74HC139; 74HCT139

Dual 2-to-4 line decoder/demultiplexer

The 74HC139; 74HCT139 decodes two binary weighted address inputs (nA0, nA1) to four mutually exclusive outputs (nY0 to nY3). Each decoder features an enable input (nE). When nE is HIGH all outputs are forced HIGH. The enable input can be used as the data input for a 1-to-4 demultiplexer application. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Features and benefits

  • Input levels:
    • For 74HC139: CMOS level
    • For 74HCT139: TTL level
  • Demultiplexing capability
  • 2 independent 2-to-4 decoders
  • Multifunction capability
  • Suitable for memory decoding, data routing or code conversion
  • Complies with JEDEC standard no. 7A
  • Active LOW mutually exclusive outputs
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C


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
74HC139DProduction2.0 - 6.0CMOS± 5.214low-40~125929.351SO16
74HC139PWProduction2.0 - 6.0CMOS± 5.214low-40~1251244.453.8TSSOP16
74HCT139DProduction4.5 - 5.5TTL± 416low-40~125929.351SO16
74HCT139PWProduction4.5 - 5.5TTL± 416low-40~1251244.453.8TSSOP16


Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
Bulk Pack, CECCActive74HC139D74HC139D,652
( 9337 135 00652 )
Reel 13" Q1/T1 CECCActive74HC139D74HC139D,653
( 9337 135 00653 )
Reel 13" Q1/T1ActiveHC13974HC139PW,118
( 9351 744 30118 )
Bulk PackActiveHC13974HC139PW,112
( 9351 744 30112 )
Reel 13" Q1/T1 CECCActive74HCT139D74HCT139D,653
( 9337 135 10653 )
Bulk Pack, CECCActive74HCT139D74HCT139D,652
( 9337 135 10652 )
Reel 13" Q1/T1ActiveHCT13974HCT139PW,118
( 9351 883 00118 )
Bulk PackActiveHCT13974HCT139PW,112
( 9351 883 00112 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74HC139D74HC139D,65274HC139Dweek 35, 200484.96.621.51E811
74HC139D74HC139D,65374HC139Dweek 35, 200484.96.621.51E811
74HC139PW74HC139PW,11874HC139PWweek 10, 200584.96.621.51E811
74HC139PW74HC139PW,11274HC139PWweek 10, 200584.96.621.51E811
74HCT139D74HCT139D,65374HCT139Dweek 35, 200484.96.621.51E811
74HCT139D74HCT139D,65274HCT139Dweek 35, 200484.96.621.51E811
74HCT139PW74HCT139PW,11874HCT139PWweek 10, 200584.96.621.51E811
74HCT139PW74HCT139PW,11274HCT139PWweek 10, 200584.96.621.51E811
Quality and reliability disclaimer

Documentation (9)

File nameTitleTypeDate
74HC_HCT139Dual 2-to-4 line decoder/demultiplexerData sheet2021-01-14
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
hc13974HC139 IBIS modelIBIS model2020-08-14
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm bodyPackage information2021-01-06
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT403-1plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.1 mm bodyPackage information2020-04-21


If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.


File nameTitleTypeDate
hc13974HC139 IBIS modelIBIS model2020-08-14

Ordering, pricing & availability


As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.