6 ‘s application circuits usually 74LS48 , 74LS192 , 74LS00 , 74LS175 , 74LS20 , 74LS02 TTL integrated and used in all the main logic integrated timing Lm555 same 1 and 5 Lm555 circuits are made ​​with square wave... Electronics Projects, TTL integrated applications Display Circuits "analog circuits projects, " Date 2019/08/02