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74HC174; 74HCT174

Hex D-type flip-flop with reset; positive-edge trigger

The 74HC174; 74HCT174 are hex positive edge-triggered D-type flip-flops with individual data inputs (Dn) and outputs (Qn). The common clock (CP) and master reset (MR) inputs load and reset all flip-flops simultaneously. The D-input that meets the set-up and hold time requirements on the LOW-to-HIGH clock transition is stored in the flip-flop and appears at the Q output. A LOW on MR causes the flip-flops and outputs to be reset LOW. 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 to 6.0 V

  • CMOS low power dissipation

  • High noise immunity

  • Input levels:

    • For 74HC174: CMOS level

    • For 74HCT174: TTL level

  • Six edge-triggered D-type flip-flops

  • Asynchronous master reset

  • Complies with JEDEC standards

    • JESD8C (2.7 V to 3.6 V)

    • JESD7A (2.0 V to 6.0 V)

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

  • 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)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
74HC174DProduction2.0 - 6.0CMOS± 5.21799low-40~125804.239SO16
74HC174PWProduction2.0 - 6.0CMOS± 5.21799low-40~1251142.142.4TSSOP16
74HCT174DProduction4.5 - 5.5TTL± 41869low-40~125804.239SO16
74HCT174PWProduction4.5 - 5.5TTL± 41869low-40~1251142.142.4TSSOP16

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)）
74HC174D
SO16
(SOT109-1) 		SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_653Active74HC174D74HC174D,653
( 9337 145 70653 )
74HC174PW
TSSOP16
(SOT403-1) 		SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118ActiveHC17474HC174PW,118
( 9351 883 60118 )
74HCT174D
SO16
(SOT109-1) 		SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_653Active74HCT174D74HCT174D,653
( 9337 150 50653 )
74HCT174PW
TSSOP16
(SOT403-1) 		SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118ActiveHCT17474HCT174PW,118
( 9351 873 80118 )

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)）
74HC174D
SO16
(SOT109-1) 		SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_652Withdrawn / End-of-life74HC174D74HC174D,652
( 9337 145 70652 )
74HC174PW
TSSOP16
(SOT403-1) 		SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_112Withdrawn / End-of-lifeHC17474HC174PW,112
( 9351 883 60112 )
74HCT174D
SO16
(SOT109-1) 		SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_652Withdrawn / End-of-life74HCT174D74HCT174D,652
( 9337 150 50652 )

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
74HC174D9337145706522021-12-312022-06-3074HC174D
    74HC174PW9351883601122021-12-312022-06-3074HC174PW
      74HCT174D9337150506522021-12-312022-06-3074HCT174D
        74HCT174PW9351873801122018-12-312019-06-3074HCT174PW

          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
          74HC174D74HC174D,65374HC174Dweek 30, 2004
          74HC174PW74HC174PW,11874HC174PWweek 10, 2005
          74HCT174D74HCT174D,65374HCT174Dweek 6, 2004
          74HCT174PW74HCT174PW,11874HCT174PWweek 10, 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
          74HC174D74HC174D,65274HC174Dweek 30, 2004
          74HC174PW74HC174PW,11274HC174PWweek 10, 2005
          74HCT174D74HCT174D,65274HCT174Dweek 6, 2004
          品质及可靠性免责声明

          文档 (9)

          文件名称标题类型日期
          74HC_HCT174Hex D-type flip-flop with reset; positive-edge triggerData sheet2024-03-14
          AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
          HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
          SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
          SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
          WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08
          SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm bodyPackage information2023-11-07
          SOT403-1plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm bodyPackage information2023-11-08
          SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08

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