Overview
The ATMEGA48-20AUR is a high-performance, low-power 8-bit microcontroller from Microchip Technology, part of the Atmel AVR family. This microcontroller is designed with an advanced RISC architecture, offering high code efficiency and throughput. It is widely used in various embedded systems due to its robust feature set and versatility.
Key Specifications
| Specification | Details |
|---|---|
| Flash Program Memory | 4 Kbytes (in-system self-programmable) |
| EEPROM | 256 bytes |
| Internal SRAM | 512 bytes |
| Operating Voltage | 1.8V - 5.5V |
| Temperature Range | -40°C to 85°C |
| Speed Grade | Up to 20MHz at 4.5V - 5.5V |
| Package Type | 32-lead TQFP |
| I/O Lines | 23 programmable I/O lines |
| Timer/Counters | Two 8-bit and one 16-bit timer/counters |
| ADC Channels | 8-channel 10-bit ADC |
| Serial Interfaces | USART, SPI, I2C (Philips compatible) |
Key Features
- Advanced RISC architecture with 131 powerful instructions, most executing in a single clock cycle
- 32 × 8 general purpose working registers and fully static operation
- High endurance non-volatile memory segments with 10,000 flash and 100,000 EEPROM write/erase cycles
- True read-while-write operation and programming lock for software security
- Support for QTouch library, including capacitive touch buttons, sliders, and wheels
- Peripheral features include PWM channels, real-time counter, and programmable watchdog timer
- DebugWIRE on-chip debug system and power-on reset with programmable brown-out detection
- Five sleep modes: Idle, ADC noise reduction, power-save, power-down, and standby
Applications
The ATMEGA48-20AUR is suitable for a wide range of applications, including:
- Embedded systems requiring low power consumption and high performance.
- Industrial control systems, such as motor control and automation.
- Consumer electronics, including appliances and gadgets.
- Automotive systems, such as dashboard controls and sensors.
- Medical devices and diagnostic equipment.
Q & A
- What is the flash program memory capacity of the ATMEGA48-20AUR?
The ATMEGA48-20AUR has 4 Kbytes of in-system self-programmable flash program memory.
- What is the operating voltage range of the ATMEGA48-20AUR?
The operating voltage range is 1.8V to 5.5V.
- What types of serial interfaces does the ATMEGA48-20AUR support?
The ATMEGA48-20AUR supports USART, SPI, and I2C (Philips compatible) serial interfaces.
- How many I/O lines does the ATMEGA48-20AUR have?
The ATMEGA48-20AUR has 23 programmable I/O lines.
- What is the maximum speed grade of the ATMEGA48-20AUR?
The maximum speed grade is up to 20MHz at 4.5V - 5.5V.
- Does the ATMEGA48-20AUR support capacitive touch functionality?
- What are the sleep modes available on the ATMEGA48-20AUR?
The ATMEGA48-20AUR has five sleep modes: Idle, ADC noise reduction, power-save, power-down, and standby.
- What is the temperature range for the ATMEGA48-20AUR?
- Does the ATMEGA48-20AUR have an on-chip debug system?
- What is the package type of the ATMEGA48-20AUR?
