5490A

ETC1

ETC未分类制造商

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.

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5490AFM

ETC1

ETC未分类制造商

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.

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5490DMQB

NSC

美国国家半导体公司

Decade, and Binary Counters

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