Description On board 4x BSS138 logic level shifer, bi-direction. On board power regulator from 5V ->3.3V, so only need to power on 5V to use logic shifer. Can also power your target board 5V or 3V3 up to 250mA Protective diodes on 5V and 3.3V power. Breadboard friendly. Each purchase is for two pieces.
