This part is a kind of semiconductor called 74LS04.

Function of this product has Hex Inverting Gates.

Manufacturers : Fairchild Semiconductor

Image and pinout :

Some of the text within the PDF file :

DM74LS04 Hex Inverting Gates August 1986 Revised March 2000 DM74LS04 Hex Inverting Gates General Description This device contains six independent gates each of which performs the logic INVERT function. Ordering Code: Order Number DM74LS04M DM74LS04SJ DM74LS04N Package Number M14A M14D N14A Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Function Table Y=A Input A L H H = HIGH Logic Level L = LOW Logic Level Output Y H L © 2000 Fairchild Semiconductor Corporation DS006345 www. [ ... ]

74LS04 PDF Datasheet Download