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DM74LS90

Contextual Info: NATIONAL SEMICOND -CLOGIC} 31E D • bSD112E DOt^aS? T ■ T -^ S -^ S -IS National Semiconductor DM74LS90/DM74LS93 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