74LVC1G123

Single retriggerable monostable multivibrator; Schmitttrigger inputs

The 74LVC1G123 is a single retriggerable monostable multivibrator with Schmitt trigger inputs. Output pulse width is controlled by three methods:

  1. The basic pulse is programmed by selection of an external resistor (REXT) and capacitor (CEXT).
  2. Once triggered, the basic output pulse width may be extended by retriggering the gated active LOW-going edge input (A) or the active HIGH-going edge input (B). By repeating this process, the output pulse period (Q = HIGH) can be made as long as desired. Alternatively an output delay can be terminated at any time by a LOW-going edge on input CLR, which also inhibits the triggering.
  3. An internal connection from CLR to the input gates makes it possible to trigger the circuit by a HIGH-going signal at input CLR.

Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of these devices as translators in a mixed 3.3 V and 5 V environment. Schmitt trigger inputs, makes the circuit highly tolerant to slower input rise and fall times.

This device is fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the output, preventing the damaging backflow current through the device when it is powered down.

Features and benefits

  • Wide supply voltage range from 1.65 V to 5.5 V
  • High noise immunity
  • ±24 mA output drive (VCC = 3.0 V)
  • CMOS low power consumption
  • DC triggered from active HIGH or active LOW inputs
  • Retriggerable for very long pulses up to 100 % duty factor
  • Direct reset terminates output pulse
  • Schmitt trigger on all inputs
  • Complies with JEDEC standard:
    • JESD8-7 (1.65 V to 1.95 V)
    • JESD8-5 (2.3 V to 2.7 V)
    • JESD8-B/JESD36 (2.7 V to 3.6 V)
  • Power-on-reset on outputs
  • Latch-up performance exceeds 100 mA
  • Direct interface with TTL levels
  • Inputs accept voltages up to 5.5 V
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
    • CDM JESD22-C101E exceeds 1000 V
  • Multiple package options
  • Specified from -40 °C to +85 °C and -40 °C to +125 °C

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74LVC1G123DCProduction1.65 - 5.5CMOS/LVTTL± 323.5low-40~12520334.0113VSSOP8
74LVC1G123DPProduction1.65 - 5.5CMOS/LVTTL± 323.5low-40~12521419.8105TSSOP8
74LVC1G123GNProduction1.65 - 5.5CMOS/LVTTL± 323.5low-40~12523710.5147XSON8
74LVC1G123GSProduction1.65 - 5.5CMOS/LVTTL± 323.5low-40~12527510.7145XSON8
74LVC1G123GTProduction1.65 - 5.5CMOS/LVTTL± 323.5low-40~1253266.1156XSON8

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74LVC1G123DC
VSSOP8
(SOT765-1)
SOT765-1Reel 7" Q3/T4, ReverseActiveY374LVC1G123DC,125
( 9352 956 65125 )
74LVC1G123DP
TSSOP8
(SOT505-2)
SOT505-2Reel 7" Q3/T4, ReverseActiveY374LVC1G123DP,125
( 9352 956 67125 )
74LVC1G123GN
XSON8
(SOT1116)
SOT1116Reel 7” Q1/T1 or Q2/T3ActiveY374LVC1G123GN,115
( 9352 956 74115 )
74LVC1G123GS
XSON8
(SOT1203)
SOT1203Reel 7” Q1/T1 or Q2/T3ActiveY374LVC1G123GS,115
( 9352 956 75115 )
74LVC1G123GT
XSON8
(SOT833-1)
SOT833-1Reel 7” Q1/T1 or Q2/T3ActiveY374LVC1G123GT,115
( 9352 956 68115 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74LVC1G123DC74LVC1G123DC,12574LVC1G123DCAlways Pb-free62.51.11.05E511
74LVC1G123DP74LVC1G123DP,12574LVC1G123DPAlways Pb-free62.51.11.05E511
74LVC1G123GN74LVC1G123GN,11574LVC1G123GNAlways Pb-free62.51.11.05E511
74LVC1G123GS74LVC1G123GS,11574LVC1G123GSAlways Pb-free62.51.11.05E511
74LVC1G123GT74LVC1G123GT,11574LVC1G123GTAlways Pb-free62.51.11.05E511
Quality and reliability disclaimer

Documentation (12)

File nameTitleTypeDate
74LVC1G123Single retriggerable monostable multivibrator; Schmitt trigger inputsData sheet2021-04-20
lvc1g12374LVC1G123 IBIS modelIBIS model2015-04-02
Nexperia_Selection_guide_2020Nexperia Selection Guide 2020Selection guide2020-01-31
Nexperia_Selection_guide_2021Nexperia Selection Guide 2021Selection guide2021-01-08
SOT505-2plastic, thin shrink small outline package; 8 leads; 0.65 mm pitch; 3 mm x 3 mm x 1.1 mm bodyPackage information2020-04-21
SOT1203plastic, leadless extremely thin small outline package; 8 terminals; 0.35 mm pitch; 1.35 mm x 1 mm x 0.35 mm bodyPackage information2020-04-21
MAR_SOT1203MAR_SOT1203 TopmarkTop marking2013-06-03
SOT833-1plastic, leadless extremely thin small outline package; 8 terminals; 0.5 mm pitch; 1 mm x 1.95 mm x 0.5 mm bodyPackage information2020-04-21
MAR_SOT833MAR_SOT833 TopmarkTop marking2013-06-03
SOT765-1plastic, very thin shrink small outline package; 8 leads; 0.5 mm pitch; 2 mm x 2.3 mm x 1 mm bodyPackage information2020-04-21
SOT1116plastic, leadless extremely thin small outline package; 8 terminals; 0.3 mm pitch; 1.2 mm x 1 mm x 0.35 mm bodyPackage information2020-04-21
MAR_SOT1116MAR_SOT1116 TopmarkTop marking2013-06-03

Support

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Models

File nameTitleTypeDate
lvc1g12374LVC1G123 IBIS modelIBIS model2015-04-02

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