74LVCH244APW

Octal buffer/line driver; 3-state

The 74LVC244A; 74LVCH244A is an octal non-inverting buffer/line driver with 3-state outputs. The 3-state outputs are controlled by the output enable inputs 1OE and 2OE. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Schmitt-trigger action at all inputs makes the circuit highly tolerant for slower input rise and fall times.

Inputs can be driven from either 3.3 V or 5.0 V devices. In 3-state operation, outputs can handle 5 V. These features allow the use of these devices as translators in a mixed 3.3 V and 5 V environment.

The 74LVCH244A bus hold on data inputs eliminates the need for external pull-up resistors to hold unused inputs.

特性

  • 5 V tolerant inputs/outputs for interfacing with 5 V logic
  • Wide supply voltage range from 1.2 V to 3.6 V
  • CMOS low-power consumption
  • Direct interface with TTL levels
  • Inputs accept voltages up to 5.5 V
  • High-impedance when VCC = 0 V
  • Bus hold on all data inputs (74LVCH244A only)
  • 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 JESD22-A114F exceeds 2000 V
    • MM JESD22-A115B exceeds 200 V
    • CDM JESD22-C101E exceeds 1000 V
  • Specified from -40 °C to +85 °C and -40 °C to +125 °C

目标应用

参数类型

型号Product statusVCC (V)Logic switching levelsOutput drive capability (mA)fmax (MHz)No of bitsPower dissipation considerationsTamb (Cel)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74LVCH244APWProduction1.2 - 3.6CMOS/LVTTL+/- 241758low-40~1251014.645TSSOP20

Package

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))
74LVCH244APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveVCH244A74LVCH244APW,118
( 9352 103 50118 )
Bulk PackActiveVCH244A74LVCH244APW,112
( 9352 103 50112 )

品质、可靠性及化学成分

型号可订购的器件编号化学成分RoHS / RHF无铅转换日期EFRIFRMTBF(小时)MSLMSL无铅
74LVCH244APW74LVCH244APW,11874LVCH244APWweek 7, 2005123.83.872.58E811
74LVCH244APW74LVCH244APW,11274LVCH244APWweek 7, 2005123.83.872.58E811
品质及可靠性免责声明

文档 (10)

文件名称标题类型日期
74LVC_LVCH244AOctal buffer/line driver; 3-stateData sheet2018-08-13
AN240Interfacing 3 Volt and 5 Volt ApplicationsApplication note1995-09-14
AN263Power considerations when using CMOS and BiCMOS logic devicesApplication note2002-02-04
AN11009Pin FMEA for LVC familyApplication note2011-02-04
AN10156Sorting through the low voltage logic mazeApplication note2013-03-13
lvch244alvch244a IBIS modelIBIS model2013-04-07
lvclvc Spice modelSPICE model2013-05-06
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT360-1_118TSSOP20; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packing2013-04-15
SOT360-1plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm bodyOutline drawing2018-01-12

支持

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模型

文件名称标题类型日期
lvch244alvch244a IBIS modelIBIS model2013-04-07
lvclvc Spice modelSPICE model2013-05-06

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