AT89C1051U-12PC

Product Overview

Category

The AT89C1051U-12PC 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 CMOS microcontroller
• Low-power consumption
• Wide operating voltage range
• Integrated flash memory for program storage
• Multiple I/O ports for interfacing with external devices

Package

The AT89C1051U-12PC is available in a 20-pin plastic dual inline package (PDIP).

Essence

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

Packaging/Quantity

The AT89C1051U-12PC is typically packaged in reels or tubes, with a quantity of 100 units per package.

Specifications

• Architecture: 8-bit
• CPU Speed: 12 MHz
• Program Memory Size: 1 KB
• RAM Size: 64 bytes
• Number of I/O Pins: 15
• Operating Voltage Range: 2.7V to 6V
• Operating Temperature Range: -40°C to +85°C
• Data Sheet: Link to Data Sheet

Detailed Pin Configuration

The AT89C1051U-12PC has a total of 20 pins, each serving a specific purpose. The pin configuration is as follows:

1. P1.0 (Pin 1) - Port 1, Bit 0
2. P1.1 (Pin 2) - Port 1, Bit 1
3. P1.2 (Pin 3) - Port 1, Bit 2
4. P1.3 (Pin 4) - Port 1, Bit 3
5. P1.4 (Pin 5) - Port 1, Bit 4
6. P1.5 (Pin 6) - Port 1, Bit 5
7. P1.6 (Pin 7) - Port 1, Bit 6
8. P1.7 (Pin 8) - Port 1, Bit 7
9. RST (Pin 9) - Reset Pin
10. VCC (Pin 10) - Supply Voltage
11. P3.0 (Pin 11) - Port 3, Bit 0
12. P3.1 (Pin 12) - Port 3, Bit 1
13. P3.2 (Pin 13) - Port 3, Bit 2
14. P3.3 (Pin 14) - Port 3, Bit 3
15. P3.4 (Pin 15) - Port 3, Bit 4
16. P3.5 (Pin 16) - Port 3, Bit 5
17. P3.6 (Pin 17) - Port 3, Bit 6
18. P3.7 (Pin 18) - Port 3, Bit 7
19. XTAL1 (Pin 19) - Crystal Oscillator Input
20. XTAL2 (Pin 20) - Crystal Oscillator Output

Functional Features

The AT89C1051U-12PC offers several functional features that enhance its usability and performance:

1. Flash Memory: The integrated flash memory allows for easy reprogramming of the microcontroller, enabling flexibility in application development.
2. I/O Ports: The multiple I/O ports provide the ability to interface with external devices, expanding the microcontroller's capabilities.
3. Low-Power Consumption: The microcontroller is designed to operate efficiently with low power consumption, making it suitable for battery-powered applications.
4. Wide Operating Voltage Range: With an operating voltage range of 2.7V to 6V, the microcontroller can be used in various electronic systems.

Advantages and Disadvantages

Advantages

• Compact size and low-power consumption make it suitable for portable and battery-powered devices.
• Integrated flash memory allows for easy reprogramming and flexibility in application development.
• Multiple I/O ports provide versatility in interfacing with external devices.

Disadvantages

• Limited program memory size (1 KB) may restrict the complexity of applications that can be implemented.
• Limited RAM size (64 bytes) may impose constraints on data storage and manipulation.

Working Principles

The AT89C1051U-12PC operates based on the principles of a typical microcontroller. It executes instructions stored in its flash memory, processes data using its CPU, and communicates with external devices through its I/O ports. The microcontroller follows a fetch-decode-execute cycle to perform tasks as per