Supply voltage range: +4.75V to +5.25V Maximum supply voltage: +7V Maximum current allowed to draw through each gate output: 8mA Totally lead free TTL outputs MaximumRise Time: 15ns Maximum Fall Time: 15ns Operating temperature:0 to 70 C1. The chip is basically used where a logic inverter is needed. Inverter Gates in this chip provide output which is negated logic input. The chip has six gates which do NOT operation. 2. When you want TTL outputs. The gates in this chip provide TTL logic outputs which are a must in some applications. 3. 74LS04 is a low cost chip available in market and so it is used when application cost is low.