PIC16F874-04/P

Program Memory Type:	FLASH
Base Part Number:	PIC16F874
Supplier Device Package:	40-PDIP
Package / Case:	40-DIP (0.600", 15.24mm)
Operating Temperature:	0°C ~ 70°C (TA)
Oscillator Type:	External
Data Converters:	A/D 8x10b
Voltage - Supply (Vcc/Vdd):	4 V ~ 5.5 V
RAM Size:	192 x 8
EEPROM Size:	128 x 8
Series:	PIC® 16F
Program Memory Size:	7KB (4K x 14)
Number of I/O:	33
Peripherals:	Brown-out Detect/Reset, POR, PWM, WDT
Connectivity:	I²C, SPI, UART/USART
Speed:	4MHz
Core Size:	8-Bit
Core Processor:	PIC
Part Status:	Active
Packaging:	Tube

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PIC16F874-04/P is a mid-range performance, 8-bit RISC-based microcontroller. It is a member of the PIC family of microcontrollers manufactured by Microchip Technology, Inc. This microcontroller is suitable for a variety of applications and has been created to manage different user requirements. PIC16F874-04/P is designed with four 8-bit registers, as well as eight 16-bit registers. It can execute instructions at a rate of up to 20 MHz and its instruction set include 23 instructions for arithmetic, logical, and program flow operations.The PIC16F874-04/P has several forms of memory including data RAM that is used for temporary variables and data stored by the program. It also stores permanent data such as configuration data and Flash memory that stores the program code. This microcontroller has a variety of peripherals, including UART (Universal Asynchronous Receiver / Transmitter) module which supports data communication; A/D (Analog to Digital) converter module which converts analog signals to digital values; and I/O (Input/Output) ports which are used to send and receive digital signals.One of the most common applications of the PIC16F874-04/P is in real-time systems. Such systems often require precise timing of operations and PIC16F874-04/P can provide this using internal timers and input/output ports. The microcontroller can be used to read and process data from various sensors, such as vibration, pressure, temperature, and humidity sensors. It can also be used to control motors, solenoids and electromechanical systems.The working principle of a PIC16F874-04/P microcontroller involves three main steps: programming, execution, and control. The programming step involves writing code for the microcontroller in a high-level language, such as C language. In the execution step, the code is translated into the machine language of the microcontroller and the instructions are executed. In the control step, the instructions are carried out in response to external inputs, such as the signals from sensors or the instructions of the user.The PIC16F874-04/P microcontroller has several useful features. It includes a watchdog timer that resets the system in the event of an unexpected event, which is especially useful in applications where the system needs to be restarted when it malfunctions or if the user-programmed instructions go wrong. It also has a power-on reset function that ensures that the microcontroller starts up in a known good state. It also supports interrupt servicing, which prevents the microcontroller from being blocked by a single task and allows it to respond to external events.In summary, the PIC16F874-04/P microcontroller is suitable for a wide variety of applications and provides an efficient solution for many embedded systems. It is an excellent choice for applications that require precise timing and fast, reliable input/output operations. The features of the PIC16F874-04/P microcontroller make it an attractive choice for embedded engineers and developers, providing them with a powerful, easy-to-use solution for their applications.

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