Maxim’s new MAX14502 is a Hi-Speed USB-to-SD card bridge that increases read/write speed by up to 40x in portable electronics. This IC bypasses the slow processor of original USB applications, servicing the data transfer with an integrated processor. The IC thus eliminates the time-consuming and complicated task of developing a software driver. The MAX14502 supports SDHC, and can operate with either one or two SD card ports. It preserves valuable I/Os by allowing simple control through one GPIO, or an I²C interface for the 2-port option. The device is fully specified over the -40°C to +85°C extended temperature range and is available in lead-free packages. The 1-port version is packaged in a 5 x 5 mm, 40-pin TQFN, while the 2-port version is available in a 3,23 x 3,5 mm, 56-bump WLP (wafer-level package).
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