Device identity and key function
The DS1392U-18 is an SPI real-time clock IC that integrates a battery charger with trickle-charge capability — it maintains timekeeping and backup power for the RTC from a secondary cell or supercap. Marked as an active product with a current lifecycle stage, but it is RoHS non-compliant — a compliance flag for designs requiring RoHS exemption or legacy BOM support.
Sourcing and availability
Listed in Bulk packaging — the unit quantity and handling method are per the distributor's stock, not a standard reel or tray count. No stock-holding claim or lead-time figure is stated.