×

74AVCH8T245

8-bit dual supply translating transceiver with configurable voltage translation; 3-state

The 74AVCH8T245 is an 8-bit, dual supply transceiver that enables bidirectional level translation. It features two 8-bit input-output ports (An and Bn), a direction control input (DIR), a output enable input (OE) and dual supply pins (VCC(A) and VCC(B)). Both VCC(A) and VCC(B) can be supplied at any voltage between 0.8 V and 3.6 V making the device suitable for translating between any of the low voltage nodes (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V). Pins An, OE and DIR are referenced to VCC(A) and pins Bn are referenced to VCC(B). A HIGH on DIR allows transmission from An to Bn and a LOW on DIR allows transmission from Bn to An. The output enable input (OE) can be used to disable the outputs so the buses are effectively isolated.

The device is fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the output, preventing any damaging backflow current through the device when it is powered down. In suspend mode when either VCC(A) or VCC(B) are at GND level, both An and Bn outputs are in the high-impedance OFF-state. The bus-hold circuitry on the powered-up side always stays active.

The 74AVCH8T245 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:
    • VCC(A): 0.8 V to 3.6 V
    • VCC(B): 0.8 V to 3.6 V
  • Complies with JEDEC standards:
    • JESD8-12 (0.8 V to 1.3 V)
    • JESD8-11 (0.9 V to 1.65 V)
    • JESD8-7 (1.2 V to 1.95 V)
    • JESD8-5 (1.8 V to 2.7 V)
    • JESD8-B (2.7 V to 3.6 V)
  • ESD protection:
    • HBM JESD22-A114E Class 3B exceeds 8000 V
    • MM JESD22-A115-A exceeds 200 V
    • CDM JESD22-C101C exceeds 1000 V
  • Maximum data rates:
    • 380 Mbit/s (≥ 1.8 V to 3.3 V translation)
    • 260 Mbit/s (≥ 1.1 V to 3.3 V translation)
    • 260 Mbit/s (≥ 1.1 V to 2.5 V translation)
    • 210 Mbit/s (≥ 1.1 V to 1.8 V translation)
    • 150 Mbit/s (≥ 1.1 V to 1.5 V translation)
    • 100 Mbit/s (≥ 1.1 V to 1.2 V translation)
  • Suspend mode
  • Bus hold on data inputs
  • Latch-up performance exceeds 100 mA per JESD 78 Class II
  • Inputs accept voltages up to 3.6 V
  • IOFF circuitry provides partial Power-down mode operation
  • Multiple package options
  • Specified from -40 °C to +85 °C and -40 °C to +125 °C

Parametrics

Type numberProduct statusVCC(A) (V)VCC(B) (V)Logic switching levelsOutput drive capability (mA)tpd (ns)No of bitsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74AVCH8T245BQProduction0.8 - 3.60.8 - 3.6CMOS/LVTTL± 122.18very low-40~125676.241DHVQFN24
74AVCH8T245PWProduction0.8 - 3.60.8 - 3.6CMOS/LVTTL± 122.18very low-40~125812.336TSSOP24

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74AVCH8T245BQ
DHVQFN24
(SOT815-1)
SOT815-1Reel 13" Q1/T1ActiveVCH8T24574AVCH8T245BQ,118
( 9352 845 92118 )
74AVCH8T245PW
TSSOP24
(SOT355-1)
SOT355-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveAVCH8T24574AVCH8T245PW:118
( 9352 845 94118 )

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))
74AVCH8T245PW
TSSOP24
(SOT355-1)
SOT355-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeAVCH8T24574AVCH8T245PW,112
( 9352 845 94112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74AVCH8T245BQ935284592115
74AVCH8T245PW9352845941122021-12-312022-06-3074AVCH8T245PW

    Quality, reliability & chemical content

    Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
    74AVCH8T245BQ74AVCH8T245BQ,11874AVCH8T245BQAlways Pb-free32.60.91.11E911
    74AVCH8T245PW74AVCH8T245PW:11874AVCH8T245PWAlways Pb-free32.60.91.11E911

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

    Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
    74AVCH8T245PW74AVCH8T245PW,11274AVCH8T245PWAlways Pb-free32.60.91.11E911
    Quality and reliability disclaimer

    Documentation (7)

    File nameTitleTypeDate
    74AVCH8T2458-bit dual supply translating transceiver with configurable voltage translation; 3-stateData sheet2017-05-03
    Nexperia_document_guide_Logic_translatorsNexperia Logic TranslatorsBrochure2021-04-12
    avch8t24574AVCH8T245 IBIS modelIBIS model2019-01-09
    Nexperia_Selection_guide_2022Nexperia Selection Guide 2022Selection guide2022-01-05
    SOT355-1plastic, thin shrink small outline package; 24 leads; 0.65 mm pitch; 7.8 mm x 4.4 mm x 1.1 mm bodyPackage information2020-04-21
    SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
    SOT815-1plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 24 terminals; 0.5 mm pitch; 5.5 mm x 3.5 mm x 1 mm bodyPackage information2021-08-17

    Support

    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.

    Models

    File nameTitleTypeDate
    avch8t24574AVCH8T245 IBIS modelIBIS model2019-01-09

    Ordering, pricing & availability

    Sample

    As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

    Sample orders normally take 2-4 days for delivery.

    If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.