LSI Bridge between UHS-I and ATA/CF

10th May 2010

ES Admin

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Tokyo Electron Device Limited (TED) has today announced the release of the TE4302 LSI. This chip has a bridge function between UHS-I of the latest high-speed interface standard for SD memory cards and MMC DDR mode of the latest standard for Multi-Media Cards (MMCs) and ATA or CF. Its sample shipments will commence in June.

The trend toward higher image quality in digital devices in recent years has led to steadily growing demand for memory media with greater capacity and a wide range of applications are requiring higher data transfer speeds, including high-speed continuous shooting function in digital cameras and long-duration recording of full high definition video in digital movie cameras. The latest standard for SD memory cards published by the SD Association*1 has defined the UHS-I interface to support higher speeds (SDR50: 50 Mbyte/second, SDR104: 104 Mbyte/second, DDR50: 50Mbyte/second, etc.).

The TE4302 is a controller LSI that supports UHS-I of the latest SD card standard and MMC DDR mode of MMC standard and has a function for bridging between these media interfaces and other interfaces such as ATA and CF. Supporting SDR104 ,which is the highest bus speed mode of the UHS-I, the LSI maximizes data transfer performance with the new generation of UHS-I SD memory cards.

To suit diversified applications, the host side interface can be configured by a mode change to connect to a 32-bit or 16-bit synchronous CPU interface instead of ATA or CF. Also, the media interface supports two channels.