18-bit bus-interface D-type flip-flop

The 74ALVT162823 18-bit bus interface register is designed to eliminate the extra packages required to buffer existing registers and provide extra data width for wider data or address paths of buses carrying parity.

The 74ALVT162823 has two 9-bit wide buffered registers with clock enable (nCE) and master reset (nMR) which are ideal for parity bus interfacing in high microprogrammed systems.

The registers are fully edge-triggered. The state of each D input, one set-up time before the LOW-to-HIGH clock transition is transferred to the corresponding Q output of the flip-flop.

The 74ALVT162823 is designed with 30 Ω series resistance in both the pull-up and pull-down output structures. This design reduces line noise in applications such as memory address drivers, clock drivers, and bus receivers or transmitters.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74ALVT162823DGG 74ALVT162823DGGS 935261658512 SOT364-1 Order product
74ALVT162823DGG 74ALVT162823DGGY 935261658518 SOT364-1 Order product
74ALVT162823DGG 74ALVT162823DGG:11 935261658112 SOT364-1 Order product
74ALVT162823DGG 74ALVT162823DGG,11 935261658118 SOT364-1 Order product


  • Two sets of high speed parallel registers with positive edge-triggered D-type flip-flops
  • 5 V I/O compatible
  • Ideal where high speed, light loading or increased fan-in are required with MOS microprocessors
  • Bus hold data inputs eliminate the need for external pull-up resistors to hold unused inputs
  • Live insertion and extraction permitted
  • Power-up 3-state
  • Power-up reset
  • Output capability: +12 mA to -12 mA
  • Outputs include series resistance of 30 Ω making external termination resistors unnecessary
  • Latch-up protection:
    • JESD78: exceeds 500 mA
  • ESD protection:
    • MIL STD 883, method 3015: exceeds 2000 V
    • Machine Model: exceeds 200 V

Target applications


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
74ALVT162823DGGProduction2.3 - 3.6TTL± 123.0150medium-40~859321.0TSSOP56


Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
( 9352 616 58512 )
Tube in Drypack
( 9352 616 58518 )
ActiveALVT162823Reel 13" Q1/T1 in Drypack

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
Quality and reliability disclaimer

Documentation (6)

File nameTitleTypeDate
74ALVT16282318-bit bus-interface D-type flip-flop with reset and enable with 30 Ohm termination resistors; 3-stateData sheet2018-01-23
alvt162823alvt162823 IBIS modelIBIS model2013-04-07
alvt16alvt16 Spice modelSPICE model2013-05-06
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT364-1_118TSSOP56; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packing2013-04-15
SOT364-1plastic, thin shrink small outline package; 56 leads; 0.5 mm pitch; 14 mm x 6.1 mm x 1.2 mm bodyOutline drawing2018-10-18


If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.


File nameTitleTypeDate
alvt162823alvt162823 IBIS modelIBIS model2013-04-07
alvt16alvt16 Spice modelSPICE model2013-05-06

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74ALVT162823DGG74ALVT162823DGGS935261658512Tube in DrypackOrder product
74ALVT162823DGG74ALVT162823DGGY935261658518Reel 13" Q1/T1 in DrypackOrder product
74ALVT162823DGG74ALVT162823DGG:11935261658112Bulk PackOrder product
74ALVT162823DGG74ALVT162823DGG,11935261658118Reel 13" Q1/T1Order product


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