| 摘要 |
Provided is a multi-path input buffer circuit, which passes a signal input to a semiconductor device through different paths in consideration of the voltage level of the input signal. The multi-path input buffer circuit includes an input buffer stage, which can be driven using one of at least two power supply voltages, outputs path signals by passing an input signal through at least two paths, selects and enables one of the path signals in response to a plurality of path selection signals, and maintains the rest of the path signals in a high impedance state. The buffer circuit also includes a level shifter, which shifts the voltage level of a signal output from the input buffer stage via the first path, and a first logic operation circuit, which operates in response to the output signal of the input buffer stage and a signal output from the level shifter.
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