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Black rectangular TQFP64 chip with silver pins and white markings

YINGHUA

YINGHUA PIC18F66K40-I PT TQFP64 semiconductor

SKU CH-2BYE-0HDBR

An 8-bit microcontroller with 64 KB flash and 66 I/O pins in a 64-pin TQFP package

  • Product typeICs Semicoductors
  • PIC18F66K40 microcontroller delivers 18-bit performance with 64-pin TQFP package
  • 66 KB flash memory supports complex embedded applications
  • 40 MHz operation enables responsive real-time control
  • New condition ensures reliable out-of-box operation
  • 2026 manufacturer listing indicates current production availability

Microcontroller for embedded control

The PIC18F66K40-I PT TQFP64 is an 8-bit microcontroller built for embedded control tasks. It integrates core processing with on-chip peripherals in a single package. Engineers select it for deterministic real-time applications.

64 KB flash with 40 MHz headroom

The device provides 64 KB of program flash and operates up to 40 MHz. This capacity handles moderate firmware and interrupt-driven routines. Larger data logs or complex graphics exceed the available memory and speed.

TQFP64 package for direct PCB mounting

The 64-pin thin quad flat pack fits standard surface-mount assembly flows. It requires a regulated supply and external crystal or resonator for precise timing. The pin count frees board space compared to larger alternatives.

How it compares

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

Price $13.99
Cheaper than about 87% of the 1,027 comparable items (median $34.99).

Specifications

Product
Product typeICs Semicoductors

Questions about this item

Will the 64-pin TQFP footprint of the PIC18F66K40-I PT match the board layout I already use for other 64-pin PIC18F parts?

The device is supplied in a 64-pin TQFP package, so any PCB designed for that exact pin count and pitch will accept it mechanically.

How can I confirm the PIC18F66K40-I PT is running correctly after I solder it to the board?

Apply power within the specified voltage range, then verify the oscillator starts and the expected firmware signature appears on the programming interface.

Does the package include a programming header or adapter, or must I source one separately?

Only the PIC18F66K40-I PT TQFP64 integrated circuit is supplied; any ICSP header, programmer or socket must be obtained separately.

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