PIC18F4431-I/P

Program Memory Type:	FLASH
Base Part Number:	PIC18F4431
Supplier Device Package:	40-PDIP
Package / Case:	40-DIP (0.600", 15.24mm)
Operating Temperature:	-40°C ~ 85°C (TA)
Oscillator Type:	Internal
Data Converters:	A/D 9x10b
Voltage - Supply (Vcc/Vdd):	4.2 V ~ 5.5 V
RAM Size:	768 x 8
EEPROM Size:	256 x 8
Series:	PIC® 18F
Program Memory Size:	16KB (8K x 16)
Number of I/O:	36
Peripherals:	Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
Connectivity:	I²C, SPI, UART/USART
Speed:	40MHz
Core Size:	8-Bit
Core Processor:	PIC
Part Status:	Active
Packaging:	Tube

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Embedded - Microcontrollers

PIC18F4431-I/P is an 8-bit microcontroller from Microchip Technology, Inc., one of the leading semiconductor suppliers in the world. It is a member of the 8-bit PIC18 family of microcontrollers, which are known for their low cost, low power, and high performance.At the heart of the PIC18F4431-I/P is its core processor, the PIC18F4321 CPU. This CPU has a 16-bit data bus, with a 2 clock-per-data cycle architecture. It is based on the Harvard architecture and is RISC-based, meaning that it is designed to execute simple instructions quickly. Its maximum internal clock frequency is 20 MHz and it can also be externally clocked up to 40 MHz.The PIC18F4431-I/P also features 4KB of program memory and 256 bytes of RAM. It is also equipped with three timers, two Capture/Compare/PWM channels, a USART, seven 8-bit ports, and a 8-level priority interrupt controller. It also has several advanced features, such as a 10-bit A/D converter with up to 8 channels, an I2C interface, and an SPI interface. The PIC18F4431-I/P has numerous applications including control systems for motor control, data acquisition, and embedded data communications. Other applications include industrial automation, small office/home and consumer appliances, and hobby projects. With its low cost, low power consumption, and high performance, the PIC18F4431-I/P is a popular choice for embedded and microcontroller applications.To understand how the PIC18F4431-I/P works, let\'s focus on its principles of operation. The PIC18F4431-I/P’s main principle is to execute instructions provided by a program repetitively. This program can be written the user in assembly language or any high-level language such as C, C++, and Java. The program is stored in the microcontroller’s memory, which it can access for instructions. The PIC18F4431-I/P also uses special instructions to access its onboard peripherals, such as the timer/counters, USART, A/D converter, I2C and SPI interfaces, and other peripheral devices. These peripherals are accessed through their memory-mapped addresses or through special memory-mapped registers.The PIC18F4431-I/P uses an instruction pipeline to execute the instructions. This pipeline consists of four stages–fetch, decode, execute, and writeback. In the fetch stage, the instruction is retrieved from memory and then decoded. In the execute stage, the actual executing of the instruction takes place. In the writeback stage, the results of the instruction are written back to the registers.Overall, the PIC18F4431-I/P is an excellent choice for applications where low cost, low power, and high performance are important. With its wide range of features and its efficient instruction pipeline, this microcontroller is suitable for a variety of embedded and microcontroller projects. It is a cost effective solution for many applications, and its low-power operation makes it ideal for portable applications.

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