AT89C4051-12PC

Product Overview

Category: Microcontroller

Use: The AT89C4051-12PC is a high-performance, low-power CMOS 8-bit microcontroller designed for embedded applications. It is widely used in various electronic devices and systems that require control and processing capabilities.

Characteristics: - Low power consumption - High-performance CMOS technology - 8-bit architecture - On-chip flash memory for program storage - Multiple I/O ports for interfacing with external devices - Timer/counter modules for precise timing operations - Serial communication interface for data transfer - Interrupt capability for handling real-time events

Package: The AT89C4051-12PC is available in a DIP (Dual In-line Package) format, which consists of a rectangular plastic body with two parallel rows of pins extending from the bottom.

Essence: The essence of the AT89C4051-12PC lies in its ability to provide control and processing capabilities in a compact and efficient manner. It combines various features and peripherals required for embedded applications into a single chip.

Packaging/Quantity: The AT89C4051-12PC is typically packaged in tubes or trays, with each tube or tray containing a specific quantity of microcontrollers. The exact quantity may vary depending on the manufacturer's packaging specifications.

Specifications

• Operating Voltage: 2.7V to 6V
• Clock Frequency: Up to 12 MHz
• Flash Memory: 4 KB
• RAM Size: 128 bytes
• I/O Pins: 15
• Timers/Counters: 2
• Serial Communication Interface: Yes
• Interrupts: Yes
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT89C4051-12PC has a total of 20 pins, each serving a specific purpose. The pin configuration is as follows:

1. P1.0
2. P1.1
3. P1.2
4. P1.3
5. P1.4
6. P1.5
7. P3.0/RxD
8. P3.1/TxD
9. RESET
10. VCC
11. XTAL2
12. XTAL1
13. GND
14. P0.0/AD0
15. P0.1/AD1
16. P0.2/AD2
17. P0.3/AD3
18. P0.4/AD4
19. P0.5/AD5
20. P0.6/AD6

Functional Features

The AT89C4051-12PC offers several functional features that make it suitable for a wide range of applications. These include:

1. Flash Memory: The on-chip flash memory allows easy and flexible program storage, enabling firmware updates and modifications.
2. I/O Ports: The multiple I/O ports provide the ability to interface with external devices such as sensors, displays, and actuators.
3. Timers/Counters: The built-in timers/counters facilitate precise timing operations, making it suitable for applications requiring accurate timekeeping or event counting.
4. Serial Communication Interface: The serial communication interface enables data transfer with other devices, allowing seamless integration into larger systems.
5. Interrupt Capability: The interrupt feature allows the microcontroller to respond to real-time events promptly, enhancing its responsiveness in critical applications.

Advantages and Disadvantages

Advantages: - Low power consumption makes it suitable for battery-powered applications. - Compact size and integration of various peripherals reduce the overall system complexity. - High-performance CMOS technology ensures efficient execution of instructions. - Flash memory allows for easy firmware updates and modifications.

Disadvantages: - Limited program and data memory compared to more advanced microcontrollers. - Relatively low clock frequency may limit its performance in certain applications. - Lack of advanced features found in newer microcontroller models.

Working Principles

The AT89C4051-12PC operates based on the principles of a typical microcontroller. It executes instructions stored in its flash memory, interacts with external devices through I/O ports, performs timing operations using timers/counters, and communicates with other devices via the serial interface. The microcontroller responds to interrupts, allowing it to handle real-time events efficiently.

Detailed Application Field Plans

The AT89C4051-12PC finds applications in various fields, including but not limited to: - Home automation systems - Industrial control systems - Automotive electronics - Medical devices - Consumer electronics - Robotics - Internet of Things (IoT) devices

Its versatility and compact size make it suitable for both simple and complex embedded applications