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シンボルおよびフットプリント
NVT4556AUK_WLCSP-CAD Symbol and PCB Footprint – BXL File
SIM Card Interface Level Translator with I²C-Bus Control and LDO
- このページには、製造中止（生産終了）となった製品の情報が記載されています。本ページに記載されている仕様および情報は、過去の参考情報です。
NVT4556 device is "Not recommended for new designs", please use the replacement part NVT4557.
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 follower address options.
製品詳細
Features
Key Features
- Support SIM card supply voltages 1.8 V and 3 V
- Input voltage range to LDO: 2.5 V to 5.25 V
- Host microcontroller operating voltage range: 1.55 V to 3.6 V
- VCC input pin provides both host supply voltage and logic level hardware enable/disable pin: source through Host GPIO (ICC<100 μA)
- RST_HOST/EN pin can be programmed as a reset pin or as a device enable/disable pin
- Level translation of I/O, RSTn and CLKn between SIM card and host-side interface with capacitive isolation
- I²C-bus interface for device enable and LDO voltage selection
- Low current shutdown mode < 3 μA
- Supports clock speed beyond 5 MHz clock
- Supports CLK stop mode
- Integrated EMI filters
- Incorporates ISO-7816-3 shutdown feature for the SIM card signals
- ETSI, IMT2000 and ISO-7816 compliant
- ±8 kV IEC61000-4-2 ESD protected on all SIM card contact pins
- Pb-free, Restriction of Hazardous Substances (RoHS) compliant and free of halogen and antimony (Dark Green compliant)
- Available in 12-pin WLCSP package (1.205 mm × 1.605 mm × 0.412 mm, 0.4 mm pitch)