The 47256A FRGU refers to a 256-kilobit (Kbit) Dynamic Random-Access Memory (DRAM) chip. The “47256A” portion of the designation indicates the memory capacity, with the “A” typically signifying a specific revision or speed grade of the chip. The “FRGU” suffix likely encodes manufacturer-specific information, including the package type and speed specifications. These codes vary widely between manufacturers, making precise interpretation difficult without specific vendor documentation. This type of DRAM chip was commonly used in older electronic devices, including personal computers, embedded systems, and telecommunications equipment. Given its age, it is primarily found in legacy systems.
