Transistor Transistor Logic Pdf. Actually there are many different ttl families with a range of speed power consumption and other characteristics. The circuit examples in this section are based on a representative ttl family low power schottky ls or ls ttl.
Transistor transistor logic uses bipolar transistors to form its integrated circuits 3. V a v b v out v cc r c v c q 1 primitive precursor to dtl. N current hogging is a problem because the bipolar transistors can not be matched precisely.
Texas instruments introduced 5400 series ttl family in 1964.
N if all inputs are low the transistor cuts off and v out goes high. N this is a nor gate. View chapter5 pdf from digital beng 1413 at technical university of malaysia melaka. Transistor transistor logic uses bipolar transistors to form its integrated circuits 3.