規格
| 屬性 | 價值 |
| Package / Case | Tube |
| Series | AVR® ATmega |
| Part Status | Active |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 16MHz |
| Connectivity | I²C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 23 |
| Program Memory Size | 8KB (4K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 512 x 8 |
| RAM Size | 1K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
| Data Converters | A/D 6x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Through Hole |
概述
Description
The ATMEGA8A-PU is an 8-bit microcontroller from Atmel's AVR family, known for its high performance and low power consumption. Encased in a 28-pin Dual In-line Package (DIP), it is designed for embedded systems and applications requiring efficient processing.
Key features include:
- CPU: 8-bit AVR RISC architecture
- Memory: 8KB of Flash, 1KB SRAM, and 512 bytes EEPROM
- Clock Speed: Operates at up to 16MHz
- I/O Ports: 23 programmable I/O lines
- Timers: Three timers (two 8-bit and one 16-bit)
- Analog to Digital Converter (ADC): 6-channel, 10-bit resolution
- Communication Interfaces: Supports USART, SPI, and I2C (TWI)
- Power Consumption: Features power-saving modes
- Operating Voltage: 2.7V to 5.5V
The microcontroller is suitable for projects requiring moderate processing power, such as sensor interfacing, control systems, and simple robotics. Its compatibility with the Arduino development environment makes it popular among hobbyists and engineers alike.
Key features include:
- CPU: 8-bit AVR RISC architecture
- Memory: 8KB of Flash, 1KB SRAM, and 512 bytes EEPROM
- Clock Speed: Operates at up to 16MHz
- I/O Ports: 23 programmable I/O lines
- Timers: Three timers (two 8-bit and one 16-bit)
- Analog to Digital Converter (ADC): 6-channel, 10-bit resolution
- Communication Interfaces: Supports USART, SPI, and I2C (TWI)
- Power Consumption: Features power-saving modes
- Operating Voltage: 2.7V to 5.5V
The microcontroller is suitable for projects requiring moderate processing power, such as sensor interfacing, control systems, and simple robotics. Its compatibility with the Arduino development environment makes it popular among hobbyists and engineers alike.
Equivalent
The ATMEGA8A-PU is an 8-bit AVR microcontroller by Microchip Technology. Equivalent products include:
1. ATMEGA8-16PU: A similar 8-bit AVR microcontroller with minor variations in specs.
2. ATMEGA88PA-PU: Offers enhancements and more features with similar pinout.
3. ATMEGA328P-PU: More memory and features, commonly used in Arduino boards.
4. ATtiny85: Smaller, with fewer I/O pins, suitable for simpler projects.
These alternatives vary in memory, features, and power consumption, so selection depends on project requirements.
1. ATMEGA8-16PU: A similar 8-bit AVR microcontroller with minor variations in specs.
2. ATMEGA88PA-PU: Offers enhancements and more features with similar pinout.
3. ATMEGA328P-PU: More memory and features, commonly used in Arduino boards.
4. ATtiny85: Smaller, with fewer I/O pins, suitable for simpler projects.
These alternatives vary in memory, features, and power consumption, so selection depends on project requirements.
Features
The ATMEGA8A-PU is an 8-bit microcontroller from Microchip Technology’s AVR family. Key features include:
1. Core: AVR-based with RISC architecture.
2. Speed: Up to 16 MHz clock frequency.
3. Memory: 8KB Flash, 1KB SRAM, 512 Bytes EEPROM.
4. I/O Ports: 23 general-purpose I/O lines.
5. Timers: Two 8-bit and one 16-bit timer/counter.
6. ADC: Six-channel, 10-bit Analog to Digital Converter.
7. Communication Interfaces: Supports USART, SPI, and I2C (TWI).
8. Power Consumption: Offers various power-saving modes.
9. Voltage Range: Operates from 2.7V to 5.5V.
10. Package: 28-pin Dual Inline Package (DIP).
11. Interrupts: Internal and external interrupt sources.
12. PWM: Pulse Width Modulation support.
13. Programming: In-System Programmable via SPI.
14. Watchdog Timer: For enhanced reliability.
15. Temperature Range: Operates across a wide temperature range.
These features make the ATMEGA8A-PU suitable for applications requiring low power consumption, precise timing, and versatile interfacing capabilities.
1. Core: AVR-based with RISC architecture.
2. Speed: Up to 16 MHz clock frequency.
3. Memory: 8KB Flash, 1KB SRAM, 512 Bytes EEPROM.
4. I/O Ports: 23 general-purpose I/O lines.
5. Timers: Two 8-bit and one 16-bit timer/counter.
6. ADC: Six-channel, 10-bit Analog to Digital Converter.
7. Communication Interfaces: Supports USART, SPI, and I2C (TWI).
8. Power Consumption: Offers various power-saving modes.
9. Voltage Range: Operates from 2.7V to 5.5V.
10. Package: 28-pin Dual Inline Package (DIP).
11. Interrupts: Internal and external interrupt sources.
12. PWM: Pulse Width Modulation support.
13. Programming: In-System Programmable via SPI.
14. Watchdog Timer: For enhanced reliability.
15. Temperature Range: Operates across a wide temperature range.
These features make the ATMEGA8A-PU suitable for applications requiring low power consumption, precise timing, and versatile interfacing capabilities.
Pinout
The ATmega8A-PU is an 8-bit microcontroller from the AVR family by Microchip Technology. It typically comes in a 28-pin Dual Inline Package (DIP). Key functions and pin configurations include:
1. VCC: Digital supply voltage.
2. GND: Ground.
3. Port B (PB7-PB0): 8-bit bi-directional I/O port with internal pull-up resistors.
4. Port C (PC6-PC0): 7-bit bi-directional I/O port with internal pull-up resistors.
5. Port D (PD7-PD0): 8-bit bi-directional I/O port with internal pull-up resistors.
6. RESET: Active low reset input.
7. XTAL1/XTAL2: Input/Output for the inverting oscillator amplifier.
8. AVCC: Supply voltage pin for the A/D Converter.
9. AREF: Reference voltage for the A/D Converter.
10. ADC: 6-channel 10-bit ADC (on Port C).
The ATmega8A-PU supports a wide range of applications, offering features like timers, PWM, UART, SPI, and I2C interfaces, making it versatile for embedded system projects.
1. VCC: Digital supply voltage.
2. GND: Ground.
3. Port B (PB7-PB0): 8-bit bi-directional I/O port with internal pull-up resistors.
4. Port C (PC6-PC0): 7-bit bi-directional I/O port with internal pull-up resistors.
5. Port D (PD7-PD0): 8-bit bi-directional I/O port with internal pull-up resistors.
6. RESET: Active low reset input.
7. XTAL1/XTAL2: Input/Output for the inverting oscillator amplifier.
8. AVCC: Supply voltage pin for the A/D Converter.
9. AREF: Reference voltage for the A/D Converter.
10. ADC: 6-channel 10-bit ADC (on Port C).
The ATmega8A-PU supports a wide range of applications, offering features like timers, PWM, UART, SPI, and I2C interfaces, making it versatile for embedded system projects.
Manufacturer
The ATMEGA8A-PU is manufactured by Microchip Technology Inc. Microchip is a public American company that specializes in the production of microcontroller, mixed-signal, analog, and Flash-IP integrated circuits. It serves a wide range of industries, including automotive, aerospace, communication, consumer electronics, and industrial. The company is known for providing solutions that enable low-risk product development, lower total system cost, and faster time to market for thousands of diverse applications worldwide.
Application
The ATMEGA8A-PU is a versatile microcontroller used in various applications due to its efficient processing capabilities, low power consumption, and extensive peripheral support. Common application areas include:
1. Embedded Systems: Used in consumer electronics for control operations.
2. Robotics: Controls motor functions and sensor integrations.
3. IoT Devices: Acts as a core processing unit for connected devices.
4. Automotive: Utilized for dashboard instrumentation and control systems.
5. Industrial Automation: Implements process controls and monitoring systems.
6. Home Automation: Manages sensors and actuators for smart home devices.
7. Educational Projects: Ideal for learning programming and electronics.
These applications leverage the microcontroller's flexibility, affordability, and rich set of features.
1. Embedded Systems: Used in consumer electronics for control operations.
2. Robotics: Controls motor functions and sensor integrations.
3. IoT Devices: Acts as a core processing unit for connected devices.
4. Automotive: Utilized for dashboard instrumentation and control systems.
5. Industrial Automation: Implements process controls and monitoring systems.
6. Home Automation: Manages sensors and actuators for smart home devices.
7. Educational Projects: Ideal for learning programming and electronics.
These applications leverage the microcontroller's flexibility, affordability, and rich set of features.
Package
The ATMEGA8A-PU is a microcontroller from Atmel (now part of Microchip Technology) and comes in a Dual In-line Package (DIP) with 28 pins. This package type is suitable for through-hole mounting, making it ideal for prototyping and easy handling in breadboard applications.
