DS1693 Key Features
- +3- or +5V operation
- 64-bit silicon serial number
- 64-bit customer specific ROM or additional serial number available
- Power control circuitry supports system power-on from date/time alarm or key closure
- Automatic battery backup and write protection to external SRAM
- Crystal select bit allows RTC to operate with 6 pF or 12.5 pF crystal
- 114 bytes user NV RAM
- Auxiliary battery input
- RAM clear input
- Century register