NVT4556: SIM card interface level translator with I2C-bus control and LDO

The NVT4556 device is built for interfacing a SIM card with a single low-voltage host-side interface. The NVT4556 contains an LDO that can deliver two different voltages, 1.8 V or 3 V, from a typical mobile phone battery voltage, and three level translators to convert the data, RSTn and CLKn signals between a SIM card and a host microcontroller.

The NVT4556 VCC pin provides power to the host side I/Os and doubles as an enable pin, for this reason it can be connected to a GPIO that matches the host side voltage. The total current draw from the VCC pin is only 100 μA maximum. The NVT4556 also uses the I²C-bus interface to enable normal operation and to select either 1.8 V or 3 V for the SIM card power supply. The NVT4556 can also disable the LDO functionality while maintaining the level translator paths so that the user can use a system-controlled regulator to power the SIM card power supply. The NVT4556 can enable users to provide second and third SIM card functionality with a low-voltage one host SIM port, at the same time reducing the number of GPIOs used in the system. The NVT4556 is compliant with all ETSI, IMT-2000 and ISO-7816 SIM/Smart card interface requirements.

The NVT4556 is available in a 12-pin WLCSP package and has three factory programmed slave address options.

Data Sheets (2)

Name/Description	Modified Date
SIM card interface level translator with I2C-bus control and LDO (REV 1.1) PDF (1.2 MB) NVT4556	25 Aug 2015
SIM card interface level translator and supply voltage LDO (REV 2.0) PDF (573.0 kB) NVT4555	24 May 2013

Users Guides (2)

Name/Description	Modified Date
OM13491, OM13492, OM13493, OM13494, OM13495, OM13496, OM13497 Breakout Board (REV 1.0) PDF (1.5 MB) UM10754	30 Oct 2013
NVT4555 evaluation board OM13480 (REV 1.0) PDF (254.0 kB) UM10707	11 Jul 2013

Brochures (4)

Name/Description	Modified Date
電圧レベルシフタ (REV 1.1) PDF (3.1 MB) 75017511_JP	16 Feb 2015
NXP® I2C SIM interface and supply voltage LDO in WLCSP (REV 1.0) PDF (861.0 kB) 75017566	14 Jul 2014
Voltage translation: How to manage mixed-voltage designs with NXP® level translators (REV 1.0) PDF (2.6 MB) 75017511	20 May 2014
NXP® WLCSP SIM card interface level translator and supply voltage LDO (REV 1.0) PDF (983.0 kB) 75017541	02 Apr 2014

Packing (1)

Name/Description	Modified Date
WLCSP12; Reel dry pack, SMD, 7" Q1/T1 standard product orientation Orderable part number ending ,012 or... (REV 1.0) PDF (269.0 kB) SOT1390-3_012	02 Jun 2015

Supporting Information (1)

Name/Description	Modified Date
Technical Information for Breakout Boards OM13491, OM13492, OM13493, OM13494, OM13495, OM13496, OM13497 (REV 1.0) PDF (1.6 MB) TECHNICALINFOFORBREAKOUTBOARD	06 Sep 2013

Ordering Information

Product	Status
NVT4555UK	Active
NVT4556AUK	Active
NVT4556BUK	Active

Package Information

Product ID	Product Status	Part NumberOrdering code(12NC)	Marking	Chemical Content	LeadFree Conversion Date	MSL	MSL LF
NVT4556AUK	Active	NVT4556AUKZ (9353 021 96012)	Standard Marking		Always Pb-free	NA	NA
NVT4555UK	Active	NVT4555UKZ (9352 989 11012)	Standard Marking	NVT4555UK	Always Pb-free	NA	NA
NVT4556BUK	Active	NVT4556BUKZ (9353 021 97012)	Standard Marking		Always Pb-free	NA	NA