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74LV138BQ

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
74LV138BQ 74LV138BQ,115 935285577115 SOT763-1 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
74LV138BQProduction1.0 - 5.5TTL± 1212low-40~125836.550DHVQFN16

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
74LV138BQ74LV138BQ,115
( 9352 855 77115 )
ActiveLV138
DHVQFN16
(SOT763-1)
SOT763-1Reel 7” Q1/T1 or Q2/T3

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
74LV138BQ74LV138BQ,11574LV138BQ39.31.37.69E811
Quality and reliability disclaimer

Documentation (2)

File nameTitleTypeDate
74LV1383-to-8 line decoder/demultiplexer; invertingData sheet2021-07-22
lvlv Spice modelSPICE model2013-05-06

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
74LV138BQ74LV138BQ,115935285577115Reel 7” Q1/T1 or Q2/T3Order product

Sample

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