This part is a kind of semiconductor called 74145N.

Function of this product has SN74145.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

PACKAGE OPTION ADDENDUM www.ti.com 24-Apr-2015 PACKAGING INFORMATION Orderable Device 5962-8508401VEA Status Package Type Package Pins Package (1) Drawing Qty ACTIVE CDIP J 16 25 Eco Plan (2) TBD Lead/Ball Finish (6) A42 MSL Peak Temp (3) N / A for Pkg Type Op Temp (°C) 85084012A ACTIVE LCCC FK 20 1 TBD POST-PLATE N / A for Pkg Type -55 to 125 8508401EA 8508401FA SN54LS145J SN74145N SN74145N3 SN74LS145D SN74LS145DG4 SN74LS145DR SN74LS145DRE4 SN74LS145DRG4 SN74LS145N SN74LS145N3 SN74LS145NE4 SN74LS145NSR SNJ54145J ACTIVE CDIP ACTIVE CFP ACTIVE ACTIVE CDIP PDIP OBSOLETE ACTIVE PDIP SOIC ACTIVE SOIC ACTIVE SOIC ACTIVE SOIC ACTIVE SOIC ACTIVE PDIP OBSOLETE ACTIVE PDIP PDIP ACTIVE SO ACTIVE CDIP J 16 1 TBD W 16 1 TBD J 16 1 TBD N 16 25 Pb [ ... ]

74145N PDF Datasheet Download