The PIC16F874-20I/PQ is a microcontroller (MCU) manufactured by Microchip Technology. It belongs to the PIC16F series of 8-bit Flash microcontrollers, which are widely used in various embedded systems and applications.
Description:
The PIC16F874-20I/PQ is a high-performance, 8-bit CMOS microcontroller featuring enhanced mid-range capabilities with the benefits of Flash programming technology. It is available in a 28-pin PDIP (Plastic Dual In-Line Package) package.
Features:
- Flash memory: 14 kB of program memory, which can be programmed in-system (ISP) and in-application (IAP).
- RAM: 368 bytes of RAM, providing ample memory for data storage and program variables.
- EEPROM: 256 bytes of EEPROM memory for non-volatile data storage.
- I/O ports: 17 digital I/O pins with optional internal pull-up resistors.
- Analog-to-digital converter (ADC): 8-channel, 10-bit ADC with optional negative channel reference.
- Timers: Two 8-bit timers, one 16-bit timer, and a watchdog timer for timekeeping and event management.
- Communication interfaces: USART for serial communication, SPI for synchronous serial communication, and an I2C bus interface for low-speed serial communication.
- Power-on reset (POR), brown-out reset (BOR), and low-voltage programming (LVP) detect circuitry for enhanced reliability.
- Oscillator options: Internal oscillator with an external clock output or external oscillator with a wide range of frequencies.
- Active and idle power-saving modes: Sleep, idle, and power-down modes to reduce power consumption during periods of inactivity.
Applications:
The PIC16F874-20I/PQ is suitable for a wide range of applications due to its versatile features and capabilities. Some common applications include:
- Industrial control systems: For controlling and monitoring various industrial processes and machinery.
- Consumer electronics: In appliances like washing machines, air conditioners, and refrigerators for intelligent control and monitoring.
- Automotive systems: For engine control, power management, and safety systems.
- Telecommunication systems: In modems, routers, and other networking equipment for data processing and control.
- Medical devices: For monitoring and controlling medical equipment, such as blood glucose meters and infusion pumps.
- Security systems: In alarm systems, access control, and surveillance systems for enhanced security and monitoring.
- Data acquisition and signal processing: For collecting, processing, and analyzing data from various sensors and instruments.
The PIC16F874-20I/PQ's combination of features, such as ample memory, multiple communication interfaces, and power-saving modes, make it a popular choice for a wide variety of embedded applications.