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74ALVCH16843

18-bit bus-interface D-type latch; 3-state

The 74ALVCH16843 has two 9-bit D-type latch featuring separate D-type inputs for each latch and 3-State outputs for bus oriented applications. The two sections of each register are controlled independently by the latch enable (nLE) clear (nCLR) preset (nPRE) and output enable (nOE) control gates.

When nOE is LOW, the data in the registers appear at the outputs. When nOE is HIGH, the outputs are in the high impedance OFF state. Operation of the nOE input does not affect the state of the flip-flops.

The 74ALVCH16843 has active bus hold circuitry which is provided to hold unused or floating data inputs at a valid logic level. This feature eliminates the need for external pull-up or pull-down resistors.

Features and benefits

  • Wide supply voltage range of 1.2 V to 3.6 V

  • Complies with JEDEC standard no. 8-1A.

  • CMOS low power consumption

  • Direct interface with TTL levels

  • Current drive ±24 mA at 3.0 V

  • MULTIBYTE™™ flow-through standard pin-out architecture

  • Low inductance multiple VCC and GND pins for minimum noise and ground bounce

  • All data inputs have bus hold

  • Output drive capability 50 Ω transmission lines @ 85 °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)Package name
74ALVCH16843DGGProduction1.2 - 3.6LVTTL± 242.1low-40~859321.0TSSOP56

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74ALVCH16843DGG
TSSOP56
(SOT364-1)
SOT364-1SSOP-TSSOP-VSO-WAVE
SOT364-1_118ActiveALVCH1684374ALVCH16843DGG,11
( 9352 591 10118 )

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))
74ALVCH16843DGG
TSSOP56
(SOT364-1)
SOT364-1SSOP-TSSOP-VSO-WAVE
SOT364-1_518Discontinued / End-of-lifeALVCH1684374ALVCH16843DGGY
( 9352 591 10518 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74ALVCH16843DGG935259110518
74ALVCH16843DGG9352591105122021-12-312022-06-3074ALVCH16843DGG
    74ALVCH16843DGG935259110112

    Environmental information

    Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
    74ALVCH16843DGG74ALVCH16843DGG,1174ALVCH16843DGGweek 2, 2006

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

    Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
    74ALVCH16843DGG74ALVCH16843DGGY74ALVCH16843DGGAlways Pb-free
    Quality and reliability disclaimer

    Documentation (5)

    File nameTitleTypeDate
    74ALVCH1684318-bit bus-interface D-type latch; 3-stateData sheet2017-11-21
    alvch16843alvch16843 IBIS modelIBIS model2013-04-07
    Nexperia_Selection_guide_2023Nexperia Selection Guide 2023Selection guide2023-05-10
    SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
    SOT364-1plastic, thin shrink small outline package; 56 leads; 0.5 mm pitch; 14 mm x 6.1 mm x 1.2 mm bodyPackage information2022-06-23

    Support

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    Models

    File nameTitleTypeDate
    alvch16843alvch16843 IBIS modelIBIS model2013-04-07

    Ordering, pricing & availability

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