Datasheet

DS1306

10 of 22

Figure 4. POWER-SUPPLY CONFIGURATIONS

NOTE: DEVICE DOES NOT PROVIDE AUTOMATIC WRITE PROTECTION.

NOTE: DEVICE IS WRITE-PROTECTED IF V

< V

CCTP

CONFIGURATION 1: BACKUP SUPPLY IS

NONRECHARGEABLE LITHIUM BATTERY

CONFIGURATION 2: BACKUP SUPPLY IS A

RECHARGEABLE BATTERY OR SUPER

CAPACITOR

CONFIGURATION 3: BATTERY OPERATE

MODE