Contextual Info: D S 1746/D S1746P PRELIMINARY DALLAS SEMICONDUCTOR DS1746/S1746P Y2KC Nonvolatile Timekeeping RAM FEATURES PIN ASSIGNMENT • Integrated NV SRAM, real tim e clock, crystal, powerfail control circuit and lithium energy source NC • Clock registers are accessed identical to the static

Contextual Info: DS 1746/D S1746P PRELIMINARY DALLAS SEMICONDUCTOR D S 1 7 4 6 /D S 1 7 4 6 P Y2KC Nonvolatile Timekeeping RAM FEATURES PIN ASSIGNMENT • Integrated NV SRAM, real tim e clock, crystal, powerfail control circuit and lithium energy source • Clock registers are accessed identical to the static