Maxim has introduced the MAX14502, a Hi-Speed USB-to-SD card bridge that it claims 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 MAX14502 supports SDHC, and can operate with either one or two SD card ports. This IC preserves I/Os by allowing simple control through one GPIO, or an I²C interface for the 2-port option.
This device is 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 5mm x 5mm, 40-pin TQFN, while the 2-port version is available in a 3.23mm x 3.5mm, 56-bump WLP (wafer-level package). Prices start at $7.00 (1000-up, FOB USA).