SN74AS241ADW Equivalent & Substitute Parts

Part Overview

The SN74AS241ADW is a non-inverting buffer logic integrated circuit manufactured by Texas Instruments, designed for 2-element, 4-bit per element configurations with 3-state output capability. This device operates within a 4.5V to 5.5V supply voltage range and is housed in a 20-SOIC surface mount package.

The SN74AS241ADW carries an Obsolete product status. Locating equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Key Parameters

Parameter	Value
Manufacturer Part Number	SN74AS241ADW
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	15mA, 64mA
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	20-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SN74AS241ADW are determined by strict equivalence across the following critical parameters:

Logic Type: Buffer, Non-Inverting
Number of Elements: 2
Number of Bits per Element: 4
Output Type: 3-State
Current - Output High, Low: 15mA, 64mA
Voltage - Supply: 4.5V ~ 5.5V
Operating Temperature: 0°C ~ 70°C (TA)
Package / Case: 20-SOIC (0.295", 7.50mm Width)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed maintain identical electrical and mechanical specifications across these parameters. Substitution is valid based on functional equivalence within the defined parameter set.

Parameter Comparison

Parameter	SN74AS241ADW	SN74AS244ADW	SN74BCT244DW	SN74F241DW	SN74F244DW
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Series	74AS	74AS	74BCT	74F	74F
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	15mA, 64mA	15mA, 64mA	15mA, 64mA	15mA, 64mA	15mA, 64mA
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)
Package / Case	20-SOIC (0.295", 7.50mm Width)	20-SOIC (0.295", 7.50mm Width)	20-SOIC (0.295", 7.50mm Width)	20-SOIC (0.295", 7.50mm Width)	20-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Last Time Buy	Last Time Buy	Active	Last Time Buy

Engineering Selection Recommendations

Selection among equivalent parts should be based on product status and supply chain availability:

SN74F241DW carries Active product status, indicating ongoing manufacturer support and availability. This part is suitable for new designs and applications requiring long-term supply assurance.

SN74AS244ADW, SN74BCT244DW, and SN74F244DW carry Last Time Buy status, indicating limited remaining inventory from the manufacturer. These parts are suitable for replacement and maintenance applications where existing stock is available.

All substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with current manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can SN74F241DW directly replace SN74AS241ADW in existing designs?

A: Yes. Both parts maintain identical electrical specifications across logic type, output configuration, current ratings, supply voltage, operating temperature, and package form factor. Direct substitution is valid based on parametric equivalence.

Q: What is the significance of product status differences among substitute parts?

A: Product status indicates manufacturer support level. Active status (SN74F241DW) ensures ongoing availability and support. Last Time Buy status indicates limited remaining production. Obsolete status indicates no further manufacturing. Selection should align with supply chain requirements.

Q: Are all substitute parts available in the same package configuration?

A: Yes. All listed substitute parts are housed in 20-SOIC surface mount packages with identical dimensions (0.295", 7.50mm Width), ensuring mechanical compatibility with existing PCB layouts and assembly processes.

Q: Do substitute parts require any design modifications?

A: No design modifications are required. All substitute parts maintain identical electrical characteristics, including output current ratings, supply voltage range, and operating temperature specifications. Pin configuration and functional behavior remain equivalent.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification and MSL Level 1 rating, meeting current environmental and manufacturing standards.

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