The DS1644-150 is a non-volatile memory module from Dallas Semiconductor. It is a 28-pin DIP package that stores up to 150 bytes of data. The module is designed for use in applications that require non-volatile memory storage. The DS1644-150 has several features that make it ideal for use in embedded systems. It has a low power consumption of only 0.3 mA, and it is capable of operating at temperatures ranging from -40°C to {+}85°C. The module also features a built-in watchdog timer, which can be used to reset the system in the event of a system failure. The DS1644-150 is ideal for use in embedded systems, such as industrial controllers, medical devices, and automotive systems. It can be used to store configuration data, program code, or other data that needs to be retained even when power is removed. The module is also suitable for use in battery-powered applications, as it can retain data for up to 10 years without power.(For reference only)
https://www.utsource.net/itm/p/664404.html