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HEF4043B

Quad R/S latch with 3-state outputs

The HEF4043B is a quad R/S latch with 3-state outputs with a common output enable input (OE). Each latch has an active HIGH set input (1S to 4S), an active HIGH reset input (1R to 4R) and an active HIGH 3-state output (1Q to 4Q).

When OE is HIGH, the latch output (nQ) is determined by the nR and nS inputs. When OE is LOW, the latch outputs are in the high impedance OFF-state. OE does not affect the state of the latch. The high impedance off-state feature allows common bussing of the outputs.

It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS (usually ground). Unused inputs must be connected to VDD, VSS, or another input.

Features and benefits

  • Fully static operation
  • 5 V, 10 V, and 15 V parametric ratings
  • Standardized symmetrical output characteristics
  • Specified from -40 °C to +85 °C
  • Complies with JEDEC standard JESD 13-B

Applications

  • Four-bit storage with output enable

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)No of bitsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
HEF4043BTProduction4.5 - 15CMOS± 2.4254medium-40~85835.642.1SO16

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
HEF4043BT
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1 CECCActiveHEF4043BTHEF4043BT,653
( 9333 728 80653 )

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
HEF4043BT
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Bulk Pack, CECCDiscontinued / End-of-lifeHEF4043BTHEF4043BT,652
( 9333 728 80652 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
HEF4043BT9333728806522021-12-312022-06-30HEF4043BT

    Quality, reliability & chemical content

    Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
    HEF4043BTHEF4043BT,653HEF4043BTweek 6, 200465.01.28.33E811

    The variants in the table below are discontinued. See the table Discontinuation information for more information.

    Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
    HEF4043BTHEF4043BT,652HEF4043BTweek 6, 200465.01.28.33E811
    Quality and reliability disclaimer

    Documentation (8)

    File nameTitleTypeDate
    HEF4043BQuad R/S latch with 3-state outputsData sheet2020-01-30
    AN11051Pin FMEA HEF4000 familyApplication note2019-01-09
    Nexperia_Selection_guide_2020Nexperia Selection Guide 2020Selection guide2020-01-31
    Nexperia_Selection_guide_2021Nexperia Selection Guide 2021Selection guide2021-01-08
    SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
    SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
    SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm bodyPackage information2021-01-06
    WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08

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