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74LVT244A; 74LVTH244A

3.3 V octal buffer/line driver; 3-state

The 74LVT244A; 74LVTH244A is an 8-bit buffer/line driver with 3-state outputs. The device can be used as two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Bus hold data inputs eliminate the need for external pull-up resistors to define unused inputs

特性

  • Octal bus interface

  • 3-state buffers

  • Output capability: +64 mA and -32 mA

  • Wide supply voltage range from 2.7 to 3.6 V

  • Overvoltage tolerant inputs to 5.5 V

  • Direct interface with TTL levels

  • BiCMOS high speed and output drive

  • IOFF circuitry provides partial Power-down mode operation

  • Bus hold data inputs eliminate need for external pull-up resistors to hold unused inputs

  • Live insertion and extraction permitted

  • Power-up 3-state

  • No bus current loading when output is tied to 5 V bus

  • Latch-up performance exceeds 500 mA per JESD 78 Class II Level B

  • Complies with JEDEC standard JESD8C (2.7 V to 3.6 V)

  • ESD protection:

    • HBM JESD22-A114E exceeds 2000 V

    • MM JESD22-A115-A exceeds 200 V

  • Specified from -40 °C to 85 °C

参数类型

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)fmax (MHz)Nr of bitsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Rth(j-c) (K/W)Package name
74LVT244ABQProduction2.7 - 3.6TTL-32 / +641508medium-40~857748DHVQFN20
74LVT244ADProduction2.7 - 3.6TTL-32 / +641508medium-40~858460SO20
74LVT244APWProduction2.7 - 3.6TTL-32 / +641508medium-40~8510044TSSOP20
74LVTH244ABQProduction2.7 - 3.6TTL-32 / +641508medium-40~857748DHVQFN20
74LVTH244ADProduction2.7 - 3.6TTL-32 / +641508medium-40~858460SO20
74LVTH244APWProduction2.7 - 3.6TTL-32 / +641508medium-40~8510044TSSOP20

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)）
74LVT244ABQ
DHVQFN20
(SOT764-1) 		SOT764-1SOT764-1_115ActiveLVT244A74LVT244ABQ,115
( 9352 856 02115 )
74LVT244AD
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_118Active74LVT244AD74LVT244AD,118
( 9351 671 30118 )
74LVT244APW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveLVT244A74LVT244APW,118
( 9351 763 80118 )
74LVTH244ABQ
DHVQFN20
(SOT764-1) 		SOT764-1SOT764-1_115ActiveLVTH244A74LVTH244ABQ,115
( 9352 856 03115 )
74LVTH244AD
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_118Active74LVTH244AD74LVTH244AD,118
( 9352 620 69118 )
74LVTH244APW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveVTH244A74LVTH244APW,118
( 9352 620 71118 )

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)）
74LVT244AD
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_112Withdrawn / End-of-life74LVT244AD74LVT244AD,112
( 9351 671 30112 )
74LVT244APW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_112Withdrawn / End-of-lifeLVT244A74LVT244APW,112
( 9351 763 80112 )

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
74LVT244AD9351671301122021-12-312022-06-3074LVT244AD
    74LVT244APW9351763801122021-12-312022-06-3074LVT244APW
      74LVTH244AD9352620691122021-12-312022-06-3074LVTH244AD
        74LVTH244APW9352620711122021-12-312022-06-3074LVTH244APW

          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
          74LVT244ABQ74LVT244ABQ,11574LVT244ABQAlways Pb-free
          74LVT244AD74LVT244AD,11874LVT244ADweek 4, 2004
          74LVT244APW74LVT244APW,11874LVT244APWweek 7, 2005
          74LVTH244ABQ74LVTH244ABQ,11574LVTH244ABQAlways Pb-free
          74LVTH244AD74LVTH244AD,11874LVTH244ADAlways Pb-free
          74LVTH244APW74LVTH244APW,11874LVTH244APWAlways Pb-free

          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
          74LVT244AD74LVT244AD,11274LVT244ADweek 4, 2004
          74LVT244APW74LVT244APW,11274LVT244APWweek 7, 2005
          品质及可靠性免责声明

          文档 (8)

          文件名称标题类型日期
          74LVT_LVTH244A3.3 V octal buffer/line driver; 3-stateData sheet2021-08-17
          AN263Power considerations when using CMOS and BiCMOS logic devicesApplication note2023-02-07
          lvt244alvt244a 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

          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
          lvt244alvt244a IBIS modelIBIS model2013-04-07

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