SN74LVC2T45DCTTG4 Equivalent & Substitute Parts

Part Overview

The SN74LVC2T45DCTTG4 is a voltage level translator IC from Texas Instruments' 74LVC series, designed for bidirectional translation between different voltage domains. This device features 1 circuit with 2 channels per circuit, supporting data rates up to 420 Mbps with tri-state, non-inverted output configuration. The part is currently discontinued at DiGi Electronics, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued system support and procurement.

Substiute Parts

SN74LVC2T45DCTTG4

Texas InstrumentsIn Stock: 767SN74LVC2T45DCTTG4 Datasheet

Current PartRFQ

SN74LVC2T45DCTT

Texas InstrumentsIn Stock: 78275SN74LVC2T45DCTT Datasheet

MFR RecommendedRFQ

SN74LVC2T45DCTR

Texas InstrumentsIn Stock: 35434SN74LVC2T45DCTR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LVC2T45DCTTG4 is determined by strict equivalence across all critical electrical and mechanical parameters. The primary substitution criteria are:

Electrical Parameters: Voltage level translation capability (VCCA and VCCB ranges of 1.65 V ~ 5.5 V), bidirectional channel configuration (1 circuit, 2 channels), tri-state non-inverted output type, and 420 Mbps data rate performance.

Mechanical Parameters: Surface mount packaging in 8-LSSOP/8-MSOP form factor with 0.110" width (2.80mm), SM8 supplier device package designation.

Compliance & Status: RoHS3 compliance, MSL Level 1, and REACH unaffected status must be maintained.

The identified substitute parts SN74LVC2T45DCTT and SN74LVC2T45DCTR are functionally and mechanically identical to the main part, with the primary distinction being packaging format (Cut Tape & Digi-Reel) and active product status, making them direct replacements for procurement and design purposes.

Parameter Comparison

Engineering Selection Recommendations

Both SN74LVC2T45DCTT and SN74LVC2T45DCTR are direct functional and mechanical equivalents to the SN74LVC2T45DCTTG4. Selection between these active alternatives should be based on procurement requirements and packaging format availability.

SN74LVC2T45DCTT is recommended as the primary substitute, offering active product status with 78,178 units in stock and availability in both Cut Tape and Digi-Reel packaging formats, ensuring supply chain continuity.

SN74LVC2T45DCTR serves as a secondary alternative with active product status and 35,400 units in stock, also available in Cut Tape and Digi-Reel formats.

Both substitutes maintain full compliance with RoHS3, REACH, and MSL Level 1 requirements. The electrical performance, voltage translation range, data rate capability, and operating temperature specifications are identical across all three part numbers, ensuring drop-in compatibility in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC2T45DCTT or SN74LVC2T45DCTR be used as direct replacements for SN74LVC2T45DCTTG4?

A: Yes. Both substitute parts are electrically and mechanically identical to the main part. They feature the same voltage translation range (1.65 V ~ 5.5 V on both VCCA and VCCB), bidirectional 2-channel configuration, 420 Mbps data rate, tri-state non-inverted output, and 8-LSSOP/8-MSOP SM8 package. The primary difference is product status (active vs. discontinued) and packaging format availability.

Q: What is the difference between SN74LVC2T45DCTT and SN74LVC2T45DCTR?

A: Both parts are electrically and mechanically equivalent. The distinction lies in packaging format availability and inventory levels. SN74LVC2T45DCTT offers 78,178 units in stock with Cut Tape and Digi-Reel options. SN74LVC2T45DCTR provides 35,400 units in stock with the same packaging format options. Selection should be based on procurement quantity requirements and supplier availability.

Q: Are the substitute parts RoHS and REACH compliant?

A: Yes. Both SN74LVC2T45DCTT and SN74LVC2T45DCTR are ROHS3 compliant and REACH unaffected, matching the compliance status of the original part.

Q: What is the MSL rating for these parts?

A: All three parts carry MSL Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can these parts operate across the full voltage range specified?

A: Yes. Both VCCA and VCCB support the 1.65 V ~ 5.5 V range, enabling flexible voltage level translation between different logic domains within this specification.

Q: What is the maximum data rate supported?

A: All three parts support 420 Mbps data rate performance for bidirectional signal translation.

Q: Are there any package or pinout differences between the substitute parts and the original?

A: No. All three parts use identical 8-LSSOP/8-MSOP packaging with 0.110" (2.80mm) width and SM8 supplier device package designation, ensuring mechanical and electrical compatibility.