3-to-8 line decoder/demultiplexer; inverting

The 74LVC138A-Q100 is a 3-to-8 line decoder/demultiplexer. It accepts three binary weighted address inputs (A0, A1 and A2). When the inputs are enabled, it 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 is 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-Q100 devices and one inverter. The 74LVC138A-Q100 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.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.


  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)
    • Specified from -40 °C to +85 °C and from -40 °C to +125 °C
  • 5 V tolerant inputs for interfacing with 5 V logic
  • Wide supply voltage range from 1.2 V 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:
    • MIL-STD-883, method 3015 exceeds 2000 V
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 Ω)
  • Multiple package options


Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Power dissipation considerationsTamb (Cel)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74LVC138ABQ-Q100Production1.2 - 3.6CMOS/LVTTL+/- 242.7low-40~1259414.563DHVQFN16
74LVC138AD-Q100Production1.2 - 3.6CMOS/LVTTL+/- 242.7low-40~1259410.153SO16
74LVC138APW-Q100Production1.2 - 3.6CMOS/LVTTL+/- 242.7low-40~1251264.856TSSOP16


SOT763-1Reel 7" Q1/T1ActiveVC138A74LVC138ABQ-Q100X
( 9353 014 09115 )
Reel 13" Q1/T1Active74LVC138AD74LVC138AD-Q100J
( 9353 009 18118 )
Reel 13" Q1/T1ActiveLVC138A74LVC138APW-Q100J
( 9353 009 19118 )
Reel 13" Q1/T1ActiveStandard Marking74LVC138APW-Q100/J
( 9356 900 93118 )


型号可订购的器件编号化学成分RoHS / RHF无铅转换日期EFRMSLMSL无铅
74LVC138ABQ-Q10074LVC138ABQ-Q100X74LVC138ABQ-Q100Always Pb-free123.811
74LVC138AD-Q10074LVC138AD-Q100J74LVC138AD-Q100Always Pb-free123.811
74LVC138APW-Q10074LVC138APW-Q100J74LVC138APW-Q100Always Pb-free123.811

文档 (17)

74LVC138A_Q1003-to-8 line decoder/demultiplexer; invertingData sheet2017-05-03
AN11009Pin FMEA for LVC familyApplication note2011-02-04
75017511Voltage translation: How to manage mixed-voltage designs with NXP level translatorsBrochure2014-05-19
75017668Low voltage CMOS family - LVCBrochure2015-07-09
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, 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 0.85 mm bodyOutline drawing2017-01-30
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
SOT109-1_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
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm bodyOutline drawing2017-01-30
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
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
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 drawing2018-02-23




Nexperia客户可通过我们的销售机构或直接通过在线样品商店订购样品。 https://extranet.nexperia.com.