CD74HC237PWT Equivalent & Substitute Parts

Part Overview

The CD74HC237PWT is a Decoder/Demultiplexer logic integrated circuit manufactured by Texas Instruments in the 74HC series. This device implements a 1 x 3:8 decoder/demultiplexer function in a 16-TSSOP surface mount package. The part is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

CD74HC237PWT

Texas InstrumentsIn Stock: 2154CD74HC237PWT Datasheet

Current PartRFQ

CD74HC137PWR

Texas InstrumentsIn Stock: 1171CD74HC137PWR Datasheet

Parametric EquivalentRFQ

CD74HC137PWT

Texas InstrumentsIn Stock: 1155CD74HC137PWT Datasheet

Parametric EquivalentRFQ

CD74HC237PWR

Texas InstrumentsIn Stock: 1916CD74HC237PWR Datasheet

Parametric EquivalentRFQ

CD74HC238PWR

Texas InstrumentsIn Stock: 17985CD74HC238PWR Datasheet

Parametric EquivalentRFQ

CD74HC238PWT

Texas InstrumentsIn Stock: 2406CD74HC238PWT Datasheet

Parametric EquivalentRFQ

MC74HC138ADTR2G

onsemiIn Stock: 16680MC74HC138ADTR2G Datasheet

Parametric EquivalentRFQ

MC74HC238ADTR2G

onsemiIn Stock: 14106MC74HC238ADTR2G Datasheet

Parametric EquivalentRFQ

NLV74HC138ADTR2G

onsemiIn Stock: 3506NLV74HC138ADTR2G Datasheet

Parametric EquivalentRFQ

NLV74HC238ADTR2G

onsemiIn Stock: 913NLV74HC238ADTR2G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74HC237PWT is determined by the following critical parameters that must remain constant across all equivalent parts:

• Circuit configuration: 1 x 3:8 decoder/demultiplexer function
• Package type: 16-TSSOP surface mount
• Voltage supply range: 2V ~ 6V
• Output current specifications: 5.2mA high and low
• Operating temperature range: -55°C ~ 125°C
• Compliance standards: ROHS3, REACH Unaffected, EAR99

Substitute parts are grouped by base product number (74HC137, 74HC138, 74HC238) and manufacturer (Texas Instruments, onsemi). All listed substitutes maintain identical electrical and mechanical parameters, differing only in packaging format (Tape & Reel vs. Cut Tape) and product status.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring the CD74HC237PWT, the following selection criteria apply based on product status and compliance:

Active Status Parts (Recommended for New Designs):

• CD74HC237PWR (Texas Instruments, Cut Tape packaging)
• CD74HC238PWR (Texas Instruments, Cut Tape packaging)
• MC74HC138ADTR2G (onsemi, Cut Tape packaging)
• MC74HC238ADTR2G (onsemi, Cut Tape packaging)

These parts maintain full ROHS3 compliance and REACH Unaffected status with active manufacturer support.

Discontinued Parts (Suitable for Existing Inventory):

• CD74HC137PWR and CD74HC137PWT (Texas Instruments)
• CD74HC238PWT (Texas Instruments)

These parts are electrically and mechanically equivalent but discontinued at DiGi Electronics. Existing inventory remains available.

Obsolete Parts (Limited Availability):

• NLV74HC138ADTR2G (onsemi)
• NLV74HC238ADTR2G (onsemi)

These parts are obsolete and should be used only when existing inventory is available and no active alternatives are suitable.

All substitute parts share identical electrical specifications, package dimensions, and compliance certifications with the original CD74HC237PWT.

Frequently Asked Questions (FAQ)

Q: Can I substitute CD74HC237PWT with CD74HC238PWR? A: Yes. Both parts implement a 1 x 3:8 decoder/demultiplexer in 16-TSSOP packaging with identical voltage supply (2V ~ 6V), output current (5.2mA), and operating temperature range (-55°C ~ 125°C). The primary difference is packaging format (Tape & Reel vs. Cut Tape) and product status (Discontinued vs. Active).

Q: What is the difference between Texas Instruments and onsemi equivalents? A: Both manufacturers produce 74HC series logic devices with identical electrical and mechanical specifications. The primary differences are manufacturer part numbering conventions and product status. All listed parts maintain the same 16-TSSOP package dimensions and electrical performance.

Q: Are packaging format differences (Tape & Reel vs. Cut Tape) electrically significant? A: No. Packaging format differences affect only procurement and handling methods. The integrated circuit itself is electrically and mechanically identical regardless of packaging format. Selection should be based on assembly line requirements and inventory management practices.

Q: Why are some parts listed as Discontinued or Obsolete? A: Product status reflects current availability through distribution channels. Discontinued parts may still be available from existing inventory but lack active manufacturer support. Obsolete parts have reached end-of-life status. For new designs, Active status parts are recommended.

Q: Do all substitute parts meet the same compliance standards? A: Yes. All listed substitute parts are ROHS3 Compliant, REACH Unaffected, and classified as EAR99 for export control purposes. Moisture Sensitivity Level is 1 (Unlimited) across all parts.

Q: Can I use NLV74HC138ADTR2G or NLV74HC238ADTR2G as substitutes? A: These parts are electrically and mechanically equivalent but are classified as Obsolete. They should be used only when existing inventory is available and no Active status alternatives are suitable for your application.