What is the characteristic of PIC microcontroller?
What is a PIC microcontroller?
The PIC microcontroller is an integrated circuit (IC) used to develop and control peripheral devices. A CPU with decentralized (multitasking) capabilities. Compared with humans, the brain is the CPU, and the part shared by PIC is equivalent to the human nervous system.
PIC microcontroller is a small computer
PIC microcontrollers have computational functions and memory, like CPU and are controlled by software. However, processing power—the memory capacity is limited, depending on the type of PIC. However, their maximum operating frequency is about 20MHz, and the memory capacity is about 1K-4K bytes for writing programs.
The clock frequency is related to the time of the scanner and the time the program instructions are executed. However, the program processing capability cannot be judged only by the clock frequency, and it also changes with the architecture of the processing device (1*). If it is the same architecture, the processing power of the clock frequency will be stronger.
The word is used here to explain the program capacity. A instruction (2*) is used to represent a word. The memory (4*) capacity is usually expressed in bytes (3*). One byte has 8 bits, and each bit consists of 1 or 0. The instructions of the PIC16F84A microcontroller consist of 14 bits. When converting 1K sub-bits to: 1 x 1,024 x 14 = 14,336 bits. Then convert to byte: 14,336/(8 x 1,024) = 1.75K. When calculating the memory capacity, we specify 1G byte = 1,024M bytes, 1M bytes = 1,024K bytes, 1K bytes = 1,024 bytes. They are not in multiples of 1000 because this is done in binary.
1. The physical structure of a computer, including organizational structure, capacity, the computer's CPU, memory, and interconnections between input and output devices. Often referred to as the organization of the CPU, including its registers, flags, buses, arithmetic logic components, instruction decoding and execution mechanisms, and timing and control components.
2. A language construct can indicate an operation and identifie its operand (if there is an operand)
3. A binary string that operates as a unit (operating), usually shorter than a word on a computer.
4. All addressable memory spaces within the processor and other internal memory used to execute instructions.
When calculating the memory capacity, we specify 1G byte = 1,024M bytes, 1M bytes = 1,024K bytes, 1K bytes = 1,024 bytes. They are not in multiples of 1000 because this is done in binary.
It is possible to make the circuit very small with a PIC microcontroller.
Because the PIC microcontroller can make the calculation part, memory, input and output all in one chip. Therefore, she works very efficiently, her function is freely defined, and she can flexibly adapt to different control requirements without having to replace different ICs. This way it is possible for the circuit to be small.
If you want to know more, our website has product specifications for PIC microcontroller, you can go to ALLICDATA ELECTRONICS LIMITED to get more information