STMicroelectronics

HCF40106BEY  

Gates and Inverters

HCF40106BEY Description

The HCF40106BEY from STMicroelectronics is a hex Schmitt-trigger inverter belonging to the 4000B series, designed for robust digital logic applications. This through-hole-mounted IC integrates six independent inverters with Schmitt-trigger inputs, ensuring noise immunity and precise signal conditioning. Operating across a wide voltage range (3V to 20V), it supports flexible power supply configurations while maintaining low quiescent current (20 µA max), making it suitable for power-sensitive designs. The device features high noise margins, with input logic levels of 0.9V–4V (Low) and 3.6V–10.8V (High), and delivers symmetrical output drive (6.8mA sink/source). Its 120ns propagation delay (at 15V, 50pF) ensures reliable performance in medium-speed applications.

HCF40106BEY Features

• Schmitt-Trigger Inputs: Enhances noise rejection and signal integrity, ideal for debouncing switches or filtering erratic signals.
• Wide Supply Range (3V–20V): Compatible with TTL and CMOS logic levels, enabling versatile system integration.
• Low Power Consumption: 20 µA max quiescent current minimizes energy usage in battery-operated devices.
• High Output Drive: 6.8mA output current supports direct interfacing with LEDs, relays, or other peripherals.
• Robust Packaging: 14-pin DIP (Tube) ensures durability and ease of prototyping.
• RoHS3 & REACH Compliant: Meets environmental and safety standards for global deployment.

HCF40106BEY Applications

• Signal Conditioning: Cleans up noisy sensor outputs (e.g., encoders, touch panels) using Schmitt-trigger hysteresis.
• Oscillator Circuits: Forms stable RC oscillators for clock generation in timers or pulse-width modulators.
• Switch Debouncing: Eliminates contact bounce in mechanical switches for reliable digital input processing.
• Level Shifting: Bridges logic interfaces between mixed-voltage systems (e.g., 5V to 12V).
• Industrial Control: Used in PLCs, motor drives, and automation systems for robust logic operations.

Conclusion of HCF40106BEY

The HCF40106BEY excels in noise-immune, low-power digital designs, combining Schmitt-trigger reliability with wide voltage compatibility. While marked obsolete, its enduring performance in signal conditioning, oscillation, and debouncing makes it a pragmatic choice for legacy or cost-sensitive projects. Engineers value its simplicity, robustness, and compliance with modern environmental standards, ensuring relevance in industrial, automotive, and consumer electronics.

HCF40106BEY Documents

Download datasheets and manufacturer documentation for HCF40106BEY

Datasheets :

HCF40106B      

HTML Datasheet :

HCF40106B