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74ALVT16821

20-bit bus interface D-type flip-flop; positive-edge trigger; 3-state

The 74ALVT16821 is a 20-bit positive-edge triggered D-type flip-flop with 3-state outputs.

The device can be used as two 10-bit flip-flops or one 20-bit flip-flop. The device features two clocks (1CP and 2CP) and two output enables (1OE and 2OE), each controlling 10-bits. The flip-flops will store the state of their individual D-inputs that meet the set-up and hold time requirements on the LOW-to-HIGH clock (nCP) transition. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Operation of the nOE input does not affect the state of the flip-flops. Bus hold data inputs eliminate the need for external pull-up resistors to define unused inputs

Features and benefits

  • Wide supply voltage range from 2.3 V to 3.6 V

  • Overvoltage tolerant inputs to 5.5 V

  • 20-bit positive-edge triggered register

  • BiCMOS high speed and output drive

  • Direct interface with TTL levels

  • Bus hold on data inputs

  • No bus current loading when output is tied to 5 V bus

  • Power-up 3-state

  • IOFF circuitry provides partial Power-down mode operation

  • Latch-up performance exceeds 500 mA per JESD 78 Class II Level B

  • ESD protection:

    • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

    • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V

  • Specified from -40 °C to 85 °C

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)fmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Package name
74ALVT16821DGGProduction2.3 - 3.6TTL-32/+641.8150medium-40~859321.0TSSOP56

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74ALVT16821DGG
TSSOP56
(SOT364-1) 		SOT364-1SSOP-TSSOP-VSO-WAVE
SOT364-1_118ActiveALVT1682174ALVT16821DGG,118
( 9352 100 10118 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74ALVT16821DGG935210010518
74ALVT16821DGG9352100105122021-12-312022-06-3074ALVT16821DGG
    74ALVT16821DGG935210010112

    Environmental information

    Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
    74ALVT16821DGG74ALVT16821DGG,11874ALVT16821DGGweek 2, 2006
    Quality and reliability disclaimer

    Documentation (6)

    File nameTitleTypeDate
    74ALVT1682120-bit bus interface D-type flip-flop; positive-edge trigger; 3-stateData sheet2024-06-25
    alvt16821alvt16821 IBIS modelIBIS model2013-04-07
    Nexperia_Selection_guide_2023Nexperia Selection Guide 2023Selection guide2023-05-10
    alvt16alvt16 Spice modelSPICE model2013-05-06
    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
    alvt16821alvt16821 IBIS modelIBIS model2013-04-07
    alvt16alvt16 Spice modelSPICE model2013-05-06

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