Use two picogate devices for bidirectional level-shifting

In new mixed-voltage systems, it is often necessary to level-shift a control signal from a high level to a low level. An open-drain device, such as the 74LVC1G07, easily performs this shift. However, when a bidirectional signal requires level-shifting, it takes a bit more circuitry, because simply tying two open-drain devices pins together generates just a latch function.In new mixed-voltage systems, it is often ne