5.0V PC Real-time Clock

The M48T86 is an industry standard Real Time Clock (RTC). The M48T86 is composed of a lithium energy source, quartz crystal, write protection circuitry, and a 128-byte RAM array. This provides the user with a complete subsystem packaged in either a 24-pin DIP CAPHAT, or 28-pin SNAPHAT SOIC. Functions available to the user include a non- volatile time-of-day Clock alarm interrupts, a one-hundred-year Clock with programmable interrupts, square wave output, and 128 bytes of non-volatile static RAM. By STMicroelectronics