M48T18-150PC1 Datasheet PDF - ST Microelectronics

The M48T18-150PC1 is a TIMEKEEPER® Non-volatile Static RAM and Real-time Clock which is pin and function compatible with the DS1643. This is a non-volatile pin and function equivalent to any JEDEC standard 8K x 8 SRAM. It also easily fits into many ROM, EPROM and EEPROM sockets providing the non-volatility of PROMs without any requirement for special write timing or limitations on the number of write that can be performed.

● Integrated ultralow power SRAM, real-time clock, power-fail control circuit and battery

● BYTEWIDE™RAM-like clock access

● BCD coded year, month, day, date, hours, minutes and seconds

● Typical clock accuracy of ±1 minute a month at 25°C

● Software controlled clock calibration for high accuracy applications

● Automatic power-fail chip deselect and WRITE protection

● 150ns Speed

●Do not wave solder SOIC to avoid damaging SNAPHAT® sockets.