HEF4093BT/652 – PHILIPS

Overview

The Nexperia HEF4093BT,652 is a quad 2-input NAND gate IC featuring integrated Schmitt trigger inputs, providing superior noise immunity and hysteresis crucial for signal conditioning in noisy environments. Its primary function is to perform the logical NAND operation while its most critical operational characteristic is the defined input threshold levels that prevent false triggering from slow or noisy input signals. A common design trade-off when utilizing Schmitt triggers is the increased propagation delay compared to standard logic gates, necessitating careful timing analysis in high-speed applications.

Key Features

• Quad 2-Input NAND Gate Configuration
• Schmitt Trigger Input for Enhanced Noise Immunity
• Wide Supply Voltage Range: 3V to 15V
• Low Quiescent Current: 1 µA (Max)
• Symmetrical Output Drive: 3.4mA (High/Low)
• Package: 14-SOIC (Surface Mount), 3.90mm Width

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

• Debouncing mechanical switches and pushbuttons in control interfaces
• Generating clean clock signals from unstable oscillators
• Creating pulse stretching or shaping circuits
• Implementing reliable threshold detection in analog-to-digital front-ends