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AT43USB355E-AC
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Reference price and stock shown as of 2026-09-22. Confirm live availability and unit price via RFQ before placing a PO.

AT43USB355E-AC

IC USB MCU W/HUB,ADC,PWM 64LQFP
Microchip Technology · Application Specific Microcontrollers · BOM Matching
Mfr. Part Number
AT43USB355E-AC
Manufacturer
Microchip Technology
Package / Case
64-LQFP
Datasheet
Datasheet
Description
IC USB MCU W/HUB,ADC,PWM 64LQFP
RoHS Status
Lead Free / RoHS Complaint
Availability
Sourcing — Lead time quoted on request (often 3–15 business days by channel)
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AT43USB355E-AC
Microchip Technology
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In Stock9,861
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Price
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Reference Price
QuantityPrice
Prices are for reference only. The final transaction is subject to confirmation.
As of 2026-09-22 · Valid as reference until 2026-09-29 · Request RFQ for live stock.
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Specification Summary

Package / Case
64-LQFP
Supplier Device Package
64-LQFP (10x10)
Voltage - Supply
4.4V ~ 5.25V
Program Memory Type
SRAM (24kB)
Operating Temperature
0°C ~ 70°C
Interface
SPI, 3-Wire Serial
Mounting Type
Surface Mount
Controller Series
AT43USB
Full specifications are listed below. Need alternates or BOM matching? Read BOM guide · Request a quote
Stock status: Sourcing — Lead time quoted on request (often 3–15 business days by channel)
Shortage / allocation / EOL lines may need longer — ask via RFQ.
Reference price and stock shown as of 2026-09-22. Confirm live availability and unit price via RFQ before placing a PO.
Lead time FAQ Authenticity FAQ MOQ FAQ
Specifications
Product Description
Purchase & Inquiry
Applications
USB Microcontroller
Controller Series
AT43USB
Core Processor
AVR
Number of I/O
27
Program Memory Type
SRAM (24kB)
RAM Size
1K x 8
Interface
SPI, 3-Wire Serial
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 70°C
Voltage - Supply
4.4V ~ 5.25V
Package / Case
64-LQFP
Supplier Device Package
64-LQFP (10x10)
IC USB MCU W/HUB,ADC,PWM 64LQFP
Brand Introduction

Microchip Technology Inc. is a leading provider of microcontroller and analog semiconductors, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.

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Buying FAQ — AT43USB355E-AC

Answer-first notes for stock, authenticity, lead time and quoting. Marked up as FAQPage.

How do I buy AT43USB355E-AC from Yingxinyuan?

Open RFQ with quantity and target date, or upload a BOM that includes AT43USB355E-AC. We reply with stock, channel note, reference price and ETA.

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How fresh is the stock figure?

Stock and reference price show an as-of date on the page. Ask for a live confirm — allocation lines can change daily.

How do you source authentic parts?

We source from manufacturers, franchised distributors and verified independents, then inspect incoming lots. See /anti-counterfeit/.

What is a typical lead time?

In-stock lines often ship within 24–48 hours after confirmation. Sourcing / allocation ETAs are quoted per line — see /lead-time-shipping/.
BOM matching · Anti-counterfeit · Lead time & shipping

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