Volatile is the type of memory it has. Tray-cases are available. In the case of 66-TSSOP (0.400, 10.16mm Width), it is embedded within the case. The memory size of the chip is 256Mb 64M x 4 Mb. DRAM-format memory is used in this device, which is a mainstream design. Featuring an extended operating temperature range of 0°C~70°C TA, this device allows it to be used in a variety of demanding applications. It is supplied votage within 2.5V~2.7V. There is a recommended mounting type of Surface Mount for it. It is important to note that the memory has a clock frequency rotation within the range of 200MHz. To select similar parts, many people use the device's base part number MT46V64M4. There is a note stating that this memory chip operates at 2.5V. This device must not operate below 0°C . It is recommended that operation of the part be restricted to temperatures not exceeding 70°C, otherwise damage to the part may occur as a result of overheating. As a result of the frequency of this memory chip, data can be processed at a rate of 200MHz.