74LS14 Datasheet – Hex Inverter with Schmitt Trigger

Part Number: 74LS14, DM74LS14N, HD74LS14P

Function: Hex Inverter with Schmitt Trigger Input

Package:  DIP 14 Pin Type

Manufacturer: Fairchild, Hitachi, TI


74LS14 Hex Inverter


A hex inverter with Schmitt trigger refers to a digital logic component that combines six individual inverters with Schmitt trigger inputs into a single package. The Schmitt trigger input allows for improved noise immunity and hysteresis in the input signal, providing more robust and reliable signal processing.

This device contains six independent gates each of which performs the logic INVERT function. Each input has hysteresis which increases the noise immunity and transforms a slowly changing input signal to a fast changing, jitter free output.


74LS14 datasheet pinout


1. Operation From Very Slow Edges
2. Improved Line-Receiving Characteristics
3. High Noise Immunity

Truth Table

Truth Table

[ … ]


1. HVAC Gateways
2. Residential Ductless Air Conditioning Outdoor Units
3. Robotic Controls
4. Industrial Stepper Motors
5. Power Meter and Power Analyzers
6. Digital Input Modules for Factory Automation

Related Posts

74LS14 Datasheet PDF Download




Related articles across the web

SN74HC14 Datasheet PDF – Hex Inverter, 74HC14

Part Number: SN74HC14


Package: DIP, SO 14 Pin Type

Manufacturer: Texas Instruments

PinoutSN74HC14 pinout, 74HC14 pinout


The SN74HC14 is Hex Inverters with Schmitt-Trigger Inputs.

These Schmitt-trigger devices contain six independent inverters. They perform the Boolean function Y = Ain positive logic. The SN54HC14 is characterized for operation over the full military temperature range of –55°C to 125°C. The SN74HC14 is characterized for operation from –40°C to 85°C.

SN74HC14 Datasheet, 74HC14 Datasheet


1. Buffered inputs
2. Wide operating voltage range: 2 V to 6 V
3. Wide operating temperature range: -40°C to +85°C
4. Supports fanout up to 10 LSTTL loads
5. Significant power reduction compared to LSTTL logic ICs


1. Synchronize invterted clock inputs
2. Debounce a switch
3. Invert a digital signal


Other data sheets are available within the file: SN74HC14DR, SN74HC14NR, SN54HC14JR


SN74HC14 Datasheet


Related articles across the web