SN74HCS137PWR Equivalent & Substitute Parts

Part Overview

The SN74HCS137PWR is a decoder/demultiplexer logic integrated circuit manufactured by Texas Instruments in the 74HCS series. This device functions as a 1 x 3:8 decoder/demultiplexer in a 16-TSSOP surface mount package. The part is classified as Active product status and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for supply chain optimization, or when inventory levels necessitate sourcing from alternative part variants within the same functional family.

Substiute Parts

SN74HCS137PWR

Texas InstrumentsIn Stock: 2799SN74HCS137PWR Datasheet

Current PartRFQ

SN74HCS138PWR

Texas InstrumentsIn Stock: 7409SN74HCS138PWR Datasheet

Parametric EquivalentRFQ

SN74HCS237PWR

Texas InstrumentsIn Stock: 5063SN74HCS237PWR Datasheet

Parametric EquivalentRFQ

SN74HCS238PWR

Texas InstrumentsIn Stock: 229870SN74HCS238PWR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74HCS137PWR is determined by strict equivalence across the following critical parameters:

Functional Parameters:

• Decoder/Demultiplexer type classification
• 1 x 3:8 circuit configuration
• Single independent circuit
• Output current specifications: 7.8 mA high and low

Electrical Parameters:

• Single supply voltage source
• Supply voltage range: 2V to 6V
• Operating temperature range: -40°C to 125°C

Physical & Compliance Parameters:

• Surface mount mounting type
• 16-TSSOP package with 0.173" (4.40mm) width
• ROHS3 compliance
• MSL 1 rating
• Active product status

All substitute parts listed maintain identical values across these parameters. Packaging format variations (Tape & Reel versus Cut Tape & Digi-Reel) do not affect functional or electrical equivalence and represent supply chain format options only.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts are parametrically equivalent to the SN74HCS137PWR and are suitable for direct substitution in applications requiring a 1 x 3:8 decoder/demultiplexer logic circuit.

Compliance & Status Considerations:

• All substitute parts maintain Active product status, ensuring long-term availability and manufacturing support
• All parts are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements
• All parts carry MSL 1 rating, indicating unlimited shelf life under standard storage conditions
• All parts are classified under identical ECCN (EAR99) and HTSUS (8542.39.0001) codes

Packaging Format Selection:

• SN74HCS137PWR, SN74HCS138PWR, and SN74HCS237PWR are supplied in Tape & Reel format
• SN74HCS238PWR is supplied in Cut Tape and Digi-Reel format, offering alternative supply chain options
• Packaging format selection does not affect electrical or functional performance

Inventory Availability:

• SN74HCS238PWR offers the highest inventory level (229,853 pcs), providing optimal supply chain continuity
• SN74HCS138PWR provides secondary availability (7,312 pcs)
• SN74HCS237PWR provides tertiary availability (5,020 pcs)
• SN74HCS137PWR maintains current inventory (2,695 pcs)

Frequently Asked Questions (FAQ)

Q: Can SN74HCS138PWR be used as a direct replacement for SN74HCS137PWR?

A: Yes. Both parts are parametrically equivalent across all functional, electrical, and physical specifications. The 1 x 3:8 decoder/demultiplexer circuit configuration, output current ratings, supply voltage range, operating temperature range, package type, and compliance certifications are identical.

Q: What is the difference between the substitute parts?

A: The substitute parts (SN74HCS138PWR, SN74HCS237PWR, SN74HCS238PWR) differ only in base product number designation and packaging format. SN74HCS238PWR is supplied in Cut Tape and Digi-Reel format, while the others use Tape & Reel format. All other parameters remain identical.

Q: Does packaging format affect compatibility?

A: No. Packaging format (Tape & Reel versus Cut Tape & Digi-Reel) is a supply chain consideration only and does not affect electrical performance, functionality, or physical compatibility with PCB designs. The 16-TSSOP package dimensions and pin configuration remain constant across all variants.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 rating and REACH unaffected status, meeting identical environmental and regulatory requirements.

Q: Which substitute part should be selected for maximum inventory availability?

A: SN74HCS238PWR provides the highest inventory level at 229,853 pieces. This part is suitable for applications where supply chain continuity is a priority.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. All substitute parts maintain identical pin configurations, package dimensions (16-TSSOP, 0.173" x 4.40mm), and electrical specifications. No design modifications are required for substitution.

Q: What is the operating temperature range for all substitute parts?

A: All parts operate across the identical temperature range of -40°C to 125°C, supporting both industrial and commercial applications.

Q: Are the output current specifications identical across all parts?

A: Yes. All parts provide 7.8 mA output current for both high and low states, ensuring equivalent drive capability in decoder/demultiplexer applications.