PIC16LF874A-I/PT

Product Overview

• Category: Microcontroller
• Use: Embedded systems, control applications
• Characteristics: Low power consumption, high performance, versatile
• Package: TQFP-44
• Essence: 8-bit microcontroller with Flash memory
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Architecture: RISC
• CPU Speed: 20 MHz
• Program Memory Size: 7.5 KB
• RAM Size: 368 bytes
• Data EEPROM Size: 256 bytes
• Number of I/O Pins: 33
• ADC Channels: 8
• Timers: 3
• Communication Interfaces: USART, SPI, I2C
• Operating Voltage Range: 2.0V to 5.5V
• Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The PIC16LF874A-I/PT microcontroller has a total of 44 pins. The pin configuration is as follows:

1. VDD - Power supply voltage
2. RA0 - General-purpose I/O pin
3. RA1 - General-purpose I/O pin
4. RA2 - General-purpose I/O pin
5. RA3 - General-purpose I/O pin
6. RA4 - General-purpose I/O pin
7. RA5 - General-purpose I/O pin
8. MCLR/VPP - Master Clear input or programming voltage
9. VSS - Ground
10. OSC1/CLKIN - Oscillator input
11. OSC2/CLKOUT - Oscillator output
12. RC0 - General-purpose I/O pin
13. RC1 - General-purpose I/O pin
14. RC2 - General-purpose I/O pin
15. RC3 - General-purpose I/O pin
16. RC4 - General-purpose I/O pin
17. RC5 - General-purpose I/O pin
18. VDD - Power supply voltage
19. RD0 - General-purpose I/O pin
20. RD1 - General-purpose I/O pin
21. RD2 - General-purpose I/O pin
22. RD3 - General-purpose I/O pin
23. RD4 - General-purpose I/O pin
24. RD5 - General-purpose I/O pin
25. RD6 - General-purpose I/O pin
26. RD7 - General-purpose I/O pin
27. VSS - Ground
28. RB0/INT - General-purpose I/O pin or external interrupt input
29. RB1 - General-purpose I/O pin
30. RB2 - General-purpose I/O pin
31. RB3 - General-purpose I/O pin
32. RB4 - General-purpose I/O pin
33. RB5 - General-purpose I/O pin
34. RB6 - General-purpose I/O pin
35. RB7 - General-purpose I/O pin
36. VDD - Power supply voltage
37. VSS - Ground
38. AVDD - Analog power supply voltage
39. AN0 - Analog input channel
40. AN1 - Analog input channel
41. AN2 - Analog input channel
42. AN3 - Analog input channel
43. AN4 - Analog input channel
44. AVSS - Analog ground

Functional Features

• High-performance RISC CPU
• Flash program memory for easy reprogramming
• Low power consumption for extended battery life
• Versatile I/O pins for flexible interfacing
• Built-in communication interfaces for easy connectivity
• On-chip analog-to-digital converter (ADC) for sensor applications
• Multiple timers for precise timing control
• Wide operating voltage and temperature range for various environments

Advantages and Disadvantages

Advantages: - High-performance CPU for efficient processing - Flash program memory allows easy reprogramming - Low power consumption extends battery life - Versatile I/O pins enable flexible interfacing - Built-in communication interfaces simplify connectivity

Disadvantages: - Limited program memory size (7.5 KB) - Limited RAM size (368 bytes) - Limited number of I/O pins (33)

Working Principles

The PIC16LF874A-I/PT microcontroller operates based on the RISC architecture. It executes instructions stored in its Flash program memory, which can be easily reprogrammed. The CPU performs various operations and controls the flow of data within the microcontroller.

The microcontroller interacts with external devices through its I/O pins, allowing it to interface with sensors, actuators, and other components. It also includes communication interfaces such as USART, SPI, and I2C, enabling seamless connectivity with other devices.

The built-in analog-to-digital converter (ADC) converts analog signals from sensors into digital values, making it suitable for applications that require sensor data acquisition.

Detailed Application Field Plans

The PIC