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CD4098BE CD4098B CD4098 4098 CMOS Dual Monostable Multivibrator Breadboard-Friendly IC DIP-16 (Pack of 20)

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  • The CD4098B dual monostable multivibrator provides stable retriggerable/resettable one-shot operation for any fixed-voltage timing application
  • Retriggerable/resettable capability, Trigger and reset propagation delays independent of RX, CX, Triggering from leading or trailing edge, Q and Q buffered outputs available
  • Separate resets, Wide range of output-pulse widths, 100% tested for maximum quiescent current at 20 V, Maximum input current of 1 uA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C, Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices."
  • Noise margin (full package-temperature range): 1 V at VDD = 5 V 2 V at VDD = 10 V 2.5 V at VDD = 15 V, 5-V, 10-V, and 15-V parametric ratings, Standardized, symmetrical output characteristics
  • Example Applications: Pulse delay and timing, Pulse shaping, Astable multivibrator


The CD4098B dual monostable multivibrator provides stable retriggerable/resettable one-shot operation for any fixed-voltage timing application.
An external resistor (RX) and an external capacitor (CX) control the timing for the circuit. Adjustment of RX and CX provides a wide range of output pulse widths from the Q and Q\ terminals. The time delay from trigger input to output transition (trigger propagation delay) and the time delay from set input to output transition (reset propagation delay) are independent of RX and CX.
Leading-edge-triggering (+TR) and trailing-edge-triggering (-TR) input are provided for triggering from either edge of an input pulse. An unused +TR input should be tied to VSS. An unused (-TR) input should be tied to VDD. A RESET (on low level) is provided for immediate termination of the output pulse or to prevent output pulses when power is turned on. An unused RESET input should be tied to VDD. However, if an entire section of the CD4098B is not used, its RESET should be tied to VSS.
In normal operation the circuit triggers (extends the output pulse one period) on the application of each new trigger pulse. For operation in the non-retriggerable mode, Q\ is connected to -TR when leading-edge triggering (+TR) is used or Q is connected to +TR when trailing-edge triggering (-TR) is used.
The time period (T) for this multivibrator can be approximated by: TX= ½ RXCX for CX 0.01 uF. Time periods as a function of RX for values of CX and VDD are given in Fig. 8. Values of T vary from unit to unit and as a function of voltage, temperature, and RXCX.