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74LVT244B; 74LVTH244B

3.3 V octal buffer/line driver; 3-state

The 74LVT244B; 74LVTH244B 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

  • Speed upgrade of 74LVT244A

  • Wide supply voltage range from 2.7 to 3.6 V

  • BiCMOS high speed and output drive

  • Output capability: +64 mA and -32 mA

  • Direct interface with TTL levels

  • Overvoltage tolerant inputs to 5.5 V

  • Input and output interface capability to systems at 5 V supply

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

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

  • Power-up 3-state

  • Live insertion and extraction permitted

  • IOFF circuitry provides partial Power-down mode operation

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

  • Complies with JEDEC standards

    • JESD8C (2.7 V to 3.6 V)

  • ESD protection:

    • HBM EIA/JESD22-A114-C exceeds 2000 V

    • MM EIA/JESD22-A115-A 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
74LVT244BDProduction2.7 - 3.6TTL-32 / +641508medium-40~858460SO20
74LVT244BPWProduction2.7 - 3.6TTL-32 / +641508medium-40~8510044TSSOP20
74LVTH244BDProduction2.7 - 3.6TTL-32 / +641508medium-40~858460SO20
74LVTH244BPWProduction2.7 - 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)）
74LVT244BD
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_118Active74LVT244BD74LVT244BD,118
( 9352 627 91118 )
74LVT244BPW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveLVT244B74LVT244BPW,118
( 9352 627 93118 )
74LVTH244BD
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_118Active74LVTH244BD74LVTH244BD,118
( 9352 817 41118 )
74LVTH244BPW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveVTH244B74LVTH244BPW,118
( 9352 817 43118 )

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
74LVT244BD9352627911122021-12-312022-06-3074LVT244BD
    74LVT244BPW9352627931122021-12-312022-06-3074LVT244BPW
      74LVTH244BD9352817411122018-12-312019-06-3074LVTH244BD
        74LVTH244BPW9352817431122018-12-312019-06-3074LVTH244BPW

          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
          74LVT244BD74LVT244BD,11874LVT244BDweek 4, 2004
          74LVT244BPW74LVT244BPW,11874LVT244BPWweek 7, 2005
          74LVTH244BD74LVTH244BD,11874LVTH244BDAlways Pb-free
          74LVTH244BPW74LVTH244BPW,11874LVTH244BPWAlways Pb-free
          品质及可靠性免责声明

          文档 (6)

          文件名称标题类型日期
          74LVT_LVTH244B3.3 V octal buffer/line driver; 3-stateData sheet2021-08-12
          lvt244blvt244b IBIS modelIBIS model2013-04-07
          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
          lvt244blvt244b IBIS modelIBIS model2013-04-07

          订购、定价与供货

          样品

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