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74HC280; 74HCT280

9-bit odd/even parity generator/checker

The 74HC280; 74HCT280 is a 9-bit parity generator or checker. Both even and odd parity outputs are available. The even parity output (PE) is HIGH when an even number of data inputs (I0 to I8) is HIGH. The odd parity output (PO) is HIGH when an odd number of data inputs are HIGH. Expansion to larger word sizes is accomplished by tying the even outputs (PE) of up to nine parallel devices to the final stage data inputs. Inputs include clamp diodes. It enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

特性

  • Word-length easily expanded by cascading

  • Generates either odd or even parity for nine data bits

  • Wide supply voltage range from 2.0 to 6.0 V

  • Input levels:

    • For 74HC280: CMOS level

    • For 74HCT280: TTL level

  • 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)

  • 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)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC280DProduction2.0 - 6.0CMOS± 5.217low-40~125731.030SO14
74HCT280DProduction4.5 - 5.5TTL± 418low-40~125761.034SO14
74HCT280PWProduction4.5 - 5.5TTL± 418low-40~125---TSSOP14

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)）
74HC280D
SO14
(SOT108-1) 		SOT108-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT108-1_653Active74HC280D74HC280D,653
( 9337 138 80653 )
74HCT280D
SO14
(SOT108-1) 		SOT108-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT108-1_653Active74HCT280D74HCT280D,653
( 9337 138 90653 )
74HCT280PW
TSSOP14
(SOT402-1) 		SOT402-1SSOP-TSSOP-VSO-WAVE
SOT402-1_118Active4HCT28074HCT280PWJ
( 9356 911 88118 )

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
74HC280D9337138806522021-12-312022-06-3074HC280D
    74HCT280D9337138906522021-12-312022-06-3074HCT280D

      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
      74HC280D74HC280D,65374HC280Dweek 5, 2004
      74HCT280D74HCT280D,65374HCT280Dweek 5, 2004
      74HCT280PW74HCT280PWJ74HCT280PW
      品质及可靠性免责声明

      文档 (9)

      文件名称标题类型日期
      74HC_HCT2809-bit odd/even parity generator/checkerData sheet2024-01-15
      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
      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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