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74LV138

Selection guide

Datasheet

74LV138
(Product Specification)
15-Nov-07, 17 pages, 106 kB

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74LV138 - 3-to-8 line decoder/demultplexer; inverting

General description
Features
Products/packages
Quality/reliability/chemical content
Pricing/ordering/availability
Samples
Discontinued information
Applications
Block diagrams/pinning
Design support
Parametrics/similar products
Print/email
Disclaimers
All information hereunder is subject to the subsequent disclaimers

General description

The 74LV138 is a low-voltage Si-gate CMOS device that is pin and function compatible with 74HC138 and 74HCT138.

The 74LV138 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 active LOW outputs (Y0 to Y7).

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 74LV138 devices 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. Unused enable inputs must be permanently tied to their appropriate active HIGH or LOW state.

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Features

  • Wide operating voltage: 1.0 V to 5.5 V
  • Optimized for low voltage applications: 1.0 V to 3.6 V
  • Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V
  • Typical output ground bounce < 0.8 V at VCC = 3.3 V and Tamb = 25 Cel
  • Typical HIGH-level output voltage (VOH) undershoot: > 2 V at VCC = 3.3 V and Tamb = 25 Cel
  • Demultiplexing capability
  • Multiple input enable for easy expansion
  • Ideal for memory chip select decoding
  • Active LOW mutually exclusive outputs
  • ESD protection:
    • HBM JESD22-A114E exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
  • Multiple package options
  • Specified from -40 Cel to +85 Cel and from -40 Cel to +125 Cel

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Products/packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
74LV138BQ74LV138BQ,1159352 855 77115Volume productionSOT763-1
(DHVQFN16) 		Reel Pack, SMD, 7"Standard Marking
74LV138D74LV138D,1129350 631 90112Volume productionSOT109TubeStandard Marking
74LV138D74LV138D,1189350 631 90118Volume productionSOT109Reel Pack, SMD, 13"Standard Marking
74LV138DB74LV138DB,1129351 659 60112Volume productionSOT338-1
(SSOP16) 		TubeStandard Marking
74LV138DB74LV138DB,1189351 659 60118Volume productionSOT338-1
(SSOP16) 		Reel Pack, SMD, 13"Standard Marking
74LV138N74LV138N,1129350 631 80112Volume productionSOT38-4
(DIP16) 		TubeStandard Marking
74LV138PW74LV138PW,1129351 743 90112Volume productionSOT403-1
(TSSOP16) 		TubeStandard Marking
74LV138PW74LV138PW,1189351 743 90118Volume productionSOT403-1
(TSSOP16) 		Reel Pack, SMD, 13"Standard Marking

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Quality/reliability/chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree Conversion dateRHFIRF (FIT)MTBF (hours)MSL
74LV138BQ74LV138BQ,11574LV138BQ
Always Pb-free 10,239,78E+071
74LV138D74LV138D,11274LV138D
week 6, 2004 10,239,78E+071
74LV138D74LV138D,11874LV138D
week 6, 2004 10,239,78E+071
74LV138DB74LV138DB,11274LV138DB
week 12, 2005 10,239,78E+071
74LV138DB74LV138DB,11874LV138DB
week 12, 2005 10,239,78E+071
74LV138N74LV138N,11274LV138N
Always Pb-free 10,239,78E+07NA
74LV138PW74LV138PW,11274LV138PW
week 17, 2005 10,239,78E+071
74LV138PW74LV138PW,11874LV138PW
week 17, 2005 10,239,78E+071

Quality and reliability disclaimer

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Pricing/ordering/availability

Type numberOrdering code(12NC)Orderable part numberIndicative price/unit($)RegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
74LV138BQ9352 855 77115  74LV138BQ,115        not available
74LV138D9350 631 90112  74LV138D,112  0.3000NAMOUSER ELECTRONICS1,788 11/20/2009Buy onlinenot available
    NAFUTURE ELECTRONICS175 11/19/2009Buy online 
    NAMOUSER ELECTRONICS1,788 11/20/2009Buy online 
74LV138D9350 631 90118  74LV138D,118  0.3000NAMOUSER ELECTRONICS75 11/20/2009Buy onlineOrder samples
    NAMOUSER ELECTRONICS75 11/20/2009Buy online 
74LV138DB9351 659 60112  74LV138DB,112  0.2800      not available
74LV138DB9351 659 60118  74LV138DB,118  0.2800      not available
74LV138N9350 631 80112  74LV138N,112  0.3200NADIGI-KEY CORPORATION929 11/20/2009Buy onlinenot available
74LV138PW9351 743 90112  74LV138PW,112  0.2800NAMOUSER ELECTRONICS1,170 11/20/2009Buy onlinenot available
    NAMOUSER ELECTRONICS1,170 11/20/2009Buy online 
74LV138PW9351 743 90118  74LV138PW,118  0.2800      not available
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Block diagrams/pinning

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Parametrics/similar products

Type numberPackageDescriptionPropagation Delay(ns)VoltageNo. of PinsPower Dissipation ConsiderationsLogic Switching LevelsOutput Drive Capability
74LV138DSOT109
3-to-8 Line Decoder/Demultiplexer; Inverting12@3.3V1.0-5.5 V16Low Power or Battery ApplicationsTTL+/- 12 mA
74LV138DBSOT338-1
(SSOP16)		3-to-8 Line Decoder/Demultiplexer; Inverting12@3.3V1.0-5.5 V16Low Power or Battery ApplicationsTTL+/- 12 mA
74LV138NSOT38-4
(DIP16)		3-to-8 Line Decoder/Demultiplexer; Inverting12@3.3V1.0-5.5 V16Low Power or Battery ApplicationsTTL+/- 12 mA
74LV138PWSOT403-1
(TSSOP16)		3-to-8 Line Decoder/Demultiplexer; Inverting12@3.3V1.0-5.5 V16Low Power or Battery ApplicationsTTL+/- 12 mA


Similar products
74LV138 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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