This part is a kind of semiconductor called MC14093B.

Function of this product has Quad 2-Input NAND Schmitt Trigger.

Manufacturers : ON Semiconductor

Image and pinout :

Some of the text within the PDF file :

MC14093B Quad 2-Input NAND" Schmitt Trigger The MC14093B Schmitt trigger is constructed with MOS P–channel and N–channel enhancement mode devices in a single monolithic structure. These devices find primary use where low power dissipation and/or high noise immunity is desired. The MC14093B may be used in place of the MC14011B quad 2–input NAND gate for enhanced noise immunity or to “square up” slowly changing waveforms. http://onsemi.com MARKING DIAGRAMS 14 PDIP–14 P SUFFIX CASE 646 1 14 SOIC–14 D SUFFIX CASE 751A 1 14 14093B AWLYWW MC14093BCP AWLYYWW • Supply Voltage Range = 3.0 Vdc to 18 Vdc • Capable of Driving Two Low–Power TTL Loads or One Low–Power • • • • Schottky TTL Load Over the Rated Temperature Range Triple Diode Protection on All Inputs Pin–fo [ ... ]

MC14093B PDF Datasheet Download