The TC74HC14AFN is a high-speed CMOS Schmitt trigger hex inverter fabricated with silicon gate CMOS technology. It provides six independent inverters with Schmitt trigger inputs. The Schmitt trigger action makes the device highly tolerant to slow or noisy input signals, providing clean and predictable output transitions.

Applications

• Wave shaping
• Noise suppression
• Pulse shaping
• Clock generation
• Interface circuits

Features

• High-speed operation: tpd = 11 ns (typ.) at VCC = 5V
• Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
• High noise immunity: VNIH = VNIL = 28 % VCC (min)
• Output drive capability: 10 LSTTL loads
• Symmetrical output impedance: |IOH| = IOL = 4 mA (min)
• Balanced propagation delays: tPLH ≈ tPHL
• Wide operating voltage range: VCC = 2 to 6 V
• Schmitt trigger inputs for noise immunity

Benefits

• High Speed: Enables fast switching and signal processing.
• Low Power Consumption: Ideal for battery-powered and energy-efficient devices.
• High Noise Immunity: Ensures reliable operation in noisy environments.
• Wide Operating Voltage: Offers design flexibility in power supply selection.
• Schmitt Trigger Inputs: Provides clean and predictable output transitions even with noisy or slow-changing inputs.

Additional Details

The TC74HC14AFN is supplied in a 14-pin DIP (Dual In-line Package). Each inverter operates independently. The hysteresis provided by the Schmitt trigger inputs eliminates false triggering caused by noise or slow signals. This makes the device especially suitable for applications involving sensors, switches, and other sources of potentially noisy signals. The operating temperature range is -40°C to +85°C.