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P87C661X2BBD,157
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P87C661X2BBD,157

Basic Information Overview

  • Category: Microcontroller
  • Use: Embedded systems, control applications
  • Characteristics: High-performance, low-power consumption
  • Package: 44-pin plastic quad flat package (PQFP)
  • Essence: Integrated microcontroller with on-chip memory and peripherals
  • Packaging/Quantity: Individually packaged, quantity depends on order

Specifications

  • Architecture: 8-bit
  • CPU Speed: 20 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

  1. VSS (Ground)
  2. XTAL1 (Crystal Oscillator Input)
  3. XTAL2 (Crystal Oscillator Output)
  4. RESET (Reset Input)
  5. P0.0 (Port 0, Bit 0)
  6. P0.1 (Port 0, Bit 1)
  7. P0.2 (Port 0, Bit 2)
  8. P0.3 (Port 0, Bit 3)
  9. P0.4 (Port 0, Bit 4)
  10. P0.5 (Port 0, Bit 5)
  11. P0.6 (Port 0, Bit 6)
  12. P0.7 (Port 0, Bit 7)
  13. P1.0 (Port 1, Bit 0)
  14. P1.1 (Port 1, Bit 1)
  15. P1.2 (Port 1, Bit 2)
  16. P1.3 (Port 1, Bit 3)
  17. P1.4 (Port 1, Bit 4)
  18. P1.5 (Port 1, Bit 5)
  19. P1.6 (Port 1, Bit 6)
  20. P1.7 (Port 1, Bit 7)
  21. P2.0 (Port 2, Bit 0)
  22. P2.1 (Port 2, Bit 1)
  23. P2.2 (Port 2, Bit 2)
  24. P2.3 (Port 2, Bit 3)
  25. P2.4 (Port 2, Bit 4)
  26. P2.5 (Port 2, Bit 5)
  27. P2.6 (Port 2, Bit 6)
  28. P2.7 (Port 2, Bit 7)
  29. PSEN (Program Store Enable)
  30. ALE/PROG (Address Latch Enable/Program Pulse Input)
  31. EA/VPP (External Access Enable/Programming Supply Voltage)
  32. P3.0/RXD (Port 3, Bit 0/Serial Receive Data)
  33. P3.1/TXD (Port 3, Bit 1/Serial Transmit Data)
  34. P3.2/INT0 (Port 3, Bit 2/External Interrupt 0)
  35. P3.3/INT1 (Port 3, Bit 3/External Interrupt 1)
  36. P3.4/T0 (Port 3, Bit 4/Timer 0 External Input)
  37. P3.5/T1 (Port 3, Bit 5/Timer 1 External Input)
  38. P3.6/WR (Port 3, Bit 6/Write Control)
  39. P3.7/RD (Port 3, Bit 7/Read Control)
  40. VCC (Supply Voltage)

Functional Features

  • High-performance 8-bit CPU with a wide range of instructions
  • On-chip memory for program storage and data handling
  • Multiple communication interfaces for connectivity
  • Timers/counters for precise timing operations
  • Interrupt capability for event-driven programming
  • Low-power consumption for energy-efficient applications

Advantages and Disadvantages

Advantages

  • High-performance CPU allows for efficient processing
  • Integrated memory reduces the need for external components
  • Multiple communication interfaces enhance connectivity options
  • Low-power consumption extends battery life in portable devices

Disadvantages

  • Limited program memory size may restrict complex applications
  • Small RAM size may limit data storage capabilities
  • 8-bit architecture may not be suitable for certain advanced applications

Working Principles

The P87C661X2BBD,157 microcontroller operates based on an 8-bit architecture. It executes instructions stored in its program memory

Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng P87C661X2BBD,157 trong giải pháp kỹ thuật

Sure! Here are 10 common questions and answers related to the application of P87C661X2BBD,157 in technical solutions:

  1. Q: What is the P87C661X2BBD,157 microcontroller used for? A: The P87C661X2BBD,157 microcontroller is commonly used for various embedded applications that require control and processing capabilities.

  2. Q: What is the maximum clock frequency supported by the P87C661X2BBD,157? A: The P87C661X2BBD,157 supports a maximum clock frequency of XX MHz (replace XX with the actual value).

  3. Q: How much program memory does the P87C661X2BBD,157 have? A: The P87C661X2BBD,157 has XX KB (replace XX with the actual value) of program memory.

  4. Q: Can I interface external memory with the P87C661X2BBD,157? A: No, the P87C661X2BBD,157 does not support external memory interfacing. It has limited on-chip memory resources.

  5. Q: What types of communication interfaces are available on the P87C661X2BBD,157? A: The P87C661X2BBD,157 provides UART (Universal Asynchronous Receiver-Transmitter) and I2C (Inter-Integrated Circuit) communication interfaces.

  6. Q: Does the P87C661X2BBD,157 have any analog-to-digital converter (ADC) channels? A: No, the P87C661X2BBD,157 does not have any built-in ADC channels. External ADCs can be used if required.

  7. Q: Can I use the P87C661X2BBD,157 for real-time applications? A: Yes, the P87C661X2BBD,157 can be used for real-time applications as it has a built-in timer/counter and interrupt capabilities.

  8. Q: What is the operating voltage range of the P87C661X2BBD,157? A: The P87C661X2BBD,157 operates within a voltage range of XX V to YY V (replace XX and YY with the actual values).

  9. Q: Is the P87C661X2BBD,157 suitable for low-power applications? A: Yes, the P87C661X2BBD,157 has power-saving features like idle mode and power-down mode, making it suitable for low-power applications.

  10. Q: Are development tools and software available for programming the P87C661X2BBD,157? A: Yes, various development tools and software, such as IDEs (Integrated Development Environments) and compilers, are available for programming the P87C661X2BBD,157 microcontroller.

Please note that the answers provided here are general and may vary depending on the specific datasheet and documentation of the P87C661X2BBD,157 microcontroller.