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CD74HC221

具有復(fù)位功能的高速 CMOS 邏輯雙路單穩(wěn)態(tài)多諧振蕩器; ? Overriding RESET Terminates Output Pulse\n? Triggering from the Leading or Trailing Edge\n? Q and Q\\ Buffered Outputs\n? Separate Resets\n? Wide Range of Output-Pulse Widths\n? Schmitt Trigger on B Inputs\n? Fanout (Over Temperature Range) \n? Standard Outputs . . . . 10 LSTTL Loads\n? Bus Driver Outputs . . . . 15 LSTTL Loads\n \n? Wide Operating Temperature Range . . . –55°C to 125°C\n? Balanced Propagation Delay and Transition Times\n? Significant Power Reduction Compared to LSTTL Logic ICs\n? HC Types \n? 2V to 6V Operation\n? High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V\n \n? HCT Types \n? 4.5V to 5.5V Operation\n? Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)\n? CMOS Input Compatibility, Il 1μA at VOL, VOH\n \n Data sheet acquired from Harris Semiconductor;

The ?HC221 and CD74HCT221 are dual monostable multivibrators with reset. An external resistor (RX) and an external capacitor (CX) control the timing and the accuracy for the circuit. Adjustment of RX and CX provides a wide range of output pulse widths from the Q and Q\\ terminals. Pulse triggering on the B input occurs at a particular voltage level and is not related to the rise and fall time of the trigger pulse.\n\n Once triggered, the outputs are independent of further trigger inputs on A\\ and B. The output pulse can be terminated by a LOW level on the Reset (R)\\ pin. Trailing Edge triggering (A)\\ and leading-edge-triggering (B) inputs are provided for triggering from either edge of the input pulse. On power up, the IC is reset. If either Mono is not used each input (on the unused device) must be terminated either high or low.\n\n The minimum value of external resistance, RX, is typically 500. The minimum value of external capacitance, CX, is 0pF. The calculation for the pulse width is tW = 0.7 RXCX at VCC = 4.5V.

CD74HC221

High Speed CMOS Logic Dual Monostable Multivibrator with Reset

CD74HC221

High-Speed CMOS Logic Dual Monostable Multivibrator with Reset

CD74HC221

High-Speed CMOS Logic Dual Monostable Multivibrator with Reset

CD74HC221

High-Speed CMOS Logic Dual Monostable Multivibrator with Reset

CD74HC22106

QMOS 8 x 8 x 1 Crosspoint Switches with Memory Control

TheCD74HC22106isadigitallycontrolledanalogswitch whichutilizesilicon-gateCMOStechnology.The CD74HC22106featuresCMOSinput-voltage-level compatibility. TheMasterResethasaninternalpull-upresistorandis normallyusedwitha0.1μFcapacitor.Duringpowerupall switchesare

CD74HC22106E

QMOS 8 x 8 x 1 Crosspoint Switches with Memory Control

TheCD74HC22106isadigitallycontrolledanalogswitch whichutilizesilicon-gateCMOStechnology.The CD74HC22106featuresCMOSinput-voltage-level compatibility. TheMasterResethasaninternalpull-upresistorandis normallyusedwitha0.1μFcapacitor.Duringpowerupall switchesare

CD74HC221E

High-Speed CMOS Logic Dual Monostable Multivibrator with Reset

Features ?OverridingRESETTerminatesOutputPulse ?TriggeringfromtheLeadingorTrailingEdge ?QandQBufferedOutputs ?SeparateResets ?WideRangeofOutput-PulseWidths ?SchmittTriggeronBInputs ?Fanout(OverTemperatureRange) -StandardOutputs..............

CD74HC221E.A

Marking：CD74HC221E；Package：PDIP；High-Speed CMOS Logic Dual Monostable Multivibrator with Reset

Features ?OverridingRESETTerminatesOutputPulse ?TriggeringfromtheLeadingorTrailingEdge ?QandQBufferedOutputs ?SeparateResets ?WideRangeofOutput-PulseWidths ?SchmittTriggeronBInputs ?Fanout(OverTemperatureRange) -StandardOutputs..............

CD74HC221M

High-Speed CMOS Logic Dual Monostable Multivibrator with Reset

Features ?OverridingRESETTerminatesOutputPulse ?TriggeringfromtheLeadingorTrailingEdge ?QandQBufferedOutputs ?SeparateResets ?WideRangeofOutput-PulseWidths ?SchmittTriggeronBInputs ?Fanout(OverTemperatureRange) -StandardOutputs..............