74ABT2541CMTC Equivalent & Substitute Parts

Part Overview

The 74ABT2541CMTC is a non-inverting buffer logic IC manufactured by onsemi, featuring 1 element with 8 bits per element and 3-state output capability. Housed in a 20-TSSOP package, this component operates across a 4.5V to 5.5V supply voltage range with output currents of 32mA (high) and 15mA (low). The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring this functional specification.

Substiute Parts

74ABT2541CMTC

onsemiIn Stock: 114174ABT2541CMTC Datasheet

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SN74ABT241APW

Texas InstrumentsIn Stock: 1517SN74ABT241APW Datasheet

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SN74ABT541BDB

Texas InstrumentsIn Stock: 898SN74ABT541BDB Datasheet

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SN74ABT541BDBR

Texas InstrumentsIn Stock: 3403SN74ABT541BDBR Datasheet

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SN74ABT541BIPWREP

Texas InstrumentsIn Stock: 1191SN74ABT541BIPWREP Datasheet

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SN74ABT541BIPWRQ1

Texas InstrumentsIn Stock: 3730SN74ABT541BIPWRQ1 Datasheet

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SN74ABT541BPW

Texas InstrumentsIn Stock: 3428SN74ABT541BPW Datasheet

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SN74ABT541BPWR

Texas InstrumentsIn Stock: 101910SN74ABT541BPWR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74ABT2541CMTC is determined by the following critical parameters:

Primary Substitution Criteria:

• Logic Type: Buffer, Non-Inverting
• Output Type: 3-State
• Voltage - Supply: 4.5V ~ 5.5V
• Operating Temperature: -40°C ~ 85°C (TA)
• Mounting Type: Surface Mount
• Series: 74ABT

Package Compatibility Levels:

1. Direct Package Match (20-TSSOP): Parts maintaining identical 20-TSSOP packaging with matching element and bit configurations enable direct board-level substitution without layout modification.

2. Alternative Package (20-SSOP): Parts using 20-SSOP packaging (0.209", 5.30mm Width) provide functional equivalence but require PCB footprint adjustment due to increased package width.

3. Configuration Variation (SN74ABT241APW): This part differs in element and bit configuration (2 elements, 4 bits per element versus 1 element, 8 bits per element) but maintains identical pin count, voltage supply, and 3-state output characteristics. Functional equivalence depends on circuit design requirements.

Output Current Consideration: The main part specifies 32mA (high) and 15mA (low) output current. All substitute parts listed provide 32mA (high) and 64mA (low), representing increased low-side current capability. This parameter difference does not prevent substitution in standard applications but should be verified against specific circuit load requirements.

Parameter Comparison

Engineering Selection Recommendations

For Direct Board-Level Substitution (No Layout Changes):

SN74ABT541BPWR, SN74ABT541BPW, SN74ABT541BIPWREP, and SN74ABT541BIPWRQ1 are functionally equivalent to the 74ABT2541CMTC. All maintain the 20-TSSOP package footprint, 1 element with 8 bits per element configuration, and identical supply voltage and operating temperature ranges. These parts are manufactured by Texas Instruments and carry active product status with ROHS3 compliance. SN74ABT541BPWR offers the highest inventory availability (101,900 pcs) and is suitable for standard commercial applications. SN74ABT541BIPWRQ1 includes automotive-grade qualification (AEC-Q100) and is appropriate for automotive applications requiring this certification.

For Package-Flexible Designs (PCB Footprint Adjustment Required):

SN74ABT541BDB and SN74ABT541BDBR provide functional equivalence with identical element and bit configuration but use 20-SSOP packaging (0.209", 5.30mm width). These parts require PCB footprint modification but maintain all electrical characteristics. SN74ABT541BDBR is supplied in Tape & Reel format with 3,300 pcs inventory availability.

For Configuration-Variant Applications:

SN74ABT241APW differs in internal configuration (2 elements, 4 bits per element) while maintaining identical pin count and 3-state output characteristics. This part is suitable only for applications where the functional architecture of two 4-bit buffers can replace one 8-bit buffer. Electrical parameters and supply voltage remain compatible.

All substitute parts listed are active products with ROHS3 compliance, ensuring long-term availability and environmental regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can I directly replace the 74ABT2541CMTC with SN74ABT541BPWR without PCB modifications?

A: Yes. SN74ABT541BPWR maintains identical 20-TSSOP packaging, element count (1), bit configuration (8 bits per element), supply voltage (4.5V ~ 5.5V), and operating temperature range (-40°C ~ 85°C). Direct board-level substitution is possible without layout changes.

Q: What is the difference between the 20-TSSOP and 20-SSOP packages?

A: Both packages contain 20 pins and are surface-mount packages. The primary difference is package width: 20-TSSOP measures 0.173" (4.40mm) while 20-SSOP measures 0.209" (5.30mm). PCB footprints are not interchangeable; designs using 20-SSOP parts require footprint modification.

Q: Why do substitute parts show higher output current on the low side (64mA vs. 15mA)?

A: The main part specifies 15mA low-side output current while all substitute parts provide 64mA. This represents increased current capability and does not prevent substitution. Verify that your circuit design can accommodate the higher current specification, particularly in load-driving applications.

Q: Is SN74ABT541BIPWRQ1 suitable for automotive applications?

A: Yes. SN74ABT541BIPWRQ1 carries automotive-grade qualification with AEC-Q100 certification, making it appropriate for automotive system designs requiring this qualification level.

Q: Can SN74ABT241APW replace the 74ABT2541CMTC functionally?

A: SN74ABT241APW differs in internal configuration: it provides 2 elements with 4 bits per element instead of 1 element with 8 bits per element. Functional replacement depends on circuit design requirements. If your application requires a single 8-bit buffer, this part is not suitable. If your design can utilize two independent 4-bit buffers, this part is compatible electrically.

Q: What is the inventory status of substitute parts?

A: SN74ABT541BPWR has the highest availability with 101,900 pcs in stock. SN74ABT541BIPWRQ1 provides 3,653 pcs, SN74ABT541BPW offers 3,400 pcs, and SN74ABT541BDBR supplies 3,300 pcs. All substitute parts are active products with confirmed stock availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All Texas Instruments substitute parts listed carry ROHS3 compliance certification, meeting environmental regulatory requirements for lead-free and restricted substance compliance.