CARD READER CONTROLLER
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The ALCOR AU6437B52-GBL-GR-48T is a highly integrated, multi-format flash memory card reader controller. This device supports SD/SDHC/SDXC, MicroSD, MMC, and MS/MS Pro memory card interfaces via a single USB 2.0 interface. The controller incorporates an integrated USB transceiver and employs a dedicated hardware engine for efficient data transfer between the flash memory cards and the host system. The “48T” suffix indicates a 48-pin LQFP (Low-profile Quad Flat Package). The integrated voltage regulators provide the necessary power supplies for both the core logic and the card interfaces, minimizing external component requirements. The AU6437B52 features built-in ESD protection and supports simultaneous read/write operations to multiple card slots, enhancing overall system performance. It is typically configured via firmware loaded from an external SPI flash memory.