This part is a kind of semiconductor called 54LS374.

Function of this product has DM54LS374.

Manufacturers : National Semiconductor

Image and pinout :

Some of the text within the PDF file :

DM54LS373 DM74LS373 DM54LS374 DM74LS374 TRI-STATE Octal D-Type Transparent Latches and Edge-Triggered Flip-Flops May 1992 DM54LS373 DM74LS373 DM54LS374 DM74LS374 TRI-STATE Octal D-Type Transparent Latches and Edge-Triggered Flip-Flops General Description These 8-bit registers feature totem-pole TRI-STATE outputs designed specifically for driving highly-capacitive or relative ly low-impedance loads The high-impedance state and increased high-logic level drive provide these registers with the capability of being connected directly to and driving the bus lines in a bus-organized system without need for interface or pull-up components They are particularly attractive for implementing buffer registers I O ports bidirectional bus drivers and working registers (Continued) Fe [ ... ]

54LS374 PDF Datasheet Download