SN65HVD1040DR – TEXAS INSTRUMENTS

The Texas Instruments SN65HVD1040DR is a single-channel, high-speed, voltage-level translator designed for interfacing 3.3V and 1.8V logic levels. It employs a robust, bidirectional architecture enabling seamless communication between systems operating at differing voltage domains. Specifically, it features a wide input voltage range of 1.65V to 3.6V and an output voltage swing capable of driving both 3.3V and 1.8V loads. The device operates with a typical propagation delay of 5ns, making it suitable for high-speed data transmission applications. Packaged in a space-saving 4-pin SOT-23 surface mount package, the SN65HVD1040DR offers excellent ESD protection (up to ±8kV HBM) and low quiescent current consumption (typically <1µA). Common applications include interfacing microcontrollers with different voltage I/O peripherals, bridging between high-speed digital interfaces like LVDS and CMOS logic, and facilitating communication in mixed-voltage systems. Its low propagation delay and robust voltage translation capabilities provide a significant advantage over simpler level-shifting solutions, minimizing signal distortion and ensuring reliable data transfer in demanding environments. The inherent bidirectional functionality eliminates the need for separate translators for each communication direction.