74HCT280D

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

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HCT280D 74HCT280D,653 933713890653 SOT108-1 Order product
74HCT280D 74HCT280D,652 933713890652 SOT108-1 Order product

Features

  • Complies with JEDEC standard no. 7A
  • Input levels:
    • For 74HC280: CMOS level
    • For 74HCT280: TTL level
  • Word-length easily expanded by cascading
  • Generates either odd or even parity for nine data bits
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
  • Specified from -40 °C to +85 °C and -40 °C to +125 °C

Target applications

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Power dissipation considerationsTamb (Cel)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HCT280DProduction4.5 - 5.5TTL+/- 418low-40~125761.034SO14

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74HCT280D74HCT280D,653
( 9337 138 90653 )
Active74HCT280D
SO14
(SOT108-1)
SOT108-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1 CECC
74HCT280D,652
( 9337 138 90652 )
Active74HCT280DBulk Pack, CECC

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74HCT280D74HCT280D,65374HCT280Dweek 5, 200484.96.621.51E811
74HCT280D74HCT280D,65274HCT280Dweek 5, 200484.96.621.51E811
Quality and reliability disclaimer

Documentation (6)

File nameTitleTypeDate
74HC_HCT2809-bit odd, even parity generator, checkerData sheet2017-03-16
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT108-1plastic, small outline package; 14 leads; 1.27 mm pitch; 8.65 mm x 3.9 mm x 1.75 mm bodyOutline drawing2018-10-18

Support

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Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74HCT280D74HCT280D,653933713890653Reel 13" Q1/T1 CECCOrder product
74HCT280D74HCT280D,652933713890652Bulk Pack, CECCOrder product

Sample

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Sample orders normally take 2-4 days for delivery.

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