DIGI$-210$

Lab $8$

A$-5.$ Draw a diagram $($unlabeled is fine$)$ of a $74$LS$221$ monostable wired in a "one$-$shot" or "pulse generator" configuration. See the $74$LS$221$ datasheet for details on how to do this. The pulse generator should have the appropriate $R$ and $C$ values to produce a $200$ ms ACTIVE LOW output pulse when triggered by a PGT clean edge from the switch de$-$bounce circuit in A$4.$ Label the output from the monostable as RESET so as to be consistent with the circuit diagram in B$-2.$

Show the calculation for your $R$ and $C$ values on the next page. Pay attention to the restrictions on the allowed values of $R$ and $C$ from the datasheet.