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74HC137D ECAD models PCB Symbol, Footprint & ECAD Model

3-to-8 line decoder, demultiplexer with address latches; inverting

The 74HC137 is a high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL (LSTTL). The 74HC137 is specified in compliance with JEDEC standard no. 7A.

The 74HC137 is a 3-to-8 line decoder, demultiplexer with latches at the three address inputs (An). The 74HC137 essentially combines the 3-to-8 decoder function with a 3-bit storage latch. When the latch is enabled (LE = LOW), the 74HC137 acts as a 3-to-8 active LOW decoder. When the latch enable (LE) goes from LOW-to-HIGH, the last data present at the inputs before this transition, is stored in the latches. Further address changes are ignored as long as LE remains HIGH.

The output enable input (E1 and E2) controls the state of the outputs independent of the address inputs or latch operation. All outputs are HIGH unless E1 is LOW and E2 is HIGH.

The 74HC137 is ideally suited for implementing non-overlapping decoders in 3-state systems and strobed (stored address) applications in bus oriented systems.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HC137D 74HC137D,653 933757070653 SOT109-1 Order product
74HC137D 74HC137D,652 933757070652 SOT109-1 Order product

Features

  • Combines 3-to-8 decoder with 3-bit latch
  • Multiple input enable for easy expansion or independent controls
  • Active LOW mutually exclusive outputs
  • Low-power dissipation
  • Complies with JEDEC standard no. 7A
  • ESD protection:
    • HBM EIA/JESD22-A114-B exceeds 2000 V
    • MM EIA/JESD22-A115-A exceeds 200 V
  • Specified from -40 °C to +80 °C and from -40 °C to +125 °C

Target 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
74HC137DProduction2.0 - 6.0CMOS± 5.218low-40~125721.030SO16

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74HC137D74HC137D,653
( 9337 570 70653 ) 		Active74HC137D
SO16
(SOT109-1) 		SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1 CECC
74HC137D,652
( 9337 570 70652 ) 		Active74HC137DBulk Pack, CECC

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
74HC137D74HC137D,65374HC137D84.96.621.51E811
74HC137D74HC137D,65274HC137D84.96.621.51E811
Quality and reliability disclaimer

Series

Documentation (6)

File nameTitleTypeDate
74HC1373-to-8 line decoder, demultiplexer with address latches; invertingData sheet2017-03-30
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
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 drawing2018-10-18

Support

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Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74HC137D74HC137D,653933757070653Reel 13" Q1/T1 CECCOrder product
74HC137D74HC137D,652933757070652Bulk Pack, CECCOrder product

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