The MX29LV040CQI-90G is a high-performance 4Mbit (512K x 8 / 256K x 16), flash memory device from Macronix. It features an extended temperature range of 0°C to 90°C, and is packaged in the industry standard 48 TSOP II package. This device is suitable for applications such as digital consumer electronics, portable data storage, and embedded systems that require fast access to large amounts of data with a wide temperature range. The MX29LV040CQI-90G has a 70ns access time and random read speed of 70MHz, with a maximum clock frequency of 40MHz. It is also Erase/ Programming cycles rated 1,000 to 10,000, depending on the sector size chosen.