SN74LS19A Series

6-ch, 4.75-V to 5.25-V bipolar inverters with Schmitt-Trigger inputs

Catalog

6-ch, 4.75-V to 5.25-V bipolar inverters with Schmitt-Trigger inputs

Part	Mounting Type	Input Logic Level - Low	Input Logic Level - High	Features	Max Propagation Delay @ V, Max CL	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Number of Inputs	Logic Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Number of Circuits	Operating Temperature [Max]	Package / Case [x]	Package / Case [y]	Package / Case
Texas Instruments SN74LS19ADR	Surface Mount	0.75 V	2.15 V	Schmitt Trigger	30 ns	400 µA	8 mA	1	Inverter	4.75 V	5.25 V	6	70 °C	0.154 in	3.9 mm	14-SOIC
Texas Instruments SN74LS19AD	Surface Mount	0.75 V	2.15 V	Schmitt Trigger	30 ns	400 µA	8 mA	1	Inverter	4.75 V	5.25 V	6	70 °C	0.154 in	3.9 mm	14-SOIC
Texas Instruments SN74LS19AN	Through Hole	0.75 V	2.15 V	Schmitt Trigger	30 ns	400 µA	8 mA	1	Inverter	4.75 V	5.25 V	6	70 °C	0.3 "	7.62 mm	14-DIP

Catalog

6-ch, 4.75-V to 5.25-V bipolar inverters with Schmitt-Trigger inputs

Key Features

• Functionally and Mechanically Identical to 'LS13, 'LS14, and 'LS132, RespectivelyImproved Line-Receiving CharacteristicsP-N-P Inputs Reduce System LoadingExcellent Noise Immunity with Typical Hysteresis of 0.8 VFunctionally and Mechanically Identical to 'LS13, 'LS14, and 'LS132, RespectivelyImproved Line-Receiving CharacteristicsP-N-P Inputs Reduce System LoadingExcellent Noise Immunity with Typical Hysteresis of 0.8 V

Description

Each circuit functions as a NAND gate or inverter, but because of the Schmitt action, it has different input threshold levels for positive-going (VT+) and for negative-going (VT-) signals. The hysteresis or backlash, which is the difference between the two threshold levels (VT+- VT-), is typically 800 millivolts. These circuits are temperature-compensated and can be triggered from the slowest of input ramps and still give clean, jitter-free output signals. Each circuit functions as a NAND gate or inverter, but because of the Schmitt action, it has different input threshold levels for positive-going (VT+) and for negative-going (VT-) signals. The hysteresis or backlash, which is the difference between the two threshold levels (VT+- VT-), is typically 800 millivolts. These circuits are temperature-compensated and can be triggered from the slowest of input ramps and still give clean, jitter-free output signals.