FT601Q-T USB 3.0 FIFO Interface IC Equivalent & Substitute Parts

Part Overview

The FT601Q-T is a USB Bridge interface IC manufactured by FTDI (Future Technology Devices International Ltd) that provides USB to FIFO functionality compliant with USB 3.0 standards. This 32-bit synchronous FIFO device is packaged in a 76-QFN (9x9) form factor with exposed pad and operates across a supply voltage range of 1.65V to 3.6V with an operating temperature range of -40°C to 85°C.

The FT601Q-T has been discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and maintenance applications.

Substiute Parts

FT601Q-T

FTDI, Future Technology Devices International LtdIn Stock: 938FT601Q-T Datasheet

Current PartRFQ

FT601Q-B-T

FTDI, Future Technology Devices International LtdIn Stock: 60702FT601Q-B-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FT601Q-T are identified based on strict equivalence across the following critical parameters:

• Manufacturer: FTDI (same manufacturer ensures firmware and protocol compatibility)
• Series: FT60x (same product family maintains functional equivalence)
• Function: Bridge, USB to FIFO (identical functional purpose)
• Interface Type: FIFO (same interface architecture)
• Protocol: USB 3.0 (same communication standard)
• Package / Case: 76-VFQFN Exposed Pad (identical physical and thermal characteristics)
• Supplier Device Package: 76-QFN (9x9) (identical pin count and footprint)
• Voltage - Supply: 1.65V ~ 3.6V (identical supply voltage range)
• Operating Temperature: -40°C ~ 85°C (identical thermal operating range)
• RoHS Status: ROHS3 Compliant (same environmental compliance)
• Moisture Sensitivity Level (MSL): 3 (168 Hours) (identical handling requirements)
• REACH Status: REACH Unaffected (same regulatory status)

The FT601Q-B-T is classified as a direct substitute based on complete parameter alignment across all specified criteria.

Parameter Comparison

Engineering Selection Recommendations

The FT601Q-B-T is a direct functional equivalent to the FT601Q-T. Both parts share identical electrical specifications, thermal characteristics, and package geometry. The primary distinction is product status: the FT601Q-T is discontinued at DiGi Electronics, while the FT601Q-B-T maintains active status with significantly higher inventory availability (60,596 pieces in stock versus 837 pieces for the original part).

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current manufacturing standards. The FT601Q-B-T is supplied in Tray packaging, which is standard for active production components.

Frequently Asked Questions (FAQ)

Q: Can the FT601Q-B-T be used as a direct replacement for the FT601Q-T in existing designs?

A: Yes. The FT601Q-B-T is electrically and mechanically equivalent to the FT601Q-T. Both parts share identical supply voltage ranges (1.65V ~ 3.6V), operating temperature ranges (-40°C ~ 85°C), package geometry (76-QFN 9x9), and USB 3.0 FIFO interface specifications. No design modifications are required.

Q: What is the difference between FT601Q-T and FT601Q-B-T?

A: The primary differences are packaging format and product status. The FT601Q-B-T is supplied in Tray packaging and maintains active product status with higher inventory availability. All electrical and functional specifications are identical.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. Both parts operate across the same supply voltage range (1.65V ~ 3.6V) and temperature range (-40°C ~ 85°C). Thermal characteristics, including Moisture Sensitivity Level (MSL 3, 168 Hours), are identical.

Q: Do both parts meet current environmental compliance standards?

A: Yes. Both the FT601Q-T and FT601Q-B-T are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What is the pin count and footprint compatibility?

A: Both parts use the 76-QFN (9x9) package with 76 pins and identical footprint dimensions. PCB layouts designed for the FT601Q-T are directly compatible with the FT601Q-B-T without modification.