. P0.0 / AD0
  3. P0.1 / AD1
  4. P0.2 / AD2
  5. P0.3 / AD3
  6. P0.4 / AD4
  7. P0.5 / AD5
  8. P0.6 / AD6
  9. P0.7 / AD7
  10. RST
  11. P1.0 / T2
  12. P1.1 / T2EX
  13. P1.2 / WR
  14. P1.3 / RD
  15. P1.4 / T0
  16. P1.5 / T1
  17. P1.6 / INT0
  18. P1.7 / INT1
  19. XTAL2
  20. XTAL1
  21. GND
  22. P2.0 / A8
  23. P2.1 / A9
  24. P2.2 / A10
  25. P2.3 / A11
  26. P2.4 / A12
  27. P2.5 / A13
  28. P2.6 / A14
  29. P2.7 / A15
  30. EA / VPP
  31. ALE / PROG
  32. PSEN
  33. P3.0 / RXD
  34. P3.1 / TXD
  35. P3.2 / INT2
  36. P3.3 / INT3
  37. P3.4 / T2EX
  38. P3.5 / T2
  39. P3.6 / WR
  40. P3.7 / RD

Functional Features

  • 8-bit microcontroller with 80C51 architecture
  • On-chip ROM for program storage
  • On-chip RAM for data storage
  • Multiple I/O lines for interfacing with external devices
  • Timers/Counters for time-based operations
  • UART serial interface for communication
  • Low power consumption
  • Wide operating voltage and temperature range

Advantages

  • High-performance microcontroller suitable for control applications
  • Ample program and data storage on-chip
  • Versatile I/O capabilities for interfacing with various devices
  • Reliable and robust design
  • Low power consumption extends battery life in portable applications

Disadvantages

  • Limited program memory size compared to some modern microcontrollers
  • Limited RAM size for data storage
  • Lack of advanced features found in more recent microcontrollers

Working Principles

The P87C51RB+4A,512 operates based on the 80C51 architecture. It executes instructions stored in its on-chip ROM and uses the on-chip RAM for temporary data storage. The microcontroller communicates with external devices through its I/O lines and can perform time-based operations using the built-in timers/counters. The UART serial interface enables communication with other devices or systems.

Detailed Application Field Plans

The P87C51RB+4A,512 is commonly used in various embedded systems and control applications. Some specific application fields include: - Industrial automation - Home automation - Robotics - Automotive electronics - Consumer electronics - Medical devices

Detailed and Complete Alternative Models

  • P89C51RD2 - 8-bit microcontroller with larger program memory and additional features
  • AT89S52 - 8-bit microcontroller with similar architecture and features
  • PIC16F877A - 8-bit microcontroller from Microchip with enhanced capabilities

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기술 솔루션에 P87C51RB+4A,512 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

Sure! Here are 10 common questions and answers related to the application of P87C51RB+4A,512 in technical solutions:

  1. Q: What is the P87C51RB+4A,512 microcontroller used for? A: The P87C51RB+4A,512 microcontroller is commonly used in various technical solutions that require embedded control and processing capabilities.

  2. Q: What is the maximum clock frequency supported by the P87C51RB+4A,512? A: The P87C51RB+4A,512 supports a maximum clock frequency of 33 MHz.

  3. Q: How much program memory does the P87C51RB+4A,512 have? A: The P87C51RB+4A,512 has 4 KB of on-chip program memory.

  4. Q: Can I expand the program memory of the P87C51RB+4A,512? A: No, the P87C51RB+4A,512 does not support external program memory expansion.

  5. Q: How much RAM does the P87C51RB+4A,512 have? A: The P87C51RB+4A,512 has 256 bytes of on-chip RAM.

  6. Q: Can I expand the RAM of the P87C51RB+4A,512? A: No, the P87C51RB+4A,512 does not support external RAM expansion.

  7. Q: What type of communication interfaces does the P87C51RB+4A,512 support? A: The P87C51RB+4A,512 supports UART (Universal Asynchronous Receiver/Transmitter) and I2C (Inter-Integrated Circuit) communication interfaces.

  8. Q: Can I use the P87C51RB+4A,512 for real-time applications? A: Yes, the P87C51RB+4A,512 can be used for real-time applications as it has built-in timers and interrupts.

  9. Q: What is the operating voltage range of the P87C51RB+4A,512? A: The P87C51RB+4A,512 operates within a voltage range of 2.7V to 5.5V.

  10. Q: Is the P87C51RB+4A,512 suitable for low-power applications? A: Yes, the P87C51RB+4A,512 has power-saving features like idle mode and power-down mode, making it suitable for low-power applications.

Please note that these answers are based on general knowledge about the P87C51RB+4A,512 microcontroller. For specific technical details, it is recommended to refer to the datasheet or documentation provided by the manufacturer.