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74LS13 Schmitt Trigger IC (7413 IC) DIP-14 Package

36.00 + GST

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The 74LS13 contain logic gates/inverters which accept standard TTL input signals and provide standard TTL output levels. They are capable of transforming slowly changing input signals into sharply defined, jitter-free output signals. Additionally, they have greater noise margin than conventional inverters. Each circuit contains a Schmitt trigger followed by a Darlington level shifter and a phase splitter driving a TTL totem pole output. The Schmitt trigger uses positive feedback to effectively speed-up slow input transitions, and provide different input threshold voltages for positive and negative-going transitions. This hysteresis between the positive-going and negative-going input thresholds (typically 800 mV) is determined internally by resistor ratios and is essentially insensitive to temperature and supply voltage variations.


Parameter Min Typ Max Unit
VCC Supply Voltage 54 4.5 5 5.5 V
74 4.75 5 5.25
TA Operating Ambient Temperature Range 54 -55 25 125 °C
74 0 25 70
IOH Output Current — High 54,74 -0.4 mA
IOL Output Current — Low 54 4 mA
74 8


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