CD54HC4538,CD74HC4538,CD54HCT4

The ’HC4538 and ’HCT4538 are dual retriggerable/resettable monostable precision mulTIvibrators for fixed voltage TIming applicaTIons. An external resistor (R_X) and an external capacitor (C_X) control the TIming and the accuracy for the circuit. Adjustment of R_X and C_X 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 R_X and C_X.