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Definitions. Schematic: A drawing of interconnected gates. Net: Wires at the same voltage (electrically connected) Netlist: A list of all the devices and connections in a schematic. Fan-in: The # of inputs to a gate. Fan-out: The # of loads the gate drives. 4.
2.1 Logic Gates. What you’ll learn in Module 2.1 . After studying this section, you should be able to: Describe the action of logic gates. AND, OR, NAND, NOR, NOT, XOR and XNOR. Using Boolean expressions. Using truth tables.
Lecture 11 - Logic gates and Boolean. The basic logic gates are the inverter (or NOT gate), the AND gate, the OR gate and the exclusive-OR gate (XOR). If you put an inverter in front of the AND gate, you get the NAND gate etc. One of the common tool in specifying a gate function is the truth table. All possible combination of the inputs A, B ...
Digital Electronics Fundamental Logic Gates Truth Table Circuit Representation Boolean Expression A B Q A B Q 0 0 0 0 1 0 1 0
16 Ιαν 2024 · Digital logic gates are made to form RTL (resistor-transistor logic) or DTL (diode-transistor logic) circuits from discrete parts such as resistors, transistors, and diodes. The most “standard” personal digital logic gates along with their respective truth tables are described below.
Reduce the number of gates? Reduce the number of gate inputs? Reduce the number of cascaded levels of gates? 14 What is the optimal realization? How do we explore the tradeoffs? Logic minimization: Reduce number of gates and complexity Logic optimization: Maximize speed and/or minimize power CAD tools 15 Canonical forms Canonical forms
V OH=Logic state “1” or “True”. The highest possible output voltage. V OL=Logic state “0” or “False”. The Lowest possible output voltage. V REF=Voltage for which the inverter switches from Logic state “1” to Logic state “0”. The transition is abrupt. The simplest implementation of the inverter consists of a resistor and ...
