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.
关键特性
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 100nA 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 VCCSwitch
Optional 16-Pin SO Surface Mount Package
Optional Industrial (N) Temperature Range of -40°C to +85°C
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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