TTL <br/><br/>
TTL / IC   the world TTL, IC data and cross-reference guide  [Book] 
TTL . 
<br/><br/> All. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transistor-transistor logic circuits.
<br/><br/><label>Dewey Class. No.: </label>621.38173