Catalog
CMOS Dual Monostable Multivibrator
Key Features
• Retriggerable/resettable capabilityTrigger and reset propagation delays independent of RX, CXTriggering from leading or trailing edgeQ and Q\ buffered outputs availableSeparate resetsWide range of output-pulse widths100% tested for maximum quiescent current at 20 VMaximum input current of 1 uA at 18 V over full package-temperature range; 100 nA at 18 V and 25°CNoise margin (full package-temperature range):1 V at VDD= 5 V2 V at VDD= 10 V2.5 V at VDD= 15 V5-V, 10-V, and 15-V parametric ratingsStandardized, symmetrical output characteristicsMeets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices."Applications:Pulse delay and timingPulse shapingAstable multivibratorRetriggerable/resettable capabilityTrigger and reset propagation delays independent of RX, CXTriggering from leading or trailing edgeQ and Q\ buffered outputs availableSeparate resetsWide range of output-pulse widths100% tested for maximum quiescent current at 20 VMaximum input current of 1 uA at 18 V over full package-temperature range; 100 nA at 18 V and 25°CNoise margin (full package-temperature range):1 V at VDD= 5 V2 V at VDD= 10 V2.5 V at VDD= 15 V5-V, 10-V, and 15-V parametric ratingsStandardized, symmetrical output characteristicsMeets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices."Applications:Pulse delay and timingPulse shapingAstable multivibrator
Description
AI
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 RXand CXprovides a wide range of output pulse widths from the Q and Q\ terminals. The time delay from trigger input to output transition (trigger progagation delay) and the time delay from set input to output transition (reset progagation delay) are independent of RXand 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. See Table 1.
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 RXCXfor CX0.01 uF. Time periods as a function of RXfor values of CXand VDDare given in Fig. 8. Values of T vary from unit to unit and as a function of voltage, temperature, and RXCX.
The minimum value of external resistance, RX, is 5 k. The maximum value of external capacitance, CX, is 100uF. Fig.9 shows time periods as a function of CXfor values of RXand VDD.
The output pulse width has variations of ±2.5% typically, over the temperature range of -55°C to 125°C for CX= 1000 pF and RX= 100 k.
For power supply variations of ±5%, the output pulse width has variations of ±0.5% typically, for VDD= 10 V and 15 V and ±1% typically, for VDD= 5 V at CX= 1000 pF and RX= 5 k.
These types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic package (E suffix), 16-lead small-outline packages (M, M96, and MT suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).
The CD4098B is similar to type MC14528.
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 RXand CXprovides a wide range of output pulse widths from the Q and Q\ terminals. The time delay from trigger input to output transition (trigger progagation delay) and the time delay from set input to output transition (reset progagation delay) are independent of RXand 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. See Table 1.
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 RXCXfor CX0.01 uF. Time periods as a function of RXfor values of CXand VDDare given in Fig. 8. Values of T vary from unit to unit and as a function of voltage, temperature, and RXCX.
The minimum value of external resistance, RX, is 5 k. The maximum value of external capacitance, CX, is 100uF. Fig.9 shows time periods as a function of CXfor values of RXand VDD.
The output pulse width has variations of ±2.5% typically, over the temperature range of -55°C to 125°C for CX= 1000 pF and RX= 100 k.
For power supply variations of ±5%, the output pulse width has variations of ±0.5% typically, for VDD= 10 V and 15 V and ±1% typically, for VDD= 5 V at CX= 1000 pF and RX= 5 k.
These types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic package (E suffix), 16-lead small-outline packages (M, M96, and MT suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).
The CD4098B is similar to type MC14528.
