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74LVC245A; 74LVCH245A

Octal bus transceiver; 3-state

The 74LVC245A; 74LVCH245A is an 8-bit transceiver with 3-state outputs. The device features an output enable (OE) and send/receive (DIR) for direction control. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of these devices as translators in mixed 3.3 V and 5 V environments.

Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.

This device is fully specified for partial power down applications using IOFF. The IOFF circuitry disables the output, preventing the potentially damaging backflow current through the device when it is powered down.

特性

  • Wide supply voltage range from 1.2 V to 3.6 V

  • CMOS low-power consumption

  • Direct interface with TTL levels

  • Overvoltage tolerant inputs to 5.5 V

  • Bus hold on all data inputs (74LVCH245A only)

  • IOFF circuitry provides partial Power-down mode operation

  • 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: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

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

  • 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 bitsfmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Rth(j-c) (K/W)Package name
74LVC245ABQProductionn.a.n.a.CMOS/LVTTL± 242.98175low-40~1257748DHVQFN20
74LVC245ABZProductionn.a.n.a.CMOS/LVTTL----low-40~125--DHXQFN20
74LVC245ADProductionn.a.n.a.CMOS/LVTTL± 242.98175low-40~1258460SO20
74LVC245APWProductionn.a.n.a.CMOS/LVTTL± 242.98175low-40~12510044TSSOP20
74LVCH245ABQProductionn.a.n.a.CMOS/LVTTL± 242.98175low-40~1257748DHVQFN20
74LVCH245ADProductionn.a.n.a.CMOS/LVTTL± 242.98175low-40~1258460SO20
74LVCH245APWProductionn.a.n.a.CMOS/LVTTL± 242.98175low-40~12510044TSSOP20

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))
74LVC245ABQ
DHVQFN20
(SOT764-1)
SOT764-1SOT764-1_115ActiveLVC245A LVC245A Standard Procedure Standard Procedure74LVC245ABQ,115
( 9352 735 95115 )
74LVC245ABZ
DHXQFN20
(SOT8020-1)
SOT8020-1SOT8020-1_115ActiveVC24574LVC245ABZX
( 9356 911 45115 )
74LVC245AD
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
SOT163-1_118Active74LVC245AD74LVC245AD,118
( 9352 115 10118 )
74LVC245APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveLVC245A LVC245A Standard Procedure Standard Procedure74LVC245APW,118
( 9352 115 40118 )
74LVCH245ABQ
DHVQFN20
(SOT764-1)
SOT764-1SOT764-1_115ActiveLVCH245A74LVCH245ABQ,115
( 9352 736 96115 )
74LVCH245AD
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
SOT163-1_118Active74LVCH245AD74LVCH245AD,118
( 9352 115 50118 )
74LVCH245APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveVCH245A74LVCH245APW,118
( 9352 115 70118 )

下表中的版本已停产。参见表 停产信息 了解更多信息。

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))
74LVC245APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_112Withdrawn / End-of-lifeLVC245A LVC245A Standard Procedure Standard Procedure74LVC245APW,112
( 9352 115 40112 )

停产信息

型号可订购的器件编号,(订购码(12NC))最后一次购买日期最后一次交货日期替代产品状态备注
74LVC245AD9352115101122021-12-312022-06-3074LVC245AD
    74LVC245APW9352115401122021-12-312022-06-3074LVC245APW
      74LVCH245AD9352115501122021-12-312022-06-3074LVCH245AD
        74LVCH245APW9352115701122021-12-312022-06-3074LVCH245APW

          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
          74LVC245ABQ74LVC245ABQ,11574LVC245ABQAlways Pb-free
          74LVC245ABZ74LVC245ABZX74LVC245ABZ
          74LVC245AD74LVC245AD,11874LVC245ADweek 30, 2004
          74LVC245APW74LVC245APW,11874LVC245APWweek 7, 2005
          74LVCH245ABQ74LVCH245ABQ,11574LVCH245ABQAlways Pb-free
          74LVCH245AD74LVCH245AD,11874LVCH245ADweek 30, 2004
          74LVCH245APW74LVCH245APW,11874LVCH245APWweek 7, 2005

          下表中的版本已停产。参见表 停产信息 了解更多信息。

          型号可订购的器件编号化学成分RoHSRHF指示符无铅转换日期
          74LVC245APW74LVC245APW,11274LVC245APWweek 7, 2005
          品质及可靠性免责声明

          文档 (12)

          文件名称标题类型日期
          74LVC_LVCH245AOctal bus transceiver; 3-stateData sheet2023-08-08
          AN263Power considerations when using CMOS and BiCMOS logic devicesApplication note2023-02-07
          AN11009Pin FMEA for LVC familyApplication note2019-01-09
          lvc245alvc245a IBIS modelIBIS model2021-02-02
          lvch245alvch245a IBIS modelIBIS model2013-04-07
          lvclvc Spice modelSPICE model2013-05-06
          SOT8020-1plastic, leadless dual in-line compatible thermal enhanced extreme thin quad flat package;no leads; 20 terminals; 0.4 mm pitch; body 2 mm x 3.2 mm x 0.48 mmPackage information2023-02-28
          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 bodyPackage information2022-06-21
          SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
          SOT360-1plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm bodyPackage information2022-06-21
          SOT163-1plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm bodyPackage information2022-06-20
          WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08

          支持

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          模型

          文件名称标题类型日期
          lvc245alvc245a IBIS modelIBIS model2021-02-02
          lvch245alvch245a IBIS modelIBIS model2013-04-07
          lvclvc Spice modelSPICE model2013-05-06

          样品

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