| 摘要 |
<p>An internal circuit (151) has timing restrictions only with an internal signal transmitting/receiving circuit (102) but has no timing restrictions with an external signal receiving circuit (101). The external signal receiving circuit (101), therefore, can be laid out without any influences of the timing restrictions of the internal circuit (151). As a result, the external signal receiving circuit (101) can be laid out in such a manner that shortens the distance between the external signal receiving circuit (101) and an external clock terminal (154) and the distance between the external signal receiving circuit (101) and an external data terminal (155), while satisfying timing restrictions existing between the external signal receiving circuit (101) and the external clock terminal (154) or external data terminal (155), whereby timing restrictions occurring between an AC clock signal and an AC data signal can be easily satisfied.</p> |
