74HC190N データシートの表示（PDF） - Philips Electronics

部品番号

コンポーネント説明

メーカー

74HC190N

Presettable synchronous BCD decade up/down counter

Philips Electronics 

Philips Semiconductors

Presettable synchronous BCD decade

up/down counter

Product specification

74HC/HCT190

Sequence

Load (present) to BCD seven;

count up to eight, nine, zero,

one and two;

inhibit;

count down to one, zero, nine,

eight and seven.

Fig.8 Typical load, count and inhibit sequence.

December 1990

Fig.9 Logic diagram.

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