DS3065W

The DS3065W consists of a static RAM, a nonvolatile(NV) controller, a year 2000-compliant real-time clock(RTC), and an internal rechargeable manganese lithium(ML) battery. These components are encased in a sur-face-mount module with a 256-ball BGA footprint.Whenever V_CC is applied to the module, it recharges

the ML battery, powers the clock and SRAM from theexternal power source, and allows the contents of theclock registers or SRAM to be modified. When V_CC ispowered down or out-of-tolerance, the controller write-protects the memory contents and powers the clockand SRAM from the battery. The DS3065W also con-tains a power-supply monitor output (RST), as well as auser-programmable interrupt output (IRQ/FT).