M48T512Y sram equivalent, 4 mbit (512 kbit x 8) timekeeper sram.
* Integrated ultra low power SRAM, real-time
clock, power-fail control circuit, battery, and
crystal
)
* BCD coded year, month, day, date, hours, t(sminutes, an.
* 10 years of data retention and clock operation
ucin the absence of power d
* Pin and function compatible with i.
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