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W78E858A40FL
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W78E858A40FL

Product Overview

  • Category: Microcontroller
  • Use: Embedded systems, control applications
  • Characteristics:
    • High-performance 8-bit microcontroller
    • Flash memory-based
    • Low power consumption
    • Wide operating voltage range
    • Small package size
  • Package: 44-pin LQFP (Low-profile Quad Flat Package)
  • Essence: A versatile microcontroller designed for various control applications.
  • Packaging/Quantity: Available in tape and reel packaging, quantity depends on supplier.

Specifications

  • Architecture: 8-bit
  • CPU Speed: Up to 40 MHz
  • Program Memory: 8 KB Flash
  • Data Memory: 256 bytes RAM
  • Operating Voltage Range: 2.4V to 5.5V
  • I/O Pins: 32
  • Timers/Counters: 3
  • Communication Interfaces: UART, SPI, I2C
  • ADC Channels: 8-bit, 8 channels
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The W78E858A40FL microcontroller has a total of 44 pins. The pin configuration is as follows:

  1. VSS - Ground
  2. P0.0 - General Purpose I/O
  3. P0.1 - General Purpose I/O
  4. P0.2 - General Purpose I/O
  5. P0.3 - General Purpose I/O
  6. P0.4 - General Purpose I/O
  7. P0.5 - General Purpose I/O
  8. P0.6 - General Purpose I/O
  9. P0.7 - General Purpose I/O
  10. RST - Reset Input
  11. XTAL1 - Crystal Oscillator Input
  12. XTAL2 - Crystal Oscillator Output
  13. P1.0 - General Purpose I/O
  14. P1.1 - General Purpose I/O
  15. P1.2 - General Purpose I/O
  16. P1.3 - General Purpose I/O
  17. P1.4 - General Purpose I/O
  18. P1.5 - General Purpose I/O
  19. P1.6 - General Purpose I/O
  20. P1.7 - General Purpose I/O
  21. EA/VPP - External Access Enable / Programming Voltage Input
  22. ALE/PROG - Address Latch Enable / Program Pulse Input
  23. PSEN - Program Store Enable Output
  24. P2.7/A15 - General Purpose I/O / Address Line 15
  25. P2.6/A14 - General Purpose I/O / Address Line 14
  26. P2.5/A13 - General Purpose I/O / Address Line 13
  27. P2.4/A12 - General Purpose I/O / Address Line 12
  28. P2.3/A11 - General Purpose I/O / Address Line 11
  29. P2.2/A10 - General Purpose I/O / Address Line 10
  30. P2.1/A9 - General Purpose I/O / Address Line 9
  31. P2.0/A8 - General Purpose I/O / Address Line 8
  32. VCC - Power Supply

Functional Features

  • High-performance 8-bit microcontroller suitable for control applications.
  • Flash memory-based program storage allows for easy reprogramming.
  • Low power consumption ensures efficient operation in battery-powered devices.
  • Wide operating voltage range provides flexibility in various applications.
  • Small package size enables compact designs.

Advantages and Disadvantages

Advantages: - High performance and versatility - Flash memory for easy reprogramming - Low power consumption - Wide operating voltage range

Disadvantages: - Limited program memory (8 KB) - Limited data memory (256 bytes RAM)

Working Principles

The W78E858A40FL microcontroller operates based on an 8-bit architecture. It executes instructions stored in its flash memory, which can be reprogrammed as needed. The microcontroller communicates with external devices through various interfaces such as UART, SPI, and I2C. It also features timers/counters for precise timing operations. The microcontroller's I/O pins allow for interaction with the external world, enabling control and monitoring of connected devices.

Detailed Application Field Plans

The W78E858A40FL microcontroller finds applications in various fields, including but not limited to:

  1. Industrial automation: Control systems for manufacturing processes, robotics, and machinery.
  2. Home automation: Smart home devices, lighting control, temperature monitoring.
  3. Automotive: Engine control units, dashboard displays, vehicle diagnostics.
  4. Consumer electronics: Remote controls, gaming peripherals, portable devices.
  5. Internet of Things (IoT): Sensor nodes, data acquisition systems, IoT gate

Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi W78E858A40FL dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of W78E858A40FL in technical solutions:

  1. Q: What is the W78E858A40FL microcontroller used for? A: The W78E858A40FL is a microcontroller commonly used in various technical solutions, such as industrial automation, consumer electronics, and automotive applications.

  2. Q: What is the maximum clock frequency supported by the W78E858A40FL? A: The W78E858A40FL supports a maximum clock frequency of 40 MHz.

  3. Q: How much program memory does the W78E858A40FL have? A: The W78E858A40FL has 64 KB of program memory.

  4. Q: What is the data memory capacity of the W78E858A40FL? A: The W78E858A40FL has 2 KB of data memory.

  5. Q: Does the W78E858A40FL support analog-to-digital conversion (ADC)? A: No, the W78E858A40FL does not have an integrated ADC.

  6. Q: Can I interface external memory with the W78E858A40FL? A: Yes, the W78E858A40FL supports external memory interfacing through its address and data bus.

  7. Q: What communication interfaces are supported by the W78E858A40FL? A: The W78E858A40FL supports UART (Universal Asynchronous Receiver-Transmitter) and SPI (Serial Peripheral Interface) communication interfaces.

  8. Q: Is the W78E858A40FL suitable for low-power applications? A: Yes, the W78E858A40FL has power-saving features like sleep mode and idle mode, making it suitable for low-power applications.

  9. Q: Can I program the W78E858A40FL using a standard programmer? A: Yes, the W78E858A40FL can be programmed using a standard programmer that supports the 8051 instruction set architecture.

  10. Q: What voltage levels does the W78E858A40FL operate at? A: The W78E858A40FL operates at a voltage range of 2.7V to 5.5V.

Please note that these answers are general and may vary depending on the specific implementation and datasheet of the microcontroller.