Atmel ATMEGA16U2-16AU

  • ATMEGA16U2-16AU Atmel Atmel MCU IC Original Authentic IC Component
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Product attributes Property Value
Manufacturer Atmel
Product Series AVR® ATmega
Packaging Bulk |
Core Processor AVR
Core Size 8-Bit
Speed 16MHz
Connectivity SPI, UART/USART, USB
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 22
Program Memory Size 16KB (8K x 16)
Program Memory Type FLASH
EEPROM Size 512 x 8
RAM Size 512 x 8
Voltage - Supply (Vcc/Vdd) 2.7V ~ 5.5V
Data Converters -
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 32-TQFP (7x7)
Package / Case 32-TQFP

The Atmel ATMEGA16U2-16AU is an 8-bit AVR microcontroller with 16KB flash and 512B RAM. Running at 16MHz from 2.7V to 5.5V, it integrates a USB controller, PWM, and brown-out detection. Packaged in a 32-TQFP, it is ideal for USB peripherals and low-power embedded designs.

  • Integrated USB 2.0: Eliminates external USB controller, reducing cost and board space.
  • Wide voltage range: 2.7V-5.5V supports both 3.3V and 5V systems.
  • Low power consumption: Suitable for battery-powered devices.
  • Compact TQFP-32: Small footprint for space-constrained designs.

USB-to-Serial Adapters

Built-in USB controller simplifies firmware updates and data transfer in programming cables.

Keyboard/Mouse Controllers

Low power and 16MHz speed handle HID reports with low latency.

Battery Chargers

PWM outputs regulate charging current with brown-out protection for safe operation.

LED Lighting Systems

Multiple PWM channels drive RGB LEDs with smooth dimming effects.

Sensor Nodes

2.7V operation allows direct battery power with WDT for autonomous field deployment.

Q: What is the maximum clock speed?
A: It runs at 16MHz with a 2.7V to 5.5V supply.
Q: How much flash memory does it have?
A: It has 16KB of flash (8K x 16).
Q: What is the package type?
A: It comes in a 32-TQFP package.
Q: Does it have USB support?
A: Yes, the ATmega16U2 includes a USB 2.0 full-speed module.
Q: What are the key protection features?
A: It includes brown-out detection, POR, PWM, and WDT.
Base Product Number ： ATMEGA16U2
16KB Flash 16MHz 32-TQFP 8-bit MCU AVR brown-out HID LED low power PWM USB 2.0 WDT
Q: What is the maximum clock speed?
A: It runs at 16MHz with a 2.7V to 5.5V supply.
Q: How much flash memory does it have?
A: It has 16KB of flash (8K x 16).
Q: What is the package type?
A: It comes in a 32-TQFP package.
Q: Does it have USB support?
A: Yes, the ATmega16U2 includes a USB 2.0 full-speed module.
Q: What are the key protection features?
A: It includes brown-out detection, POR, PWM, and WDT.

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