Home > ST Microelectronics new IC for UHS-I micro-SDs combines EMI filtering and ESD protection

ST Microelectronics new IC for UHS-I micro-SDs combines EMI filtering and ESD protection

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ST Microelectronics has added the new EMIF06-MSD03F3 integrated circuit (IC) to its portfolio of semiconductors for use across the spectrum of electronics applications. The new IC combines EMI filtering and Electro-Static Discharge (ESD) protection, to provide a range of unique features.

The ESD protection IC is suitable for use with a variety of electronic appliances that use SD 3.0 ultra high speed (UHS-I) micro-SD cards such as:

  • mobile phones,
  • tablets, and
  • 3G dongles.
According to Strategy Analytics research, hundreds of millions of mobile handsets are set to be equipped with UHS-I compliant SD Card slots in the near future.

With UHS class cards providing up to 2 Terabytes of storage and high-speed performance for tasks such as playing back or sharing content, recording of high-definition video and backing up data, gadgets will need ESD protection ICs more than ever.

The card slots will require protection against electro-static discharges, which can happen by simply picking up the device, possibly damaging system circuitry. The new EMI filters and ESD-protection of these ICs are optimized to UHS-I interface up to speeds of 104 Megabytes per second, ensuring full-speed communication between the card and the system.

The ESD protection ICs uses advanced miniaturised package technology and is designed for either mechanical or electrical card insertion detection, meaning that device designers can use the preferred card detection method most suitable to their application and host system.

Specifications of the ESD-protection IC for ultra high-speed (UHS-I) micro-SD card slots include:

  • miniture 1.54 x 1.54mm outline,
  • 7pF maximum load capacitance 16-bump,
  • 0.4mm pitch chip-scale package (WLCSP),
  • ST IPAD integrated passive and active device technology,
  • ±15kV ESD protection meeting IEC 61000-4-2, and
  • Protection for all SD Card data and power lines.

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