DM74ALS241AWMX Equivalent & Substitute Parts

Part Overview

The DM74ALS241AWMX is a non-inverting buffer IC manufactured by onsemi, featuring 2 elements with 4 bits per element and 3-state output capability. This 20-SOIC surface mount device operates across a 4.5V to 5.5V supply range and is rated for 0°C to 70°C operating temperature. The part is currently classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer	onsemi
Series	74ALS
Logic Type	Buffer, Non-Inverting
Number of Elements	2
Number of Bits per Element	4
Output Type	3-State
Current - Output High, Low	15mA, 24mA
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
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the DM74ALS241AWMX is determined by strict adherence to the following 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, 24mA
Voltage - Supply: 4.5V ~ 5.5V
Operating Temperature: 0°C ~ 70°C (TA)
Package / Case: 20-SOIC (0.295", 7.50mm Width)
Series: 74ALS

Substitute parts are categorized as follows:

Direct Manufacturer Substitute: SN74ALS241CDW (Texas Instruments) — identical electrical and mechanical specifications with different packaging format (Tube).

Similar Substitute: SN74ALS241CNSR (Texas Instruments) — matches all electrical parameters but uses 20-SO package (0.209", 5.30mm Width), a narrower variant of the SOIC footprint.

Parametric Equivalents: SN74ALS241CDWR, SN74ALS244C-1DWR, and SN74ALS244CDWR (all Texas Instruments) — meet all electrical specifications and 20-SOIC package requirements. SN74ALS244 variants use the same base architecture with identical pin configuration and electrical performance.

Parameter Comparison

Parameter	DM74ALS241AWMX (onsemi)	SN74ALS241CDW (TI)	SN74ALS241CNSR (TI)	SN74ALS241CDWR (TI)	SN74ALS244C-1DWR (TI)	SN74ALS244CDWR (TI)
Logic Type	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting
Number of Elements	2	2	2	2	2	2
Number of Bits per Element	4	4	4	4	4	4
Output Type	3-State	3-State	3-State	3-State	3-State	3-State
Current - Output High, Low	15mA, 24mA	15mA, 24mA	15mA, 24mA	15mA, 24mA	15mA, 24mA	15mA, 24mA
Voltage - Supply	4.5V ~ 5.5V	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)	0°C ~ 70°C (TA)
Package / Case	20-SOIC (0.295", 7.50mm Width)	20-SOIC (0.295", 7.50mm Width)	20-SO (0.209", 5.30mm 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	Surface Mount
Product Status	Obsolete	Last Time Buy	Discontinued at DiGi Electronics	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For applications currently using the DM74ALS241AWMX, the following selection criteria apply based on product status and compliance:

Primary Selection: SN74ALS241CDWR (Texas Instruments) — Active product status with ROHS3 compliance, identical 20-SOIC package footprint, and highest current inventory (3400 pcs). This part provides the most direct replacement path with assured long-term availability.

Alternative Selection: SN74ALS244C-1DWR or SN74ALS244CDWR (Texas Instruments) — Both maintain Active product status and ROHS3 compliance. These SN74ALS244 variants are functionally equivalent with identical electrical specifications and 20-SOIC packaging. Inventory availability is substantial (11789 pcs and 2100 pcs respectively).

Package-Variant Selection: SN74ALS241CNSR (Texas Instruments) — Suitable only if PCB layout accommodates the narrower 20-SO package (0.209" width versus 0.295"). This part is discontinued at DiGi Electronics but maintains ROHS3 compliance and identical electrical performance.

Avoid: SN74ALS241CDW (Texas Instruments) — Product status is Last Time Buy, indicating limited future availability despite current inventory levels.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS241CNSR be used as a direct replacement on existing PCBs designed for DM74ALS241AWMX?

A: No. The SN74ALS241CNSR uses a 20-SO package with 0.209" width, while the DM74ALS241AWMX uses 20-SOIC with 0.295" width. The narrower package footprint is not compatible with existing PCB layouts without redesign.

Q: What is the difference between SN74ALS241CDWR and SN74ALS244C-1DWR?

A: Both parts meet identical electrical specifications and use the same 20-SOIC package. The primary difference is the base product number (74ALS241 versus 74ALS244), though they are functionally equivalent. SN74ALS244C-1DWR has higher inventory availability (11789 pcs).

Q: Are all substitute parts ROHS3 compliant?

A: All Texas Instruments substitutes listed are ROHS3 compliant. The original DM74ALS241AWMX does not specify RoHS status.

Q: Which substitute part has the best availability?

A: SN74ALS244C-1DWR offers the highest inventory level at 11789 pcs, followed by SN74ALS241CDWR at 3400 pcs.

Q: Can I use SN74ALS241CDW for new designs?

A: SN74ALS241CDW is classified as Last Time Buy, indicating that Texas Instruments is discontinuing this part. For new designs, select from Active status parts: SN74ALS241CDWR, SN74ALS244C-1DWR, or SN74ALS244CDWR.

Q: Do all substitute parts operate at the same voltage and temperature ranges?

A: Yes. All listed substitutes operate at 4.5V to 5.5V supply voltage and 0°C to 70°C operating temperature, matching the original DM74ALS241AWMX specifications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message