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74HC237

Selection guide

Datasheet

74HC237
(Product Specification)
12-Nov-04, 19 pages, 104 kB

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74HC237 - 3-to-8 line decoder, demultiplexer with address latches

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 74HC237 is a high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL (LSTTL). The 74HC237 is specified in compliance with JEDEC standard no. 7A.

The 74HC237 is a 3-to-8 line decoder, demultiplexer with latches at the three address inputs (An). The 74HC237 essentially combines the 3-to-8 decoder function with a 3-bit storage latch. When the latch is enabled (LE = LOW), the 74HC237 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 74HC237 is ideally suited for implementing non-overlapping decoders in 3-state systems and strobed (stored address) applications in bus oriented systems.

Features

  • Combines 3-to-8 decoder with 3-bit latch
  • Multiple input enable for easy expansion or independent controls
  • Active HIGH 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.
  • Multiple package options
  • Specified from -40 Cel to +80Cel and from -40 Cel to +125 Cel.

Products/packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
74HC237D74HC237D,6529337 571 90652Volume productionSOT109Bulk Pack, CECCStandard Marking
74HC237D74HC237D,6539337 571 90653Volume productionSOT109Reel Pack, SMD, 13", CECCStandard Marking
74HC237D/DG74HC237D/DG,1189352 898 66118Volume productionSOT109Reel Pack, SMD, 13"Standard Marking
74HC237DB74HC237DB,1129351 898 20112Volume productionSOT338-1
(SSOP16)
TubeStandard Marking
74HC237DB74HC237DB,1189351 898 20118Volume productionSOT338-1
(SSOP16)
Reel Pack, SMD, 13"Standard Marking
74HC237N74HC237N,6529337 571 80652Volume productionSOT38-4
(DIP16)
Bulk Pack, CECCStandard Marking

Quality/reliability/chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree Conversion dateRHFIRF (FIT)MTBF (hours)MSL
74HC237D74HC237D,65274HC237D
week 6, 2004 6,621,51E+081
74HC237D74HC237D,65374HC237D
week 6, 2004 6,621,51E+081
74HC237D/DG74HC237D/DG,11874HC237D_DG
Always Pb-free 6,621,51E+081
74HC237DB74HC237DB,11274HC237DB
week 12, 2005 6,621,51E+081
74HC237DB74HC237DB,11874HC237DB
week 12, 2005 6,621,51E+081
74HC237N74HC237N,65274HC237N
Always Pb-free 6,621,51E+08NA

Quality and reliability disclaimer

Pricing/ordering/availability

Type numberOrdering code(12NC)Orderable part numberIndicative price/unit($)RegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
74HC237D9337 571 90652  74HC237D,652  0.2900NAARROW ELECTRONICS776 11/19/2009Buy onlinenot available
    NADIGI-KEY CORPORATION1,769 11/20/2009Buy online 
    NAMOUSER ELECTRONICS230 11/20/2009Buy online 
    NAAVNET ELECTRONICS MARKETING340 11/19/2009Buy online 
    NAMOUSER ELECTRONICS230 11/20/2009Buy online 
74HC237D9337 571 90653  74HC237D,653  0.2900NAARROW ELECTRONICS776 11/19/2009Buy onlinenot available
    NAFUTURE ELECTRONICS22,103 11/19/2009Buy online 
    ASIASAC - Taiwanyes250011/20/2009Buy online 
74HC237D/DG9352 898 66118  74HC237D/DG,118        Order samples
74HC237DB9351 898 20112  74HC237DB,112  0.3300NADIGI-KEY CORPORATION270 11/20/2009Buy onlinenot available
74HC237DB9351 898 20118  74HC237DB,118  0.3300NAMOUSER ELECTRONICS120 11/20/2009Buy onlinenot available
    NAFUTURE ELECTRONICS100 11/19/2009Buy online 
    NAMOUSER ELECTRONICS120 11/20/2009Buy online 
74HC237N9337 571 80652  74HC237N,652  0.3000NANEWARK827 11/20/2009Buy onlineOrder samples
    NAARROW ELECTRONICS2,000 11/19/2009Buy online 
    NADIGI-KEY CORPORATION947 11/20/2009Buy online 
    NAMOUSER ELECTRONICS1,738 11/20/2009Buy online 
    NAFUTURE ELECTRONICS31,679 11/19/2009Buy online 
    NAMOUSER ELECTRONICS1,738 11/20/2009Buy online 

Design support

Support Documents

Parametrics/similar products

Type numberPackageDescriptionPropagation Delay(ns)VoltagePower Dissipation ConsiderationsLogic Switching LevelsOutput Drive Capability
74HC237DSOT109
3-to-8 Decoder/Demultiplexer with Address Latches16@5V2.0-6.0 VLow Power or Battery ApplicationsCMOS+/- 5.2 mA
74HC237D/DGSOT109
3-to-8 Decoder/Demultiplexer with Address Latches16@5V2.0-6.0 VLow Power or Battery ApplicationsCMOS+/- 5.2 mA
74HC237DBSOT338-1
(SSOP16)
3-to-8 Decoder/Demultiplexer with Address Latches16@5V2.0-6.0 VLow Power or Battery ApplicationsCMOS+/- 5.2 mA
74HC237NSOT38-4
(DIP16)
3-to-8 Decoder/Demultiplexer with Address Latches16@5V2.0-6.0 VLow Power or Battery ApplicationsCMOS+/- 5.2 mA


Similar products
74HC237 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.