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74LVC2244A

Octal buffer/line driver; 30 Ohm series termination; 5 V tolerant input/output; 3-state

The 74LVC2244A 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. 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

  • Overvoltage tolerant inputs to 5.5 V

  • Wide supply voltage range from 1.2 V to 3.6 V

  • CMOS low-power consumption

  • Direct interface with TTL levels

  • Integrated 30 Ω termination resistors

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

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

  • Specified from -40 °C to +85 °C and -40 °C to +125 °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
74LVC2244ABQProduction1.2 - 3.6CMOS/LVTTL± 121758low-40~1257950DHVQFN20
74LVC2244ADProduction1.2 - 3.6CMOS/LVTTL± 121758low-40~1258561SO20
74LVC2244APWProduction1.2 - 3.6CMOS/LVTTL± 121758low-40~12510045TSSOP20

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)）
74LVC2244ABQ
DHVQFN20
(SOT764-1) 		SOT764-1SOT764-1_115ActiveLVC2244A74LVC2244ABQ,115
( 9352 730 00115 )
74LVC2244AD
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_118Active74LVC2244AD74LVC2244AD,118
( 9352 135 50118 )
74LVC2244APW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveVC2244A74LVC2244APW,118
( 9352 135 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)）
74LVC2244APW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_112Withdrawn / End-of-lifeVC2244A74LVC2244APW,112
( 9352 135 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状态备注
74LVC2244AD9352135501122018-12-312019-06-3074LVC2244AD
    74LVC2244APW9352135701122021-12-312022-06-3074LVC2244APW

      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
      74LVC2244ABQ74LVC2244ABQ,11574LVC2244ABQAlways Pb-free
      74LVC2244AD74LVC2244AD,11874LVC2244ADweek 30, 2004
      74LVC2244APW74LVC2244APW,11874LVC2244APWweek 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
      74LVC2244APW74LVC2244APW,11274LVC2244APWweek 7, 2005
      品质及可靠性免责声明

      文档 (11)

      文件名称标题类型日期
      74LVC2244AOctal buffer/line driver; 30 Ohm series termination; 5 V tolerant input/output; 3-stateData sheet2023-08-25
      AN263Power considerations when using CMOS and BiCMOS logic devicesApplication note2023-02-07
      AN11009Pin FMEA for LVC familyApplication note2019-01-09
      lvc2244alvc2244a IBIS modelIBIS model2013-04-07
      Nexperia_Selection_guide_2023Nexperia Selection Guide 2023Selection guide2023-05-10
      lvclvc Spice modelSPICE model2013-05-06
      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
      lvc2244alvc2244a IBIS modelIBIS model2013-04-07
      lvclvc Spice modelSPICE model2013-05-06

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