Dual open-drain buffer for level translation and wired-OR buses
It operates across a wide supply range of 1.65 V to 5.5 V, making it suitable for interfacing between different voltage domains in mixed-voltage systems. Each of the two elements handles one bit, and the open-drain output can sink up to 32 mA while the high-side is high-impedance, allowing wired-OR connections and level translation up to the pull-up voltage.
The open-drain output means the device can only pull the output low; the high level is achieved through an external pull-up resistor tied to the desired logic voltage. This is the key feature for level translation: the pull-up can be connected to a different supply rail than VCC, so a 3.3 V system can drive a 5 V bus or an I²C-compatible wired-AND line. The 32 mA sink capability is generous for driving LEDs, relays, or multiple fan-out loads, but the pull-up resistor must be sized to keep the rise time within the system timing budget.
Package and footprint — 6-SON for tight layouts
The SN74LVC2G07DRYR is supplied in a 6-UFDFN package with the supplier device package listed as 6-SON (1.45x1 mm). This is a very small, leadless package suited for high-density PCBs where board area is at a premium. For rework, the small SON package requires careful hot-air profiling and a stencil with the correct aperture to avoid solder bridging on the exposed pad.