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Digital Textbooks
ELE Electronics
DeMassa and Ciccone, Digital Integrated
Circuits, John Wiley & Sons.
Taub and Schilling, Digital Integrated
Electronics, McGraw-Hill
Contents
Basic Properties of Digital Integrated Circuits
Diode Digital Circuits
BJT Digital Circuits
Ebers & Moll equations
Transistor modelling
State of transistor in a circuit
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
1
Most important elements: Inverter and Inverter Noninverter
Idealized and Voltage Transfer Characteristics( VTCs)
Rise and fall times and turn-on and turn-off times
Propagation Delays
2
Logic Element Equivalent Circuit and Fan-out
Power dissipation
Power - Delay Product:
Speed-power product = (Average Power Diss) x (Propagation Delay)
Diode Digital Circuits
PD = PDISS(avg) x tP(avg)
3
Diodes
Shockleys Eq
I D = IS (e VD /VT 1)
for Forward Bias
VD V0 = 0.7 V
IV Characteristics
for PN Junction diodes
SPICE model
for MN Schottky diodes
ID = IS (e VD /VT 1)
4
Basic Logic Gates: AND
Basic Logic Gates: OR
Level Shifting Diode AND Gate
Clamping Diodes
Level shifting diodes
Level Shifting Diode OR Gate
5