SN74AC241DW Equivalent & Substitute Parts

Part Overview

The SN74AC241DW is a non-inverting buffer logic IC manufactured by Texas Instruments, designed for 2-element, 4-bit per element configurations with 3-state output capability. This 20-SOIC surface mount device operates across a 2V to 6V supply voltage range and delivers 24mA output current at both high and low states. The part is currently in Last Time Buy status, making identification of equivalent and substitute components essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	SN74AC241DW
Manufacturer	Texas Instruments
Logic Type	Buffer, Non-Inverting
Number of Elements	2
Number of Bits per Element	4
Output Type	3-State
Current - Output High, Low	24mA, 24mA
Voltage - Supply	2V ~ 6V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	20-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Product Status	Last Time Buy

Substitute Part Grouping Explanation

Substitution of the SN74AC241DW is determined by strict equivalence across the following critical parameters: logic type (non-inverting buffer), element configuration (2 elements, 4 bits per element), output type (3-state), output current capability (24mA high and low), supply voltage range (2V to 6V), operating temperature range (-40°C to 85°C), and physical package (20-SOIC surface mount). All substitute parts listed maintain identical electrical and mechanical specifications within these parameters. Packaging format (tube versus tape & reel) and manufacturer differences do not affect functional equivalence.

Parameter Comparison

Parameter	SN74AC241DW	SN74AC241DWR	74AC244SC	MC74AC244DWG	SN74AC244DW
Manufacturer	Texas Instruments	Texas Instruments	Fairchild Semiconductor	onsemi	Texas Instruments
Logic Type	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting
Number of Elements	2	2	2	2	2
Number of Bits per Element	4	4	4	4	4
Output Type	3-State	3-State	3-State	3-State	3-State
Current - Output High, Low	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA
Voltage - Supply	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	20-SOIC	20-SOIC	20-SOIC	20-SOIC	20-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Not specified	ROHS3 Compliant	ROHS3 Compliant
Product Status	Last Time Buy	Active	Active	Active	Discontinued at DiGi Electronics
Packaging Format	Tube	Tape & Reel	Not specified	Tube	Tube

Engineering Selection Recommendations

For applications currently using SN74AC241DW, the SN74AC241DWR represents the direct manufacturer equivalent from Texas Instruments with identical electrical specifications and ROHS3 compliance. The primary difference is packaging format (tape & reel versus tube), which does not affect functional performance. This part maintains Active product status, ensuring long-term availability.

The 74AC244SC from Fairchild Semiconductor and MC74AC244DWG from onsemi are parametric equivalents meeting all electrical and mechanical requirements. Both maintain the 20-SOIC package, 3-state output configuration, and identical current and voltage specifications. The MC74AC244DWG carries ROHS3 compliance; however, its moisture sensitivity level is rated at MSL 3 (168 hours) compared to MSL 1 (unlimited) for the primary part.

The SN74AC244DW from Texas Instruments is functionally equivalent but carries Discontinued at DiGi Electronics status, limiting its suitability for new production planning despite current inventory availability.

Frequently Asked Questions (FAQ)

Q: Can SN74AC241DWR be used as a direct replacement for SN74AC241DW?

A: Yes. Both parts are manufactured by Texas Instruments with identical electrical specifications, operating temperature range, supply voltage, output current capability, and 20-SOIC package. The only difference is packaging format (tape & reel versus tube), which does not affect circuit performance.

Q: What is the difference between the 74AC241 and 74AC244 base product numbers?

A: Both are non-inverting buffers with 2 elements and 4 bits per element in 20-SOIC packages with identical electrical parameters. The base product number difference reflects internal design variations between manufacturers but does not affect functional equivalence for this application.

Q: Are there compliance differences between substitute parts?

A: SN74AC241DW, SN74AC241DWR, MC74AC244DWG, and SN74AC244DW all maintain ROHS3 compliance. The MC74AC244DWG specifies MSL 3 (168 hours) moisture sensitivity versus MSL 1 (unlimited) for other parts, which may affect storage and handling requirements in high-humidity environments.

Q: Why is SN74AC244DW listed as a substitute if it is discontinued?

A: SN74AC244DW maintains full parametric equivalence and current inventory availability. However, its Discontinued at DiGi Electronics status indicates limited future procurement viability and is not recommended for new production designs.

Q: Does packaging format affect electrical performance?

A: No. Tube and tape & reel packaging formats contain identical die and lead configurations. The difference is only in the physical delivery and handling format for automated assembly processes.

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