PIC16F874A-I/PT

PIC16F874A-I/PT is Microchip’s 8‑bit PIC16 mid-range microcontroller in a 40‑pin DIP, Industrial temperature range (-40°C to +85°C), Plastic DIP packaging (PT).
Key points
- Core and memory: Harvard architecture with 14‑bit instruction word; on‑chip Flash program memory (thousands of words), RAM, and EEPROM.
- Clock: supports up to ~20 MHz oscillator.
- Peripherals: 10‑bit A/D converter with multiple channels, timers (Timer0/1/2), CCP/PWM, analog comparators, EUSART/UART, MSSP (SPI/I2C), Watchdog Timer, and interrupts.
- I/O: multiple I/O pins on Port A/B for general I/O and peripherals.
- Programming and power: ICSP programming support; sleep modes for low power; operating voltage typically 2.0–5.5 V.
- Packaging/variant: -I = Industrial temp range; -PT = Plastic DIP packaging (through-hole).
Applications
- Data acquisition, sensor interfacing, small control loops, and simple motor control.
Tools
- MPLAB X IDE and PICKit or compatible programmers for development.

Closest cross-reference within Microchip’s PIC16F87x family:
- PIC16F874A (the same device)
- PIC16F874 (non‑A variant)
- PIC16F873A
- PIC16F872A
Note: Subtle differences in pins/peripherals can exist; always verify with Microchip’s cross-reference/tool before substituting.

- Pin count: 40 pins (DIP-40; also available in other 40-pin packages).
- Function: 8-bit Microcontroller (PIC16F874A) with on‑chip program memory and peripherals (ADC, PWM/CCP, timers, USART, SPI/I2C MSSP, RAM, EEPROM, I/O ports) for embedded control. The “-I/PT” indicates industrial temperature range in a Plastic DIP package.

- Manufacturer: Microchip Technology Inc.
- What kind of company: An American multinational semiconductor company (an integrated device manufacturer) that designs, develops, manufactures, and sells microcontrollers, memory, and analog ICs worldwide.

PIC16F874A-I/PT is a general‑purpose 8‑bit MCU with ADC, timers and serial interfaces, suited for rugged environments (Industrial temp range). Typical application areas:
- Industrial automation and data acquisition (sensors, process control)
- Instrumentation and data logging
- Motor control and PWM-driven actuators
- Automotive instrumentation and dashboards
- Consumer electronics and home appliances (controllers, timers)
- Medical/portable devices and rugged embedded systems
- Prototyping, education, and hobby projects
Its on‑chip ADC, I/O, timers and serial peripherals support these embedded tasks efficiently.

Plastic DIP (40-pin) package, Industrial temperature range; PT indicates Plastic DIP in Tape & Reel packaging.