NLV14538BDG

The duration and accuracy of the output pulse are determined by the external timing components, specifically the capacitor (CX) and resistor (RX) values used in the circuit. The output pulse width (T) is calculated using the formula T = RX * CX, where RX is the resistor value in ohms and CX is the capacitor value in farads .

The purpose of the MC14538B is to function as a dual, retriggerable, resettable monostable multivibrator. It can be triggered from either edge of an input pulse and produces an accurate output pulse over a wide range of widths, with the duration and accuracy determined by external timing components, C X and R X. The output pulse width is calculated using the formula T = R X /C X . The trigger operation of the MC14538B involves the monostable being in a quiescent state before an input trigger occurs, with the Q output low and the timing capacitor C X fully charged to V DD. When a valid trigger is recognized, the capacitor C X rapidly discharges and then charges through the timing resistor R X, resulting in the generation of an output pulse . In the retrigger operation of the MC14538B, the device can be retriggered if a valid trigger occurs followed by another valid trigger before the Q output returns to the quiescent state. Any retrigger occurring after the initial trigger will extend the output pulse width . Therefore, the MC14538B serves the purpose of providing precise and customizable output pulses based on external timing components, with the ability to be retriggered for extended pulse durations

The operating temperature range for the MC14538B is -55 to +125 °C .