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Black square TQFP64 microcontroller chip with silver pins and white part marking

YINGHUA

YINGHUA PIC18F66K80-IPT TQFP64 semiconductor

SKU CH-J3P5-JTRQS

An 8-bit microcontroller in a 64-pin TQFP package with 66 KB flash and 80 MHz operation

  • Product typeICs Semicoductors
  • PIC18F66K80 microcontroller with 64-pin TQFP package
  • 80 MHz operation enables responsive embedded control
  • 66 KB flash memory stores application firmware
  • 18 KB RAM supports data-intensive routines
  • New condition, first listed June 2026

Microcontroller for Embedded Control

The YINGHUA PIC18F66K80-IPT is an 8-bit microcontroller in a 64-pin TQFP package. It suits engineers developing firmware for industrial, automotive or consumer electronics where deterministic timing and peripheral integration matter. The device targets new designs that need a balance of program memory and on-chip resources.

Low-Power Operation and Thermal Profile

Built on a low-voltage process, the chip draws minimal current during active execution and offers sleep modes for battery-backed or energy-harvesting systems. Heat dissipation in normal use stays within the limits of the TQFP64 footprint without forced airflow. The 2026 silicon revision maintains stable behaviour across the specified voltage range.

PCB Integration and System Fit

The 64-lead thin quad flat pack fits standard reflow assembly and leaves board area free for supporting crystals, regulators and interface transceivers. Pin-compatible migration paths let designers scale program space from 18 K up to 66 K without layout changes. Buyers who need more I/O pins or integrated high-speed USB will need a different controller.

How it compares

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

Price $36.99
Typical for this category: the median of 1,027 items is $34.99.

Specifications

Product
Product typeICs Semicoductors

Questions about this item

How is the 64-pin TQFP package soldered to a PCB and what alignment step is often missed?

Align the 64 leads with the footprint, apply flux, then reflow or hand-solder each pin; the step often missed is verifying coplanarity of all four sides before heating.

What long-term maintenance does the PIC18F66K80-IPT require after installation?

No scheduled maintenance is needed; the device operates until a hard fault occurs, at which point the entire IC is replaced.

Which limit appears first when the 18F66K80 runs continuously at full speed?

The internal junction temperature limit is reached before any other constraint during sustained maximum-frequency operation.

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