SN74LVC1T45 in SN74 Level Translators Family
The SN74LVC1T45 is a high-performance single-bit dual-supply transceiver manufactured by Texas Instruments. Designed for asynchronous communication between devices operating at disparate voltage levels, it enables bidirectional signal translation between 1.65V and 5.5V. Its independent power rails allow flexible up-translation or down-translation, making it a critical component for interfacing legacy logic with modern low-voltage microcontrollers and FPGAs. It is widely utilized in modular designs where signal direction is controlled via a dedicated direction input pin.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | Package | Stock |
|---|---|---|
| SN74LVC1T45 (Texas Instruments) | TSSOP-6 | 199,173 |
| SN74LVC1T45DBVR (Texas Instruments) | 6-23 | 17,891 |
| SN74LVC1T45DCKR (Texas Instruments) | TSSOP-6 | 199,173 |
Variants within the SN74LVC1T45 sub-family primarily differ by package type and environmental grading. The SN74LVC1T45DBVR utilizes the SOT-23 package, while the SN74LVC1T45DCKR uses the smaller SC70 footprint. Other suffixes like QDCKRQ1 indicate AEC-Q100 automotive qualification. While the internal silicon logic remains consistent across the sub-family, selecting specific variants depends on the thermal requirements, board space constraints, and manufacturing assembly processes such as tape-and-reel specifications.
