DS80C390-QNR

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The DS80C390-QNR (Quasi-Industrial/NMOS/Reluctance) is an embedded microcontroller manufactured by Dallas Semiconductor and Maxim Integrated. It is a specific variation of their 8051-compatible family of embedded microcontrollers. This microcontroller is the most suitable choice for embedded industrial applications, due to its rugged and reliable design and wide I/O capabilities. In addition to its effectiveness in many industrial applications, the DS80C390-QNR can also be effectively utilized in medical, automotive, and aerospace technologies.

The DS80C390-QNR features an 8051-compatibile 8-bit 8052RISC CPU core with four UART (Universal Asynchronous Receiver-Transmitter) channels for communications. It operates at 20MHz with 4K Bytes of on-chip Program Memory and 2K Bytes of RAM Memory. The microcontroller also has three Voltagecontrolled oscillator circuits which allow a range of operating frequencies from 1.2MHz to 20MHz. It also has an integrated timer, interrupt controller, watchdog timer, four 8-bit I/O ports, and 64 I/O lines.

The working principle of the DS80C390-QNR is the same as any other 8051-derived microcontroller. It utilizes a Harvard architecture which means that its program memory and data memory areas are physically separated. This means that the microcontroller can access both types of memory simultaneously, which can allow it to perform complex operations such as read-modify-write operations in one clock cycle.

The microcontroller can also be used to perform a variety of functions such as input/output (I/O) control, data manipulation, and transferring of data across a network. It can also be used for self-diagnostics, communications management, and for the control of specialized devices. Additionally, its large memory capacity allows for the storage of large amounts of data, making it a suitable choice for applications that require large amounts of data processing.

The DS80C390-QNR is a very versatile and useful embedded microcontroller, due to its wide range of features and its easy integration into various applications. It is suitable for many types of applications and industries, including automotive, medical, and aerospace. Its wide range of features, combined with its rugged and reliable design, makes it an ideal choice for these applications.

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