74LVCH244ABQ

Octal buffer/line driver; 3-state

The 74LVC244A; 74LVCH244A is an octal non-inverting buffer/line driver with 3-state outputs. The 3-state outputs are controlled by the output enable inputs 1OE and 2OE. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Schmitt-trigger action at all inputs makes the circuit highly tolerant for slower input rise and fall times.

Inputs can be driven from either 3.3 V or 5.0 V devices. In 3-state operation, outputs can handle 5 V. These features allow the use of these devices as translators in a mixed 3.3 V and 5 V environment.

The 74LVCH244A bus hold on data inputs eliminates the need for external pull-up resistors to hold unused inputs.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74LVCH244ABQ 74LVCH244ABQ,115 935275418115 SOT764-1 Order product

Features

  • 5 V tolerant inputs/outputs for interfacing with 5 V logic
  • Wide supply voltage range from 1.2 V to 3.6 V
  • CMOS low-power consumption
  • Direct interface with TTL levels
  • Inputs accept voltages up to 5.5 V
  • High-impedance when VCC = 0 V
  • Bus hold on all data inputs (74LVCH244A only)
  • Complies with JEDEC standard:
    • JESD8-7A (1.65 V to 1.95 V)
    • JESD8-5A (2.3 V to 2.7 V)
    • JESD8-C/JESD36 (2.7 V to 3.6 V)
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115B exceeds 200 V
    • CDM JESD22-C101E exceeds 1000 V
  • Specified from -40 °C to +85 °C and -40 °C to +125 °C

Target applications

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)fmax (MHz)No of bitsPower dissipation considerationsTamb (Cel)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74LVCH244ABQProduction1.2 - 3.6CMOS/LVTTL+/- 241758low-40~125789.350DHVQFN20

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74LVCH244ABQ74LVCH244ABQ,115
( 9352 754 18115 )
ActiveLVCH244A
DHVQFN20
(SOT764-1)
SOT764-1Reel 7" Q1/T1

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74LVCH244ABQ74LVCH244ABQ,11574LVCH244ABQAlways Pb-free123.83.872.58E811
Quality and reliability disclaimer

Documentation (6)

File nameTitleTypeDate
74LVC_LVCH244AOctal buffer/line driver; 3-stateData sheet2018-08-13
AN11009Pin FMEA for LVC familyApplication note2019-01-09
lvch244alvch244a IBIS modelIBIS model2013-04-07
lvclvc Spice modelSPICE model2013-05-06
SOT764-1_115DHVQFN20; Reel pack; SMD, 7" Q1/T1 Standard product orientation Orderable part number ending ,115 or X Ordering code (12NC) ending 115Packing2013-04-23
SOT764-1plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 20 terminals; 0.5 mm pitch; 4.5 mm x 2.5 mm x 1 mm bodyOutline drawing2018-11-14

Support

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Models

File nameTitleTypeDate
lvch244alvch244a IBIS modelIBIS model2013-04-07
lvclvc Spice modelSPICE model2013-05-06

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74LVCH244ABQ74LVCH244ABQ,115935275418115Reel 7" Q1/T1Order product

Sample

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