NXT4557GU Series

SIM card interface level translator with enable pin

Catalog

SIM card interface level translator with enable pin

Part	Translator Type	Voltage - VCCB [Max]	Voltage - VCCB [Min]	Channels per Circuit	Output Type	Data Rate	Supplier Device Package [y]	Supplier Device Package [x]	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - VCCA [Min]	Voltage - VCCA [Max]	Channel Type	Package / Case	Mounting Type	Number of Circuits
Nexperia USA Inc. NXT4557GUX	Voltage Level	3.3 V	1.62 V	3	Non-Inverted	5 MBd	1.8	1.4	10-XQFN	85 C	-40 ¯C	1.08 V	1.98 V	Unidirectional	10-XFQFN	Surface Mount	1

Catalog

SIM card interface level translator with enable pin

Description

The NXT4557 device is built for interfacing a SIM card with a single low-voltage host side interface. The NXT4557 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. An active HIGH EN pin enables normal operation of the translator. A HIGH to LOW transition on pin EN initiates a shutdown sequence on SIM card pins in accordance with ISO-7816-3.