74LS90.pdf DM74LS90 DM74LS93 Decade and Binary Counters June 1989 DM74LS90 DM74LS93 Decade and Binary Counters General Description Each of these monolithic counters contains four master- count pulses are applied to input A and the outputs are as slave flip-flops and additional gating to provide a divide-by- described in the appropriate truth table A symmetrical di- two counter and a three-stage binary counter for which the vide-by-ten count can be obtained from the ’LS90 counters count cyc……