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74HC245; 74HCT245

Octal bus transceiver; 3-state

The 74HC245; 74HCT245 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 include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

特性

  • Wide supply voltage range from 2.0 to 6.0 V
  • CMOS low power dissipation
  • High noise immunity
  • Octal bidirectional bus interface
  • Non-inverting 3-state outputs
  • Input levels:
    • For 74HC245: CMOS level
    • For 74HCT245: TTL level
  • Complies with JEDEC standards
    • JESD8C (2.7 V to 3.6 V)
    • JESD7A (2.0 V to 6.0 V)
  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 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
74HC245BQProductionn.a.n.a.CMOS± 7.87.0836low-40~857647DHVQFN20
74HC245DProductionn.a.n.a.CMOS± 7.87.0836low-40~1258359SO20
74HC245PWProductionn.a.n.a.CMOS± 7.87.0836low-40~1259943.5TSSOP20
74HCT245BQProductionn.a.n.a.TTL± 610836low-40~1257647DHVQFN20
74HCT245DProductionn.a.n.a.TTL± 610836low-40~1258359SO20
74HCT245PWProductionn.a.n.a.TTL± 610836low-40~1259943.5TSSOP20

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))
74HC245BQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveHC24574HC245BQ,115
( 9352 786 45115 )
74HC245D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1 CECCActive74HC245D74HC245D,653
( 9337 135 80653 )
74HC245PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveHC24574HC245PW,118
( 9351 835 70118 )
74HCT245BQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveHCT24574HCT245BQ,115
( 9352 786 46115 )
74HCT245D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1 CECCActive74HCT245D74HCT245D,653
( 9337 135 90653 )
74HCT245PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveHCT24574HCT245PW,118
( 9351 652 30118 )

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))
74HC245D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Bulk Pack, CECCDiscontinued / End-of-life74HC245D74HC245D,652
( 9337 135 80652 )
74HC245PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeHC24574HC245PW,112
( 9351 835 70112 )
74HCT245D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Bulk Pack, CECCDiscontinued / End-of-life74HCT245D74HCT245D,652
( 9337 135 90652 )
74HCT245PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackWithdrawn / End-of-lifeHCT24574HCT245PW,112
( 9351 652 30112 )

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
74HC245D9337135806522021-12-312022-06-3074HC245D
    74HC245PW9351835701122021-12-312022-06-3074HC245PW
      74HCT245D9337135906522021-12-312022-06-3074HCT245D
        74HCT245PW9351652301122021-12-312022-06-3074HCT245PW

          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
          74HC245BQ74HC245BQ,11574HC245BQAlways Pb-free
          74HC245D74HC245D,65374HC245Dweek 13, 2005
          74HC245PW74HC245PW,11874HC245PWweek 7, 2005
          74HCT245BQ74HCT245BQ,11574HCT245BQAlways Pb-free
          74HCT245D74HCT245D,65374HCT245Dweek 30, 2004
          74HCT245PW74HCT245PW,11874HCT245PWweek 17, 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
          74HC245D74HC245D,65274HC245Dweek 13, 2005
          74HC245PW74HC245PW,11274HC245PWweek 7, 2005
          74HCT245D74HCT245D,65274HCT245Dweek 30, 2004
          74HCT245PW74HCT245PW,11274HCT245PWweek 17, 2005
          品质及可靠性免责声明

          文档 (9)

          文件名称标题类型日期
          74HC_HCT245Octal bus transceiver; 3-stateData sheet2021-09-06
          AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
          hcHC/HCT Spice modelSPICE model2022-02-17
          HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
          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
          WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08
          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

          支持

          如果您需要设计/技术支持,请告知我们并填写 应答表, 我们会尽快回复您。

          模型

          文件名称标题类型日期
          hcHC/HCT Spice modelSPICE model2022-02-17

          样品

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