The GW-1244-1 is a complete replacement for the Dallas DS1244Y NVRAM with Phantom RTC (Real Time Clock). This replacement module is designed using modern low-power components and a newer controller than used in the original DS1244Y, but is 100% electrically and software compatible with the originals.

The GW-1244-1 consists of a small circuit board, low-power SRAM, Dallas/Maxim NVRAM controller, CR1225 battery, and a 32.768 kHz clock crystal. The circuit board uses Batten & Allen leadframe pins, making it compatible with even single-wipe sockets, while also keeping module height to a minimum. The GW-1244-1 is actually slightly shorter than the original Dallas modules, despite using a coin cell holder.

The GW-1244-1 is maintainable: the CR1225 lithium cell (included) can be removed from the cell holder and replaced with the system powered up, preventing loss of NVRAM contents and RTC date/time settings. All GW-1244-1 modules are built with 100% new components sourced from reputable distributors, and are fully tested for both NVRAM and RTC functionality. Like all of our products, the GW-1244-1 is designed and made in the USA.

You can read about our development of the GW-1244-1 on our site:

https://www.glitchwrks.com/2018/03/17/gw-1244-1