Logic signal level conversion circuit for dynamic RAM chip`s input-output pads, has cascade protective circuit provided between low voltage transistor pairs to limit voltage drops in low voltage field effect transistors of both pairs

摘要

The circuit has a signal input (2) to apply logic signals having a signal-reference potential and a preset signal hub. A cascade protective circuit (14) is provided between low voltage transistor pairs (11, 13) to limit voltage drops in low voltage field effect transistors (11a, 11b, 13a, 13b) of both the pairs. A signal output is tapped in a gate connector of the transistors (13a, 13b) of the complementary pair (13) to output level shifted logic signals with a signal hub.