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DS1689 Datasheet, PDF (27/32 Pages) Dallas Semiconductor – 3-Volt/5-Volt Serialized Real-Time Clock with NV RAM Control
POWER-DOWN CONDITION 3-VOLT OPERATION
DS1689/DS1693
POWER-UP CONDITION 5.0-VOLT OPERATION
POWER-DOWN CONDITION 5.0-VOLT OPERATION
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