GENERAL DESCRIPTION
In pass thru, the SD and USB signals pass through the MAX14502 without modification, appearing like the device is not present. In Card Reader mode, the MAX14502 implements a high-speed USB card reader that operates independently of the host microprocessor. All the capabilities of the full-speed USB port and SD card slot are preserved with the additional feature that allows a faster way for a PC to read or write to the SD card. The MAX14502 supports high-capacity SDHC cards. The 40-pin TQFN version supports one SD card, while the 56-bump wafer-level package (WLP) version supports two SD cards. The MAX14502 features advanced power-saving modes to reduce power consumption in portable applications. The low-power sleep modes allow the ability to disable internal circuit blocks, providing power-saving operating modes. The default clock input for is specified in the ordering information. The MAX14502 features the option to change the default values using the I2C interface. The MAX14502 is available in a 5mm x 5mm, 40-pin TQFN package.
Maxim Integrated
