ATMEGA16U4-AU The ATMEGA16U4-AU is an 8-bit AVR microcontroller from Microchip Technology with 16KB Flash memory, 1.25KB SRAM, and 512B EEPROM. It operates at up to 16MHz and includes USB, I2C, SPI, and UART interfaces in a 44-TQFP package.
Mfr Part #:

ATMEGA16U4-AU

Available from 2 distributors
Mfr Name: Microchip Technology
Microchip Technology
The ATMEGA16U4-AU is an 8-bit AVR microcontroller from Microchip Technology with 16KB Flash memory, 1.25KB SRAM, and 512B EEPROM. It operates at up to 16MHz and includes USB, I2C, SPI, and UART interfaces in a 44-TQFP package.
✓ Total Stock: 21,804 pcs

ATMEGA16U4-AU Available from 2 distributors

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ATMEGA16U4-AU 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
Number of I/O
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Voltage
Voltage Supply

ATMEGA16U4-AU Description

Short technical summary and product information.

The ATMEGA16U4-AU is an 8-bit AVR microcontroller from Microchip Technology featuring a high-performance RISC architecture. It delivers up to 16 MIPS throughput at 16MHz and includes 16KB of in-system self-programmable Flash memory, 1.25KB of SRAM, and 512B of EEPROM with 100,000 write/erase cycles. The device supports USB 2.0 full-speed and low-speed communication, along with serial interfaces I2C, SPI, UART, and USART. On-chip peripherals include a 12-channel 10-bit ADC, 14 PWM channels, 5 timers/counters, a temperature sensor, brown-out detection, power-on reset, and watchdog timer. The microcontroller operates from 2.7V to 5.5V and over a temperature range of -40°C to +85°C. It is available in a 44-pin TQFP package (10x10mm) for surface-mount assembly. The JTAG interface enables boundary-scan and on-chip debug. With its USB module and rich peripheral set, the ATMEGA16U4-AU is suitable for embedded control, USB-based designs, and industrial applications.

ATMEGA16U4-AU Quick Information

Product Type: Microcontroller
Series: AVR
Canonical Name: Microchip Technology ATMEGA16U4-AU 8-bit AVR Microcontroller, 16KB Flash, 44-TQFP
Subcategory: 8-bit AVR Microcontroller

ATMEGA16U4-AU Compliance

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

ATMEGA16U4-AU Features

  • 8-bit AVR core with 16 MIPS throughput.
  • 16KB Flash and 1.25KB SRAM memory.
  • USB 2.0 full-speed and low-speed support.
  • 12-channel 10-bit analog-to-digital converter.
  • Surface-mount 44-TQFP package.

ATMEGA16U4-AU Applications

  • USB peripheral and HID device control.
  • Embedded control in industrial automation.
  • Sensor interface and data acquisition systems.
  • Low-power battery-operated devices.

ATMEGA16U4-AU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATMEGA16U4-AU?

2.7V to 5.5V.

What is the package type for the ATMEGA16U4-AU?

44-TQFP (10x10mm).

What is the operating temperature range?

-40°C to 85°C.

Is the ATMEGA16U4-AU RoHS compliant?

Yes, RoHS3 compliant.

How much Flash memory does the ATMEGA16U4-AU have?

16KB (8K x 16) of Flash memory.

Does the ATMEGA16U4-AU support USB?

Yes, it supports USB 2.0 full-speed (12 Mbit/s) and low-speed (1.5 Mbit/s).

What is the maximum clock speed?

16 MHz.

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