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Microchip Technology ATMEGA32U4-AU

IC MCU 8BIT 32KB FLASH 44TQFP

Answer first: this page is a purchasing reference for the exact part number ATMEGA32U4-AU from Microchip Technology. Use it to start datasheet, package, manufacturer and RFQ verification; do not treat page text as a live stock, price or lead-time promise.

Manufacturer: Microchip Technology Category: Microcontrollers Part number: ATMEGA32U4-AU Package: 44-TQFP RFQ verification required

Key Parameters

Part NumberATMEGA32U4-AU
ManufacturerMicrochip Technology
CategoryMicrocontrollers
package44-TQFP
seriesAVR® ATmega
packagingTray
product statusActive
param 1Not Verified
param 2AVR
param 38-Bit
param 416MHz
param 5I2C, SPI, UART/USART, USB
param 6Brown-out Detect/Reset, POR, PWM, WDT
param 726
param 832KB (16K x 16)
param 9FLASH
param 101K x 8
param 112.5K x 8
param 122.7V ~ 5.5V
param 13A/D 12x10b
param 14Internal
param 15-40°C ~ 85°C (TA)
param 16-
param 17-
param 18Surface Mount
param 1944-TQFP (10x10)

Parameters are provided for purchasing review. Confirm package, suffix, lifecycle status, datasheet revision and approved substitutes before ordering.

How to Verify ATMEGA32U4-AU Before Ordering

Datasheet and parameter checks

  • Confirm the full manufacturer part number, not only a shortened search keyword.
  • Compare package, pinout, dimensions, voltage or rating fields, temperature range and compliance wording against the released BOM.
  • Use the manufacturer datasheet or drawing for electrical and mechanical limits before approving a substitute.

RFQ fields SENICO needs

  • Send exact part number, manufacturer, quantity, target delivery date, destination and required packaging.
  • State whether alternates are allowed, and list any date-code, certificate, traceability or customer AVL requirement.
  • Keep exact stock, factory lead time and proposed alternatives in separate quote lanes.

For ATMEGA32U4-AU, SENICO recommends checking manufacturer marking, package, date code, requested quantity, approved vendor requirements and replacement risk before issuing a purchase order. If a supplier suggests an equivalent, record the changed fields and approval owner before comparing price.

We do not treat displayed data as a real-time stock or price commitment. The RFQ reply is the verified commercial reference.

Related buying guides: stock and lead-time verification, equivalent IC comparison, and BOM RFQ preparation.