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74HC540; 74HCT540

Octal buffer/line driver; 3-state; inverting

The 74HC540; 74HCT540 is an 8-bit inverting buffer/line driver with 3-state outputs. The device features two output enables (OE1 and OE2). A HIGH on OEn 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 V to 6.0 V

  • CMOS low power dissipation

  • High noise immunity

  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

  • Inverting outputs

  • Input levels:

    • For 74HC540: CMOS level

    • For 74HCT540: TTL level

  • Complies with JEDEC standards

    • JESD8C (2.7 V to 3.6 V)

    • JESD7A (2.0 V to 6.0 V)

  • ESD protection:

    • HBM JESD22-A114F exceeds 2 kV

    • 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 (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
74HC540DProduction2.0 - 6.0CMOS± 7.8368low-40~1257046SO20
74HC540PWProduction2.0 - 6.0CMOS± 7.8368low-40~12511239.4TSSOP20
74HCT540DProduction4.5 - 5.5TTL± 6368low-40~1257046SO20
74HCT540PWProduction4.5 - 5.5TTL± 6368low-40~1257046TSSOP20

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)）
74HC540D
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_653Active74HC540D74HC540D,653
( 9337 154 90653 )
74HC540PW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118Active74HC54074HC540PWJ
( 9356 912 19118 )
74HCT540D
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_653Active74HCT540D74HCT540D,653
( 9337 156 00653 )
74HCT540PW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118Active4HCT54074HCT540PWJ
( 9356 912 11118 )

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)）
74HC540D
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_652Withdrawn / End-of-life74HC540D74HC540D,652
( 9337 154 90652 )
74HCT540D
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_652Withdrawn / End-of-life74HCT540D74HCT540D,652
( 9337 156 00652 )

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
74HC540D9337154906522021-12-312022-06-3074HC540D
    74HCT540D9337156006522021-12-312022-06-3074HCT540D

      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
      74HC540D74HC540D,65374HC540Dweek 30, 2004
      74HC540PW74HC540PWJ74HC540PW
      74HCT540D74HCT540D,65374HCT540Dweek 30, 2004
      74HCT540PW74HCT540PWJ74HCT540PW

      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
      74HC540D74HC540D,65274HC540Dweek 30, 2004
      74HCT540D74HCT540D,65274HCT540Dweek 30, 2004
      品质及可靠性免责声明

      文档 (7)

      文件名称标题类型日期
      74HC_HCT540Octal buffer/line driver; 3-state; invertingData sheet2021-10-19
      AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
      HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
      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

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