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ATMEGA48A-AU Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
ATMEGA48A-AUMICROCHIP 100Yes

ATMEGA48A-AU** is a microcontroller from **Microchip Technology**.

The ATMEGA48A-AU is a microcontroller from Microchip Technology. Below are its specifications, descriptions, and features:

Specifications:

  • Manufacturer: Microchip
  • Core Processor: AVR
  • Core Size: 8-Bit
  • Speed: 20MHz
  • Flash Memory: 4KB (2K x 16)
  • SRAM: 512B
  • EEPROM: 256B
  • I/O Pins: 23
  • Operating Voltage: 1.8V - 5.5V
  • Package: 32-TQFP (7x7mm)
  • Temperature Range: -40°C to +85°C
  • Timers: 2 x 8-bit, 1 x 16-bit
  • ADC: 6-ch, 10-bit
  • PWM Channels: 4
  • Communication Interfaces: USART, SPI, I²C
  • Watchdog Timer: Yes
  • Oscillator Options: Internal 8MHz, External Crystal

Descriptions:

The ATMEGA48A-AU is a low-power, high-performance 8-bit AVR microcontroller based on the RISC architecture. It features 4KB of in-system programmable Flash memory, 512B SRAM, and 256B EEPROM. It operates at a maximum frequency of 20MHz and supports a wide voltage range (1.8V to 5.5V), making it suitable for battery-powered applications.

Features:

  • Advanced RISC Architecture (131 instructions, mostly single-clock cycle execution)
  • Non-Volatile Program and Data Memory (Self-programmable Flash, EEPROM)
  • Peripheral Features:
  • 6-channel 10-bit ADC
  • 4 PWM channels
  • Two 8-bit and one 16-bit timer/counter
  • USART, SPI, and I²C interfaces
  • Low Power Consumption:
  • Active mode: 0.2mA at 1MHz, 1.8V
  • Power-down mode: <0.1µA
  • Robust I/O Structure:
  • 23 programmable I/O lines
  • Internal pull-up resistors
  • Debugging Support:
  • On-chip debug interface
  • Wide Operating Voltage (1.8V - 5.5V) for flexible power supply options

This microcontroller is commonly used in embedded control applications, including industrial automation, consumer electronics, and IoT devices.

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