The ’90 is a 4-stage ripple counter containing a high speed flip-flop acting as a divide-by-two and three flip-flops connected as a divideby- five counter.

DESCRIPTION — The ’90 is a 4-stage ripple counter containing a high speed flip-flop acting as a divide-by-two and three flip-flops connected as a divideby- five counter. It can be connected to operate with a conventional BCD output pattern or it can be connected to provide a 50 duty cycle outpu

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ETCList of Unclassifed Manufacturers

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Decade and Binary Counters

文件：131.84 Kbytes 页数：10 Pages

NSC

国半

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 DM74LS90. Features ■Typical power dissipati

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Fairchild

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Decade and Binary Counters

文件：131.84 Kbytes 页数：10 Pages

NSC

国半