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74AHC245; 74AHCT245

Octal bus transceiver; 3-state

The 74AHC245; 74AHCT245 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 are overvoltage tolerant. This feature allows the use of these devices as translators in mixed voltage environments.

特性

  • Wide supply voltage range from 2.0 V to 5.5 V

  • Balanced propagation delays

  • All inputs have Schmitt-trigger action

  • Overvoltage tolerant inputs to 5.5 V

  • High noise immunity

  • CMOS low power dissipation

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

  • Input levels:

    • For 74AHC245: CMOS level

    • For 74AHCT245: TTL level

  • ESD protection:

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

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

  • Multiple package options

  • Specified from -40 °C to +85 °C and from -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
74AHC245BQProductionn.a.n.a.CMOS± 83.5860low-40~1257547DHVQFN20
74AHC245DProductionn.a.n.a.CMOS± 83.5860low-40~1258359SO20
74AHC245PWProductionn.a.n.a.CMOS± 83.5860low-40~1259943.3TSSOP20
74AHCT245APWProductionn.a.n.a.TTL± 83.0860low-40~12510145TSSOP20
74AHCT245BQProductionn.a.n.a.TTL± 85.0860low-40~1257547DHVQFN20
74AHCT245DProductionn.a.n.a.TTL± 85.0860low-40~1258359SO20
74AHCT245PWProductionn.a.n.a.TTL± 85.0860low-40~1259943.3TSSOP20

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)）
74AHC245BQ
DHVQFN20
(SOT764-1) 		SOT764-1SOT764-1_115ActiveAHC24574AHC245BQ,115
( 9352 891 07115 )
74AHC245D
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_118Active74AHC245D74AHC245D,118
( 9352 620 03118 )
74AHC245PW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveAHC24574AHC245PW,118
( 9352 620 05118 )
74AHCT245APW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveAHT245A74AHCT245APWJ
( 9353 078 76118 )
74AHCT245BQ
DHVQFN20
(SOT764-1) 		SOT764-1SOT764-1_115ActiveAHCT24574AHCT245BQ,115
( 9352 891 08115 )
74AHCT245D
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_118Active74AHCT245D74AHCT245D,118
( 9352 619 60118 )
74AHCT245PW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveAHCT24574AHCT245PW,118
( 9352 619 62118 )

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)）
74AHC245D
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_112Withdrawn / End-of-life74AHC245D74AHC245D,112
( 9352 620 03112 )
74AHCT245D
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_112Withdrawn / End-of-life74AHCT245D74AHCT245D,112
( 9352 619 60112 )

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
74AHC245D9352620031122021-12-312022-06-3074AHC245D
    74AHC245PW9352620051122021-12-312022-06-3074AHC245PW
      74AHCT245D9352619601122021-12-312022-06-3074AHCT245D
        74AHCT245PW9352619621122021-12-312022-06-3074AHCT245PW

          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
          74AHC245BQ74AHC245BQ,11574AHC245BQAlways Pb-free
          74AHC245D74AHC245D,11874AHC245Dweek 30, 2004
          74AHC245PW74AHC245PW,11874AHC245PWweek 7, 2005
          74AHCT245APW74AHCT245APWJ74AHCT245APWAlways Pb-free
          74AHCT245BQ74AHCT245BQ,11574AHCT245BQAlways Pb-free
          74AHCT245D74AHCT245D,11874AHCT245Dweek 30, 2004
          74AHCT245PW74AHCT245PW,11874AHCT245PWweek 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
          74AHC245D74AHC245D,11274AHC245Dweek 30, 2004
          74AHCT245D74AHCT245D,11274AHCT245Dweek 30, 2004
          品质及可靠性免责声明

          文档 (8)

          文件名称标题类型日期
          74AHC_AHCT245Octal bus transceiver; 3-stateData sheet2023-09-21
          ahct245ahct245 IBIS modelIBIS model2013-04-07
          ahc245ahc245 IBIS modelIBIS model2013-04-07
          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
          ahct245ahct245 IBIS modelIBIS model2013-04-07
          ahc245ahc245 IBIS modelIBIS model2013-04-07

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