AT80251G2D-SLRUM

Product Overview

• Category: Microcontroller
• Use: Embedded systems, industrial automation, consumer electronics
• Characteristics: High-performance, low-power consumption, versatile
• Package: Surface Mount Technology (SMT)
• Essence: Advanced microcontroller with integrated peripherals
• Packaging/Quantity: Tape and reel packaging, 250 units per reel

Specifications

• Architecture: 8-bit
• Clock Speed: 20 MHz
• Program Memory Size: 32 KB
• RAM Size: 2 KB
• Number of I/O Pins: 32
• Operating Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Communication Interfaces: UART, SPI, I2C
• Timers/Counters: 3 x 16-bit timers/counters
• Analog-to-Digital Converter (ADC): 8 channels, 10-bit resolution
• PWM Channels: 4
• Interrupt Sources: External and internal
• Package Type: 44-pin Quad Flat Package (QFP)

Detailed Pin Configuration

The AT80251G2D-SLRUM microcontroller has a total of 44 pins. The pin configuration is as follows:

1. VCC
2. GND
3. P0.0
4. P0.1
5. P0.2
6. P0.3
7. P0.4
8. P0.5
9. P0.6
10. P0.7
11. P1.0
12. P1.1
13. P1.2
14. P1.3
15. P1.4
16. P1.5
17. P1.6
18. P1.7
19. P2.0
20. P2.1
21. P2.2
22. P2.3
23. P2.4
24. P2.5
25. P2.6
26. P2.7
27. P3.0
28. P3.1
29. P3.2
30. P3.3
31. P3.4
32. P3.5
33. P3.6
34. P3.7
35. XTAL1
36. XTAL2
37. RESET
38. ALE/PROG
39. PSEN
40. EA/VPP
41. P2.6/ALE
42. P2.7/AD0
43. AVCC
44. AGND

Functional Features

• High-performance 8-bit microcontroller with a clock speed of 20 MHz.
• Versatile I/O capabilities with 32 pins for interfacing with external devices.
• Integrated communication interfaces (UART, SPI, I2C) for seamless data transfer.
• Multiple timers/counters for precise timing and event management.
• Analog-to-Digital Converter (ADC) with 8 channels and 10-bit resolution for accurate analog measurements.
• Pulse Width Modulation (PWM) channels for generating variable-width pulses.
• Support for external and internal interrupts for efficient event handling.

Advantages and Disadvantages

Advantages: - High-performance and low-power consumption make it suitable for various applications. - Versatile I/O capabilities enable easy integration with external devices. - Integrated communication interfaces simplify data transfer between the microcontroller and other components. - Multiple timers/counters provide precise timing control. - Analog-to-Digital Converter (ADC) allows accurate analog measurements. - Pulse Width Modulation (PWM) channels enable flexible control of output signals.

Disadvantages: - Limited program memory size (32 KB) may restrict the complexity of applications. - Limited RAM size (2 KB) may limit the amount of data that can be stored and processed. - 8-bit architecture may not be suitable for certain computationally intensive tasks.

Working Principles

The AT80251G2D-SLRUM microcontroller operates based on the principles of a typical 8-bit microcontroller. It executes instructions stored in its program memory, interacts with external devices through its I/O pins, and utilizes integrated peripherals to perform various tasks. The clock speed determines the rate at which instructions are executed, while the operating voltage ensures stable operation within the specified range. Interrupts allow the microcontroller to respond to external events promptly.

Detailed Application Field Plans

The AT80251G2D-SLRUM microcontroller finds applications in various fields, including:

1. Embedded Systems: Used as the core controller in embedded systems for industrial automation, home automation, and automotive