In case of BJT for example, the input characteristics can be described with \$I_B=f(V_{BE})\$ and output characteristics with \$I_C=f(V_{CE})\$.
How can the input and output characteristics be described in case of TTL gates?
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\$\begingroup\$ \$I_C\$ is a function of both \$V_{CE}\$ and \$I_B\$ in a BJT. More than just \$V_{CE}\$ alone. \$\endgroup\$– HearthCommented Nov 23, 2018 at 0:30
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\$\begingroup\$ Yes, that's true. \$\endgroup\$– A6EECommented Nov 23, 2018 at 0:42
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1 Answer
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You may model a TTL gate, at least the original low-power devices as
simulate this circuit – Schematic created using CircuitLab
answered Nov 23, 2018 at 1:29