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74LV138PW

3-to-8 line decoder/demultiplexer; inverting

The 74LV138 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7). The 74LVC138A features three enable inputs (Y1, Y2 and E3). Every output will be HIGH unless Y1 and Y2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion of the 74LV138 to a 1-of-32 (5 to 32 lines) decoder with just four 74LV138 ICs and one inverter. The 74LV138 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. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess VCC.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74LV138PW 74LV138PW,118 935174390118 SOT403-1 Order product

Features and benefits

  • Wide supply voltage range from 1.0 to 5.5 V
  • Optimized for low voltage applications: 1.0 V to 3.6 V
  • CMOS low power dissipation
  • Direct interface with TTL levels
  • Typical output ground bounce < 0.8 V at VCC = 3.3 V and Tamb = 25 °C
  • Typical HIGH-level output voltage (VOH) undershoot: > 2 V at VCC = 3.3 V and Tamb = 25 °C
  • Demultiplexing capability
  • Multiple input enable for easy expansion
  • Ideal for memory chip select decoding
  • Active LOW mutually exclusive outputs
  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
  • Complies with JEDEC standards
    • JESD8-7 (1.65 V to 1.95 V)
    • JESD8-5 (2.3 V to 2.7 V)
    • JESD8C (2.7 V to 3.6 V)
    • JESD36 (4.5 V to 5.5 V)
  • ESD protection:
    • HBM JESD22-A114E 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

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)Rth(j-c) (K/W)Package name
74LV138PWProduction1.0 - 5.5TTL± 1212low-40~1251152.243TSSOP16

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
74LV138PW74LV138PW,118
( 9351 743 90118 )
ActiveLV138
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
74LV138PW74LV138PW,112
( 9351 743 90112 )
Discontinued / End-of-lifeLV138
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
Bulk Pack

Discontinuation information

Type numberOrderable part numberOrdering codeLast time buy dateLast time delivery dateReplacement productStatusComments
74LV138PW74LV138PW,1129351743901122021-12-312022-06-3074LV138PWVersion withdrawal

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
74LV138PW74LV138PW,11874LV138PW39.31.37.69E811

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
74LV138PW74LV138PW,11274LV138PW39.31.37.69E811
Quality and reliability disclaimer

Documentation (3)

File nameTitleTypeDate
74LV1383-to-8 line decoder/demultiplexer; invertingData sheet2021-07-22
lvlv Spice modelSPICE model2013-05-06
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08

Support

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Models

File nameTitleTypeDate
lvlv Spice modelSPICE model2013-05-06

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74LV138PW74LV138PW,118935174390118Reel 13" Q1/T1Order product

Sample

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Sample orders normally take 2-4 days for delivery.

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