SD 3.0-SDR104 Compliant Integrated Auto-Direction Control Memory Card Voltage Level Translator with EMI Filter and ESD Protection

NVT4857UK

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The device is an SD 3.0-compliant bidirectional dual voltage level translator with auto-direction control. It is designed to interface between a memory card operating at 1.8 V or 3.0 V signal levels and a host with a nominal supply voltage of 1.2 V to 1.8 V. The device supports SD 3.0 SDR104, SDR50, DDR50, SDR25, SDR12 and SD 2.0 High-Speed (50 MHz) and Default-Speed (25 MHz) modes. The device has an integrated voltage selectable low dropout regulator to supply the card-side I/Os, an auto-enable/ disable function connected to the VSD supply pin, built-in EMI filters and robust ESD protections (IEC 61000-4-2, level 4).

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Features

Key Features

  • Supports up to 208 MHz clock rate
  • SD 3.0 specification-compliant voltage translation to support SDR104, SDR50, DDR50, SDR25, SDR12, High-Speed and Default-Speed modes
  • 1.2 V to 1.8 V host side interface voltage support
  • Feedback channel for clock synchronization
  • 100 mA Low dropout voltage regulator to supply the card-side I/Os
  • Low power consumption by push-pull output stage with break-before-make architecture
  • Automatic enable and disable through VSD
  • Integrated pull-up and pull-down resistors: no external resistors required
  • Integrated EMI filters suppress higher harmonics of digital I/Os
  • Integrated 8 kV ESD protection according to IEC 61000-4-2, level 4 on card side
  • Level shifting buffers keep ESD stress away from the host (zero-clamping concept)
  • 20-ball WLCSP; pitch 0.4 mm

Product Longevity Program

  • This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The NVT4857UK is included in the 15-year program.

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