Single inverting buffer with open-drain output for mixed-voltage buses
The SN74LVC1G06DCKRE4 operates over a supply range of 1.65V to 5.5V. The open-drain output sinks 32mA.
The 32mA sink capability is the headline output rating: it tells you this part can drive a standard LED or a low-power relay coil without an extra transistor buffer. The supply range from 1.65V to 5.5V covers 1.8V, 2.5V, 3.3V, and 5V logic rails, so one part number can serve multiple voltage domains across a design. The inverting function plus open drain means the output goes low when the input is high, and floats (high-impedance) when the input is low — useful for level translation where the pull-up voltage differs from VCC.
The SC-70-5 package is a 5-lead footprint.
Sourcing reality for the SN74LVC1G06DCKRE4
Because the part is active and widely used, it is available through multiple independent distributors. The RE4 reel suffix is a standard TI packaging code, so any distributor stocking the DCKR base part can supply the RE4 variant. No last-time-buy arithmetic needed here; this one is a straightforward production buy.