This part is a kind of semiconductor called MC14011B.

Function of this product has B-Suffix Series CMOS Gates.

Manufacturers : Motorola

Image and pinout :

Some of the text within the PDF file :

MOTOROLA SEMICONDUCTOR TECHNICAL DATA B-Suffix Series CMOS Gates The B Series logic gates are constructed with P and N channel enhancement mode devices in a single monolithic structure (Complementary MOS). Their primary use is where low power dissipation and/or high noise immunity is desired. • Supply Voltage Range = 3.0 Vdc to 18 Vdc • All Outputs Buffered • Capable of Driving Two Low–power TTL Loads or One Low–power Schottky TTL Load Over the Rated Temperature Range. • Double Diode Protection on All Inputs Except: Triple Diode Protection on MC14011B and MC14081B • Pin–for–Pin Replacements for Corresponding CD4000 Series B Suffix Devices (Exceptions: MC14068B and MC14078B) Quad 2-Input NOR Gate Dual 4-Input NOR Gate Quad 2-Input NAND Gate Dual 4-Input NAND Gate Triple [ ... ]

MC14011B PDF Datasheet Download