| 摘要 |
<p>This invention would allow a product to have a single pin for connecting either a Super-Cap or Battery for backup power (when the External supply is switched off) versus having two separate pins, one for the Super-Cap and one for the Battery. The Battery pin generally does not require charging whereas the super-cap pin would require charging when external supply is available. In a particular nvSRAM application, this invention can be used for non-volatile devices (Like nvSRAM] where the user can set a register to specify whether a super-cap or a Battery is connected on the backup supply pin instead of having two backup supply pins - one for Super-Cap and one for Battery. Charging of the Super-cap will be done only if super-cap is connected. For that matter, any device having a non-volatile register by means of Flash or Electrical Fuse can use this invention to having single pin for backup supply with battery or Super-Cap.</p> |
