3.3V Single-Piece 8Mb Nonvolatile SRAM

All versions are No Longer Available. See Ordering Information for recommended replacements.

The DS2065W is a 8Mb reflowable nonvolatile (NV) SRAM, which consists of a static RAM (SRAM), an NV controller, and an internal rechargeable manganese lithium (ML) battery. These components are encased in a surface-mount module with a 256-ball BGA footprint. Whenever V_CC is applied to the module, it recharges the ML battery, powers the SRAM from the external power source, and allows the contents of the SRAM to be modified. When V_CC is powered down or out-of-tolerance, the controller write-protects the SRAM's contents and powers the SRAM from the battery. The DS2065W also contains a power-supply monitor output, active-low RST, which can be used as a CPU supervisor for a microprocessor.

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