DS87C520-ECL+

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Embedded systems are increasingly being used in various application fields due to their superior processing power, space-saving form factor, low cost and flexibility. The DS87C520-ECL+ microcontroller is a popular choice for embedded designs and is used in a variety of different applications. This article will discuss the application field and working principle of the DS87C520-ECL+ microcontroller.

Overview

The DS87C520-ECL+ is an 8-bit flash memory microcontroller that has 1kbytes of on-board flash memory, 8kbytes of RAM, and a wide range of peripheral features including 2 UARTs, 2 timers, 8-channel 10-bit A/D converter, 6 pulse-width modulation channels, and more. It is part of 3 high-performance 8-bit microcontroller families from Dallas Semiconductor that provide the perfect balance of performance and integrated features.

Application Field

The DS87C520-ECL+ microcontroller is widely used in embedded applications, including industrial systems, consumer electronics and medical equipment. It is also well suited for low-power applications due to its low-voltage operation, fast execution time and low power requirements. The microcontroller is also ideal for applications that require a high degree of precision, such as motor control, HVAC systems and data acquisition systems.

The low cost and flexibility of the DS87C520-ECL+ make it a popular choice for mass-production applications such as automotive, home appliances and toys. Its wide range of features make it suitable for a variety of applications, from simple control tasks to complex real-time control systems.

Working Principle

The DS87C520-ECL+ microcontroller works on the Von Neumann architecture and is programmed with an instruction set that consists of 8-bit instructions. It is built on an 8-bit architecture, meaning that it can only process 8-bit data at a time, though it is capable of performing 16-bit operations through the use of assembly language functions.

The instruction set of the DS87C520-ECL+ consists of 12 addressing modes that allow for direct and indirect addressing of data. The microcontroller can support up to 256 bytes of internal program memory, which can be used to store the application program. To execute the program, the microcontroller fetches and decodes an instruction from program memory and executes it.

The DS87C520-ECL+ also supports interrupts, which are used to handle external events. When an external event occurs, an interrupt is triggered which causes the microcontroller to jump to an interrupt service routine (ISR). This allows the microcontroller to respond to the external event quickly and efficiently.

Conclusion

The DS87C520-ECL+ microcontroller is a popular choice for embedded applications due to its low cost and flexibility, as well as its wide range of features. It can be used in a variety of applications, from simple control tasks to complex real-time control systems. Its Von Neumann architecture and instruction set make it capable of performing a wide range of operations quickly and efficiently, while its support for interrupts allows it to respond to external events quickly and efficiently. Overall, the DS87C520-ECL+ is an excellent choice for embedded designs.

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