This part is a kind of semiconductor called CD4049BMS.

Function of this product has CMOS Hex Buffer/Converter.

Manufacturers : Intersil Corporation

Image and pinout :

Some of the text within the PDF file :

CD4049UBMS Data Sheet December 1992 File Number 3315 CMOS Hex Buffer/Converter The CD4049UBMS is an inverting hex buffer and features logic level conversion using only one supply (voltage (VCC). The input signal high level (VIH) can exceed the VCC supply voltage when this device is used for logic level conversions. This device is intended for use as CMOS to DTL/TTL converters and can drive directly two DTL/TTL loads. (VCC = 5V, VOL ≤ 0.4V, and IOL ≥ 3.3mA. The CD4049UBMS is designated as replacement for CD4009UB. Because the CD4049UBMS requires only one power supply, it is preferred over the CD4009UB and CD4010B and should be used in place of the CD4009UB in all inverter, current driver, or logic level conversion applications. In these applications the CD4049UBMS [ ... ]

CD4049BMS PDF Datasheet Download