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CD74HC4538-Q1,pdf(High-Speed C

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  • 上传时间:2021-07-16
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  • 标      签: Mult Logic

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The CD74HC4538 is a dual retriggerable/resettable precision monostable mulTIvibrator for fixed-voltage TIming applicaTIons. An external resistor (RX) and external capacitor (CX) control the TIming and accuracy for the circuit. Adjustment of RX and CX provides a wide range of output pulse widths from the Q and Q terminals. The propagation delay from trigger input-to-output transition and the propagation delay from reset input-to-output transition are independent of RX and CX. Leading-edge triggering (A) and trailing-edge triggering (B) inputs are provided for triggering from either edge of the input pulse. An unused A input should be tied to GND and an unused B input should be tied to VCC. On power up, the IC is reset.
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