PIC16C74AT-20/L

Product Overview

Category

The PIC16C74AT-20/L belongs to the category of microcontrollers.

Use

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

Characteristics

• The PIC16C74AT-20/L operates at a clock frequency of 20 MHz.
• It has a 8-bit architecture, making it suitable for handling small to medium complexity tasks.
• This microcontroller offers a wide range of peripherals and features, including timers, UART, ADC, and more.
• It supports both analog and digital input/output operations.
• The PIC16C74AT-20/L is designed to be low power, making it suitable for battery-powered applications.

Package

The PIC16C74AT-20/L is available in a 44-pin plastic dual inline package (PDIP).

Essence

The essence of the PIC16C74AT-20/L lies in its ability to provide a cost-effective solution for embedded control applications with moderate complexity requirements.

Packaging/Quantity

The PIC16C74AT-20/L is typically packaged in reels or tubes, with a quantity of 1000 units per reel/tube.

Specifications

• Architecture: 8-bit
• Clock Frequency: 20 MHz
• Program Memory Size: 4 KB
• RAM Size: 192 bytes
• Number of I/O Pins: 33
• Operating Voltage Range: 2.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data EEPROM Size: 128 bytes
• Timers: 3
• Analog-to-Digital Converter (ADC): 8 channels, 10-bit resolution
• Serial Communication: USART, SPI, I2C

Detailed Pin Configuration

The PIC16C74AT-20/L 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/TOCKI - General-purpose I/O pin / Timer Clock input
7. RA5/MCLR/VPP - Master Clear input / Programming voltage input
8. RE0 - General-purpose I/O pin
9. RE1 - General-purpose I/O pin
10. RE2 - General-purpose I/O pin
11. VSS - Ground

...

Functional Features

The PIC16C74AT-20/L offers several functional features that enhance its usability and versatility in various applications:

1. Timers: The microcontroller includes three timers, which can be used for precise timing and event generation.
2. Analog-to-Digital Converter (ADC): With an 8-channel, 10-bit resolution ADC, the PIC16C74AT-20/L enables accurate analog signal measurement and conversion.
3. Serial Communication: The microcontroller supports USART, SPI, and I2C protocols, allowing seamless integration with other devices and communication interfaces.
4. Low Power Consumption: Designed to operate at low power, the PIC16C74AT-20/L is suitable for battery-powered applications, extending the device's runtime.

Advantages and Disadvantages

Advantages

• Cost-effective solution for embedded control applications
• Wide range of peripherals and features
• Low power consumption
• Versatile serial communication options

Disadvantages

• Limited program memory size (4 KB)
• Limited RAM size (192 bytes)
• Relatively low clock frequency (20 MHz)

Working Principles

The PIC16C74AT-20/L operates based on the principles of a Harvard architecture microcontroller. It executes instructions stored in its program memory, performs data processing and manipulation using its CPU, and interacts with external devices through its I/O pins and peripherals.

Detailed Application Field Plans

The PIC16C74AT-20/L finds applications in various fields, including but not limited to:

1. Industrial Automation: The microcontroller can be used for controlling and monitoring industrial processes, such as temperature control, motor control, and data acquisition.
2. Consumer Electronics: It can be employed in consumer electronic devices like home appliances, remote controls, and gaming consoles.
3. Automotive Systems: The PIC16C74AT-20/L can be utilized in automotive applications, such as engine management systems, dashboard control, and lighting control.
4. Medical Devices: It can be integrated into medical devices for patient monitoring, diagnostics, and treatment control.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the PIC16C74AT-20/L include:

1. PIC16F877A
2. PIC18F4520
3. ATmega328P