74LVC138A

3-to-8 line decoder/demultiplexer; inverting

The 74LVC138A is a 3-to-8 line decoder/demultiplexer. It accepts three binary weighted address inputs (A0, A1 and A2) and, when enabled, provides eight mutually exclusive outputs (Y0 to Y7) that are LOW when selected.

There are three enable inputs: two active LOW (E1 and E2) and one active HIGH (E3). Every output will be HIGH unless E1 and E2 are LOW and E3 is HIGH.

This multiple enable function allows easy parallel expansion of the device to a 1-of-32 (5 lines to 32 lines) decoder with just four 74LVC138A devices and one inverter. The 74LVC138A can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Unused enable inputs must be permanently tied to their appropriate active HIGH or LOW state

Features

  • 5 V tolerant inputs for interfacing with 5 V logic
  • Wide supply voltage range from 1.2 to 3.6 V
  • CMOS low power consumption
  • Direct interface with TTL levels
  • Demultiplexing capability
  • Multiple input enable for easy expansion
  • Ideal for memory chip select decoding
  • Mutually exclusive outputs
  • Output drive capability 50 Ω transmission lines at 125 °C
  • Complies with JEDEC standard:
    • JESD8-7A (1.65 V to 1.95 V)
    • JESD8-5A (2.3 V to 2.7 V)
    • JESD8-C/JESD36 (2.7 V to 3.6 V)
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-B exceeds 200 V
    • CDM JESD22-C101E exceeds 1000 V
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

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)Rth(j-c) (K/W)Package name
74LVC138ABQProduction1.2 - 3.6CMOS/LVTTL± 242.7low-40~1259414.563DHVQFN16
74LVC138ADProduction1.2 - 3.6CMOS/LVTTL± 242.7low-40~1259310.152.8SO16
74LVC138ADB
NRND
Not for design in1.2 - 3.6CMOS/LVTTL+/- 242.7low-40~12514842.0SSOP16
74LVC138APWProduction1.2 - 3.6CMOS/LVTTL± 242.7low-40~1251264.855.9TSSOP16

Package

Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74LVC138ABQ
DHVQFN16
(SOT763-1)
SOT763-1Reel 7" Q1/T1ActiveVC138A74LVC138ABQ,115
( 9352 733 34115 )
74LVC138AD
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1Active74LVC138AD74LVC138AD,118
( 9352 607 45118 )
Bulk PackActive74LVC138AD74LVC138AD,112
( 9352 607 45112 )
74LVC138ADB
NRND

SSOP16
(SOT338-1)
SOT338-1SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveVC138A74LVC138ADB,118
( 9352 607 46118 )
Bulk PackActiveVC138A74LVC138ADB,112
( 9352 607 46112 )
74LVC138APW
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveLVC138A74LVC138APW,118
( 9352 607 47118 )
Bulk PackActiveLVC138A74LVC138APW,112
( 9352 607 47112 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74LVC138ABQ74LVC138ABQ,11574LVC138ABQAlways Pb-free123.83.872.58E811
74LVC138AD74LVC138AD,11874LVC138ADweek 12, 2005123.83.872.58E811
74LVC138AD74LVC138AD,11274LVC138ADweek 12, 2005123.83.872.58E811
74LVC138ADB
NRND
74LVC138ADB,11874LVC138ADBweek 13, 200511
74LVC138ADB
NRND
74LVC138ADB,11274LVC138ADBweek 13, 200511
74LVC138APW74LVC138APW,11874LVC138APWweek 10, 2005123.83.872.58E811
74LVC138APW74LVC138APW,11274LVC138APWweek 10, 2005123.83.872.58E811
Quality and reliability disclaimer

Documentation (22)

File nameTitleTypeDate
74LVC138A3-to-8 line decoder/demultiplexer; invertingData sheet2019-01-23
AN11009Pin FMEA for LVC familyApplication note2019-01-09
lvc138alvc138a IBIS modelIBIS model2013-04-07
nexperia_selection_guide_2019_201901Selection guide 2019. Discretes, Logic and MOSFETsSelection guide2018-12-12
lvclvc Spice modelSPICE model2013-05-06
SOT763-1_115DHVQFN16; Reel pack, SMD, 7" Q1/T1 standard product orientation Orderable part number ending ,115 or X Ordering code (12NC) ending 115Packing2016-07-05
SOT763-1plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm bodyOutline drawing2018-11-14
SOT109-1_431SO16; Reel sulfur barrier pack, SMD, 13" Q1/T1 standard product orientation Orderable part number ending ,431 or Z Ordering code (12NC) ending 431Packing2016-08-25
SOT109-1_118SO16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packing2013-04-24
SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm bodyOutline drawing2018-10-18
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT403-1_623TSSOP16; Reel pack; SMD, 13"; Q1 Standard product orientation; Orderable part number ending, 623 or HL; Ordering code (12NC) ending 623Packing2013-05-15
SOT403-1_118TSSOP16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packing2013-04-08
SOT403-1_128TSSOP16; Reel pack; SMD, 13", Turned Q4/T2 180 deg product orientation Orderable part number ending ,128 or HP Ordering code (12NC) ending 128Packing2014-10-14
SOT403-1_653TSSOP16; Reel pack; SMD, 13"; Q1 Standard product orientation; Orderable part number ending, 653 or HL; Ordering code (12NC) ending 653Packing2013-05-15
SOT403-1plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.1 mm bodyOutline drawing2018-11-14
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT338-1_431SSOP16; Reel pack, SMD, 13" Q1/T1 standard product orientation Orderable part number ending ,431 or Z Ordering code (12NC) ending 431Packing2016-10-05
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
SSOP-TSSOP-VSO-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08

Support

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Models

File nameTitleTypeDate
lvc138alvc138a IBIS modelIBIS model2013-04-07
lvclvc Spice modelSPICE model2013-05-06

Ordering, pricing & availability

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