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Practical digital circuits
Published in T.J. Stonham, Digital Logic Techniques, 2017
Fan-out is the number of logic inputs that can be driven from the output of a logic gate. A typical fan-out for a TTL gate is 10. However, with CMOS logic, owing to the very high input impedance of the field effect transistor (1011 Ω), the fan-out is potentially infinite. In practice, however, owing to capacitive loading of the driving output by the inputs, the fan-out is generally restricted to a maximum of 50.
Combinational Circuits
Published in Sajjan G. Shiva, Introduction to Logic Design, 2018
A standard TTL gate has a fan-out of 10. A standard TTL buffer can drive up to 30 standard TTL gates. Various versions of TTL will be described later in Chapter 10. Depending on the version, the fan-out ranges between 10 and 20. Typical fan-out of ECL gates is 25, and that of CMOS is 50.
Assessing the changeability of component-based system design: a controlled experiment
Published in International Journal of Computers and Applications, 2022
Majdi Abdellatief, Abu Bakar Md Sultan, Abdul Azim Abdul Ghani, Abubaker Wahaballa
Fan-in is defined with respect to each interface as ‘Fan-in of an interface “I” is the sum of inter-flows into an interface “I” plus the number of intra-flows that an interface “I” retrieves.’ But, Fan-out is defined as ‘Fan-out of an interface “I” is the sum of inter-flows from an interface “I” plus the number of intra-flows that an interface “I” updates.’
Computational Investigation of Quantum Transport to Design Single-Strand DNA Logic Gate Using Silicon Carbide Nanotube Electrode
Published in IETE Journal of Research, 2022
Pradipta Roy, Debarati Dey, Debashis De
Fan-out is the maximum number of digital inputs that the output of the single logic gate can feed. Maximum number of Fan-out depends on the length of ssDNA chain. Increasing the length of the chain will increase the number of Fan-out. In this study, the maximum number of Fan-out is 10.