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Small black square 64-pin TQFP semiconductor chip

YINGHUA

YINGHUA ATUC128L3U-AUT 64-TQFP semiconductor

SKU CH-KA33-WMK67

ATUC128L3U-AUT microcontroller in 64-pin TQFP package with 128 KB flash for embedded control applications

  • Product typeICs Semicoductors
  • 64-pin TQFP package simplifies board layout
  • 128 KB on-chip memory supports larger firmware
  • IC semiconductor design handles core control tasks
  • New condition ensures reliable out-of-box operation
  • First listed February 21 2025 confirms current availability

Component identity

The YINGHUA ATUC128L3U-AUT is a 64-TQFP semiconductor listed on 21 February 2025. It is an ICs Semicoductors type device intended for electronic design and manufacturing workflows.

Installation notes

The 64-TQFP package requires surface-mount soldering onto a compatible PCB footprint. Incorrect pad alignment or insufficient reflow temperature profile usually causes open joints or bridging between pins.

Suitability

Engineers developing embedded systems with this specific pin count and package style will find it appropriate. Buyers who need a different pin configuration, package format or voltage rating should look at alternative components.

How it compares

Measured against everything we stock in Encoders & Semiconductor Parts, at today’s prices. Recalculated every night.

Price $63.99
Pricier than about 72% of the 1,027 comparable items (median $34.99).

Specifications

Product
Product typeICs Semicoductors

Questions about this item

How do I confirm the ATUC128L3U-AUT is running after soldering the 64-TQFP package?

Apply power within the specified voltage range and verify the device responds on its communication pins using a debugger or test firmware.

What comes with the ATUC128L3U-AUT and what must I source separately?

The reel or tray contains only the ICs; you must supply the PCB, solder paste, reflow equipment, decoupling capacitors, crystal or oscillator, and programming header.

Which capacity version of the ATUC128L3U-AUT should I select for my design?

The part number indicates 128 KB flash; choose this version when your firmware fits within that memory size.

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