SN74HC241DW Equivalent & Substitute Parts

Part Overview

The SN74HC241DW is a non-inverting buffer IC manufactured by Texas Instruments, designed for logic signal buffering applications. It features 2 elements with 4 bits per element and 3-state output capability, operating across a 2V to 6V supply voltage range. The part is currently discontinued at DiGi Electronics, making equivalent and substitute parts essential for ongoing design support and procurement.

Substiute Parts

SN74HC241DW

Texas InstrumentsIn Stock: 1628SN74HC241DW Datasheet

Current PartRFQ

SN74HC241DWR

Texas InstrumentsIn Stock: 5611SN74HC241DWR Datasheet

DirectRFQ

74HC241D,653

NXP SemiconductorsIn Stock: 2737074HC241D,653 Datasheet

MFR RecommendedRFQ

MM74HC244WM

onsemiIn Stock: 2987MM74HC244WM Datasheet

Parametric EquivalentRFQ

SN74HC244DW

Texas InstrumentsIn Stock: 3343SN74HC244DW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74HC241DW is determined by matching the following critical parameters: logic type (non-inverting buffer), element count (2), bits per element (4), output configuration (3-state), supply voltage range (2V ~ 6V), package type (20-SOIC), and mounting method (surface mount). Substitute parts are grouped into three categories based on their relationship to the main part:

Direct Manufacturer Equivalent: Parts with identical electrical specifications and packaging from the original manufacturer, differing only in packaging format or tape configuration.

Manufacturer Recommended Equivalent: Parts from alternative manufacturers meeting all electrical and functional requirements, with potential variations in operating temperature range or packaging designation.

Parametric Equivalent: Parts with matching functional and electrical parameters but from different manufacturers, potentially with minor variations in moisture sensitivity or temperature specifications.

Parameter Comparison

Engineering Selection Recommendations

SN74HC241DWR is the primary direct equivalent, offering identical electrical specifications and packaging to the SN74HC241DW with the advantage of active product status and availability in Cut Tape and Digi-Reel packaging formats. This part maintains ROHS3 compliance and MSL Level 1 rating.

74HC241D,653 from NXP Semiconductors provides an alternative from a major semiconductor manufacturer with extended operating temperature range (-40°C ~ 125°C), suitable for applications requiring higher temperature performance. This part is actively produced and widely available in bulk quantities.

MM74HC244WM from onsemi is a parametric equivalent with matching functional specifications. Note that this part carries MSL Level 3 (168 Hours) moisture sensitivity, requiring controlled storage and handling conditions compared to the MSL Level 1 rating of the main part.

SN74HC244DW from Texas Instruments is a parametric equivalent with identical electrical and thermal specifications. However, this part is also discontinued at DiGi Electronics, limiting its suitability as a long-term replacement solution.

For new designs and ongoing production, SN74HC241DWR is the recommended primary choice due to active status and direct equivalence. For applications requiring extended temperature operation, 74HC241D,653 provides a viable alternative with superior thermal range.

Frequently Asked Questions (FAQ)

Q: Can SN74HC241DWR be used as a direct replacement for SN74HC241DW?

A: Yes. SN74HC241DWR is a direct equivalent with identical electrical specifications, output current ratings, supply voltage range, operating temperature, and 20-SOIC package. The primary difference is packaging format (Cut Tape/Digi-Reel versus Tube) and active product status.

Q: What is the difference between the 74HC241 and 74HC244 base part numbers?

A: While both are non-inverting buffers with 2 elements and 4 bits per element in 20-SOIC packages, they represent different product lines from their respective manufacturers. The 74HC244 variants (MM74HC244WM and SN74HC244DW) are parametric equivalents meeting the same functional requirements but are distinct part numbers.

Q: Does the extended temperature range of 74HC241D,653 affect compatibility?

A: No. The extended operating temperature range (-40°C ~ 125°C versus -40°C ~ 85°C) is a superset of the original specification, making this part compatible with all applications designed for the SN74HC241DW. Applications operating within the original -40°C ~ 85°C range will function identically.

Q: What does MSL Level 3 on the MM74HC244WM mean for handling?

A: MSL Level 3 (168 Hours) indicates the part must be stored in controlled humidity conditions and has a limited floor life of 168 hours after moisture exposure. This requires more stringent storage and handling procedures compared to MSL Level 1 parts, which have unlimited floor life. Verify your manufacturing environment supports these requirements before selecting this part.

Q: Are all substitute parts ROHS3 compliant?

A: SN74HC241DWR, MM74HC244WM, and SN74HC244DW are confirmed ROHS3 compliant. The 74HC241D,653 from NXP does not specify RoHS status in the provided data. Verify compliance documentation with the supplier if RoHS certification is a requirement for your application.

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

A: Yes, all substitute parts use the identical 20-SOIC package footprint (0.295", 7.50mm Width) and surface mount configuration, allowing direct PCB layout compatibility without design modifications.