ProductsIntegrated CircuitsATMEGA32U4-AU
PACKAGE REFERENCETQFP-44Confirm case, pinout and ordering suffix before purchase.
MANUFACTURER PART RECORD

ATMEGA32U4-AU

Microchip Technology

ATMEGA32U4-AU is a Microchip 8-bit AVR microcontroller with native USB in 44-pin TQFP — for USB HID devices: custom keyboards, dongles and game controllers. The on-chip USB device controller is the selection point: Arduino Leonardo-class USB without an external bridge. Selection advice: the AU suffix denotes TQFP-44 — the same chip as the Leonardo; for new USB designs, compare 32-bit USB MCUs (SAMD21, STM32F0) for more headroom, but the AVR toolchain and community remain the fastest path for simple HID. Microchip lists this part as In Production. Parameters verified against the Microchip official product page. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

Integrated Circuits8-bit microcontrollerTQFP-44
MPN
ATMEGA32U4-AU
Manufacturer
Microchip Technology
Family
8-bit microcontroller
Package
TQFP-44
Manufacturer channel coverage
Checked by RFQ
Data last checked
Commercial check required
PROCUREMENT DATA

Identity and sourcing requirements.

Manufacturer part number
ATMEGA32U4-AU
Manufacturer
Microchip Technology
Product family
8-bit microcontroller
Category
Integrated Circuits
Package reference
TQFP-44
Manufacturer-channel report
Confirmed on request
Sourceics price status
Quoted for required quantity
Sourceics sourcing status
Supplier and stock verified during RFQ
Required order checks
Suffix, package, date code, lot, source and traceability
SELECTION GUIDANCE

ATMEGA32U4-AU selection guidance

ATMEGA32U4-AU is a 8-bit microcontroller from Microchip Technology, orderable in the TQFP-44 package. The ordering code fixes the exact configuration you receive — package, grade and packing — so procurement starts with matching this code character-for-character against your BOM, not just the base series name.

When you request a quote, include the full ordering code, the target packing format (reel, tube, tray or cut tape), your quantity and any date-code or lot requirements. We reconfirm manufacturer, suffix, package, date code and traceability against the actual offered lot before any commercial quote is issued, and every RFQ gets a reply within 24 hours.

QUOTE WORKFLOW

Four checks before a commercial offer.

01

Identity

Exact MPN, manufacturer and suffix

02

Supply

Supplier type, quantity and freshness

03

Evidence

Lot, labels, photos and documents

04

Terms

Price, lead time, payment and shipping

RELATED REFERENCES

Explore more Integrated Circuits records

Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.

MARKET INSIGHTS

Procurement coverage for ATMEGA32U4-AU

In-depth buyer guides on the market forces affecting this part category — allocation, mergers and technology shifts.

COMMON QUESTIONS

ATMEGA32U4-AU FAQ

What do the suffixes in ATMEGA32U4-AU mean?

Every suffix in a manufacturer ordering code identifies one exact orderable device — package, temperature grade, packing format or a revision. ATMEGA32U4-AU names the TQFP-44 configuration; a code that differs by even one suffix character may be a different device. Always quote the complete code exactly as it appears on your BOM.

What is the difference between package and packing for ATMEGA32U4-AU?

The package (TQFP-44) is the physical form of the device itself. Packing describes how the devices are delivered — reel, tube, tray or cut tape. The same ordering code can ship in different packing formats depending on the lot, so confirm the required packing format when you submit your RFQ.

Can you provide traceability documents for ATMEGA32U4-AU?

Traceability evidence — lot and date-code information, labels and photos — is confirmed per lot at quotation time, because it depends on the actual lot offered. Tell us which documents your receiving inspection requires when you submit the RFQ, and we will confirm what can be provided for the offered lot.

How do I request a quotation for ATMEGA32U4-AU?

Add ATMEGA32U4-AU to your RFQ with the complete ordering code, the manufacturer (Microchip Technology), your quantity, the target packing format and any date-code requirements. We reply to every RFQ within 24 hours.