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Black square TQFP44 microcontroller chip with silver pins and white part marking

YINGHUA

YINGHUA PIC18F45K42-I PT TQFP44 semiconductor

SKU CH-F4PT-NNQ3K

An 8-bit microcontroller in a 44-pin TQFP package with 45 KB flash memory

  • Product typeICs Semicoductors
  • PIC18F45K42 microcontroller in 44-pin TQFP package
  • 8-bit PIC18 core with 45K series performance
  • New condition ready for production use
  • Surface-mount TQFP44 footprint saves board space
  • Manufacturer listed June 2026 for current availability

PIC18F45K42-I PT TQFP44 microcontroller

The PIC18F45K42-I PT TQFP44 is an 8-bit microcontroller from YINGHUA supplied in a 44-pin TQFP package. It targets embedded designs that need on-chip peripherals and flash memory in a compact surface-mount footprint. Engineers building control boards, sensor nodes or automation modules will find the device matches standard PIC18 core expectations.

TQFP44 package enables direct PCB assembly

The 44-pin thin quad flat pack lets the IC be soldered straight onto a printed circuit board without a socket. This reduces board height and component count compared with through-hole alternatives. The pin arrangement follows the standard PIC18F45K42 pinout so existing schematic symbols and footprints apply without modification.

44-pin count fixes I/O and peripheral limits

The 44 pins determine how many general-purpose I/O lines, analog channels and communication interfaces are simultaneously available. Designs needing more external connections must choose a higher-pin-count variant; designs needing fewer can use a smaller package but lose the full peripheral set.

How it compares

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

Price $17.99
Cheaper than about 76% of the 1,027 comparable items (median $34.99).

Specifications

Product
Product typeICs Semicoductors

Questions about this item

Does the 44-pin TQFP package require any special rework tools if a pin is damaged?

The 44-pin TQFP package uses standard surface-mount leads; a fine-tip soldering iron and flux are sufficient for individual pin rework.

What thermal limit appears first when the PIC18F45K42 runs continuously at full speed?

The junction temperature rating defines the first thermal limit during sustained operation at maximum clock frequency.

How much power does the PIC18F45K42 draw when running all day at 5 V?

Active current scales with clock speed and enabled peripherals; typical run current is in the low milliampere range at 5 V.

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