Patent ID: 8836360

Claim:
A semiconductor device comprising: a first connecting terminal; a second connecting terminal; a third connecting terminal; and a first circuit module configured to operate in response to a first operating signal comprising a first signal and a second signal; a second circuit module configured to operate in response to a second operating signal comprising a third signal and a fourth signal; and a signal distribution unit configured to: transmit the first signal from the first connecting terminal to the first circuit module and the second signal from the second connecting terminal to the first circuit module when a mode signal is in a first state, and transmit the first signal from the first connecting terminal to the first circuit module and the second signal from the third connecting terminal to the first circuit module when the mode signal is in a second state, wherein the second circuit module is configured to receive the third signal from the first connecting terminal and receive the fourth signal from the second connecting terminal, and wherein N (N≧2) signals comprising the second signal and the fourth signal are applied to the second connecting terminal when the mode signal is in the first state, while N−1 signals comprising the fourth signal are applied to the second connecting terminal when the mode signal is in the second state.