PIC16F877-20/PT

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The PIC16F877-20/PT is a member of the 8-bit mid-range family of Microchip microcontrollers. It is built on a RISC architecture and is used in numerous embedded applications. The PIC family includes a wide range of controllers, from the minimal PIC10F204 to the 32-bit PIC32MX695F512L. The PIC16F877-20/PT is an 8-bit microcontroller that features a 20 MHz internal oscillator and 256 bytes of RAM. This particular model also includes a pre-programmed bootloader that allows for easy programming and code update.

The PIC16F877-20/PT has three on-chip memory spaces: program memory, data memory, and data EEPROM. The program memory can hold up to 8192 instructions in program-only (flash) memory space and up to 1024 instructions in data-specific memory space. The on-chip EEPROM can store up to 128 bytes of data.The microcontroller also has a total of 21 I/O ports, with 8 being analog and 13 being digital. It also has an internal oscillator and an internal clock generator.

The PIC16F87-20/PT can typically be found in embedded systems. It is often used in the following applications:

• Industrial automation such as robotics, factory automation, and process control
• Consumer devices such as home automation systems and toys
• Medical devices such as diagnostic and monitoring devices
• Security systems such as digital door locks and surveillance systems
• Automotive applications such as dashboard gauges and vehicle control systems

The general working principle of the PIC16F877-20/PT microcontroller is simple. It contains two main components: the central processing unit (CPU) and the peripherals. The CPU is responsible for controlling the memory, the instruction set and the execution of the embedded code. The peripherals are responsible for controlling various functions such as the I/O pins, the timer/counter, and the communications routines. The CPU receives commands from the user via the embedded code, which is stored in the program memory. This code is in turn processed and executed by the CPU, and the results are sent to the peripherals for the appropriate functions to be carried out.

In order for the user to program the PIC16F877-20/PT, a suitable programming language must be used. The two most widely used programming languages used with this microcontroller are C and assembly. In the case of C, the user typically writes code that can be compiled into the machine code that is required by the microcontroller before it can be programmed. In the case of assembly, the user writes code in the assembly language that can be directly translated into machine code by the compiler.

The PIC16F877-20/PT is one of the most popular and widely used microcontrollers. It is used in a wide range of applications, and its simple architecture makes it easy to program and use. This particular model also includes a pre-programmed bootloader that allows for easy programming and code update.

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