Page 146 - Bebop to The Boolean Boogie An Unconventional Guide to Electronics Fundamentals, Components, and Processes
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ing Primitive Logic Functions to Build Move Complex Functions rn 727
serial-out
Figure 1 1-2 1. 5150 shift register
Figure 11-22. Modulo-16 binary counter
This particular example is based on positive-edge triggered 19-type flip-flops
with active-low -dear inputs. The four flip-flops are used to store the current
count value which, is displayed on the q[3:0] outputs. When the -clear input is
set to I (its inactive state), a positive-edge on the clock input causes the
counter to load thie next value in the count sequence,
