Electronic
Counter
•Electronic
counter counts
the number of pulses in a
given time.
•Electronic
counter is made from cascade
flip-flops.
•It is
use to store or display counting.
•Some
counter is use for frequency
measurement and
some are use to measure
period and
some are use for manual
counting which
are triggered manually.
•Counter
may be manufacture on separate
chip or with the combination of some
other ICs like
microprocessor or signal generator or ADC etc.
•Asynchronous
counter, Synchronous counter, Up counter, Down counter, BCD counter, Ring counter and Johnson counter are the types of electronic
counters.
•Asynchronous
counter the
bits in the counts do not changes with clock.
•Synchronous
counter all
the bits in the counts changes with clock.
•Up
counter
counts from zero to maximum value.
•Down
counter counts
from maximum
value to zero.
•BCD
counter
counts from 0000 (0) to 1001 (9).
•Johnson
counter is
the twisted
ring counter.
