74LVC1G123DC

Single retriggerable monostable multivibrator; Schmitt trigger inputs


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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
All information on this product information page is subject to the subsequent disclaimers:

Parametrics of this product

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Power dissipation considerationsTamb (Cel)Rth(j-a) (K/W)Ψth(j-top) (K/W)Package name
74LVC1G123DCProduction1.65 - 5.5CMOS/LVTTL+/- 323.5low-40~12520651.0VSSOP8

Package

Type numberPackageOutline versionReflow-/Wave solderingPackingProduct statusMarkingOrderable part number, (Ordering code (12NC))
74LVC1G123DCVSSOP8
(SOT765-1)
sot765-1_posot765-1_fr
Reel Pack, 7" Q3/T4, ReverseActiveY374LVC1G123DC,125
( 9352 956 65125 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFR (FIT)MTBF (hour)MSLMSL LF
74LVC1G123DC74LVC1G123DC,12574LVC1G123DCAlways Pb-free123.83.872.58E811
Quality and reliability disclaimer

Quality and reliability disclaimer

Important Legal Notice on the product/generic quality information, No Warranty

NXP Semiconductors is providing this data for your convenience only. Please note however that NO WARRANTY, REPRESENTATION, GUARANTEE OR LEGALLY BINDING PRODUCT DESCRIPTION is provided by publishing this informational data, nor does NXP Semiconductors acknowledge or accept any liability related thereto. The documentation and data on NXP Semiconductors products can be found in the data sheets as officially published by NXP Semiconductors. For all purchase of products from NXP Semiconductors the NXP Semiconductors' General Terms and Conditions of Commercial Sale will apply.

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NXP Semiconductors' products are specifically designed and manufactured to be used within the electrical, thermal, mechanical and other parameters set forth in NXP Semiconductors' data sheets. Quality and reliability data provided by NXP Semiconductors, such as MTBF, MSL and FIT, is intended to be a non-binding estimate of product performance based upon diffusion process, history only. It does not imply that any performance levels reflected in such data can be met if the product is operated outside the conditions expressly stated in the latest published data sheet for a device or in your application.

The RoHS data provided hereunder is preliminary and non binding for NXP Semiconductors. NXP Semiconductors does not accept any liability related to this data.

NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage nor for any other use that is not explicitly agreed between the parties. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk.

Any use of NXP Semiconductors' products beyond the scope defined in the current NXP Semiconductors' data sheet voids all warranty responsibility of NXP Semiconductors with respect to such devices, and also voids all responsibility of NXP Semiconductors with respect to any applications assistance, product design, software performance or services of any kind that were or may have been performed in connection with the sale of any such devices.

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Documentation for this product

File nameTitleTypeFormatDate
74LVC1G123Single retriggerable monostable multivibrator; Schmitt trigger inputsData sheetpdf2013-11-27
AN10343MicroPak soldering informationApplication notepdf2010-12-30
AN212Package lead inductance considerations in high-speed applicationsApplication notepdf2013-03-13
AN10156Sorting through the low voltage logic mazeApplication notepdf2013-03-13
SOT765-1_125VSSOP8; Reel pack, reverse; SMD, 7" Q3/T4 Standard product orientation Orderable part number ending ,125 or H Ordering code (12NC) ending 125Packingpdf2013-05-03
sot765-1_frFootprint for reflow soldering SOT765-1Reflow solderingpdf2009-10-08
sot765-1_poplastic very thin shrink small outline package; 8 leads; body width 2.3 mmOutline drawingpdf2002-06-06

Ordering & availability

Type numberOrdering code (12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
74LVC1G123DC9352 956 6512574LVC1G123DC,125EUAvnet Express3,000300012/19/2014Buy online 
   EUFarnell Europe1,512119/12/2014Buy online 

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