AT89C1051-24SI

Product Overview

Category: Microcontroller
Use: Embedded Systems
Characteristics: Low-power, high-performance 8-bit microcontroller
Package: 20-pin Small Outline Integrated Circuit (SOIC)
Essence: AT89C1051-24SI is a versatile microcontroller designed for various embedded applications.
Packaging/Quantity: Available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Architecture: 8-bit
• Clock Speed: 24 MHz
• Program Memory Size: 1 KB
• RAM Size: 64 Bytes
• Number of I/O Pins: 15
• Timers/Counters: 2
• Serial Communication Interface: UART
• Operating Voltage Range: 2.7V to 6V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT89C1051-24SI microcontroller has a total of 20 pins, each serving a specific purpose. The pin configuration is as follows:

1. P1.0 (Pin 1): General Purpose I/O Pin
2. P1.1 (Pin 2): General Purpose I/O Pin
3. P1.2 (Pin 3): General Purpose I/O Pin
4. P1.3 (Pin 4): General Purpose I/O Pin
5. P1.4 (Pin 5): General Purpose I/O Pin
6. P1.5 (Pin 6): General Purpose I/O Pin
7. P1.6 (Pin 7): General Purpose I/O Pin
8. P1.7 (Pin 8): General Purpose I/O Pin
9. RST (Pin 9): Reset Pin
10. XTAL1 (Pin 10): Crystal Oscillator Input
11. XTAL2 (Pin 11): Crystal Oscillator Output
12. GND (Pin 12): Ground
13. P3.0 (Pin 13): General Purpose I/O Pin
14. P3.1 (Pin 14): General Purpose I/O Pin
15. P3.2 (Pin 15): General Purpose I/O Pin
16. P3.3 (Pin 16): General Purpose I/O Pin
17. VCC (Pin 17): Supply Voltage
18. PSEN (Pin 18): Program Store Enable
19. ALE/PROG (Pin 19): Address Latch Enable/Program Pulse
20. EA/VPP (Pin 20): External Access Enable/Voltage Programming Pin

Functional Features

• Low-power consumption for energy-efficient applications.
• High-performance 8-bit microcontroller suitable for various embedded systems.
• Two timers/counters for precise timing operations.
• UART interface for serial communication.
• Wide operating voltage range allows flexibility in power supply options.
• Small form factor package for space-constrained designs.

Advantages and Disadvantages

Advantages: - Low-power consumption extends battery life in portable devices. - Versatile microcontroller suitable for a wide range of embedded applications. - Compact package size enables integration into small form factor designs. - UART interface simplifies serial communication implementation.

Disadvantages: - Limited program memory size may restrict the complexity of applications. - Limited RAM size may limit the amount of data that can be stored during runtime.

Working Principles

The AT89C1051-24SI microcontroller operates based on an 8-bit architecture. It executes instructions stored in its program memory, interacts with external devices through its I/O pins, and utilizes timers/counters for precise timing operations. The microcontroller can communicate with other devices using the UART interface, enabling serial communication.

Detailed Application Field Plans

The AT89C1051-24SI microcontroller finds applications in various fields, including but not limited to: - Home automation systems - Industrial control systems - Automotive electronics - Medical devices - Consumer electronics

Detailed and Complete Alternative Models

• AT89C2051-24SI: Similar microcontroller with increased program memory size (2 KB).
• AT89C1051-12PI: Microcontroller variant with a lower clock speed (12 MHz).
• AT89S52-24PU: 8-bit microcontroller with larger program memory (8 KB) and more I/O pins (32).

These alternative models offer different specifications and features, allowing designers to choose the most suitable microcontroller for their specific application requirements.

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