NR8576BB modules equivalent, real-time clock modules.
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Crystal oscillator element built-in for adjustmentfree use Timer counters for second, minute, hour, day, day of the week, month, and year 2.5 to 5.5 V .
Name VSS CE I/O
– I Ground Chip enable. HIGH: Enable LOW: DATA goes high impedance; input on WR, CLK, and DATA stops; and the TM bit is cleared. FOUT output frequency select. HIGH: 1 Hz LOW: 32.768 kHz DATA input/output control switch.
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