The HD74LS14RPEL-E-Q is a Hex Schmitt-Trigger Inverter manufactured by Renesas Electronics America. This device incorporates six independent inverters, each with a Schmitt-trigger input. Schmitt-trigger inputs provide different threshold levels for rising and falling input voltages, providing hysteresis. This hysteresis characteristic makes the device highly immune to noise and suitable for applications where noisy or slowly changing input signals are present.

Applications

• Noise Suppression
• Wave Shaping
• Debouncing Switches
• Line Receivers
• Oscillator Circuits

Features

• Six Independent Schmitt-Trigger Inverters
• Hysteresis: 0.8V (typ)
• High Noise Immunity
• TTL Compatible Inputs
• Propagation Delay: 15 ns (typ)
• Supply Voltage: 4.75V to 5.25V
• Operating Temperature Range: -40°C to +85°C

Benefits

• Improved Noise Immunity: Schmitt-trigger inputs provide excellent noise immunity compared to standard inverters.
• Clean Signal Output: Hysteresis provides clean, fast output transitions, even with noisy inputs.
• Versatile Applications: Suitable for a wide range of applications where noise or slow signals are present.

Additional Details

The HD74LS14RPEL-E-Q operates from a 4.75V to 5.25V power supply. It is available in a 14-pin SOP package. The typical hysteresis voltage is 0.8V. The propagation delay is typically 15 ns. The inputs are TTL compatible. The device can drive up to 10 standard TTL loads.