DS1212Q Maxim Integrated Products, DS1212Q Datasheet
DS1212Q
Specifications of DS1212Q
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DS1212Q Summary of contents
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FEATURES Converts full CMOS RAM into nonvolatile memory Unconditionally write protects when V out of tolerance Automatically switches to battery when power-fail occurs decoder provides control for CMOS RAMs Consumes less than 100 ...
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By combining the DS1212 Nonvolatile Controller chip and lithium batteries, nonvolatile RAM operation can be achieved for CMOS memories. OPERATION The DS1212 performs six circuit functions required to decode and battery back up a bank of up ...
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NONVOLATILE CONTROLLER/DECODER Figure 1 INPUTS CE0 ...
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ABSOLUTE MAXIMUM RATINGS* Voltage on Any Pin Relative to Ground Operating Temperature Storage Temperature Soldering Temperature * This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the ...
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CAPACITANCE PARAMETER Input Capacitance Output Capacitance AC ELECTRICAL CHARACTERISTICS PARAMETER Propagation Delay CE High to Power-Fail CE Address Setup PARAMETER Recovery at Power-Up V Slew Rate Power-Down CC V Slew Rate Power-Down CC V Slew Rate Power-Up CC Pulse Width ...
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TIMING DIAGRAM: DECODER TIMING DIAGRAM: POWER-UP TIMING DIAGRAM: POWER-DOWN DS1212 ...
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TYPICAL APPLICATION Figure 2 OUTPUT LOAD Figure 3 NOTES: 1. All voltages referenced to ground. 2. Only one battery input is required. 3. Measured with V and CE0 CCO the maximum average load which the DS1212 can ...