SN74HC151D Equivalent & Substitute Parts

Part Overview

The SN74HC151D is a 1 x 8:1 multiplexer logic integrated circuit manufactured by Texas Instruments in a 16-SOIC surface mount package. This part is currently discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement. The SN74HC151D operates from a single supply voltage of 2V to 6V with an operating temperature range of -40°C to 85°C, serving applications requiring data selection and multiplexing functions in digital logic circuits.

Substiute Parts

SN74HC151D

Texas InstrumentsIn Stock: 2128SN74HC151D Datasheet

Current PartRFQ

SN74HC151DR

Texas InstrumentsIn Stock: 3998SN74HC151DR Datasheet

DirectRFQ

MC74HC151ADR2G

onsemiIn Stock: 6303MC74HC151ADR2G Datasheet

DirectRFQ

74HC151D,653

Nexperia USA Inc.In Stock: 3150874HC151D,653 Datasheet

MFR RecommendedRFQ

SN74HC151DE4

Texas InstrumentsIn Stock: 1029SN74HC151DE4 Datasheet

Parametric EquivalentRFQ

SN74HC251D

Texas InstrumentsIn Stock: 1043SN74HC251D Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74HC151D is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Circuit configuration: 1 x 8:1 multiplexer function
• Package type: 16-SOIC surface mount
• Supply voltage range: 2V ~ 6V
• Voltage supply source: Single supply
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

Substitute parts are grouped into three categories based on their relationship to the main part:

Direct Manufacturer Equivalents maintain identical electrical specifications and packaging from the same or compatible manufacturers, with active product status.

Manufacturer Recommended Substitutes are designated by the original manufacturer as preferred alternatives, typically offering extended temperature ranges or improved availability.

Parametric Equivalents provide the same functional circuit configuration and package but may have minor variations in output current specifications or product discontinuation status.

Parameter Comparison

Engineering Selection Recommendations

For Active Product Status Requirement: SN74HC151DR is the direct active equivalent from Texas Instruments, maintaining identical electrical specifications and packaging. This part is recommended as the primary substitute when product continuity and manufacturer support are required.

For Extended Temperature Range: 74HC151D,653 from Nexperia USA Inc. extends the operating temperature range to -40°C ~ 125°C while maintaining the 1 x 8:1 multiplexer configuration and 16-SOIC package. This part is suitable for applications requiring broader temperature operation.

For Cross-Manufacturer Compatibility: MC74HC151ADR2G from onsemi provides functional equivalence with extended temperature range (-55°C ~ 125°C) and active product status. Output current is reduced to 5.2mA per channel, which is acceptable for most logic-level applications within the specified voltage range.

For Compliance and Certification: All substitute parts maintain ROHS3 compliance, REACH unaffected status, and moisture sensitivity level 1 (unlimited), ensuring regulatory and environmental compatibility with the original SN74HC151D.

Frequently Asked Questions (FAQ)

Q: Can SN74HC151DR be used as a direct replacement for SN74HC151D? A: Yes. SN74HC151DR is electrically and mechanically identical to SN74HC151D, with the same 16-SOIC package, voltage supply range (2V ~ 6V), operating temperature (-40°C ~ 85°C), and output current specifications (7.8mA). The primary difference is product status: SN74HC151DR is active while SN74HC151D is discontinued.

Q: What is the difference between the output current specifications of SN74HC151D and MC74HC151ADR2G? A: SN74HC151D provides 7.8mA output current per channel, while MC74HC151ADR2G provides 5.2mA. Both operate within the same voltage supply range (2V ~ 6V). The reduced output current of the onsemi part is suitable for standard logic-level applications but should be verified for designs with high capacitive loads or long trace lengths.

Q: Is 74HC151D,653 compatible with designs using SN74HC151D? A: Yes. The 74HC151D,653 from Nexperia maintains the same 1 x 8:1 multiplexer circuit, 16-SOIC package, and 2V ~ 6V supply voltage. The extended operating temperature range (-40°C ~ 125°C) provides additional margin for temperature-sensitive applications. Output current is 5.2mA per channel.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the environmental and regulatory compliance of the original SN74HC151D.

Q: Can SN74HC251D be used as a substitute for SN74HC151D? A: SN74HC251D provides the same 1 x 8:1 multiplexer function in a 16-SOIC package with identical voltage supply (2V ~ 6V) and operating temperature (-40°C ~ 85°C) specifications. However, SN74HC251D is based on the 74HC251 base product number rather than 74HC151, and is currently discontinued. Functional compatibility exists, but SN74HC151DR is the preferred active substitute.