Datasheet DM74LS90 Equivalent ( PDF )

DM74LS90 Decade and Binary Counters August 1986 Revised March 2000 DM74LS90 Decade and Binary Counters General Description Each of these monolithic counters contains four masterslave flip-flops and additional gating to provide a divide-bytwo counter and a three-stage binary counter for which the count cycle length is divide-by-five for the DM74LS90. All of these counters have a gated zero reset

DM74LS90, DM74LS93 Decade and Binary Counters March 1998 DM74LS90, DM74LS93 Decade and Binary Counters General Description Each of these monolithic counters contains four master-slave flip-flops and additional gating to provide a divide-by-two counter and a three-stage binary counter for which the count cycle length is divide-by-five for the ’LS90 and divide-by-eight for the ’LS93. All of t