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ATMEGA48-20AU The ATMEGA48-20AU is an 8-bit AVR microcontroller from Atmel with 4KB Flash, 512B RAM, and 256B EEPROM. It operates at up to 20MHz and comes in a 32-TQFP package.
Mfr Part #:

ATMEGA48-20AU

Available from 3 distributors
Mfr Name: Atmel
Atmel
The ATMEGA48-20AU is an 8-bit AVR microcontroller from Atmel with 4KB Flash, 512B RAM, and 256B EEPROM. It operates at up to 20MHz and comes in a 32-TQFP package.
✓ Total Stock: 33,631 pcs

ATMEGA48-20AU Available from 3 distributors

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Romaks Technologies ✓
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30,133 pcs
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Optech Co.,Limited ✓
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3,489 pcs
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Rayichip ✓
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ATMEGA48-20AU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Data Converters
EEPROM Size
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Voltage
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ATMEGA48-20AU Description

Short technical summary and product information.

The Atmel ATmega48-20AU is a low-power, high-performance 8-bit AVR microcontroller based on the enhanced RISC architecture. It features 4KB of in-system self-programmable Flash memory, 512B of SRAM, and 256B of EEPROM with high endurance (10,000 write/erase cycles for Flash and 100,000 for EEPROM). The device operates at a maximum speed of 20MHz, delivering up to 20 MIPS throughput.

 

This microcontroller includes a rich set of peripherals: two 8-bit and one 16-bit timer/counters, six PWM channels, an 8-channel 10-bit ADC, and multiple serial interfaces including I²C, SPI, and UART/USART. It also features a brown-out detect/reset, power-on reset, and a watchdog timer. The operating voltage range is 2.7V to 5.5V, and it is rated for an industrial temperature range of -40°C to +85°C.

 

The device is supplied in a 32-TQFP (7x7mm) surface-mount package with 23 general-purpose I/O lines. It is suitable for a wide range of embedded control applications requiring low power consumption and high code efficiency.

ATMEGA48-20AU Quick Information

Product Type: Microcontroller
Series: ATmega48/V/88/V/168/V
Canonical Name: Atmel ATmega48-20AU 8-bit AVR Microcontroller
Subcategory: AVR Microcontroller

ATMEGA48-20AU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ATMEGA48-20AU Features

  • 8-bit AVR RISC architecture with 131 instructions.
  • 4KB Flash, 512B SRAM, and 256B EEPROM memory.
  • Operates at up to 20MHz with 20 MIPS throughput.
  • Includes 8-channel 10-bit ADC and 6 PWM channels.
  • Supports I²C, SPI, and UART/USART serial interfaces.

ATMEGA48-20AU Applications

  • Ideal for embedded control and automation systems.
  • Used in sensor interfacing and data acquisition.
  • Suitable for motor control and PWM applications.
  • Applicable in low-power battery-operated devices.
  • Used in industrial and consumer electronics designs.

ATMEGA48-20AU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATMEGA48-20AU?

The operating voltage range is 2.7V to 5.5V.

What is the operating temperature range of the ATMEGA48-20AU?

The operating temperature range is -40°C to +85°C.

What package does the ATMEGA48-20AU come in?

It comes in a 32-TQFP (7x7mm) surface-mount package.

How much Flash memory does the ATMEGA48-20AU have?

It has 4KB of Flash program memory.

What is the maximum clock speed of the ATMEGA48-20AU?

The maximum clock speed is 20MHz.

How many I/O pins does the ATMEGA48-20AU have?

It has 23 I/O pins.

What serial communication interfaces does the ATMEGA48-20AU support?

It supports I²C, SPI, and UART/USART interfaces.

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