Stmicroelectronics (M48T08-100PC1) RTC, Timekeeper NVSRAM, Parallel

RTC, Timekeeper NVSRAM, Parallel, 4.75 V to 5.5 V, DIP-28Product OverviewThe M48T08-100PC1 is a 5V, 64Kbit (8Kb x 8) TIMEKEEPER non volatile static RAMand real time clock in 28 pin DIP package. This real time clock is pin andfunction compatible with DS1643. It provides highly integrated battery backedmemory and real time clock solution. The M48T08-100PC1 is a non volatile pin andfunction equivalent to any JEDEC standard 8K x 8 SRAM. It also easily fits intomany ROM, EPROM and EEPROM sockets providing the non-volatility of PROMs withoutany requirement for special WRITE timing or limitations on number of WRITEs thatcan be performed.Integrated ultra low power SRAM, real time clock, power fail control circuit andbatteryBYTEWIDE RAM like clock accessBCD coded year, month, day, date, hours, minutes and secondsTypical clock accuracy of ±1 minute a month at 25°CAutomatic power fail chip deselect and WRITE protectionFeatures WRITE protectSupply voltage range from 4.75V to 5.5VSoftware controlled clock calibration for high accuracy applicationsAmbient operating temperature range from 0°C to 70°CApplicationsClock & TimingProduct InformationDate Format: YY-MM-DD-ddClock Format: HH:MM:SSClock IC Type: TimekeeperSupply Voltage Min: 4.75VSupply Voltage Max: 5.5VClock IC Case Style: DIPNo. of Pins: 28PinsIC Interface Type: ParallelOperating Temperature Min: 0°COperating Temperature Max: 70°C