Counters - special features

Pins used for special features:

• Enable (usually 'EN') : the count value can only be changed when the counter is enabled.
• Reset (usually 'R') : sets the count value to zero.
• Load (usually 'LD') : sets the count value to the value on the data input pins (which are on the left-hand side of the counter, and are usually labelled '1', '2', '4' and '8'.
• Carry output (usually 'C') : shows whether or not the counter has reached its maximum count value.
• Count direction : some counters can count up or down.

See also:

• Counters
• Counters - setting enable pin