www.DataSheet4U.com M41T56 Serial Real Time Clock.
M41T56 - 512 bit 64b x8 Serial Access TIMEKEEPER SRAM
www.DataSheet4U.com M41T56 Serial Real Time Clock with 56 bytes NVRAM Feature summary ■ Counters for seconds, minutes, hours, day, date, month, year.M41T56C64 - Serial Real Time Clock
www.DataSheet4U.com M41T56C64 Serial Real Time Clock with 56 bytes of NVRAM + 64 Kbit (8192 bit x 8) EEPROM Feature summary ■ ■ ■ ■ 5V ±10% supply v.