IC DS1210S [SMD] SOIC-16

DESCRIPTION
The DS1210 Nonvolatile Controller Chip is a CMOS circuit
which solves the application problem of converting
CMOS RAM into nonvolatile memory. Incoming power
is monitored for an out-of-tolerance condition. When
such a condition is detected, chip enable is inhibited to
accomplish write protection and the battery is switched
on to supply the RAM with uninterrupted power. Special
circuitry uses a low-leakage CMOS process which affords
precise voltage detection at extremely low battery
consumption. The 8-pin DIP package keeps PC board
real estate requirements to a minimum. By combining
the DS1210 Nonvolatile Controller Chip with a CMOS
memory and batteries, nonvolatile RAM operation can
be achieved.

FEATURES
Converts CMOS RAMs into nonvolatile memories
Unconditionally write protects when VCC is out of
tolerance
Automatically switches to battery when power fail
occurs
Space saving 8-pin DIP
Consumes less than 100 nA of battery current
Tests battery condition on power up
Provides for redundant batteries
Optional 5% or 10% power fail detection
Low forward voltage drop on the VCC switch
Optional 16-pin SOIC surface mount package
Optional industrial temperature range of
-40

Converts CMOS RAMs into nonvolatile memories
Low forward voltage drop on the VCC switch