AT89C2051-24PU

Product Overview

Category

The AT89C2051-24PU belongs to the category of microcontrollers.

Use

It is commonly used in embedded systems and electronic projects that require a compact and versatile microcontroller.

Characteristics

• Low-power, high-performance 8-bit microcontroller
• 2KB of Flash memory for program storage
• 128 bytes of RAM for data storage
• 15 programmable input/output (I/O) pins
• Operating voltage range: 2.7V to 6V
• Clock frequency: 24 MHz
• Built-in UART for serial communication

Package

The AT89C2051-24PU comes in a DIP-20 package, which stands for Dual In-line Package with 20 pins.

Essence

The essence of the AT89C2051-24PU lies in its ability to provide a cost-effective solution for small-scale embedded systems and electronic projects.

Packaging/Quantity

This microcontroller is typically sold in tubes or trays, with each containing a quantity of 25 units.

Specifications

• Architecture: 8-bit
• Program Memory Size: 2KB
• CPU Speed: 24 MHz
• Data RAM Size: 128 bytes
• Number of I/O Pins: 15
• Operating Voltage Range: 2.7V to 6V
• Communication Interfaces: UART
• Timers/Counters: 2

Detailed Pin Configuration

1. VCC - Power supply voltage
2. GND - Ground reference
3. Port 1.0 (P1.0) - General-purpose I/O pin
4. Port 1.1 (P1.1) - General-purpose I/O pin
5. Port 1.2 (P1.2) - General-purpose I/O pin
6. Port 1.3 (P1.3) - General-purpose I/O pin
7. Port 1.4 (P1.4) - General-purpose I/O pin
8. Port 1.5 (P1.5) - General-purpose I/O pin
9. RST - Reset input
10. Port 2.0 (P2.0) - General-purpose I/O pin
11. Port 2.1 (P2.1) - General-purpose I/O pin
12. Port 2.2 (P2.2) - General-purpose I/O pin
13. Port 2.3 (P2.3) - General-purpose I/O pin
14. Port 2.4 (P2.4) - General-purpose I/O pin
15. Port 2.5 (P2.5) - General-purpose I/O pin
16. ALE/PROG - Address Latch Enable/Program pulse input
17. PSEN - Program Store Enable
18. EA/VPP - External Access Enable/Voltage Programming Pulse
19. XTAL1 - Crystal oscillator input
20. XTAL2 - Crystal oscillator output

Functional Features

• Flash memory for program storage
• RAM for data storage
• I/O pins for interfacing with external devices
• Built-in UART for serial communication
• Timers/counters for time-sensitive operations
• Low-power consumption for energy efficiency
• Wide operating voltage range for flexibility

Advantages and Disadvantages

Advantages

• Cost-effective solution for small-scale projects
• Versatile and compact design
• Low-power consumption
• Ample program and data storage capacity
• Easy to interface with external devices

Disadvantages

• Limited number of I/O pins
• Relatively low clock frequency compared to some other microcontrollers
• Lack of advanced features found in more powerful microcontrollers

Working Principles

The AT89C2051-24PU operates based on the principles of a typical microcontroller. It executes instructions stored in its Flash memory, processes data stored in RAM, and communicates with external devices through its I/O pins. The built-in UART enables serial communication, allowing the microcontroller to exchange data with other devices. The timers/counters facilitate time-sensitive operations, such as generating accurate delays or measuring external events.

Detailed Application Field Plans

The AT89C2051-24PU finds applications in various fields, including but not limited to: - Home automation systems - Industrial control systems - Robotics - Automotive electronics - Medical devices - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the AT89C2051-24PU include: - AT89S52 - PIC16F877A - STM32F103C8T6 - MSP430G2553 - Arduino Uno

These alternatives provide different features, performance levels, and development ecosystems, allowing