This part is a kind of semiconductor called 74LS132.

Function of this product has LOW POWER SCHOTTKY.

Manufacturers : ON Semiconductor

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Some of the text within the PDF file :

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 [ ... ]

74LS132 PDF Datasheet Download