The M48T02/12 TIMEKEEPER®RAM is a 2 Kb x 8 non-volatile static RAM and real-time clock which is pin and functional compatible with the DS1642.
A special 24-pin, 600 mil DIP CAPHAT™package houses the M48T02/12 silicon with a quartz crystal and a long life lithium button cell to form a highly integrated battery-backed memory and real-time clock solution.
The M48T02/12 button cell has sufficient capacity and storage life to maintain data and clock functionality for an accumulated time period of at least 10 years in the absence of power over the operating temperature range.
The M48T02/12 is a non-volatile pin and function equivalent to any JEDEC standard 2 Kb 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 WRITEs that can be performed.
|DS0493: 5.0 V, 16 Kbit (2 Kb X 8) TIMEKEEPER® SRAM||9.2||374.13 KB|
|AN1011: Battery technology used in NVRAM and real-time clock (RTC) products from ST||4.0||248.17 KB|
|AN934: How to use the digital calibration feature in TIMEKEEPER® and serial real-time clock (RTC) products||4.1||123.42 KB|
|AN923: Managing century information using serial real-time clocks and TIMEKEEPER® NVRAMs||4.0||142.23 KB|
|AN1009: Negative undershoot NVRAM data corruption||2.0||82.05 KB|
|AN1012: Predicting the battery life and data retention period of NVRAMs and serial RTCs||4.1||439.45 KB|
|AN925: Time update in ST's TIMEKEEPER® devices||2.0||119.68 KB|
|Products Underwriter Laboratories (UL) Information||2.1||163 KB|
|Part Number||Package||Packing Type||Marketing Status||Quantity||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|M48T12-70PC1||PDIP 24 .7||Tube||Active : Product is in volume production||1000||EAR99||MALAYSIA||MORE INFO||Buy Direct Add to cart||DISTRIBUTOR AVAILABILITY|
|M48T12-150PC1||PDIP 24 .7||Tube||Active : Product is in volume production||1000||EAR99||MALAYSIA||MORE INFO||Buy Direct Add to cart||DISTRIBUTOR AVAILABILITY|
|Part Number||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
|M48T12-70PC1||Active||PDIP 24 .7||Industrial||Ecopack1|
|M48T12-150PC1||Active||PDIP 24 .7||Industrial||Ecopack1|
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.