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NXT4556UP

SIM card interface level translator

The NXT4556 device is built for interfacing a SIM card with a single low-voltage host side interface. The NXT4556 has three level translators to convert the data, RST and CLK signals between a SIM card and a host microcontroller. A high speed level translation capable of supporting class-B, class-C SIM cards. VCC_SIM power-down initiates a shutdown sequence on SIM card pins in accordance with ISO-7816-3.

The NXT4556 is compliant with all ETSI, IMT-2000 and ISO-7816 SIM/Smart card interface requirements.

Features and benefits

  • Support SIM cards and eSIM with supply voltages 1.62 V to 3.3 V

  • Host micro-controller operating voltage range: 1.08 V to 1.98 V

  • Automatic level translation of I/O, RST and CLK between SIM card and host side interface with capacitance isolation

  • Incorporates shutdown feature for the SIM card signals according to ISO-7816-3

  • High Vdis(UVLO_AC) switching level, arranging quick shut down when VCC_SIM powers down

  • Integrated pull-up resistors; no external resistor required

  • Integrated EMI Filters suppresses higher harmonics of digital I/O's

  • Low current shutdown mode < 1 μA

  • Supports clock speed beyond 5 MHz clock

  • Pb-free, Restriction of Hazardous Substances (RoHS) compliant and free of halogen and antimony (Dark Green compliant)

  • ESD protection:

    • HBM ANSI/ESDA/JEDEC JS-001 exceeds 2 kV

    • CDM ANSI/ESDA/JEDEC JS-002 exceeds 1 kV

    • IEC61000-4-2 level 4, contact and air discharge on all SIM card-side pins exceeds 8 kV and 15 kV

  • Available in 9-pin wafer level chip-scale package (WLCSP); 9 bumps; 1.06 mm x 1.06 mm x 0.43 mm body; 0.35 mm pitch

Applications

  • NXT4556 can be used with a range of SIM card attached devices including:

    • Mobile and personal phones

    • Wireless modems

    • SIM card terminals

Parametrics

Type number Product status VCC(A) (V) VCC(B) (V) Logic switching levels Output drive capability (mA) tpd (ns) Nr of bits Power dissipation considerations Tamb (°C) Rth(j-a) (K/W) Ψth(j-top) (K/W) Rth(j-c) (K/W) Package name
NXT4556UP Production 1.08 - 1.98 1.62 - 3.3 CMOS ± 1 20 3 low -40~85 106 0.15 - WLCSP9

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
NXT4556UP NXT4556UPAZ
(935691190336)		 Active z6 SOT8027-1
WLCSP9
(SOT8027-1) 		SOT8027-1 SOT8027-1_336

All type numbers in the table below are discontinued. See the table Discontinuation information for more information.

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
NXT4556UP NXT4556UPZ
(935691190084)		 Discontinued / End-of-life z6 SOT8027-1
WLCSP9
(SOT8027-1) 		SOT8027-1 Not available

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
NXT4556UP NXT4556UPAZ NXT4556UP rohs rhf rhf

All type numbers in the table below are discontinued. See the table Discontinuation information for more information.

Type number Orderable part number Chemical content RoHS RHF-indicator
NXT4556UP NXT4556UPZ NXT4556UP rohs rhf rhf
Quality and reliability disclaimer

Series

Documentation (6)

File name Title Type Date
NXT4556 SIM card interface level translator Data sheet 2022-06-15
SOT8027-1 3D model for products with SOT8027-1 package Design support 2023-02-07
nxt4556 NXT4556 IBIS model IBIS model 2021-08-31
SOT8027-1 wafer level chip-scale package; 9 bumps; 1.06 mm x 1.06 mm x 0.43 mm body Package information 2022-09-27
SOT8027-1_336 WLCSP9; Reel dry pack for SMD, 7"; Q1/T1 product orientation Packing information 2023-03-03
NXT4556UP_Nexperia_Product_Reliability NXT4556UP Nexperia Product Reliability Quality document 2023-05-29

Support

If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.

Models

File name Title Type Date
nxt4556 NXT4556 IBIS model IBIS model 2021-08-31
SOT8027-1 3D model for products with SOT8027-1 package Design support 2023-02-07

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
NXT4556UP NXT4556UPAZ 935691190336 Active SOT8027-1_336 3,000 Order product
NXT4556UP NXT4556UPZ 935691190084 Discontinued / End-of-life SOT8027-1_084 3,000 Order product

Sample

As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

Interactive datasheet

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
NXT4556UP NXT4556UPAZ 935691190336 SOT8027-1 Order product