... -28 4. Best price, good quality and fast delivery DescriptionNVRAM, 10 YR BATTERY 256K, 48Z35Memory Size:256KbitMemory Configuration:32K x 8NVRAM Features ... Min:4.5VTermination Type:Through Hole STMICROELECTRONICS - M48Z35Y-70PC1 - NVRAM, 10 YR BATTERY 256K, 48Z35