74HC(T)280

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

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

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
74HC280DProduction2.0 - 6.0CMOS+/- 5.217low-40~125731.030SO14
74HCT280DProduction4.5 - 5.5TTL+/- 418low-40~125761.034SO14
74HCT280DB
NRND
Not for design in4.5 - 5.5TTL+/- 418low-40~12515640.0SSOP14

Package

Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74HC280D
SO14
(SOT108-1)
SOT108-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1 CECCActive74HC280D74HC280D,653
( 9337 138 80653 )
Bulk Pack, CECCActive74HC280D74HC280D,652
( 9337 138 80652 )
74HCT280D
SO14
(SOT108-1)
SOT108-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1 CECCActive74HCT280D74HCT280D,653
( 9337 138 90653 )
Bulk Pack, CECCActive74HCT280D74HCT280D,652
( 9337 138 90652 )
74HCT280DB
NRND

SSOP14
(SOT337-1)
SOT337-1SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveHCT28074HCT280DB,118
( 9351 898 70118 )
Bulk PackActiveHCT28074HCT280DB,112
( 9351 898 70112 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74HC280D74HC280D,65374HC280Dweek 5, 200484.96.621.51E811
74HC280D74HC280D,65274HC280Dweek 5, 200484.96.621.51E811
74HCT280D74HCT280D,65374HCT280Dweek 5, 200484.96.621.51E811
74HCT280D74HCT280D,65274HCT280Dweek 5, 200484.96.621.51E811
74HCT280DB
NRND
74HCT280DB,11874HCT280DBweek 13, 200511
74HCT280DB
NRND
74HCT280DB,11274HCT280DBweek 13, 200511
Quality and reliability disclaimer

Documentation (13)

File nameTitleTypeDate
74HC_HCT2809-bit odd, even parity generator, checkerData sheet2017-03-16
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
nexperia_selection_guide_2019_201901Selection guide 2019. Discretes, Logic and MOSFETsSelection guide2018-12-12
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT337-1_118Standard product orientation 12NC ending 118Packing2013-04-04
SSOP-TSSOP-VSO-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SOT337-1plastic, shrink small outline package; 14 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm bodyOutline drawing2018-10-18
SOT108-1_431SO14; Reel sulfur barrier pack, SMD, 13" Q1/T1 standard product orientation Orderable part number ending ,431 or Z Ordering code (12NC) ending 431Packing2016-11-24
SOT108-1_118SO14; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packing2013-04-08
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
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08

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