Reduced models of the operation modes βF =ĭischarge path and Base-Driving circuitry IS = α F I ES = α R I CS transport saturation current I D ,BE = I ES (e VBE / VT − 1) I D ,BC = I CS (e VBC / VT − 1) Speed-power product = (Average Power Diss) x (Propagation Delay)Įbers-Moll NPN BJT Model I E = I D ,BE − α R I D ,BC I C = α F I D ,BE − I D ,BC IB = IE − IC Logic Element Equivalent Circuit and Fan-out Rise and fall times and turn-on and turn-off times Idealized Inverter and Voltage Transfer Characteristics( VTCs) Most important elements: Inverter and Noninverter Properties of Digital Integrated Circuits Resistor-Transistor Logic (RTL) Diode-Transistor Logic (DTL) Transistor-Transistor Logic (TTL) Schottky Transistor – Transistor Logic (STTL) Different TTL Gates Emitter-Coupled Logic (ECL) MOS Digital Circuits NMOS Gates CMOS Gates Taub and Schilling, Digital Integrated Electronics, McGraw-Hillīasic Properties of Digital Integrated Circuits Diode Digital Circuits BJT Digital Circuits – Ebers & Moll equations – Transistor modelling – State of transistor in a circuit.DeMassa and Ciccone, Digital Integrated Circuits, John Wiley & Sons.
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