HEF4528BP

双单稳多谐振荡器 Dual monostable multivibrator

The is a dual retriggerable-resettable Monostable Multivibrator with an active low input nA and active high input nB, an active low clear direct input nCD, an output nQ and its complement nQ and two external timing component connecting pins nCEXT, always connected to ground and nREXT/CEXT. An external timing capacitor CEXT must be connected between nCEXT and nREXT/CEXT and an external resistor REXT must be connected between nREXT/CEXT and VDD. The output pulse duration is determined by the external timing components CEXT and REXT. A high-to-low transition on nA when nB is low or a low-to-high transition on nB when nA is high produces a positive pulse low-high-low on nQ and a negative pulse high-low-high on nQ if the nCD is high. A low on nCD forces nQ low, nQ high and inhibits any further pulses until nCD is high.

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Fully static operation

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Standardized symmetrical output characteristics

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Complies with JEDEC standard JESD 13-B