The MAX14502 supports SDHC, and can operate with either one or two SD card ports. This IC preserves valuable I/Os by allowing simple control through one GPIO, or an I2C interface for the 2-port option.
This device is fully specified over the -40 degrees Celsius to +85 degrees Celsius 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).