Physical States for Bits. Black Box Representations.

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Presentation transcript:

Physical States for Bits

Black Box Representations

Truth Tables

Basic Logic Gates

NAND and NOR gates

Sum of Products Circuits

Timing Diagrams

Logic Levels for CMOS

The concept of voltage- controlled resistance

nMOS transistor

pMOS transistor

Now we put together nMOS and pMOS transistors to create an inverter

Switch Model for CMOS inverter

Logical operation of CMOS inverter

Explanation of 2-input CMOS NAND gate

Switch Model for NAND realized in CMOS

Explanation of CMOS NOR

CMOS NAND with 3 inputs

Example of realization of large NAND gates in CMOS

Buffers realized in CMOS

AND gate in CMOS

AND-OR-INVERT gate in CMOS

CMOS OR-AND-INVERT

Data Sheets and how to use them

Test Circuits and Waveforms

Input-Output Characteristics

Logic Levels and Noise Margins for CMOS logic family

Resistive Models of Inverters

Resistive model for CMOS LOW output with resistive load

Black Box Representations Resistive model for CMOS HIGH output with resistive load

Circuit defintions to calculate currents

Output loading specifications

Estimating sink and source currents

CMOS inverters with nonideal input voltages

Black Box Representations CMOS inverter with load and nonideal 1.5 voltage input

Black Box Representations CMOS inverter with load and nonideal 3.5 voltage input

What to do with non-used inputs?

Transition times

How to analyze transition times for CMOS output?

Model of HIGH-to-LOW transition

Fall time

Model of a CMOS Low-to-High Transition

Rise time for a LOW-to-HIGH transition of a CMOS Output

Propagation Delays for a CMOS inverter

Worst-Case Timing using logic-level boundary points

Ground bounce in an IC with eight inverters and one ground pin

CMOS transition gate

Two-input multiplexer using CMOS transmission gates

Schmitt-Trigger Inverter

Operation with slowly changing inputs

CMOS three-state buffers

Open-Drain CMOS NAND

Open-Drain CMOS NAND gate driving a load

Rising and Falling transitions of an open-drain CMOS output

Driving a LED with an open- drain output

Driving a LED with standard CMOS output

Eight Open-Drain Outputs driving a bus

Wired-AND function on three open-drain NAND-gate outputs

Two CMOS outputs trying to maintain opposite values on the same line

Black Box Representations Four open-drain outputs driving two inputs in the LOW state

Four open-drain outputs driving two inputs in the HIGH state

Input and output levels for CMOS devices using a 5V supply

Transfer characteristics of HC and HCT circuits

Speed and power characteristics of CMOS families operating at 5V

Input specifications for CMOS families with V CC between 4.5 V and 5.5V

Black Box Representations

ECL 2-input OR/NOR

Problems for quizzes

Black Box Representations