| 摘要 |
PROBLEM TO BE SOLVED: To provide a semiconductor device for reducing noise, generated by signal reflection and effectively utilizing power by preserving signal reflection energy, generated at signal transmission at data transfer between semiconductor devices and using the preserved energy at signal driving. SOLUTION: Charging circuits 2, 3 each of which includes a diode and a capacitor are connected to a buffer 1. The charging circuit 2 charges up the capacitor 23 by electric charges, resulting from an overshoot by a reflected signal caused in an output signal 6, and the charging circuit 3 charges up the capacitor 33 by electric charges, resulting from undershooting by a reflected signal caused in the output signal 6 so as to recover the energy caused by overshooting or the like. A charging circuit 41 collects these electric charges and stores them to a capacitor 42, and thereafter, a stabilization circuit 43 converts the stored electric charges into power supply voltage of an internal power supply, and the power supply voltage is applied as the internal power supply. COPYRIGHT: (C)2007,JPO&INPIT
|
