74HC139DB NRND

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 that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Not recommended for new designs (NRND), click here for the alternative product.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HC139DB 74HC139DB,118 935174450118 SOT338-1 Order product
74HC139DB 74HC139DB,112 935174450112 SOT338-1 Order product

Features

  • 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
  • Multiple package options
  • Specified from ‑40 °C to +85 °C and from ‑40 °C to +125 °C

Target applications

Parametrics

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)Package name
74HC139DB
NRND
Not for design in2.0 - 6.0CMOS+/- 5.214low-40~12514842.0SSOP16

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74HC139DB
NRND
74HC139DB,118
( 9351 744 50118 )
ActiveHC139
SSOP16
(SOT338-1)
SOT338-1SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1
74HC139DB,112
( 9351 744 50112 )
ActiveHC139Bulk Pack

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFMSLMSL leadfree
74HC139DB
NRND
74HC139DB,11874HC139DB11
74HC139DB
NRND
74HC139DB,11274HC139DB11
Quality and reliability disclaimer

Documentation (6)

File nameTitleTypeDate
74HC_HCT139Dual 2-to-4 line decoder/demultiplexerData sheet2017-03-30
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
SSOP-TSSOP-VSO-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SOT338-1plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm bodyOutline drawing2018-10-18

Support

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Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74HC139DB74HC139DB,118935174450118Reel 13" Q1/T1Order product
74HC139DB74HC139DB,112935174450112Bulk PackOrder product

Sample

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