PIC16F1939-E/MV

Product Overview

Category

The PIC16F1939-E/MV belongs to the category of microcontrollers.

Use

This microcontroller is commonly used in various electronic applications that require embedded control and processing capabilities.

Characteristics

• High-performance 8-bit RISC architecture
• Flash program memory with self-read/write capability
• Enhanced mid-range core with 49 instructions
• Wide operating voltage range: 2.3V to 5.5V
• Low power consumption
• Multiple communication interfaces (UART, SPI, I2C)
• Analog-to-Digital Converter (ADC) module
• Timers and PWM modules for precise timing control
• Various interrupt sources for event-driven programming

Package

The PIC16F1939-E/MV is available in a compact 28-pin QFN package.

Essence

The essence of this microcontroller lies in its ability to provide a cost-effective solution for embedded systems requiring moderate processing power and peripheral integration.

Packaging/Quantity

The PIC16F1939-E/MV is typically packaged in reels containing a quantity of 250 units.

Specifications

• CPU Speed: Up to 32 MHz
• Program Memory Size: 28 KB
• RAM Size: 2 KB
• Number of I/O Pins: 25
• Operating Voltage Range: 2.3V to 5.5V
• ADC Resolution: 10-bit
• Number of Timers: 4
• Communication Interfaces: UART, SPI, I2C
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The PIC16F1939-E/MV features 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. RC0 - Digital I/O
13. RC1 - Digital I/O
14. RC2 - Digital I/O
15. RC3 - Digital I/O
16. RC4 - Digital I/O
17. RC5 - Digital I/O
18. RC6 - Digital I/O
19. RC7 - Digital I/O
20. OSC1/CLKI - Oscillator Input
21. OSC2/CLKO - Oscillator Output
22. RB0 - Digital I/O
23. RB1 - Digital I/O
24. RB2 - Digital I/O
25. RB3 - Digital I/O
26. RB4 - Digital I/O
27. RB5 - Digital I/O
28. MCLR/VPP - Master Clear / Programming Voltage

Functional Features

The PIC16F1939-E/MV microcontroller offers several functional features that enhance its usability and versatility:

1. Flash Program Memory: Allows for easy reprogramming of the microcontroller's firmware.
2. Enhanced Mid-Range Core: Provides a wide range of instructions for efficient program execution.
3. Communication Interfaces: UART, SPI, and I2C interfaces enable seamless integration with other devices.
4. Analog-to-Digital Converter (ADC): Enables precise measurement of analog signals.
5. Timers and PWM Modules: Facilitate accurate timing control and generation of PWM signals.
6. Interrupt Sources: Multiple interrupt sources allow for event-driven programming and efficient handling of external events.

Advantages and Disadvantages

Advantages

• Cost-effective solution for embedded systems
• Wide operating voltage range allows for flexibility in power supply selection
• Low power consumption extends battery life in portable applications
• Extensive peripheral integration reduces the need for additional components
• High-performance RISC architecture enables efficient program execution

Disadvantages

• Limited program memory size may restrict the complexity of applications
• 8-bit architecture may not be suitable for computationally intensive tasks
• Limited number of I/O pins may require external multiplexing in complex projects

Working Principles

The PIC16F1939-E/MV operates based on the principles of a typical microcontroller. It executes instructions stored in its program memory, interacts with various peripherals, and responds to external events through interrupts. The central processing unit (CPU) fetches instructions from memory, decodes them, and performs the necessary operations. The microcontroller's functional features, such as timers, ADC, and communication interfaces, enable it to interact with the external world and perform