The MC14538B is a dual, retriggerable, resettable monostable multivibrator. It may be triggered from either edge of an input pulse, and produces an accurate output pulse over a wide range of widths, the duration and accuracy of which are determined by the external timing components, CXand RX. Output Pulse Width T = RX ° CX(secs)
RX=Ω
CX = Farads

FEATUREs
•Unlimited Rise and Fall Time Allowed on the A Trigger Input
•Pulse Width Range = 10µs to 10 s
•Latched Trigger Inputs
•Separate Latched Reset Inputs
•3.0 Vdc to 18 Vdc Operational Limits
•Triggerable from Positive (A Input) or Negative−Going Edge (B−Input)
•Capable of Driving Two Low−Power TTL Loads or One Low−Power Schottky TTL Load Over the Rated Temperature Range
•Pin−for−pin Compatible with MC14528B and CD4528B (CD4098)
•Use the MC54/74HC4538A for Pulse Widths Less Than 10 s with Supplies Up to 6 V
•Pb−Free Packages are Available