DS1218 Description
VCCI - Input +5 Volt Supply VCCO - RAM Power (VCC) Supply CEI - Chip Enable Input NC - No Connection CEO VBAT GND - Chip Enable Output - + Battery - Ground DESCRIPTION The DS1218 is a CMOS circuit which solves the application problems of converting CMOS RAM into nonvolatile memory. Ining power is monitored for an out-of-tolerance condition. When such a condition is detected, the chip enable output is inhibited to...
DS1218 Key Features
- Converts CMOS RAM into nonvolatile memories
- Unconditionally write protects when VCC is out of tolerance
- Automatically switches to battery when power fail occurs
- Space saving 8-pin PDIP or 8-pin 150 mil SO Packages
- Consumes less than 100nA of battery current
- Input +5 Volt Supply
- RAM Power (VCC) Supply
- Chip Enable Input NC
- No Connection
- Chip Enable Output