IDT74FCT16500ATPVG8 Equivalent & Substitute Parts

Part Overview

The IDT74FCT16500ATPVG8 is an 18-bit universal bus transceiver manufactured by Renesas Electronics Corporation 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 continuity. The part operates across a temperature range of -40°C to 85°C and delivers 32mA output high current and 64mA output low current, making it suitable for applications requiring bidirectional data buffering and signal isolation in digital systems.

Substiute Parts

IDT74FCT16500ATPVG8

Renesas Electronics CorporationIn Stock: 790IDT74FCT16500ATPVG8 Datasheet

Current PartRFQ

SN74ABT16500BDLR

Texas InstrumentsIn Stock: 3792SN74ABT16500BDLR Datasheet

DirectRFQ

CY74FCT16500CTPVCT

Texas InstrumentsIn Stock: 2490CY74FCT16500CTPVCT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the IDT74FCT16500ATPVG8 is determined by strict alignment of the following electrical and mechanical parameters:

• Logic function: Universal bus transceiver with 18-bit configuration
• Output current specifications: 32mA high, 64mA low
• Operating temperature range: -40°C to 85°C
• Package type: 56-BSSOP surface mount
• Pin count and pinout compatibility: 56-pin SSOP

The substitute parts identified maintain these core parameters while offering improved product status or alternative packaging options. All substitutes are qualified within the same functional class and package footprint, ensuring direct compatibility in existing PCB designs.

Parameter Comparison

Engineering Selection Recommendations

For new designs and procurement, the SN74ABT16500BDLR from Texas Instruments is the preferred substitute. This part maintains all critical electrical parameters while offering active product status, ensuring long-term availability and manufacturing support. The SN74ABT16500BDLR is ROHS3 compliant and available in standard Tape & Reel packaging, supporting high-volume production workflows.

The CY74FCT16500CTPVCT remains a valid alternative for applications requiring series-level compatibility with the original IDT part. Although classified as obsolete, this part is currently in stock and available in Cut Tape and Digi-Reel packaging options. It maintains identical electrical specifications and package footprint.

Both substitutes are qualified for the full operating temperature range of -40°C to 85°C and deliver equivalent output current performance, ensuring functional equivalence in bus transceiver applications.

Frequently Asked Questions (FAQ)

Q: Can the SN74ABT16500BDLR be used as a direct replacement for the IDT74FCT16500ATPVG8?

A: Yes. Both parts are 18-bit universal bus transceivers in 56-BSSOP packages with identical output current specifications (32mA high, 64mA low) and operating temperature ranges (-40°C to 85°C). The pinout and functional behavior are compatible for direct PCB substitution.

Q: What is the difference between the 74FCT and 74ABT series?

A: Both series are universal bus transceiver logic families with equivalent electrical performance for this application. The 74ABT series (SN74ABT16500BDLR) offers active product status and ROHS3 compliance, while the 74FCT series parts are classified as obsolete. Series selection does not affect functional compatibility when electrical parameters match.

Q: Are there packaging differences between the substitute parts?

A: Yes. The SN74ABT16500BDLR is supplied in Tape & Reel (TR) packaging, while the CY74FCT16500CTPVCT is available in Cut Tape (CT) and Digi-Reel® formats. All three parts use the same 56-BSSOP surface mount package footprint. Packaging selection depends on production volume and assembly line requirements.

Q: Is the supply voltage specification critical for substitution?

A: The SN74ABT16500BDLR specifies a supply voltage range of 4.5V to 5.5V. The original IDT part and CY74FCT16500CTPVCT do not include voltage specifications in the provided data. For applications with defined supply voltage requirements, verify that the 4.5V to 5.5V range is compatible with your system design.

Q: What is the significance of the obsolete product status?

A: Obsolete status indicates that the manufacturer has discontinued production. The IDT74FCT16500ATPVG8 and CY74FCT16500CTPVCT are no longer actively manufactured. The SN74ABT16500BDLR maintains active status, ensuring continued availability and manufacturing support for future procurement needs.

Q: Are all substitute parts ROHS3 compliant?

A: The SN74ABT16500BDLR and CY74FCT16500CTPVCT are both ROHS3 compliant. The original IDT part does not include RoHS status in the provided specifications. For applications requiring RoHS compliance certification, the Texas Instruments substitutes are qualified options.