A backup circuit that can be fabricated by the standard CMOS process and has a small circuit scale. The backup circuit (10) is disposed between a digital circuit (20) including a storage circuit and a power supply terminal (TIN, TGND) for supplying power to the digital circuit. MOS transistors (MOS1,...http://www.google.es/patents/US7376040?utm_source=gb-gplus-sharePatente US7376040 - Backup circuit for holding information in a storage circuit when power cut-off occurs
Backup circuit for holding information in a storage circuit when power cut ...