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W78L051A24FL
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W78L051A24FL

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Microcontroller
  • Characteristics: Low-power, 8-bit, Flash memory, 8051-compatible
  • Package: 24-pin Plastic Dual In-line Package (PDIP)
  • Essence: The W78L051A24FL is a microcontroller IC designed for low-power applications. It features an 8-bit architecture with Flash memory and is fully compatible with the popular 8051 microcontroller.
  • Packaging/Quantity: The W78L051A24FL is available in a 24-pin PDIP package.

Specifications

  • Architecture: 8-bit
  • CPU Speed: Up to 12 MHz
  • Program Memory: 4 KB Flash
  • Data Memory: 128 bytes RAM
  • I/O Pins: 16
  • Timers/Counters: 2 x 16-bit
  • Serial Communication: UART (Universal Asynchronous Receiver/Transmitter)
  • Operating Voltage: 2.4V - 5.5V
  • Operating Temperature: -40°C to +85°C

Detailed Pin Configuration

The W78L051A24FL has a total of 24 pins. Here is the detailed pin configuration:

  1. P0.0 / AD0 / RXD: Port 0.0 / Analog Input 0 / Serial Data Input
  2. P0.1 / AD1 / TXD: Port 0.1 / Analog Input 1 / Serial Data Output
  3. P0.2 / AD2 / INT0: Port 0.2 / Analog Input 2 / External Interrupt 0
  4. P0.3 / AD3 / INT1: Port 0.3 / Analog Input 3 / External Interrupt 1
  5. P0.4 / AD4 / T0: Port 0.4 / Analog Input 4 / Timer 0
  6. P0.5 / AD5 / T1: Port 0.5 / Analog Input 5 / Timer 1
  7. P0.6 / AD6 / WR: Port 0.6 / Analog Input 6 / Write Control
  8. P0.7 / AD7 / RD: Port 0.7 / Analog Input 7 / Read Control
  9. RESET: Reset Pin
  10. XTAL1: Crystal Oscillator Input
  11. XTAL2: Crystal Oscillator Output
  12. VSS: Ground
  13. P1.0 / ALE: Port 1.0 / Address Latch Enable
  14. P1.1 / AD8 / T2: Port 1.1 / Analog Input 8 / Timer 2
  15. P1.2 / AD9 / INT2: Port 1.2 / Analog Input 9 / External Interrupt 2
  16. P1.3 / AD10 / INT3: Port 1.3 / Analog Input 10 / External Interrupt 3
  17. P1.4 / AD11 / INT4: Port 1.4 / Analog Input 11 / External Interrupt 4
  18. P1.5 / AD12 / INT5: Port 1.5 / Analog Input 12 / External Interrupt 5
  19. P1.6 / AD13 / INT6: Port 1.6 / Analog Input 13 / External Interrupt 6
  20. P1.7 / AD14 / INT7: Port 1.7 / Analog Input 14 / External Interrupt 7
  21. VDD: Power Supply
  22. PSEN: Program Store Enable
  23. ALE / PROG: Address Latch Enable / Programming Voltage
  24. EA / VPP: External Access Enable / Programming Voltage

Functional Features

  • Low-power consumption, suitable for battery-powered applications
  • 8051-compatible architecture allows easy migration from existing designs
  • Flash memory enables in-system programming and flexibility in firmware updates
  • UART for serial communication with external devices
  • Two 16-bit timers/counters for precise timing operations
  • Multiple external interrupt pins for event-driven processing

Advantages and Disadvantages

Advantages

  • Low-power design extends battery life in portable applications
  • Compatibility with the widely-used 8051 microcontroller simplifies development and code reuse
  • In-system programming capability allows for firmware updates without removing the IC
  • Integrated UART simplifies serial communication with other devices
  • Ample I/O pins and timers/counters provide flexibility for various applications

Disadvantages

  • Limited program memory (4 KB) may restrict the complexity of applications
  • Limited data memory (128 bytes) may limit the amount of data that can be processed

10个与W78L051A24FL在技术解决方案中的应用相关的常见问题及解答

Sure! Here are 10 common questions and answers related to the application of W78L051A24FL in technical solutions:

  1. Q: What is the W78L051A24FL microcontroller used for? A: The W78L051A24FL is a microcontroller commonly used in various technical solutions, such as embedded systems, automation, and control applications.

  2. Q: What is the operating voltage range of the W78L051A24FL? A: The W78L051A24FL operates within a voltage range of 2.4V to 5.5V.

  3. Q: How much flash memory does the W78L051A24FL have? A: The W78L051A24FL has 8KB of flash memory for program storage.

  4. Q: Can I use the W78L051A24FL for analog signal processing? A: No, the W78L051A24FL is primarily a digital microcontroller and does not have built-in analog-to-digital converters (ADCs) or digital-to-analog converters (DACs).

  5. Q: Does the W78L051A24FL support communication protocols like UART, SPI, or I2C? A: Yes, the W78L051A24FL supports UART (Universal Asynchronous Receiver-Transmitter) for serial communication. However, it does not have dedicated hardware for SPI (Serial Peripheral Interface) or I2C (Inter-Integrated Circuit).

  6. Q: What is the maximum clock frequency of the W78L051A24FL? A: The W78L051A24FL can operate at a maximum clock frequency of 12MHz.

  7. Q: Can I use the W78L051A24FL in battery-powered applications? A: Yes, the W78L051A24FL is designed to be power-efficient and can be used in battery-powered applications.

  8. Q: Does the W78L051A24FL have any built-in timers or counters? A: Yes, the W78L051A24FL has two 16-bit timers/counters that can be used for various timing and counting applications.

  9. Q: Is the W78L051A24FL programmable in C language? A: Yes, the W78L051A24FL can be programmed using the C programming language, along with assembly language if required.

  10. Q: Can I use the W78L051A24FL in industrial environments with harsh conditions? A: The W78L051A24FL has a wide operating temperature range (-40°C to +85°C) and can withstand moderate levels of vibration and shock, making it suitable for many industrial applications.

Please note that these answers are general and may vary depending on the specific requirements and implementation of the W78L051A24FL microcontroller in different technical solutions.