Introduction to Digital VLSI Design

1. Introduction to Digital VLSI Design
Dr. Varun Kumar
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2. Outlines
1 Motivation:
2 Introduction to CMOS
Application of CMOS
3 CMOS Inverter
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3. Motivation:
⇒ Digital VLSI Design → DVD 6= Digital versatile disk.
⇒ DVD ≡ Digital + VLSI + Design
Digital → Man made signal
Key Features of digital:
(a) Highly noise immune
(b) Less physical space for storing an information
(c) Economical
(d) Information security (Encryption)
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4. Continued–
VLSI→ Very large scale integration
Key features of VLSI:
(a) Miniaturization of hardware size
(b) Reduction of overall operating power for a device.
(c) To increase the storage and computational capability.
(d) Improved performance in terms of the operating speed of circuits.
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5. Continued–
Design
Note: CMOS is an important ingredient for doing the VLSI design.
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6. Introduction to CMOS
CMOS Inverter
⇒ CMOS → Complementary metal oxide semi-conductor.
⇒ CMOS → Combination of p-MOS and n-MOS.
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7. Key features of CMOS
Key Features of CMOS
⇒ Low-static electrical power consumption
⇒ Resistance to high levels of electronic noise
Application:
1 Inverter
2 Buffer
3 Adder
4 Subtractor
5 Multiplier
6 Logic gates
7 Microprocessors, micro-controllers, memory chips, etc
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8. CMOS Inverter
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