PIC18F2420-I/SP

Product Overview

Category

The PIC18F2420-I/SP belongs to the category of microcontrollers.

Use

This microcontroller is commonly used in various electronic devices and embedded systems for controlling and processing data.

Characteristics

• High-performance 8-bit architecture
• Flash-based program memory
• Low power consumption
• Wide operating voltage range
• Enhanced peripheral integration
• Flexible I/O options

Package

The PIC18F2420-I/SP is available in a 28-pin plastic dual inline package (DIP).

Essence

The essence of this microcontroller lies in its ability to provide efficient control and processing capabilities in a compact and versatile package.

Packaging/Quantity

The PIC18F2420-I/SP is typically packaged in reels or tubes, with a quantity of 25 units per tube.

Specifications

• Architecture: 8-bit
• Program Memory Size: 16KB
• RAM Size: 768 bytes
• Operating Voltage Range: 2.0V to 5.5V
• Maximum Speed: 40 MHz
• Number of I/O Pins: 22
• Timers: 3
• Analog-to-Digital Converter (ADC): 10-bit, 13 channels
• Communication Interfaces: USART, SPI, I2C

Detailed Pin Configuration

The PIC18F2420-I/SP has a total of 28 pins, each serving a specific purpose. The pin configuration is as follows:

1. RA0 - Analog Input / Digital I/O
2. RA1 - Analog Input / Digital I/O
3. RA2 - Analog Input / Digital I/O
4. RA3 - Analog Input / Digital I/O
5. RA4 - Analog Input / Digital I/O
6. RA5 - Analog Input / Digital I/O
7. RE0 - Digital I/O
8. RE1 - Digital I/O
9. RE2 - Digital I/O
10. VSS - Ground
11. VDD - Power Supply
12. OSC1/CLKI - Oscillator Input
13. OSC2/CLKO - Oscillator Output
14. RC0 - Digital I/O
15. RC1 - Digital I/O
16. RC2 - Digital I/O
17. RC3 - Digital I/O
18. RC4 - Digital I/O
19. RC5 - Digital I/O
20. RB0/INT0 - Digital I/O / External Interrupt 0
21. RB1/INT1 - Digital I/O / External Interrupt 1
22. RB2/INT2 - Digital I/O / External Interrupt 2
23. RB3/CCP2 - Digital I/O / Capture/Compare/PWM 2
24. RB4/SDI/SDA - Digital I/O / Serial Data Input / I2C Data
25. RB5/SDO/SCL - Digital I/O / Serial Data Output / I2C Clock
26. RB6/PGC - Digital I/O / Programming and Debugging Clock
27. RB7/PGD - Digital I/O / Programming and Debugging Data
28. MCLR/VPP - Master Clear / Programming Voltage

Functional Features

The PIC18F2420-I/SP offers several functional features that enhance its usability and performance:

• Flash memory for program storage
• EEPROM data memory for non-volatile storage
• Enhanced Capture/Compare/PWM (CCP) module for precise timing control
• Analog-to-Digital Converter (ADC) for analog signal processing
• USART, SPI, and I2C communication interfaces for data exchange
• Timers for accurate timekeeping and event triggering
• Interrupt capability for handling real-time events
• Power-saving modes to optimize energy consumption

Advantages and Disadvantages

Advantages

• High-performance 8-bit architecture enables efficient data processing.
• Flash-based program memory allows for easy reprogramming and updates.
• Enhanced peripheral integration reduces the need for external components.
• Low power consumption extends battery life in portable applications.
• Wide operating voltage range provides flexibility in various power supply scenarios.

Disadvantages

• Limited program memory size may restrict the complexity of applications.
• Relatively small RAM size may limit the amount of data that can be processed simultaneously.
• Lack of built-in Ethernet or Wi-Fi connectivity may require additional components for network communication.

Working Principles

The PIC18F2420-I/SP operates based on the principles of a typical microcontroller. It executes instructions stored in its program memory, interacts with peripherals and I/O pins, and responds to external events through interrupts. The microcontroller's central processing unit (CPU) fetches instructions from memory, decodes them, and performs the necessary operations. Data is transferred between memory, registers, and peripherals