AT89LP51RC2-20AAU

Product Overview

Category

The AT89LP51RC2-20AAU 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 microcontroller
• Low-power consumption
• Enhanced features for efficient control and processing
• Wide operating voltage range
• Integrated peripherals for versatile application development

Package

The AT89LP51RC2-20AAU is available in a compact and durable package, suitable for surface mount technology (SMT) assembly.

Essence

The essence of this microcontroller lies in its ability to provide reliable and efficient control and processing capabilities for a wide range of electronic applications.

Packaging/Quantity

The AT89LP51RC2-20AAU is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Architecture: 8-bit
• Clock Speed: 20 MHz
• Flash Memory: 32 KB
• RAM: 2 KB
• Operating Voltage Range: 2.7V to 5.5V
• Digital I/O Pins: 32
• Analog Input Channels: 8
• Timers/Counters: 3
• Serial Communication Interfaces: UART, SPI, I2C
• Interrupt Sources: 6
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT89LP51RC2-20AAU has a total of 44 pins, each serving a specific purpose. The pin configuration is as follows:

1. P0.0
2. P0.1
3. P0.2
4. P0.3
5. P0.4
6. P0.5
7. P0.6
8. P0.7
9. RST
10. P1.0
11. P1.1
12. P1.2
13. P1.3
14. P1.4
15. P1.5
16. P1.6
17. P1.7
18. XTAL1
19. XTAL2
20. AVSS
21. VCC
22. P2.0
23. P2.1
24. P2.2
25. P2.3
26. P2.4
27. P2.5
28. P2.6
29. P2.7
30. ALE/PROG
31. PSEN
32. EA/VPP
33. P3.0/RXD
34. P3.1/TXD
35. P3.2/INT0
36. P3.3/INT1
37. P3.4/T0
38. P3.5/T1
39. P3.6/WR
40. P3.7/RD
41. AVCC
42. AGND
43. ADC0
44. ADC1

Functional Features

The AT89LP51RC2-20AAU offers several functional features that enhance its usability and performance:

1. Enhanced CPU: The microcontroller incorporates an 8-bit CPU with a wide range of instructions, enabling efficient control and processing.

2. Flash Memory: The built-in flash memory allows for easy program storage and modification, facilitating firmware updates.

3. Integrated Peripherals: Various peripherals such as UART, SPI, and I2C interfaces enable seamless communication with external devices.

4. Timers/Counters: The microcontroller includes three timers/counters, providing precise timing and event counting capabilities.

5. Interrupt System: The interrupt system allows for efficient handling of external events, ensuring timely response and task execution.

Advantages and Disadvantages

Advantages

• High-performance microcontroller with a clock speed of 20 MHz.
• Low-power consumption, making it suitable for battery-powered applications.
• Wide operating voltage range enables compatibility with various power sources.
• Integrated peripherals simplify the design and implementation of complex applications.
• Ample flash memory and RAM for program storage and data manipulation.

Disadvantages

• Limited analog input channels (8) may restrict certain applications requiring extensive analog interfacing.
• Relatively small package size may pose challenges in densely populated PCB designs.

Working Principles

The AT89LP51RC2-20AAU operates based on the principles of digital logic and microcontroller architecture. It executes instructions stored in its flash memory, manipulating data and controlling external devices through its integrated peripherals. The CPU fetches instructions, decodes them, and performs the necessary operations to accomplish the desired tasks.

Detailed Application Field Plans

The AT89LP51RC2