SN74LVC1T45DBVRG4 Equivalent & Substitute Parts

Part Overview

The SN74LVC1T45DBVRG4 is a voltage level translator IC from Texas Instruments, designed for bidirectional signal translation between different voltage domains. This single-channel, single-circuit translator operates across supply voltages from 1.65V to 5.5V on both sides (VCCA and VCCB), with a data rate of 420Mbps and tri-state, non-inverted output configuration. The part is packaged in SOT-23-6 surface mount format and is ROHS3 compliant with MSL Level 1 rating.

The SN74LVC1T45DBVRG4 is currently discontinued at DiGi Electronics. Equivalent and substitute parts are available to maintain design continuity and ensure project timelines are not disrupted.

Substiute Parts

SN74LVC1T45DBVRG4

Texas InstrumentsIn Stock: 911SN74LVC1T45DBVRG4 Datasheet

Current PartRFQ

SN74LVC1T45DBVR

Texas InstrumentsIn Stock: 281055SN74LVC1T45DBVR Datasheet

Parametric EquivalentRFQ

SN74LVC1T45DBVT

Texas InstrumentsIn Stock: 8287SN74LVC1T45DBVT Datasheet

Parametric EquivalentRFQ

74LVC1T45W6-7

Diodes IncorporatedIn Stock: 3330174LVC1T45W6-7 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74LVC1T45DBVRG4 is determined by strict equivalence across the following critical parameters:

• Translator Type: Voltage Level
• Channel Type: Bidirectional
• Number of Circuits: 1
• Channels per Circuit: 1
• Voltage Range (VCCA and VCCB): 1.65V ~ 5.5V
• Output Type: Tri-State, Non-Inverted
• Data Rate: 420Mbps
• Package / Case: SOT-23-6
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1

Parts meeting all these criteria are classified as parametric equivalents. Parts with identical electrical specifications but different package suppliers or minor packaging variations are direct replacements. Parts with extended operating temperature ranges or different supplier packaging formats are listed as upgrades when all core electrical parameters match.

Parameter Comparison

Engineering Selection Recommendations

Parametric Equivalents (Direct Replacements):

SN74LVC1T45DBVR and SN74LVC1T45DBVT are parametric equivalents of the SN74LVC1T45DBVRG4. Both parts are manufactured by Texas Instruments and maintain identical electrical specifications, voltage ranges, data rates, and operating temperature ranges. The primary difference is packaging format: SN74LVC1T45DBVR is supplied in Cut Tape (CT) & Digi-Reel® format with 280,995 units in stock, while SN74LVC1T45DBVT is also supplied in Cut Tape (CT) & Digi-Reel® format with 8,220 units in stock. Both parts are currently active products and fully compliant with ROHS3 and REACH requirements. These parts are suitable for direct substitution in applications requiring the SN74LVC1T45DBVRG4.

Upgrade Option:

74LVC1T45W6-7 from Diodes Incorporated is classified as an upgrade option. While manufactured by a different supplier, this part maintains all core electrical specifications including bidirectional translation, voltage ranges (1.65V ~ 5.5V), tri-state non-inverted output, and SOT-23-6 package compatibility. The upgrade provides an extended operating temperature range of -40°C ~ 125°C compared to the standard -40°C ~ 85°C range. The supplier device package is SOT-26, which maintains physical and electrical compatibility with SOT-23-6 footprints. This part is currently active with 33,200 units in stock and is ROHS3 compliant. The upgrade is suitable for applications requiring enhanced thermal performance or extended temperature operation.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC1T45DBVR be used as a direct replacement for SN74LVC1T45DBVRG4?

A: Yes. SN74LVC1T45DBVR is a parametric equivalent with identical electrical specifications, voltage ranges, data rates, and operating temperature range. The only difference is the packaging format (Cut Tape & Digi-Reel® versus the original packaging). Both parts are ROHS3 compliant and MSL Level 1 rated.

Q: What is the difference between SN74LVC1T45DBVR and SN74LVC1T45DBVT?

A: Both are parametric equivalents with identical electrical specifications. The difference is inventory availability and supplier packaging format. SN74LVC1T45DBVR has significantly higher stock (280,995 units) compared to SN74LVC1T45DBVT (8,220 units). Both are supplied in Cut Tape (CT) & Digi-Reel® format.

Q: Why is 74LVC1T45W6-7 classified as an upgrade rather than a direct equivalent?

A: The 74LVC1T45W6-7 is manufactured by Diodes Incorporated rather than Texas Instruments, and the supplier device package is SOT-26 instead of SOT-23-6. However, it maintains all core electrical parameters and offers an extended operating temperature range (-40°C ~ 125°C versus -40°C ~ 85°C). The upgrade classification reflects these differences while confirming functional compatibility.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (SN74LVC1T45DBVR, SN74LVC1T45DBVT, and 74LVC1T45W6-7) are ROHS3 compliant with MSL Level 1 moisture sensitivity rating, matching the original SN74LVC1T45DBVRG4 specifications.

Q: Can I use 74LVC1T45W6-7 in applications with temperature requirements above 85°C?

A: Yes. The 74LVC1T45W6-7 supports operating temperatures up to 125°C, making it suitable for high-temperature applications. However, verify that all other system components support this extended temperature range.

Q: What is the data rate specification for 74LVC1T45W6-7?

A: The data rate for 74LVC1T45W6-7 is not specified in the provided documentation. The original SN74LVC1T45DBVRG4 and its parametric equivalents (SN74LVC1T45DBVR and SN74LVC1T45DBVT) all support 420Mbps data rate. Consult the 74LVC1T45W6-7 datasheet for specific data rate performance if this parameter is critical to your application.

Q: Are there any pin compatibility concerns between these parts?

A: All listed parts maintain the same SOT-23-6 package footprint and pin configuration. The 74LVC1T45W6-7 uses SOT-26 supplier packaging but maintains SOT-23-6 case compatibility. No PCB layout modifications are required for substitution.