DS1212
Nonvolatile Controller X 16 Chip
Viewing:
Part Details
- Controller circuitry with monitoring and logic functions to make CMOS RAM nonvolatile
- Controls up to 16 memories
- Monitors Vcc and write-protects when out of tolerance
- Consumes less than 100nA battery current
- Tests battery condition on power-up
- Supports redundant batteries
- Thermal operating ranges:
- DS1212: 0°C to +70°C
- DS1212-IND: -40° to +85°C
- Voltage/power-fail tolerances: 5V ±5% or ±10%
The DS1212 Nonvolatile Controller x16 Chip performs five circuit functions required to render standard CMOS RAM nonvolatile:
- Monitor Vcc using a precise comparator that detects power-fail and inhibits chip-enable
- Monitor battery status and warn the processor of low status
- Switch power between a battery and Vcc, whichever is greater
- Write-protect data
- Provide for automatically switching between two batteries
Documentation
This is the most up-to-date revision of the Data Sheet.
Latest Discussions
No discussions on DS1212 yet. Have something to say?
Start a Discussion on EngineerZone®