ATMEGA128-16AI vs ATMEGA32U2-AU

This in-depth comparison of the ATMEGA128-16AI and ATMEGA32U2-AU provides valuable insights into their specifications and key features. We cover important factors in detail, including RoHS compliance, REACH status, series, mounting style, package type, and other relevant characteristics. Presenting the differences side by side simplifies component selection, making it easier for you to select the best option for your specific application.

Technical review by ETEI Component Engineering Source: manufacturer documentation

Parts at a glance

Part A

ATMEGA128-16AI

Microchip Technology

Lifecycle
Active
Stock
1315 PCS
Package
TQFP-64
Series
Embedded - Microcontrollers
+BOM RFQ
Part B

ATMEGA32U2-AU

Microchip Technology

Lifecycle
Active
Stock
6950 PCS
Package
TQFP-32
Series
Embedded - Microcontrollers
+BOM RFQ

Need help validating a replacement?

Send your BOM and application constraints for technical and sourcing review.

RFQ Contact technical support

Full specification comparison

Use manufacturer datasheets as the final authority.

Specification ATMEGA128-16AI ATMEGA32U2-AU
Series AVR® ATmega AVR® ATmega
Part Status Obsolete Active
Core Processor AVR AVR
Core Size 8-Bit 8-Bit
Speed 16MHz 16MHz
Connectivity EBI/EMI, I²C, SPI, UART/USART SPI, UART/USART, USB
Peripherals Brown-out Detect/Reset, POR, PWM, WDT Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 53 22
Program Memory Size 128KB (64K x 16) 32KB (16K x 16)
Program Memory Type FLASH FLASH
EEPROM Size 4K x 8 1K x 8
RAM Size 4K x 8 1K x 8
Voltage - Supply (Vcc/Vdd) 4.5V ~ 5.5V 2.7V ~ 5.5V
Data Converters A/D 8x10b -
Oscillator Type Internal Internal
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount
Compare RFQ