
Texas Instruments
A pin-compatible packaging variant from the same manufacturer with identical electrical specifications.
SN74LVC1T45DBVR is a single-bit dual-supply bus transceiver from Texas Instruments in a SOT-23-6 package, designed for voltage level translation in a wide 1.65V to 5.5V range.
The parts are electrically identical.
The package and pinout are identical.
Both parts are from the same manufacturer and are widely available.
Yes, SN74LVC1T45DBVT is a direct, pin-to-pin replacement for SN74LVC1T45DBVR.
Use SN74LVC1T45DBVT, a packaging variant from the same manufacturer.
The main risk is logistical, related to ordering the correct reel size for automated assembly, not electrical or functional.

Texas Instruments
A pin-compatible packaging variant from the same manufacturer with identical electrical specifications.
| Feature / factor | SN74LVC1T45DBVR | SN74LVC1T45DBVT | Alt 2 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Function | Single-bit Bus Transceiver | Single-bit Bus Transceiver | Single-bit Bus Transceiver — Functions match. | ||
| Package | SOT-23-6 | SOT-23-6 | SOT-23-6 — Package and pin count match. | ||
| Voltage | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V — Supply voltage ranges are identical. | ||
| Temperature | -40°C to 85°C | -40 °C to 85 °C | -40 °C to 85 °C — Operating temperature ranges match. | ||
| Packaging | DBVR (3000 reel) | DBVT (250 reel) | DBVT (250 reel) — Suffix indicates different reel quantity, not a functional change. |
SN74LVC1T45DBVT is the best alternative, being the same part from Texas Instruments with a different packaging reel size. It is functionally and electrically identical.