This part is a kind of semiconductor called MC14049B.

Function of this product has Hex Buffer.

Manufacturers : ON Semiconductor

Image and pinout :

Some of the text within the PDF file :

MC14049B, MC14050B Hex Buffer The MC14049B Hex Inverter/Buffer and MC14050B Noninverting Hex Buffer are constructed with MOS P−Channel and N−Channel enhancement mode devices in a single monolithic structure. These complementary MOS devices find primary use where low power dissipation and/or high noise immunity is desired. These devices provide logic level conversion using only one supply voltage, VDD. The input−signal high level (VIH) can exceed the VDD supply voltage for logic level conversions. Two TTL/DTL loads can be driven when the devices are used as a CMOS−to−TTL/DTL converter (VDD = 5.0 V, VOL ≤ 0.4 V, IOL ≥ 3.2 mA). Note that pins 13 and 16 are not connected internally on these devices; consequently connections to these terminals will not affect circuit operation. [ ... ]

MC14049B PDF Datasheet Download