The DS1258 128k x 16 nonvolatile (NV) SRAMs are 2,097,152-bit fully static, NV SRAMs, organized as 131,072 words by 16 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry that constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption. DIP-package DS1258 devices can be used in place of solutions that build NV 128k x 16 memory by utilizing a variety of discrete components. There is no limit on the number of write cycles that can be executed and no additional support circuitry is required for microprocessor interfacing.
10-Year Minimum Data Retention in the Absence of External Power
Data is Automatically Protected During a Power Loss
Separate Upper Byte and Lower Byte Chip-Select Inputs
Unlimited Write Cycles
Read and Write Access Times as Fast as 70ns
Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time
Full ±10% Operating Range (DS1258Y)
Optional ±5% Operating Range (DS1258AB)
Optional Industrial Temperature Range of -40°C to +85°C, Designated IND
Belle Isle 2020 05/29/2020 - 05/31/2020, Detroit, MI 2020 Detroit Grand Prix - Chevrolet Detroit Grand Prix presented by Lear Fast Facts The Chevrolet Detroit Grand Prix presented by Lear was hosted on Belle Isle, May 29 - 30 2020. The event featured the cars of the NTT IndyCar Series, the IMSA WeatherTech SportsCar Championship and the Trans Am Series presented by Pirelli. The weekend is collectively referred to as the Chevrolet Detroit Grand Prix presented by Lear and it once again featured the Chevrolet Dual in Detroit IndyCar doubleheader.
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