M48T248V

The M48T248Y/V TIMEKEEPER^® RAM is a 128Kbit x 8 non-volatile static RAM and real time clock organized as 131,072 words by 8 bits. The special DIP package provides a fully integrated battery back-up memory and real time clock solution. In the event of power instability or absence, a self-contained battery maintains the timekeeping operation and provides power for a CMOS M48T248Y/V static RAM. Control circuitry monitors V_CC and invokes write protection to prevent data corruption in the memory and RTC.

The clock M48T248Y/V keeps track of tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, and year information. The last day of the month M48T248Y/V is automatically adjusted for months with less than 31 days, including leap year correction.

The clock M48T248Y/V operates in one of two formats:  a 12-hour mode with an AM/PM indicator; or  a 24-hour mode

The M48T248Y/V is a 32-pin (PM) DIP module that integrates the RTC, the battery, and SRAM in one package.

The M48T248Y/V are shipped in plastic, anti-static tubes (see Table 14, page 22).