.
DS1689 - (DS1689 / DS1693) 3-Volt/5-Volt Serialized Real-Time Clock
DS1688 - (DS1688 / DS1691) 3 Volt/5 Volt Serialized Real Time Clock
DS1693 - (DS1689 / DS1693) 3-Volt/5-Volt Serialized Real-Time Clock
DS1691 - (DS1688 / DS1691) 3 Volt/5 Volt Serialized Real Time Clock
