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74HCT123DB

Dual retriggerable monostable multivibrator with reset

GENERALDESCRIPTION The74HC/HCT123arehigh-speedSi-gateCMOSdevicesandarepincompatiblewithlowpowerSchottkyTTL(LSTTL).TheyarespecifiedincompliancewithJEDECstandardno.7A. FEATURES ?DCtriggeredfromactiveHIGHor activeLOWinputs ?Retriggerableforverylong

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74HCT123DB

Dual retriggerable monostable multivibrator with reset

Generaldescription The74HC123;74HCT123arehigh-speedSi-gateCMOSdevicesandarepincompatiblewithLow-powerSchottkyTTL(LSTTL).TheyarespecifiedincompliancewithJEDECstandardno.7A. The74HC123;74HCT123aredualretriggerablemonostablemultivibratorswithoutputpulsewidthco

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74HCT123DB

Dual retriggerable monostable multivibrator with reset

GENERALDESCRIPTION The74HC/HCT123arehigh-speedSi-gateCMOSdevicesandarepincompatiblewithlowpowerSchottkyTTL(LSTTL).TheyarespecifiedincompliancewithJEDECstandardno.7A. FEATURES ?DCtriggeredfromactiveHIGHor activeLOWinputs ?Retriggerableforverylong

PHI

74HCT123DB

Dual retriggerable monostable multivibrator with reset; ? DC triggered from active HIGH or active LOW inputs\n? Retriggerable for very long pulses up to 100 % duty factor\n? Direct reset terminates output pulse\n? Schmitt-trigger action on all inputs except for the reset input\n? ESD protection:? HBM JESD22-A114F exceeds 2000 V\n? MM JESD22-A115-A exceeds 200 V\n\n? Specified from -40 ℃ to +85 ℃ and from -40 ℃ to +125 ℃\n;

The 74HC123; 74HCT123 are high-speed Si-gate CMOS devices and are pin compatible with Low-power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.\n The 74HC123; 74HCT123 are dual retriggerable monostable multivibrators with output pulse width control by three methods:\nThe basic pulse is programmed by selection of an external resistor (REXT) and capacitor (CEXT).Once triggered, the basic output pulse width may be extended by retriggering the gated active LOW-going edge input (nA) or the active HIGH-going edge input (nB). By repeating this process, the output pulse period (nQ = HIGH, nQ = LOW) can be made as long as desired. Alternatively an output delay can be terminated at any time by a LOW-going edge on input nRD, which also inhibits the triggering.An internal connection from nRD to the input gates makes it possible to trigger the circuit by a HIGH-going signal at input nRD as shown in the function table. Schmitt-trigger action in the nA and nB inputs, makes the circuit highly tolerant to slower input rise and fall times.\n The 74HC123; 74HCT123 are identical to the 74HC423; 74HCT423 but can be triggered via the reset input.\n

74HCT123DB,112

Package：16-SSOP（0.209"，5.30mm 寬）；包裝：卷帶（TR）剪切帶（CT）Digi-Reel? 得捷定制卷帶 類別：集成電路（IC） 多諧振蕩器 描述：IC MULTIVIBRATOR 77NS 16SSOP

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74HCT123DB,118

Package：16-SSOP（0.209"，5.30mm 寬）；包裝：卷帶（TR）剪切帶（CT）Digi-Reel? 得捷定制卷帶 類別：集成電路（IC） 多諧振蕩器 描述：IC MULTIVIBRATOR 77NS 16SSOP

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