MSM6242BGS – OKI

The OKI MSM6242BGS is a CMOS real-time clock (RTC) integrated circuit designed for low-power applications. Fabricated using OKI’s silicon-gate CMOS process, the device operates from a supply voltage typically in the range of 1.8V to 5.5V, accommodating mixed-voltage digital circuits. The “SMT TUBE” designation refers to the device’s packaging for automated surface-mount assembly, delivered in a tube carrier. The “MIXED DC” likely describes the device’s power management capabilities, suggesting it can handle a range of DC input voltages and potentially incorporates internal voltage regulation or switching circuitry to optimize power consumption across different operating modes. The MSM6242BGS provides timekeeping functions including seconds, minutes, hours, day of the week, date, month, and year, with automatic leap year compensation. It communicates with a host microcontroller via a serial interface.