DS1234
Description
The DS1234 is a CMOS circuit that converts CMOS RAM into nonvolatile memory and adds two software selectable switches.
Key Features
- Converts CMOS static RAMs into nonvolatile
- Software-controlled write inhibit
- Software-controlled battery disconnect extends
- Unconditionally write protects when VCC is out of
- Consumes less than 100 nA of battery current
- Power fail signal can be used to interrupt processor on
- Low forward voltage drop on the VCC switch
- Optional 16-pin SOIC surface mount package
