onsemi

74HCT14DTR2G

74HCT14DTR2G Description

The 74HCT14DTR2G is a high-speed CMOS hex inverting Schmitt trigger from onsemi, packaged in a 14-pin TSSOP (Tape & Reel) for surface-mount applications. Designed for 4.5V to 5.5V operation, it features six independent inverters with Schmitt-trigger inputs, ensuring robust noise immunity and hysteresis for signal conditioning. This device is part of the 74HCT series, offering TTL-compatible input thresholds (1.9V–2.1V High, 0.5V–0.6V Low) while maintaining low power consumption (2 µA quiescent current max). With a max propagation delay of 32ns at 5V/50pF, it balances speed and efficiency, making it suitable for high-reliability digital systems.

74HCT14DTR2G Features

• Schmitt Trigger Inputs: Provides hysteresis (typically 0.9V), enhancing noise rejection and signal integrity in noisy environments.
• TTL Compatibility: Direct interface with TTL-level signals, simplifying mixed-voltage designs.
• Low Power Consumption: 2 µA max quiescent current ideal for battery-operated or power-sensitive applications.
• High Output Drive: 4mA sink/source current ensures reliable fan-out to multiple loads.
• Surface-Mount Package: 14-TSSOP (Tape & Reel) for compact PCB layouts and automated assembly.
• Wide Operating Voltage: 4.5V–5.5V range supports standard 5V logic systems.

74HCT14DTR2G Applications

• Signal Conditioning: Cleans up distorted or slow-rising signals (e.g., sensor outputs, debouncing switches).
• Oscillators/Waveform Shaping: Generates precise clock signals or square waves from irregular inputs.
• Noise Filtering: Critical in industrial controls, automotive electronics, and communication systems where EMI is prevalent.
• Level Shifting: Bridges TTL and CMOS logic families in mixed-signal designs.
• Portable Electronics: Low power and small footprint suit handheld devices and IoT modules.

Conclusion of 74HCT14DTR2G

The 74HCT14DTR2G excels in applications demanding noise immunity, signal integrity, and TTL compatibility. Its Schmitt-trigger inputs, low power, and robust output drive make it a versatile choice for industrial, automotive, and consumer electronics. While marked obsolete, existing stock remains valuable for legacy designs or replacements. For new projects, consider onsemi’s recommended alternatives with similar performance but extended lifecycle support.