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74HC574; 74HCT574

Octal D-type flip-flop; positive edge-trigger; 3-state

The 74HC574; 74HCT574 is an 8-bit positive-edge triggered D-type flip-flop with 3-state outputs. The device features a clock (CP) and output enable (OE) inputs. The flip-flops will store the state of their individual D-inputs that meet the set-up and hold time requirements on the LOW-to-HIGH clock (CP) transition. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Operation of the OE input does not affect the state of the flip-flops. 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

  • Complies with JEDEC standards:

    • JESD8C (2.7 V to 3.6 V)

    • JESD7A (2.0 V to 6.0 V)

  • Input levels:

    • For 74HC574: CMOS level

    • For 74HCT574: TTL level

  • 3-state non-inverting outputs for bus oriented applications

  • 8-bit positive, edge-triggered register

  • Common 3-state output enable input

  • ESD protection:

    • HBM JESD22-A114F exceeds 2 kV

    • MM JESD22-A115-A exceeds 200 V

  • 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)tpd (ns)fmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC574BQProduction2.0 - 6.0CMOS± 7.814133low-40~125789.450DHVQFN20
74HC574DProduction2.0 - 6.0CMOS± 7.814133low-40~1258527.561SO20
74HC574PWProduction2.0 - 6.0CMOS± 7.814133low-40~1251004.644.9TSSOP20
74HCT574DProduction4.5 - 5.5TTL± 61576low-40~1258527.561SO20
74HCT574PWProduction4.5 - 5.5TTL± 61576low-40~1251004.644.9TSSOP20

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)）
74HC574BQ
DHVQFN20
(SOT764-1) 		SOT764-1SOT764-1_115Active74HC574B74HC574BQX
( 9356 912 75115 )
74HC574D
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_653Active74HC574D74HC574D,653
( 9337 155 20653 )
74HC574PW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveHC57474HC574PW,118
( 9351 870 20118 )
74HCT574D
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_653Active74HCT574D74HCT574D,653
( 9337 156 30653 )
74HCT574PW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveHCT57474HCT574PW,118
( 9351 885 10118 )

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)）
74HC574D
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_652Withdrawn / End-of-life74HC574D74HC574D,652
( 9337 155 20652 )
74HC574PW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_112Withdrawn / End-of-lifeHC57474HC574PW,112
( 9351 870 20112 )
74HCT574D
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_652Withdrawn / End-of-life74HCT574D74HCT574D,652
( 9337 156 30652 )

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
74HC574D9337155206522021-12-312022-06-3074HC574D
    74HC574PW9351870201122021-12-312022-06-3074HC574PW
      74HCT574D9337156306522021-12-312022-06-3074HCT574D
        74HCT574PW9351885101122021-12-312022-06-3074HCT574PW

          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
          74HC574BQ74HC574BQX74HC574BQ
          74HC574D74HC574D,65374HC574Dweek 30, 2004
          74HC574PW74HC574PW,11874HC574PWweek 7, 2005
          74HCT574D74HCT574D,65374HCT574Dweek 30, 2004
          74HCT574PW74HCT574PW,11874HCT574PWweek 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
          74HC574D74HC574D,65274HC574Dweek 30, 2004
          74HC574PW74HC574PW,11274HC574PWweek 7, 2005
          74HCT574D74HCT574D,65274HCT574Dweek 30, 2004
          品质及可靠性免责声明

          文档 (8)

          文件名称标题类型日期
          74HC_HCT574Octal D-type flip-flop; positive edge-trigger; 3-stateData sheet2022-10-20
          AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
          HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
          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

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