digital logic slides - cs.umd.edu · • CMOS: Complementary metal–oxide–semiconductor (CMOS)...

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DIGITAL LOGIC AND GATES

Transcript of digital logic slides - cs.umd.edu · • CMOS: Complementary metal–oxide–semiconductor (CMOS)...

Page 1: digital logic slides - cs.umd.edu · • CMOS: Complementary metal–oxide–semiconductor (CMOS) LOGIC IS BIG BUSINESS. INTEL XEON Logic gates printed into chip. MOTOROLA POWER PC.

DIGITAL LOGIC AND GATES

Page 2: digital logic slides - cs.umd.edu · • CMOS: Complementary metal–oxide–semiconductor (CMOS) LOGIC IS BIG BUSINESS. INTEL XEON Logic gates printed into chip. MOTOROLA POWER PC.

RELAYSPower Source

Magnet

Control

Output

Page 3: digital logic slides - cs.umd.edu · • CMOS: Complementary metal–oxide–semiconductor (CMOS) LOGIC IS BIG BUSINESS. INTEL XEON Logic gates printed into chip. MOTOROLA POWER PC.

RELAYSPower Source

Magnet

Control

Output

Page 4: digital logic slides - cs.umd.edu · • CMOS: Complementary metal–oxide–semiconductor (CMOS) LOGIC IS BIG BUSINESS. INTEL XEON Logic gates printed into chip. MOTOROLA POWER PC.

AND GATE

p=0

q=0

p AND q = 0

Schematic Symbol

pq

p AND q

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AND GATE

p AND q = 0

Schematic Symbol

pq

p AND q

p=1

q=0

Page 6: digital logic slides - cs.umd.edu · • CMOS: Complementary metal–oxide–semiconductor (CMOS) LOGIC IS BIG BUSINESS. INTEL XEON Logic gates printed into chip. MOTOROLA POWER PC.

AND GATE

p AND q = 1

Schematic Symbol

pq

p AND q

p=1

q=1

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OR GATE

p=0

q=0

p OR q = 0

Schematic Symbol

pq

p OR q

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OR GATE

p=1

q=0

p OR q = 1

Schematic Symbol

pq

p OR q

Page 9: digital logic slides - cs.umd.edu · • CMOS: Complementary metal–oxide–semiconductor (CMOS) LOGIC IS BIG BUSINESS. INTEL XEON Logic gates printed into chip. MOTOROLA POWER PC.

OR GATE

p=0

q=1

p OR q = 1

Schematic Symbol

pq

p OR q

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MORE GATES

Not

NAND

NORXOR

¬A

¬(A ^B)

¬(A _B)

A�B

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DO STUFF ON BOARD

Page 12: digital logic slides - cs.umd.edu · • CMOS: Complementary metal–oxide–semiconductor (CMOS) LOGIC IS BIG BUSINESS. INTEL XEON Logic gates printed into chip. MOTOROLA POWER PC.

ALL YOU COMPUTER DOES IS LOGIC!4-Bit Binary Adder 16-Bit Binary Adder

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ALL YOUR COMPUTER DOES IS LOGIC!Reset-set (RS) latch memory cell

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WHAT YOU NEED TO BUILD A COMPUTER

Page 15: digital logic slides - cs.umd.edu · • CMOS: Complementary metal–oxide–semiconductor (CMOS) LOGIC IS BIG BUSINESS. INTEL XEON Logic gates printed into chip. MOTOROLA POWER PC.

WHAT YOU NEED TO BUILD A COMPUTER

• Wire (magnets)

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WHAT YOU NEED TO BUILD A COMPUTER

• Wire (magnets) • Dowels (wrapping)

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WHAT YOU NEED TO BUILD A COMPUTER

• Wire (magnets) • Dowels (wrapping)• Masking tape (insulation)

Page 18: digital logic slides - cs.umd.edu · • CMOS: Complementary metal–oxide–semiconductor (CMOS) LOGIC IS BIG BUSINESS. INTEL XEON Logic gates printed into chip. MOTOROLA POWER PC.

WHAT YOU NEED TO BUILD A COMPUTER

• Wire (magnets) • Dowels (wrapping)• Masking tape (insulation)• Tin foil (switches)

Page 19: digital logic slides - cs.umd.edu · • CMOS: Complementary metal–oxide–semiconductor (CMOS) LOGIC IS BIG BUSINESS. INTEL XEON Logic gates printed into chip. MOTOROLA POWER PC.

WHAT YOU NEED TO BUILD A COMPUTER

• Wire (magnets) • Dowels (wrapping)• Masking tape (insulation)• Tin foil (switches)• Lots of Lemons (power)

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WHAT YOU NEED TO BUILD A COMPUTER

• Wire (magnets) • Dowels (wrapping)• Masking tape (insulation)• Tin foil (switches)• Lots of Lemons (power)• CMSE 250H

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WHAT YOU NEED TO BUILD A COMPUTER

• Wire (magnets) • Dowels (wrapping)• Masking tape (insulation)• Tin foil (switches)• Lots of Lemons (power)• CMSE 250H• Nothing better to do

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FIRST DIGITAL COMPUTER

This guy actually did that

Konrad ZuseZ2, 1939

First electronic digital computer

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VACUUM TUBES

FilamentGrid

AnodeGlass

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ENIAC

First “turning complete” machine• 18K tubes • 15K relays • 10K Capacitors • 5M hand-soldered joints

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TRANSISTORSTransfer-resistor

Semiconductor acts as relay

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TRANSISTORS ARE SMALLWWII Radio 1950’S Radio

Transistor invented in 1947 (Bell Labs)

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INTEGRATED CIRCUITS

Logic gates printed on wafer • Printed on silicon wafer • Germanium “ink” • CMOS: Complementary

metal–oxide–semiconductor (CMOS)

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LOGIC IS BIG BUSINESS

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INTEL XEONLogic gates printed into chip

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MOTOROLA POWER PC


LOGIC CMOS SCALING - Applied Materials

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3.3 CMOS Logic 1. CMOS Logic Levels NextReturn Logic levels for typical CMOS Logic circuits. Logic 1 (HIGH) Logic 0 (LOW) Undefined Logic level 5.0V 3.5V.

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03 logic cmos - UTCluj · Systems with Digital Integrated Circuits –CMOS Logic Structures 2 CMOS logic structures CMOS technology CMOS inverter: structure, behavior, electrical

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CMOS Circuit and Logic Design* - .xyzlibvolume3.xyz/electrical/btech/semester7/vlsicircuitsanddesign/mo... · CMOS Circuit and Logic Design* • CMOS Logic Gate Design: – Is the

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