Topic 4 – Switching Circuits
... The inverter can be seen as changing the polarity of a signal from active-high to active-low. As such, the bubble can be drawn at either the input or the output. By convention, the bubble is always drawn with the active-low signal. If the input is active-high, and the inverter is changing it to acti ...
... The inverter can be seen as changing the polarity of a signal from active-high to active-low. As such, the bubble can be drawn at either the input or the output. By convention, the bubble is always drawn with the active-low signal. If the input is active-high, and the inverter is changing it to acti ...
NAND Gate is a Universal Gate
... A karnaugh map or k map is a pictorial form of truth table, in which the map diagram is made up of squares, with each squares representing one minterm of the function. Generally it is limited to six variable map (i.e) more then six variable involving expression are not reduced. ii) The map method is ...
... A karnaugh map or k map is a pictorial form of truth table, in which the map diagram is made up of squares, with each squares representing one minterm of the function. Generally it is limited to six variable map (i.e) more then six variable involving expression are not reduced. ii) The map method is ...
A super cut-off CMOS (SCCMOS) scheme for 0.5
... drops almost to due to large MOSFET turned off, logic circuits. Then, flip-flops in the leakage current of lowlogic circuits lose stored information in the stand-by lowmode. This is fatal in certain applications. One way to solve the problem at the system level is to send all information stored in t ...
... drops almost to due to large MOSFET turned off, logic circuits. Then, flip-flops in the leakage current of lowlogic circuits lose stored information in the stand-by lowmode. This is fatal in certain applications. One way to solve the problem at the system level is to send all information stored in t ...
D41022328
... [4]. For medium and high end design, where speed performance and energy efficiency are both important, that much aggressive voltage scaling is not acceptable, and thereby, a near-threshold voltage design is more suitable for achieving relatively high energy efficiency without severe speed degradatio ...
... [4]. For medium and high end design, where speed performance and energy efficiency are both important, that much aggressive voltage scaling is not acceptable, and thereby, a near-threshold voltage design is more suitable for achieving relatively high energy efficiency without severe speed degradatio ...
Study and Analysis of Universal Gates Using Stacking Low
... greatly on the circuit style, it can be divided, in general, into static and dynamic power. The static power is generated due to the DC bias current, as is the case in transistor-transistor-logic (TTL), emitter-coupled logic (ECL), and N-type MOS (NMOS) logic families, or due to leakage currents. In ...
... greatly on the circuit style, it can be divided, in general, into static and dynamic power. The static power is generated due to the DC bias current, as is the case in transistor-transistor-logic (TTL), emitter-coupled logic (ECL), and N-type MOS (NMOS) logic families, or due to leakage currents. In ...
i. introduction
... dynamic node enough to switch output buffer .The addition of the output inverter makes domino gates non-inverting. One can often design around this limitation, but some circuits cannot be implemented solely. In existing literature, 256-bit CLA & MCC adder circuit was designed using domino logic.To m ...
... dynamic node enough to switch output buffer .The addition of the output inverter makes domino gates non-inverting. One can often design around this limitation, but some circuits cannot be implemented solely. In existing literature, 256-bit CLA & MCC adder circuit was designed using domino logic.To m ...
Logic of Compound Statements
... • The only combination of circumstances in which a conditional sentence is false is when the hypothesis is true and the conclusion is false • A conditional statements is called vacuously true or true by default when its hypothesis is false • Among , , ~ and operations, has the ...
... • The only combination of circumstances in which a conditional sentence is false is when the hypothesis is true and the conclusion is false • A conditional statements is called vacuously true or true by default when its hypothesis is false • Among , , ~ and operations, has the ...
... architecture is having simple handshake cells and the handshake cells are embedded in the pipeline stage as normal logic cells. As a result, the speed of the ALU can be very fast. Pipeline is an important methodology to speed up the design [1]. It allows many operations to occur in parallel. Most pi ...
Digital Circuitry
... Initially not as fast as TTL since input capacitance is higher but can be minimised. Fanout: MOSFET is voltage controlled device unlike BJT. Each transistor draws vary little current allowing large fanout. However each additional gate input causes an increase output capacitance and the delay of the ...
... Initially not as fast as TTL since input capacitance is higher but can be minimised. Fanout: MOSFET is voltage controlled device unlike BJT. Each transistor draws vary little current allowing large fanout. However each additional gate input causes an increase output capacitance and the delay of the ...
a comparative analysis of different cmos logic design techniques for
... With increase in transistor density, area and power consumption also increases. The design engineers are striving to achieve more and more functionality at higher speed and low power, keeping area and cost low. Circuit design techniques also plays an important role in achieving high performance, low ...
... With increase in transistor density, area and power consumption also increases. The design engineers are striving to achieve more and more functionality at higher speed and low power, keeping area and cost low. Circuit design techniques also plays an important role in achieving high performance, low ...
Digital Design
... • More gates: NAND, NOR, XOR, XNOR also useful • Muxes and decoders: Additional useful combinational building blocks Digital Design Copyright © 2006 Frank Vahid ...
... • More gates: NAND, NOR, XOR, XNOR also useful • Muxes and decoders: Additional useful combinational building blocks Digital Design Copyright © 2006 Frank Vahid ...
Flip flops
... Their disadvantage is that for T=1 the circuit oscillates. c) Master-slave J-K flip flop In order to eliminate the oscillation a master slave structure has been proposed. This is based on two pipelined J-K flip flops. The first flip flop (the master) stores the data on the positive edge of the clock ...
... Their disadvantage is that for T=1 the circuit oscillates. c) Master-slave J-K flip flop In order to eliminate the oscillation a master slave structure has been proposed. This is based on two pipelined J-K flip flops. The first flip flop (the master) stores the data on the positive edge of the clock ...
Topic 4: Digital Circuits
... •Get bus contention when two outputs try to drive the bus to different states. • Value on the bus may be indeterminate; •Damage possible (a driving b!!) •On a PC data bus, can cause PC to crash ...
... •Get bus contention when two outputs try to drive the bus to different states. • Value on the bus may be indeterminate; •Damage possible (a driving b!!) •On a PC data bus, can cause PC to crash ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) ISSN: , PP: 55-59 www.iosrjournals.org
... Several types of CMOS STIs have been presented since the emerging of CMOS technology. However, they utilize large off-chip resistors and depletion transistors, which are notsuitable in recent technologies. Some new structures for CMOS analog inverter have been presented, which could be considered as ...
... Several types of CMOS STIs have been presented since the emerging of CMOS technology. However, they utilize large off-chip resistors and depletion transistors, which are notsuitable in recent technologies. Some new structures for CMOS analog inverter have been presented, which could be considered as ...
proceedings - CERN Indico
... test that automatically applies this form of TMR to most user designs. TMR does not come without a price. Obviously, designs are at least 3 times as large as a non TMR design, and suffer from speed degradation as well (25% in the counter example)[7]. In particular, feedback TMR degrades the speed of ...
... test that automatically applies this form of TMR to most user designs. TMR does not come without a price. Obviously, designs are at least 3 times as large as a non TMR design, and suffer from speed degradation as well (25% in the counter example)[7]. In particular, feedback TMR degrades the speed of ...
Low Power, Noise-Free Divided By 4/5 Counter Using Domino Logic
... Abstract: Reduction of propagation delay is very important for high speed applications. This paper gives an idea about the delay reduction on divided-by-4/5 counter. The delay is reduced by domino logic. Dynamic domino logic circuits are widely used in advanced digital Very Large Scale Integration ( ...
... Abstract: Reduction of propagation delay is very important for high speed applications. This paper gives an idea about the delay reduction on divided-by-4/5 counter. The delay is reduced by domino logic. Dynamic domino logic circuits are widely used in advanced digital Very Large Scale Integration ( ...
03-Boolean Algebra & Logic Design
... Use mechanical power Use hydraulic pressure Use electromechanical switches (electromagnet turns the switch on) Current technology: – Semiconductor transistors • A transistor can be made to conduct electricity depending on the input on the 3rd input – CMOS “gates” (actually, switches) We can now manu ...
... Use mechanical power Use hydraulic pressure Use electromechanical switches (electromagnet turns the switch on) Current technology: – Semiconductor transistors • A transistor can be made to conduct electricity depending on the input on the 3rd input – CMOS “gates” (actually, switches) We can now manu ...
Chapter 25
... – when the input voltage to a bipolar transistor is high the transistor turns ON and the output voltage is driven down to its saturation voltage which is about 0.1 V – however, saturation of the transistor results in the storage of excess charge in the base region – this increases the time taken to ...
... – when the input voltage to a bipolar transistor is high the transistor turns ON and the output voltage is driven down to its saturation voltage which is about 0.1 V – however, saturation of the transistor results in the storage of excess charge in the base region – this increases the time taken to ...
Digital electronics
Digital electronics or digital (electronic) circuits are electronics that handle digital signals- discrete bands of analog levels, rather than by continuous ranges (as used in analogue electronics). All levels within a band of values represent the same numeric value. Because of this discretization, relatively small changes to the analog signal levels due to manufacturing tolerance, signal attenuation or parasitic noise do not leave the discrete envelope, and as a result are ignored by signal state sensing circuitry.In most cases the number of these states is two, and they are represented by two voltage bands: one near a reference value (typically termed as ""ground"" or zero volts), and the other a value near the supply voltage. These correspond to the ""false"" (""0"") and ""true"" (""1"") values of the Boolean domain, respectively, yielding binary code.Digital techniques are useful because it is easier to get an electronic device to switch into one of a number of known states than to accurately reproduce a continuous range of values.Digital electronic circuits are usually made from large assemblies of logic gates, simple electronic representations of Boolean logic functions.