SIM Card Interface Level Translator with EMI Filter and ESD Protection

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Block Diagram

NVT4557 Block Diagram

NVT4557 Block Diagram


Key Features

  • Supports clock speed up to 10 MHz clock
  • Compliant with ISO-7816 SIM/Smart card interface requirements
  • Support SIM card supply voltages with range of 1.65 V to 3.6 V
  • Host microcontroller operating voltage range: 1.08 V to 1.95 V
  • Automatic level translation of I/O, RSTn and CLKn between SIM card and host side interface with capacitance isolation
  • Incorporates shutdown feature for the SIM card signals according to ISO-7816-3
  • Automatic enable and disable through VCCB
  • 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 all SIM card contact pins
  • Level shifting buffers keep ESD stress away from the host (zero-clamping concept)
  • Pb-free, restriction of hazardous substances (RoHS) compliant and free of halogen and antimony (Dark Green compliant)
  • Available in 9-pin WLCSP package in 0.3 mm pitch and 10-pin XQFN10 package with 0.4 mm pitch

Product Longevity Program

  • This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The NVT4557HK is included in the 10-year program.

Part numbers include: NVT4557HK, NVT4557UK.

Comparison Table

SIM Card Level Translator
Internal LDO


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