SN74LS132

SN74LS132 Quad 2−Input Schmitt Trigger NAND Gate The SN74LS132 contains four 2-Input NAND Gates 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 NAND Gates. Each circuit contains a 2-input 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. As long as one input remains at a more positive voltage than VT+ (MAX), the gate will respond to the transitions of the other input as shown in Figure 1. LOGIC AND CONNECTION DIAGRAM DIP (TOP VIEW) VCC 14 13 12 11 10 9 8 http://onsemi.com LOW POWER SCHOTTKY 14 1 PLASTIC N SUFFIX CASE 646 14 1 SOIC D SUFFIX CASE 751A 1234567 GND GUARANTEED OPERATING RANGES Symbol Parameter Min Typ Max Unit VCC Supply Voltage TA Operating Ambient Temperature Range 4.75 5.0 5.25 V 0 25 70 °C IOH Output Current − High IOL Output Current − Low −0.4 mA 8.0 mA 14 1 SOEIAJ M SUFFIX CASE...