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74LVC2T45; 74LVCH2T45

Dual supply translating transceiver; 3-state

The 74LVC2T45; 74LVCH2T45 are dual bit, dual supply translating transceivers with 3-state outputs that enable bidirectional level translation. They feature two 2-bits input-output ports (nA and nB), a direction control input (DIR) and dual supply pins (VCC(A) and VCC(B)). Both VCC(A) and VCC(B) can be supplied at any voltage between 1.2 V and 5.5 V making the device suitable for translating between any of the low voltage nodes (1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V and 5.0 V). Pins nA and DIR are referenced to VCC(A) and pins nB are referenced to VCC(B). A HIGH on DIR allows transmission from nA to nB and a LOW on DIR allows transmission from nB to nA.

The devices are 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 A port and B port are in the high-impedance OFF-state.

Active bus hold circuitry in the 74LVCH2T45 holds unused or floating data inputs at a valid logic level.

特性

  • Wide supply voltage range:

    • VCC(A): 1.2 V to 5.5 V

    • VCC(B): 1.2 V to 5.5 V

  • High noise immunity

  • Complies with JEDEC standards:

    • JESD8-7 (1.2 V to 1.95 V)

    • JESD8-5 (1.8 V to 2.7 V)

    • JESD8C (2.7 V to 3.6 V)

    • JESD36 (4.5 V to 5.5 V)

  • Maximum data rates:

    • 420 Mbps (3.3 V to 5.0 V translation)

    • 210 Mbps (translate to 3.3 V))

    • 140 Mbps (translate to 2.5 V)

    • 75 Mbps (translate to 1.8 V)

    • 60 Mbps (translate to 1.5 V)

  • Suspend mode

  • Latch-up performance exceeds 100 mA per JESD 78 Class II

  • ±24 mA output drive (VCC = 3.0 V)

  • Inputs accept voltages up to 5.5 V

  • Low power consumption: 16 μA maximum ICC

  • IOFF circuitry provides partial Power-down mode operation

  • ESD protection:

    • HBM: ANSI/ESDA/JEDEC JS-001 class 3A exceeds 4000 V

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

  • Multiple package options

  • Specified from -40 °C to +85 °C and -40 °C to +125 °C

参数类型

Type numberProduct statusVCC(A) (V)VCC(B) (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Nr of bitsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74LVC2T45DCProduction1.2 - 5.51.2 - 5.5CMOS/LVTTL± 242.52low-40~12519830.6107VSSOP8
74LVC2T45GNProduction1.2 - 5.51.2 - 5.5CMOS/LVTTL± 242.52low-40~1252248.3137XSON8
74LVC2T45GSProduction1.2 - 5.51.2 - 5.5CMOS/LVTTL± 242.52low-40~1252618.5136XSON8
74LVC2T45GTProduction1.2 - 5.51.2 - 5.5CMOS/LVTTL± 242.52low-40~1253075.1144XSON8
74LVCH2T45DCProduction1.2 - 5.51.2 - 5.5CMOS/LVTTL± 242.52low-40~12519830.6107VSSOP8
74LVCH2T45GNProduction1.2 - 5.51.2 - 5.5CMOS/LVTTL± 242.52low-40~1252248.3137XSON8
74LVCH2T45GSProduction1.2 - 5.51.2 - 5.5CMOS/LVTTL± 242.52low-40~1252618.5136XSON8
74LVCH2T45GTProduction1.2 - 5.51.2 - 5.5CMOS/LVTTL± 242.52low-40~1253075.1144XSON8

封装

型号封装尺寸版本回流焊/波峰焊包装状态标示可订购的器件编号，（订购码(12NC)）
74LVC2T45DC
VSSOP8
(SOT765-1) 		SOT765-1SOT765-1_125ActiveV4574LVC2T45DC,125
( 9352 847 57125 )
74LVC2T45GN
XSON8
(SOT1116) 		SOT1116REFLOW_BG-BD-1
SOT1116_115ActiveV574LVC2T45GN,115
( 9352 922 51115 )
74LVC2T45GS
XSON8
(SOT1203) 		SOT1203REFLOW_BG-BD-1
SOT1203_115ActiveV574LVC2T45GS,115
( 9352 928 04115 )
74LVC2T45GT
XSON8
(SOT833-1) 		SOT833-1SOT833-1_115ActiveV4574LVC2T45GT,115
( 9352 847 58115 )
74LVCH2T45DC
VSSOP8
(SOT765-1) 		SOT765-1SOT765-1_125ActiveX4574LVCH2T45DC,125
( 9352 847 61125 )
74LVCH2T45GN
XSON8
(SOT1116) 		SOT1116REFLOW_BG-BD-1
SOT1116_115ActiveX574LVCH2T45GN,115
( 9352 922 59115 )
74LVCH2T45GS
XSON8
(SOT1203) 		SOT1203REFLOW_BG-BD-1
SOT1203_115ActiveX574LVCH2T45GS,115
( 9352 928 16115 )
74LVCH2T45GT
XSON8
(SOT833-1) 		SOT833-1SOT833-1_115ActiveX4574LVCH2T45GT,115
( 9352 847 62115 )

环境信息

型号可订购的器件编号化学成分RoHSRHF指示符无铅转换日期
74LVC2T45DC74LVC2T45DC,12574LVC2T45DCAlways Pb-free
74LVC2T45GN74LVC2T45GN,11574LVC2T45GNAlways Pb-free
74LVC2T45GS74LVC2T45GS,11574LVC2T45GSAlways Pb-free
74LVC2T45GT74LVC2T45GT,11574LVC2T45GTAlways Pb-free
74LVCH2T45DC74LVCH2T45DC,12574LVCH2T45DCAlways Pb-free
74LVCH2T45GN74LVCH2T45GN,11574LVCH2T45GNAlways Pb-free
74LVCH2T45GS74LVCH2T45GS,11574LVCH2T45GSAlways Pb-free
74LVCH2T45GT74LVCH2T45GT,11574LVCH2T45GTAlways Pb-free
品质及可靠性免责声明

文档 (15)

文件名称标题类型日期
74LVC_LVCH2T45Dual supply translating transceiver; 3-stateData sheet2023-08-09
AN10161PicoGate Logic footprintsApplication note2002-10-29
AN11009Pin FMEA for LVC familyApplication note2019-01-09
Nexperia_document_guide_Logic_translatorsNexperia Logic TranslatorsBrochure2021-04-12
lvch2t45lvch2t45 IBIS modelIBIS model2013-04-07
lvc2t45lvc2t45 IBIS modelIBIS model2013-04-07
MAR_SOT1203MAR_SOT1203 TopmarkTop marking2013-06-03
SOT1203plastic, leadless extremely thin small outline package; 8 terminals; 0.35 mm pitch; 1.35 mm x 1 mm x 0.35 mm bodyPackage information2022-06-03
REFLOW_BG-BD-1Reflow soldering profileReflow soldering2021-04-06
MAR_SOT833MAR_SOT833 TopmarkTop marking2013-06-03
SOT833-1plastic, leadless extremely thin small outline package; 8 terminals; 0.5 mm pitch; 1 mm x 1.95 mm x 0.5 mm bodyPackage information2022-06-03
SOT765-1plastic, very thin shrink small outline package; 8 leads; 0.5 mm pitch; 2 mm x 2.3 mm x 1 mm bodyPackage information2022-06-03
MAR_SOT1116MAR_SOT1116 TopmarkTop marking2013-06-03
SOT1116plastic, leadless extremely thin small outline package; 8 terminals; 0.3 mm pitch; 1.2 mm x 1 mm x 0.35 mm bodyPackage information2022-06-02
REFLOW_BG-BD-1Reflow soldering profileReflow soldering2021-04-06

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模型

文件名称标题类型日期
lvch2t45lvch2t45 IBIS modelIBIS model2013-04-07
lvc2t45lvc2t45 IBIS modelIBIS model2013-04-07

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