規格
| 屬性 | 價值 |
| Package / Case | Tube |
| Series | AVR® ATmega |
| Part Status | Active |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | I²C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 23 |
| Program Memory Size | 16KB (8K 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 ATmega168-20PU is an 8-bit microcontroller from Microchip’s AVR family, based on RISC architecture. Key features:
- Clock Speed: Up to 20 MHz (indicated by "20" in the part number).
- Flash Memory: 16 KB for program storage.
- SRAM: 1 KB and EEPROM: 512 bytes for data.
- I/O Pins: 23 programmable GPIOs.
- Peripherals: Timers, USART, SPI, I²C, and 10-bit ADC.
- Voltage Range: 1.8V–5.5V, suitable for low-power applications.
- Package: 28-pin PDIP ("PU" suffix), ideal for prototyping.
Commonly used in embedded systems, DIY projects (e.g., Arduino boards), and industrial controls due to its balance of performance, power efficiency, and ease of use.
- Clock Speed: Up to 20 MHz (indicated by "20" in the part number).
- Flash Memory: 16 KB for program storage.
- SRAM: 1 KB and EEPROM: 512 bytes for data.
- I/O Pins: 23 programmable GPIOs.
- Peripherals: Timers, USART, SPI, I²C, and 10-bit ADC.
- Voltage Range: 1.8V–5.5V, suitable for low-power applications.
- Package: 28-pin PDIP ("PU" suffix), ideal for prototyping.
Commonly used in embedded systems, DIY projects (e.g., Arduino boards), and industrial controls due to its balance of performance, power efficiency, and ease of use.
Equivalent
Equivalent products to the ATMEGA168-20PU include:
- ATMEGA168-20AU (TQFP package)
- ATMEGA168P-20PU (enhanced power efficiency)
- ATMEGA168V-10PU (lower voltage, 10MHz)
- ATMEGA328P-PU (higher memory, drop-in replacement in many cases)
- ATMEGA88-20PU (smaller flash but pin-compatible).
Check datasheets for exact compatibility in your application.
- ATMEGA168-20AU (TQFP package)
- ATMEGA168P-20PU (enhanced power efficiency)
- ATMEGA168V-10PU (lower voltage, 10MHz)
- ATMEGA328P-PU (higher memory, drop-in replacement in many cases)
- ATMEGA88-20PU (smaller flash but pin-compatible).
Check datasheets for exact compatibility in your application.
Features
The ATmega168-20PU is an 8-bit AVR microcontroller with the following key features:
- Core: 8-bit AVR, up to 20 MHz clock speed (20PU variant).
- Flash Memory: 16 KB (with bootloader support).
- SRAM: 1 KB.
- EEPROM: 512 bytes.
- I/O Pins: 23 programmable (6 PWM, 8 ADC channels).
- Peripherals: USART, SPI, I²C, 8/16-bit timers, watchdog timer.
- ADC: 10-bit, 6-channel.
- Operating Voltage: 1.8V–5.5V.
- Package: 28-pin PDIP (DIP).
- Power Efficiency: Multiple sleep modes.
Ideal for embedded systems, DIY projects, and low-power applications.
- Core: 8-bit AVR, up to 20 MHz clock speed (20PU variant).
- Flash Memory: 16 KB (with bootloader support).
- SRAM: 1 KB.
- EEPROM: 512 bytes.
- I/O Pins: 23 programmable (6 PWM, 8 ADC channels).
- Peripherals: USART, SPI, I²C, 8/16-bit timers, watchdog timer.
- ADC: 10-bit, 6-channel.
- Operating Voltage: 1.8V–5.5V.
- Package: 28-pin PDIP (DIP).
- Power Efficiency: Multiple sleep modes.
Ideal for embedded systems, DIY projects, and low-power applications.
Pinout
The ATMEGA168-20PU is a 28-pin DIP microcontroller from Atmel (now Microchip).
Pin Count: 28 pins (PDIP package).
Key Functions:
- I/O Ports: 23 programmable I/O pins (Ports B, C, D).
- Communication: USART, SPI, and I²C (TWI).
- Analog: 6-channel 10-bit ADC.
- Timers: Three timers (two 8-bit, one 16-bit).
- Clock Speed: Up to 20 MHz (20PU variant).
- Memory: 16 KB Flash, 1 KB SRAM, 512 B EEPROM.
- Power: Operates at 1.8–5.5V.
Commonly used in Arduino boards (e.g., older Nano models).
Pin Count: 28 pins (PDIP package).
Key Functions:
- I/O Ports: 23 programmable I/O pins (Ports B, C, D).
- Communication: USART, SPI, and I²C (TWI).
- Analog: 6-channel 10-bit ADC.
- Timers: Three timers (two 8-bit, one 16-bit).
- Clock Speed: Up to 20 MHz (20PU variant).
- Memory: 16 KB Flash, 1 KB SRAM, 512 B EEPROM.
- Power: Operates at 1.8–5.5V.
Commonly used in Arduino boards (e.g., older Nano models).
Application
The ATmega168-20PU is an 8-bit microcontroller from Microchip (formerly Atmel) with applications in:
- Embedded Systems: IoT devices, sensors, and automation.
- Consumer Electronics: Remote controls, toys, and small appliances.
- Industrial Control: Motor control, monitoring systems, and instrumentation.
- DIY & Hobby Projects: Arduino-compatible boards (e.g., Arduino Pro Mini).
- Automotive: Basic control modules and accessories.
It features 16KB Flash, 1KB RAM, 512B EEPROM, and operates at 20MHz, making it suitable for low-power, cost-sensitive designs.
- Embedded Systems: IoT devices, sensors, and automation.
- Consumer Electronics: Remote controls, toys, and small appliances.
- Industrial Control: Motor control, monitoring systems, and instrumentation.
- DIY & Hobby Projects: Arduino-compatible boards (e.g., Arduino Pro Mini).
- Automotive: Basic control modules and accessories.
It features 16KB Flash, 1KB RAM, 512B EEPROM, and operates at 20MHz, making it suitable for low-power, cost-sensitive designs.
Package
The ATMEGA168-20PU comes in a PDIP (Plastic Dual In-line Package). It has 28 pins, a 0.6-inch width, and is through-hole mountable, making it suitable for prototyping and breadboarding. The "-20" indicates a 20 MHz max clock speed, and "PU" denotes the industrial temperature range (-40°C to +85°C).
