NXP USA Inc.
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P87C51RC+4A,512
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P87C51RC+4A,512

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: 8-bit microcontroller with on-chip Flash memory and I/O ports
  • Packaging/Quantity: Individual units

Specifications

  • Architecture: 8051
  • CPU Speed: 12 MHz
  • Program Memory Size: 4 KB
  • RAM Size: 128 bytes
  • I/O Pins: 32
  • Timers/Counters: 3
  • Serial Communication: UART
  • ADC Channels: 8-bit, 8 channels
  • Operating Voltage: 2.7V to 5.5V
  • Operating Temperature: -40°C to +85°C

Detailed Pin Configuration

The P87C51RC+4A,512 microcontroller has a total of 40 pins. The pin configuration is as follows:

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

Functional Features

  • On-chip Flash memory for program storage
  • I/O ports for interfacing with external devices
  • Timers and counters for time-based operations
  • UART for serial communication
  • ADC channels for analog input
  • Interrupts for handling external events
  • Power-saving modes for low-power applications

Advantages and Disadvantages

Advantages: - High-performance microcontroller - Low-power consumption - Versatile functionality - Ample I/O pins for interfacing with external devices - On-chip Flash memory eliminates the need for external storage

Disadvantages: - Limited program memory size (4 KB) - Limited RAM size (128 bytes) - Limited number of timers/counters (3)

Working Principles

The P87C51RC+4A,512 microcontroller is based on the 8051 architecture. It operates by executing instructions stored in its on-chip Flash memory. The CPU fetches instructions from memory, performs the necessary operations, and communicates with external devices through the I/O ports. The microcontroller can be programmed using various programming languages and development tools.

Detailed Application Field Plans

The P87C51RC+4A,512 microcontroller finds applications in various fields, including: 1. Industrial automation 2. Home automation 3. Robotics 4. Automotive systems 5. Consumer electronics 6. Medical devices 7. Security systems 8. Internet of Things (IoT) devices

Detailed and Complete Alternative Models

Some alternative models to the P87C51RC+4A,512 microcontroller are: 1. AT89C51-24PC - 8-bit microcontroller with 24 MHz CPU speed and 4 KB program memory. 2. PIC16F877A - 8-bit microcontroller with 20 MHz CPU speed and 8 KB program memory. 3. STM32F103C8T6 - 32-bit microcontroller with 72 MHz CPU speed and 64 KB program memory.

These alternative models offer different specifications and features, providing options for various application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací P87C51RC+4A,512 v technických řešeních

  1. Question: What is the P87C51RC+4A,512 microcontroller used for?
    Answer: The P87C51RC+4A,512 microcontroller is commonly used in technical solutions for various applications such as industrial control systems, automotive electronics, and consumer electronics.

  2. Question: What is the maximum clock frequency supported by the P87C51RC+4A,512 microcontroller?
    Answer: The P87C51RC+4A,512 microcontroller supports a maximum clock frequency of 33 MHz.

  3. Question: How much program memory does the P87C51RC+4A,512 microcontroller have?
    Answer: The P87C51RC+4A,512 microcontroller has 4 KB of on-chip program memory.

  4. Question: Can I expand the program memory of the P87C51RC+4A,512 microcontroller?
    Answer: No, the program memory of the P87C51RC+4A,512 microcontroller cannot be expanded externally.

  5. Question: How much RAM is available in the P87C51RC+4A,512 microcontroller?
    Answer: The P87C51RC+4A,512 microcontroller has 256 bytes of on-chip RAM.

  6. Question: Does the P87C51RC+4A,512 microcontroller support interrupts?
    Answer: Yes, the P87C51RC+4A,512 microcontroller supports both external and internal interrupts.

  7. Question: What are the communication interfaces available in the P87C51RC+4A,512 microcontroller?
    Answer: The P87C51RC+4A,512 microcontroller features a UART (Universal Asynchronous Receiver/Transmitter) for serial communication.

  8. Question: Can I use the P87C51RC+4A,512 microcontroller for analog signal processing?
    Answer: No, the P87C51RC+4A,512 microcontroller does not have built-in analog-to-digital converters (ADCs) or digital-to-analog converters (DACs).

  9. Question: What is the operating voltage range of the P87C51RC+4A,512 microcontroller?
    Answer: The P87C51RC+4A,512 microcontroller operates within a voltage range of 2.7V to 5.5V.

  10. Question: Is the P87C51RC+4A,512 microcontroller still in production?
    Answer: No, the P87C51RC+4A,512 microcontroller is an older model and may no longer be in production.