18-bit bus-interface D-type flip-flop with reset and enable; 3-state

The 74ALVCH16823 is a 18-bit edge-triggered flip-flop featuring separate D-type inputs for each flip-flop and 3-state outputs for bus oriented applications. Incorporates bushold data inputs which eliminate the need for external pull-up resistors to hold unused inputs. The 74ALVCH16823 consists of two sections of nine edge-triggered flip-flops. A clock (nCP) input, an output-enable (nOE) input, a master reset (nMR) input and a clock-enable (nCE) input are provided for each total 9-bit section.

With the clock-enable (nCE) input LOW, the D-type flip-flops will store the state of their individual nDn-inputs that meet the set-up and hold time requirements on the LOW-to-HIGH nCP transition. Taking nCE HIGH disables the clock buffer, thus latching the outputs. Taking the master reset (nMR) input LOW causes all the nQn outputs to go LOW independently of the clock.

When nOE is LOW, the contents of the flip-flops are available at the outputs. When the nOE is HIGH, the outputs go to the high impedance OFF-state. Operation of the nOE input does not affect the state of flip-flops.

Active bus hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74ALVCH16823DGG 74ALVCH16823DGG,11 935259030118 SOT364-1 Order product

Features and benefits

  • Wide supply voltage range from 1.2 V to 3.6 V

  • 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

  • Output drive capability 50 Ω transmission lines at 85°C

  • All data inputs have bushold

  • Complies with JEDEC standard no. 8-1A

  • Complies with JEDEC standards:

    • JESD8-5 (2.3 V to 2.7 V)

    • JESD8B/JESD36 (2.7 V to 3.6 V)

  • ESD protection:

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

    • CDM JESD22-C101E exceeds 1000 V


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
74ALVCH16823DGGProduction1.2 - 3.6TTL± 242.1350low-40~859321.0TSSOP56

PCB Symbol, Footprint and 3D Model

Model NameDescription


Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
( 9352 590 30118 )

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

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
( 9352 590 30518 )
Discontinued / End-of-lifeALVCH16823
( 9352 590 30512 )
Withdrawn / End-of-lifeALVCH16823SOT364-1_512

Discontinuation information

Type numberOrderable part numberOrdering codeLast time buy dateLast time delivery dateReplacement productStatusComments
74ALVCH16823DGG74ALVCH16823DGGS9352590305122021-12-312022-06-3074ALVCH16823DGGVersion withdrawal

Environmental information

Type numberOrderable part numberChemical contentRoHSRHF-indicator

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

Type numberOrderable part numberChemical contentRoHSRHF-indicator
Quality and reliability disclaimer

Documentation (5)

File nameTitleTypeDate
74ALVCH1682318-bit bus-interface D-type flip-flop with reset and enable; 3-stateData sheet2018-02-02
alvch16823alvch16823 IBIS modelIBIS model2013-04-07
74ALVCH16823DGG_Nexperia_Product_Reliability74ALVCH16823DGG Nexperia Product ReliabilityQuality document2023-05-29
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT364-1_118TSSOP56; Reel pack for SMD, 13"; Q1/T1 product orientationPacking information2020-02-26


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File nameTitleTypeDate
alvch16823alvch16823 IBIS modelIBIS model2013-04-07

PCB Symbol, Footprint and 3D Model

Model NameDescription

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingPacking quantityBuy online
74ALVCH16823DGG74ALVCH16823DGG,11935259030118SOT364-1_118- Order product


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