DS1216H

The DS1216H Smartwatch RAM socket by Analog Devices / Maxim Integrated provides a robust solution for creating nonvolatile memory systems. This 32-pin DIP socket integrates a CMOS watch function, an NV RAM controller, and an embedded lithium energy source. It is designed to support CMOS Static RAMs from 2K x 8 up to 512K x 8, with this specific model supporting densities up to 4M.

A key feature is its ability to maintain time and date information while also retaining RAM data, using its embedded lithium energy cell. The watch function remains transparent to RAM operations. The socket monitors VCC for out-of-tolerance conditions, automatically switching to the internal lithium source and enabling write protection to prevent data loss.

This socket is suitable for applications requiring persistent data storage and timekeeping. It features automatic leap year compensation valid up to 2100 and operates within a full ±10% voltage range. The gas-tight socket contacts ensure reliable connections. The DS1216H is mounted via a through-hole method and comes in a 32-DIP package measuring 0.600 inches (15.24mm).

With an accuracy better than ±1 minute per month at +25°C, the DS1216H ensures reliable timekeeping. The lithium energy source is electrically disconnected to retain freshness until power is applied for the first time, maximizing its lifespan.