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74HC21

Dual 4-input AND gate

The 74HC21 is a dual 4-input AND gate. 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

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

  • CMOS input levels

  • Complies with JEDEC standards:

    • JESD8C (2.7 V to 3.6 V)

    • JESD7A (2.0 V to 6.0 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 from -40 °C to +125 °C.

参数类型

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)fmax (MHz)Nr of bitsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC21DProduction2.0 - 6.0CMOS± 5.210362low-40~125833.440SO14
74HC21PWProduction2.0 - 6.0CMOS± 5.210362low-40~1251242.148.3TSSOP14

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)）
74HC21D
SO14
(SOT108-1) 		SOT108-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT108-1_653Active74HC21D74HC21D,653
( 9337 568 70653 )
74HC21PW
TSSOP14
(SOT402-1) 		SOT402-1SSOP-TSSOP-VSO-WAVE
SOT402-1_118ActiveHC2174HC21PW,118
( 9352 903 99118 )

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)）
74HC21D
SO14
(SOT108-1) 		SOT108-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT108-1_652Withdrawn / End-of-life74HC21D74HC21D,652
( 9337 568 70652 )
74HC21PW
TSSOP14
(SOT402-1) 		SOT402-1SSOP-TSSOP-VSO-WAVE
SOT402-1_112Withdrawn / End-of-lifeHC2174HC21PW,112
( 9352 903 99112 )

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
74HC21D9337568706522021-12-312022-06-3074HC21D
    74HC21PW9352903991122021-12-312022-06-3074HC21PW

      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
      74HC21D74HC21D,65374HC21Dweek 5, 2004
      74HC21PW74HC21PW,11874HC21PWAlways Pb-free

      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
      74HC21D74HC21D,65274HC21Dweek 5, 2004
      74HC21PW74HC21PW,11274HC21PWAlways Pb-free
      品质及可靠性免责声明

      文档 (10)

      文件名称标题类型日期
      74HC21Dual 4-input AND gateData sheet2024-01-17
      AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
      Nexperia_Selection_guide_2023Nexperia Selection Guide 2023Selection guide2023-05-10
      HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
      SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
      SOT402-1plastic, thin shrink small outline package; 14 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.2 mm bodyPackage information2023-11-07
      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
      SOT108-1plastic, small outline package; 14 leads; 1.27 mm pitch; 8.65 mm x 3.9 mm x 1.75 mm bodyPackage information2023-11-07

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