All PSoC Application Notes

AN2300: Non-Volatile Memory Controller with Realtime Clock

This Application Note describes a PSoCTM non-volatile memory controller. It is used to retain the values in the CMOS SRAM for long periods of time when the primary power supply is disconnected or falls below the minimum specified voltage. This design uses a battery as the secondary power supply. Also, a realtime clock is included for a very robust solution.