Lect 1 - VLSI DESIGN Design of Digital VLSI Circuits...

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VLSI DESIGN ( Design of Digital VLSI Circuits & Systems in nMOS and CMOS Technologies)
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Evolution of Logic Complexity in Integrated Circuits Complexity (# Logic blocks per chip ) Single Transistor 1958 <1 Unit logic ( one gate) 1960 1 Multi-Function 1962 2-4 Complex Function 1964 5-20 Medium Scale Integration 1967 10-100 Large Scale Integration 1972 100-1000 1978 2000-20,000 ( A logic block can contain 10-100 transistors)
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MICROELECTRONICS EVOLUTION Year Technology Approximate Typical no of Products Transistors/chip 1947 Invention of 1 transistor 1950 Discrete Components 1 1961 SSI 10 Logic Gates/FFs 1967 MSI 100-1000 Counters/MUX/Adders 1971 LSI 1000-20,000 8-bit CPUs, ROM/RAM 1980 VLSI 20,000-100,000 16/31 bit CPUs, DRAMs 1990 ULSI 10 6 -10 7 Special Processors, Smart Sensors 2000 >10 7
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Evolution in Transistor Count Evolution in Complexity
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Name Date Transistors Clock speed Data width 8080 1974 6,000 2MHz 8 bits 8085 1976 6,000 6MHz 8 bits 8086 1978 29,000 10MHz 16 bits 80286 1982 134,000 12MHz 16 bits 80386 1985 275,000 16MHz 32 bits 80486 1989 1,200,000 25MHz 32 bits Pentium 1993 3,100,000 60MHz 64-bits Pentium II 1997 7,500,000 233MHz 64-bits Pentium III 1999 9,500,000 450 MHz 64-bits Pentium 4 2000 42,000,000 1.5 GHz 64-bits The Evolution of Microprocessors
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4.0 3.5 3.0 2.5
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Lect 1 - VLSI DESIGN Design of Digital VLSI Circuits...

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