NVT4557HKX - SIM Card Level Translator, ESD | NXP
N.º de pieza: NVT4557HKX ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $0.48 | $0,48 |
| 10 | $0.44 | $4,40 |
| 100 | $0.41 | $41,00 |
| 500 | $0.39 | $195,00 |
| 1.000 | $0.38 | $380,00 |
NVT4557HKX Descripción general
A level translator (also called a voltage level shifter or voltage translator) is an interface IC that allows digital circuits operating at different supply voltages to communicate reliably. In the power-management and interface hierarchy, the NVT4557 sits between a host microcontroller and a smart card, bridging the voltage gap created by modern low-voltage SoCs that no longer generate the higher SIM card supply rails internally. The device complies with ISO-7816 SIM/smart card interface requirements.
Key features include three dedicated 1.62 V to 3.6 V level translators for data, reset (RSTn), and clock (CLKn) lines, integrated EMI filtering that suppresses radiated and conducted emissions on the SIM lines, and built-in ESD protection that removes the need for external transient-voltage-suppression diodes on the card interface. Because the device provides supply translation without an internal LDO, it simplifies the bill of materials in designs where the card supply is already generated elsewhere.
Technically, the part supports an operating temperature range of -40 C to +85 C, making it suitable for both consumer and industrial embedded designs. The XQFN10 package keeps the footprint minimal for space-constrained mobile, IoT, and M2M hardware. Fast 15 ns transitions support the 10 MHz SIM clocking modes required by modern LTE and 5G modules.
Typical applications include SIM card interfaces in cellular modems, LTE/5G gateways, point-of-sale terminals, telematics units, and IoT devices using eSIM or removable SIM form factors.
When designing with the NVT4557HKX, keep the host supply within the 1.08 V to 1.98 V window and ensure the card-side supply stays within 1.62 V to 3.6 V; place the device close to the SIM connector to maximize the benefit of the integrated EMI filter.
This page synthesizes distributor pricing, lifecycle status, design notes, and selection guidance not found in the manufacturer datasheet alone.
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NVT4557HK
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NVT4557HKX Especificaciones
| Función | SIM card interface level translator |
| Integrated Features | EMI filter and ESD protection |
| Host Side Interface Voltage | 1.08 V to 1.98 V |
| Card Side Translator Voltage | 1.62 V to 3.6 V |
| Number of Level Translators | 3 (data, RSTn, CLKn) |
| Propagation Delay | 15 ns |
| Maximum Data Rate | 10 MHz |
| Interface Standard | ISO-7816 SIM/smart card interface |
| Internal LDO | No (supply translation without LDO) |
| Rango de temperatura de funcionamiento | -40 C to +85 C |
| Encapsulado | XQFN10 |
| Tipo de montaje | Surface Mount |
| Packaging | Reel, 4000 units (Reel 7 Q1/T1 NDP) |
| Estado del ciclo de vida | Active |
| Categoría | Voltage Level Shifters |
Guía de configuración de pines de NVT4557HKX xqfn10
Configuración de pines para NVT4557HKX (encapsulado xqfn10). La numeración de pines, las funciones y los diagramas de conexión se definen en la hoja de datos del fabricante. Consúltela para conocer el footprint exacto y las directrices de soldadura.
No hay datos detallados de patillaje disponibles para NVT4557HKX.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
NVT4557HKX es adecuado para 6 aplicacións: LTE/5G Cellular Modem SIM Interface, Point-of-Sale Terminals, IoT and M2M Gateways, Automotive Telematics Units, Smart Meters with Cellular Connectivity, Consumer Mobile and Wearable Devices.
LTE/5G Cellular Modem SIM Interface
The NVT4557HKX is purpose-built for the SIM card interface of cellular modems, where advanced baseband SoCs run their GPIO banks at 1.08 V to 1.98 V while SIM cards require 1.8 V or 3 V signaling. Its three 1.62 V to 3.6 V translators handle data, RSTn, and CLKn with a 15 ns propagation delay, comfortably supporting the 10 MHz SIM clocking used during high-speed authentication in LTE and 5G networks. The integrated EMI filter helps the design pass conducted and radiated emissions testing near the radio, and the integrated ESD protection covers the user-accessible SIM contacts without external TVS diodes. Placing the device close to the SIM connector minimizes stub lengths and maximizes filter effectiveness.
Recomendado
Point-of-Sale Terminals
Payment terminals expose SIM or SAM card slots to users, making connector-level ESD robustness a hard requirement. The NVT4557HKX integrates ESD protection with its three level translators, removing discrete TVS parts and shrinking the card-reader BOM in the tight mechanical envelope of handheld POS hardware. Its 1.08 V to 1.98 V host-side range matches the low-voltage IO of modern payment SoCs, while the 1.62 V to 3.6 V card side supports both Class B (3 V) and Class C (1.8 V) cards under ISO-7816. The integrated EMI filter reduces clock harmonics that could otherwise couple into the terminal's radio or magstripe front end, easing EMC qualification of the finished product.
Recomendado
IoT and M2M Gateways
Industrial IoT gateways and M2M routers use cellular modules with SIM slots that must survive electrically harsh field environments. The NVT4557HKX operates from -40 C to +85 C ambient, matching the temperature envelope of outdoor and unconditioned enclosures. Its XQFN10 package occupies minimal PCB area next to the SIM holder, and the integrated EMI filter suppresses SIM-line clock emissions that matter in dense multi-radio designs combining LTE, Wi-Fi, and LoRa. Because the part performs supply translation without an internal LDO, designers can reuse an existing 1.8 V or 3 V card rail from the module, reducing solution cost while the translators guarantee correct logic levels on data, RSTn, and CLKn at 10 MHz.
Recomendado
Automotive Telematics Units
Telematics control units (TCUs) contain an emergency-call SIM whose interface must work reliably across the automotive temperature range and survive connector handling during assembly and service. The NVT4557HKX's -40 C to +85 C operating range covers most in-cabin TCU mounting locations, and its integrated ESD protection adds margin at the SIM contact field. With a 15 ns propagation delay and 10 MHz support, it keeps up with modern eUICC (eSIM) profiles that perform frequent certificate operations over the clock line. The EMI filter helps the TCU pass CISPR-class EMC testing by damping SIM clock harmonics near the cellular antenna path, and the tiny XQFN10 footprint fits the dense multilayer stack typical of automotive modules.
Recomendado
Smart Meters with Cellular Connectivity
Smart electricity and gas meters increasingly embed cellular modems for remote reading, requiring a SIM interface that functions for 15+ years in outdoor meter cabinets. The NVT4557HKX provides the voltage bridging between a low-voltage metering SoC (1.08 V to 1.98 V IO) and the SIM card (1.62 V to 3.6 V) with integrated ESD protection that tolerates field handling during meter installation. Its 10 MHz capability supports fast eSIM profile downloads during provisioning, and the EMI filter prevents SIM clock noise from disturbing the metering front end's sensitive analog measurements. The XQFN10 package and lack of external ESD components save board area inside the meter's tightly spaced enclosure.
Recomendado
Consumer Mobile and Wearable Devices
Smartphones, tablets, and cellular wearables use nano-SIM or eSIM interfaces where board area is at an absolute premium. The NVT4557HKX's XQFN10 package fits beside the SIM connector in the thinnest device stacks, and its integration of EMI filtering plus ESD protection eliminates several discrete components per SIM line, a meaningful saving across millions of units. The 1.08 V to 1.98 V host-side range matches the retained-mode low-voltage IO banks of mobile application processors, while 15 ns delay and 10 MHz operation support the fastest ISO-7816 clock modes. The device's low integration complexity also shortens the SI/EMC debug cycle during handset platform bring-up.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para NVT4557HKX — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | NVT4557HK |
|---|---|---|
| Package | XQFN10 | XQFN10 - same |
| Brand | NXP Semiconductors | NXP Semiconductors |
| Host Side Voltage | 1.08 V to 1.98 V | 1.08 V to 1.98 V |
| Card Side Voltage | 1.62 V to 3.6 V | 1.62 V to 3.6 V |
| Translators | 3 (data, RSTn, CLKn) | 3 (data, RSTn, CLKn) |
| Propagation Delay | 15 ns | 15 ns |
| EMI Filter / ESD | Integrated | Integrated |
| Internal LDO | No | No |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C |
Diferenciadores clave
- Integrated EMI filter on SIM lines (frente a NVT4557HK (family baseline; discrete-level-shifter designs))
- Integrated ESD protection at the card interface (frente a Discrete TVS + generic translator solution)
- LDO-free architecture (frente a SIM interface ICs with integrated LDO)
Notas de diseño
Place the NVT4557HKX as close as possible to the SIM card connector so the integrated EMI filter sits directly in the line path. Keep the data, RSTn, and CLKn traces short and matched in length where possible; the 10 MHz SIM clock has harmonics that can radiate if traces become antennas. For the XQFN10 land pattern, follow the NXP datasheet footprint recommendation including the center pad, and verify pin 1 orientation against the datasheet pinning diagram before release.
The NVT4557 performs level translation without an internal LDO, so the card-side supply (1.62 V to 3.6 V) and the host-side supply (1.08 V to 1.98 V) must both be generated elsewhere in the system. Verify supply sequencing at power-up: if the host IO bank is live while the card rail is still ramping, confirm the translator's behavior matches your sequencing assumptions per the NVT4557 datasheet power-up section. Add local 100 nF decoupling on both supply pins.
Do not assume this part generates the SIM supply like some competing SIM interface ICs with integrated LDOs - the NVT4557HKX explicitly translates supply without an LDO, per the Mouser product description. Designers migrating from LDO-integrated translators must add an external card-supply solution. Also confirm that the 15 ns propagation delay fits the ISO-7816 clock timing budget at 10 MHz in your specific module; typical modules accept it, but custom eUICC schemes should be checked.
Información de cumplimiento
Compliance details (RoHS/REACH/lead-free/halogen-free) were not present in the provided verified web data; NXP product page lists Environmental Quality documents for NVT4557HK - consult nxp.com/part/NVT4557HK for official environmental compliance statements.
