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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 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

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
74LVC245ABQProduction1.2 - 3.6n.a.CMOS/LVTTL± 242.98175low-40~1257748DHVQFN20
74LVC245ABZProduction1.2 - 3.6n.a.CMOS/LVTTLlow-40~125DHXQFN
74LVC245ADProduction1.2 - 3.6n.a.CMOS/LVTTL± 242.98175low-40~1258460SO20
74LVC245APWProduction1.2 - 3.6n.a.CMOS/LVTTL± 242.98175low-40~12510044TSSOP20
74LVCH245ABQProduction1.2 - 3.6n.a.CMOS/LVTTL± 242.98175low-40~1257748DHVQFN20
74LVCH245ADProduction1.2 - 3.6n.a.CMOS/LVTTL± 242.98175low-40~1258460SO20
74LVCH245APWProduction1.2 - 3.6n.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)
Reel 7” Q1/T1 or Q2/T3ActiveLVC245A LVC245A Standard Procedure Standard Procedure74LVC245ABQ,115
( 9352 735 95115 )
74LVC245ABZ
DHXQFN
(SOT8020-1)
Reel 7” Q1/T1 or Q2/T3ActiveVC24574LVC245ABZX
( 9356 911 45115 )
74LVC245AD
SO20
(SOT163-1)
WAVE_BG-BD-1
Reel 13" Q1/T1Active74LVC245AD74LVC245AD,118
( 9352 115 10118 )
74LVC245APW
TSSOP20
(SOT360-1)
SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveLVC245A LVC245A Standard Procedure Standard Procedure74LVC245APW,118
( 9352 115 40118 )
74LVCH245ABQ
DHVQFN20
(SOT764-1)
Reel 7” Q1/T1 or Q2/T3ActiveLVCH245A74LVCH245ABQ,115
( 9352 736 96115 )
74LVCH245AD
SO20
(SOT163-1)
WAVE_BG-BD-1
Reel 13" Q1/T1Active74LVCH245AD74LVCH245AD,118
( 9352 115 50118 )
74LVCH245APW
TSSOP20
(SOT360-1)
SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveVCH245A74LVCH245APW,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))
74LVC245AD
SO20
(SOT163-1)
WAVE_BG-BD-1
Bulk PackWithdrawn / End-of-life74LVC245AD74LVC245AD,112
( 9352 115 10112 )
74LVC245APW
TSSOP20
(SOT360-1)
SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeLVC245A LVC245A Standard Procedure Standard Procedure74LVC245APW,112
( 9352 115 40112 )
74LVCH245APW
TSSOP20
(SOT360-1)
SSOP-TSSOP-VSO-WAVE
Bulk PackWithdrawn / End-of-lifeVCH245A74LVCH245APW,112
( 9352 115 70112 )

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DN通知状态备注
74LVC245AD9352115101122021-12-312022-06-3074LVC245ADDN CN-202106011DN
    74LVC245APW9352115401122021-12-312022-06-3074LVC245APWDN CN-202106011DN
      74LVCH245AD9352115501122021-12-312022-06-3074LVCH245ADDN CN-202106011DN
        74LVCH245APW9352115701122021-12-312022-06-3074LVCH245APWDN CN-202106011DN

          品质、可靠性及化学成分

          型号可订购的器件编号化学成分RoHS / RHF无铅转换日期EFRIFRMTBF(小时)MSLMSL无铅
          74LVC245ABQ74LVC245ABQ,11574LVC245ABQAlways Pb-free20.00.61.98E911
          74LVC245ABZ74LVC245ABZX74LVC245ABZ20.00.61.98E911
          74LVC245AD74LVC245AD,11874LVC245ADweek 30, 200420.00.61.98E911
          74LVC245APW74LVC245APW,11874LVC245APWweek 7, 200520.00.61.98E911
          74LVCH245ABQ74LVCH245ABQ,11574LVCH245ABQAlways Pb-free20.00.61.98E911
          74LVCH245AD74LVCH245AD,11874LVCH245ADweek 30, 200420.00.61.98E911
          74LVCH245APW74LVCH245APW,11874LVCH245APWweek 7, 200520.00.61.98E911

          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RoHS / RHF无铅转换日期EFRIFRMTBF(小时)MSLMSL无铅
          74LVC245AD74LVC245AD,11274LVC245ADweek 30, 200420.00.61.98E911
          74LVC245APW74LVC245APW,11274LVC245APWweek 7, 200520.00.61.98E911
          74LVCH245APW74LVCH245APW,11274LVCH245APWweek 7, 200520.00.61.98E911
          品质及可靠性免责声明

          文档 (8)

          文件名称标题类型日期
          74LVC_LVCH245AOctal bus transceiver; 3-stateData sheet2021-09-16
          AN263Power considerations when using CMOS and BiCMOS logic devicesApplication note2022-11-16
          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
          SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
          WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08

          支持

          在此页面中寻找您的设计问题答案。如有提供,您可以在我们的安世半导体支持社区找到相关信息,或者您可以找到安世半导体模型和设计工具。

          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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