NVT4858HKZ

NVT4858HKZ is a SD, SDIO, mini SD, micro SD and SIM card voltage level translator with EMI filter and ESD protection. It is an SD 3.0-compliant bidirectional dual voltage level translator with auto-direction control. It is designed to interface between a memory or SIM card operating between 1.62V to 3.6V signal levels and a host with a supply voltage of 1.08V to 1.98V. The device supports SD 3.0 SDR104, SDR50, DDR50, SDR25, SDR12 and SD 2.0 high-speed (50MHz) and default-speed (25MHz) modes. The device has an auto-enable/ disable function connected to the VCCB supply pin, built-in EMI filters and robust ESD protections (IEC 61000-4-2, level 4) on VCCB or any of the card side pins. External ESD diodes are not required. This device also supports SIM card voltage level translator using CLK and two of the data lines for SD and SIM card combo sockets. Application includes smart phones, mobile handsets, digital cameras, tablet PCs, laptop computers, SD, MMC or microSD card readers.

• Compliant with ISO-7816 SIM/smart card interface requirements
• Feedback channel for clock synchronization
• Low power consumption by push-pull output stage with break-before-make architecture
• Automatic enable and disable through VCCB, integrated pull-up and pull-down resistors
• Integrated EMI filters suppress higher harmonics of digital I/Os
• Integrated 8KV ESD protection according to IEC 61000-4-2, level 4 on VCCB or any of card side pins
• Level shifting buffers keep ESD stress away from the host (zero-clamping concept)
• Supply voltage range from -0.5 to +2.4V (on pin VCCA), -0.5 to +4.0V (on pin VCCB)
• Total power dissipation is 1000mW max (Tamb = -40°C to +85°C)
• XQFN16 package, ambient temperature range from -40 to +85°C