74ABT16501CSSC Equivalent & Substitute Parts

Part Overview

The 74ABT16501CSSC is an 18-bit universal bus transceiver manufactured by onsemi, housed in a 56-SSOP surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 74ABT series provides bidirectional data transmission capabilities suitable for logic-level bus applications requiring 3.3V to 5.5V operation.

Substiute Parts

74ABT16501CSSC

onsemiIn Stock: 198874ABT16501CSSC Datasheet

Current PartRFQ

SN74ABT162501DL

Texas InstrumentsIn Stock: 924SN74ABT162501DL Datasheet

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SN74ABT16501DGGR

Texas InstrumentsIn Stock: 3160SN74ABT16501DGGR Datasheet

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SN74ABT16501DL

Texas InstrumentsIn Stock: 2065SN74ABT16501DL Datasheet

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SN74ABT16501DLR

Texas InstrumentsIn Stock: 4274SN74ABT16501DLR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74ABT16501CSSC is determined by the following critical parameters:

Mandatory Matching Parameters:

• Logic Type: Universal Bus Transceiver
• Number of Circuits: 18-Bit
• Voltage - Supply: 4.5V ~ 5.5V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Moisture Sensitivity Level: 1 (Unlimited)

Package Compatibility Considerations:

• Primary package: 56-BSSOP (0.295", 7.50mm Width) / 56-SSOP
• Alternative package: 56-TFSOP (0.240", 6.10mm Width) / 56-TSSOP (reduced width variant)

Output Current Specifications: The main part specifies 3mA (high) and 64mA (low) output current. Substitute parts with 32mA (high) and 64mA (low) output current provide equivalent or superior drive capability and are functionally compatible.

All identified substitute parts meet these criteria and originate from Texas Instruments, maintaining the 74ABT series designation and functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

SN74ABT16501DLR and SN74ABT16501DL are the preferred substitutes. Both are manufactured by Texas Instruments, maintain active product status, and comply with ROHS3 standards. SN74ABT16501DLR is supplied in Tape & Reel packaging, while SN74ABT16501DL is supplied in Tube packaging. Both use the identical 56-BSSOP package footprint as the original part.

Secondary Substitute (Package Variant):

SN74ABT16501DGGR provides functional equivalence with a narrower 56-TFSOP package (0.240" width versus 0.295"). This variant is suitable only if PCB layout accommodates the reduced package width. Active product status and ROHS3 compliance are confirmed.

Alternative Consideration:

SN74ABT162501DL is discontinued at DiGi Electronics and carries dual output current specifications (32mA/64mA and 12mA/12mA). While functionally compatible, its discontinued status and dual current rating make it a secondary choice compared to active alternatives.

Frequently Asked Questions (FAQ)

Q: Can SN74ABT16501DLR directly replace 74ABT16501CSSC?

A: Yes. Both parts share identical logic type (18-bit universal bus transceiver), supply voltage (4.5V–5.5V), operating temperature range (-40°C to 85°C), and package footprint (56-BSSOP). The higher output current specification (32mA versus 3mA) of the Texas Instruments part provides equivalent or superior performance.

Q: What is the difference between SN74ABT16501DLR and SN74ABT16501DL?

A: Both parts are electrically identical. The difference is packaging: DLR is supplied in Tape & Reel format for automated assembly, while DL is supplied in Tube format for manual handling. Select based on assembly process requirements.

Q: Can SN74ABT16501DGGR be used as a drop-in replacement?

A: Electrically yes, but with a physical constraint. The DGGR variant uses a 56-TFSOP package with 0.240" width, compared to the standard 56-BSSOP at 0.295" width. PCB layout must accommodate this narrower footprint. Electrical performance is equivalent.

Q: Why is the onsemi part obsolete?

A: The 74ABT16501CSSC is classified as obsolete by the manufacturer. Texas Instruments continues to produce functionally equivalent 74ABT16501 variants in active status, making them the recommended long-term supply source.

Q: Are all substitute parts RoHS compliant?

A: Yes. All Texas Instruments substitutes (SN74ABT16501DLR, SN74ABT16501DL, SN74ABT16501DGGR) are ROHS3 compliant. The original onsemi part does not specify RoHS status.

Q: What output current should I design for?

A: The original part specifies 3mA (high) and 64mA (low). All Texas Instruments substitutes provide 32mA (high) and 64mA (low), which is a performance improvement. Designs based on the original 3mA specification will operate without modification.