SN74LS541DWRG4 Equivalent & Substitute Parts

Part Overview

The SN74LS541DWRG4 is a non-inverting buffer logic integrated circuit manufactured by Texas Instruments, designed for 8-bit buffering applications with 3-state output capability. This device operates within a 4.75V to 5.25V supply voltage range and is housed in a 20-SOIC surface mount package. The SN74LS541DWRG4 is currently discontinued at DiGi Electronics, making identification of functionally equivalent alternatives necessary for ongoing design support and component procurement.

Substiute Parts

SN74LS541DWRG4

Texas InstrumentsIn Stock: 1022SN74LS541DWRG4 Datasheet

Current PartRFQ

SN74LS541DWR

Texas InstrumentsIn Stock: 3611SN74LS541DWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS541DWRG4 is determined by strict equivalence across the following critical parameters:

• Logic Type: Buffer, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: 3-State
• Current - Output High, Low: 15mA, 24mA
• Voltage - Supply: 4.75V ~ 5.25V
• Operating Temperature: 0°C ~ 70°C (TA)
• Package / Case: 20-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

The SN74LS541DWR meets all these criteria and is identified as the manufacturer-recommended substitute. Both parts share the same base product number (74LS541) and are manufactured by Texas Instruments, ensuring functional and electrical compatibility at the circuit level.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS541DWR is the direct substitute for the discontinued SN74LS541DWRG4. Both parts are manufactured by Texas Instruments and share identical electrical specifications, pin configurations, and package dimensions. The SN74LS541DWR maintains active product status with current inventory availability, making it the appropriate selection for new designs and component replacement in existing applications. Both parts comply with ROHS3 and REACH requirements, ensuring regulatory alignment. The SN74LS541DWR is available in multiple packaging formats (Cut Tape and Digi-Reel), providing flexibility for different procurement and assembly workflows.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS541DWR be used as a direct replacement for the SN74LS541DWRG4?

A: Yes. Both parts are electrically and mechanically identical. They share the same logic type, bit configuration, output characteristics, supply voltage range, operating temperature range, and 20-SOIC package dimensions. Pin-for-pin compatibility is guaranteed.

Q: What is the difference between the SN74LS541DWRG4 and SN74LS541DWR?

A: The primary difference is product status. The SN74LS541DWRG4 is discontinued, while the SN74LS541DWR is active with current inventory. The SN74LS541DWR also offers additional packaging options (Cut Tape in addition to Digi-Reel).

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited). Regulatory and environmental compliance is equivalent.

Q: What are the critical parameters for substitution in the 74LS541 family?

A: Substitution is valid when the following parameters match: logic type (non-inverting buffer), element count (1), bit count per element (8), output type (3-state), output current specifications (15mA high, 24mA low), supply voltage range (4.75V to 5.25V), operating temperature range (0°C to 70°C), and package type (20-SOIC surface mount).

Q: Can this part be used in new designs?

A: Yes. The SN74LS541DWR is the active equivalent and is suitable for new design implementations. It provides the same functional and electrical performance as the discontinued SN74LS541DWRG4.