NVT4858UKZ - SD 3.0 Level Translator 104Mbps | NXP
N.º da peça: NVT4858UKZ ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $1.04 | $1,04 |
| 10 | $0.95 | $9,50 |
| 100 | $0.82 | $82,00 |
| 500 | $0.71 | $355,00 |
| 1.000 | $0.64 | $640,00 |
NVT4858UKZ Visão geral
A voltage level translator (also called a level shifter) is an integrated circuit that converts digital signals between two different voltage domains, allowing a low-voltage host controller to communicate safely with peripheral devices that operate at higher signal levels. In the power management and signal-chain hierarchy, level translators sit between the SoC or application processor and external interfaces such as memory card sockets, protecting both sides from over-voltage damage while preserving signal integrity.
Key features of the NVT4858UKZ include full SD 3.0 SDR104 support at 104 Mbps, plus SDR50, DDR50, SDR25 and SDR12 modes, as well as SD 2.0 High-Speed (50 MHz) and Default-Speed (25 MHz) operation. Auto-direction control eliminates the need for a separate DIR pin, simplifying firmware and board design. An auto-enable/disable function tied to the VCCB supply pin reduces system power by placing the translator in a low-power state when the card supply is absent.
The integrated EMI filter suppresses radiated and conducted emissions on the card interface, while the on-chip ESD protection meets IEC 61000-4-2 level 4, giving robust immunity against electrostatic discharge at the externally accessible card socket. The 16-WLCSP (1.84 x 1.87 mm) package minimizes board area, which is critical in smartphones, tablets and other space-constrained portable products. Note that this version ships without an integrated LDO, so card supply generation must be provided separately on the board.
Typical applications include SD, SDIO, miniSD, microSD and SIM card interfaces in mobile phones, tablets, automotive infotainment head units, and industrial data loggers. It also supports SIM card voltage translation using the CLK line and two data lines in SD-plus-SIM combo socket designs.
When designing with the NVT4858UKZ, keep the WLCSP ball-out routing short and impedance-controlled on the high-speed CLK/CMD/DATA lines to preserve SDR104 timing margins at 104 Mbps, and verify that the host-side supply stays within the 1.08 V to 1.95 V range under all load conditions.
This page synthesizes distributor pricing, lifecycle information, and practical design guidance not found in the manufacturer datasheet, as of 2026-10-19.
Alternativas drop-in para NVT4858UKZ — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com NVT4858UKZ (mesmo formato e footprint) — diferindo em Mounting Type, Package.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
NVT4858UK
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
NVT4858UKZ Especificações
| Função | Voltage level translator, bidirectional |
| Circuits | 1 |
| Canais | 6 |
| Max Data Rate | 104 Mbps |
| Host Side Supply (VCCA) | 1.08 V to 1.95 V |
| Card Side Voltage Range | 1.65 V to 3.6 V |
| SD Card Compliance | SD 3.0 SDR104, SDR50, DDR50, SDR25, SDR12; SD 2.0 High-Speed (50 MHz), Default-Speed (25 MHz) |
| Auto Direction Control | Yes (integrated) |
| Auto Enable/Disable | Yes (tied to VCCB supply pin) |
| EMI Filter | Integrated |
| ESD Protection | IEC 61000-4-2 level 4 |
| Integrated LDO | No |
| Encapsulamento | 16-WLCSP (1.84 x 1.87 mm) |
| Tipo de montagem | Surface Mount |
| Supported Interfaces | SD, SDIO, miniSD, microSD, SIM card |
Guia de Configuração de Pinos do NVT4858UKZ 16-wlcsp (1.84 x 1.87 mm)
Configuração de pinos para NVT4858UKZ (pacote 16-wlcsp (1.84 x 1.87 mm)). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para NVT4858UKZ.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
NVT4858UKZ é adequado para 6 aplicaçãos: Smartphone and Tablet SD/microSD Interfaces, Automotive Infotainment SD Card Storage, SIM Card Interfaces in Cellular Terminals, Industrial Data Loggers and HMI Storage, Embedded Linux Single-Board Computers, Point-of-Sale and Payment Terminal Storage.
Smartphone and Tablet SD/microSD Interfaces
In smartphones and tablets, the application processor typically runs its SDIO controller at 1.8 V while removable microSD cards may operate at 1.8 V or 3.3 V depending on card generation. The NVT4858UKZ bridges these domains with six bidirectional channels at up to 104 Mbps (SD 3.0 SDR104), ensuring full UHS-I card performance is preserved through translation. The 1.84 x 1.87 mm 16-WLCSP package fits the tight board area around the card connector, and the auto-direction control removes the need for firmware-managed direction signals. The integrated EMI filter helps the design pass regulatory radiated emissions testing on the externally exposed card bus, while IEC 61000-4-2 level 4 ESD protection guards against card-handling transients without discrete TVS diodes.
Recomendado
Automotive Infotainment SD Card Storage
Automotive head units and telematics control units use SD or microSD cards for map data, media storage and logging. These systems often pair a 1.8 V-class SoC SDIO interface with 3.3 V-capable automotive SD cards, exactly the translation range the NVT4858UKZ covers (host 1.08 V to 1.95 V, card 1.65 V to 3.6 V). SDR104 support at 104 Mbps minimizes media load times, and the integrated EMI filter reduces conducted noise on the card harness, which matters for EMC compliance in the vehicle environment. The auto-enable/disable function tied to VCCB powers the translator down when no card is inserted, reducing quiescent battery drain. Verify the part's specific automotive qualification status with NXP before using it in safety-related positions.
Recomendado
SIM Card Interfaces in Cellular Terminals
Cellular modems, IoT trackers and payment terminals must interface SIM cards that may run at 1.8 V (class B/C) or 3 V/3.3 V (class A), while the baseband controller side often uses a lower-voltage supply. The NVT4858UKZ supports SIM card level translation using the CLK line and two of the data lines, as stated in NXP's product information, making it suitable for SD-plus-SIM combo sockets as well as dedicated SIM interfaces. The IEC 61000-4-2 level 4 ESD protection is essential because SIM card contacts are user-accessible and subject to frequent insertion. The bidirectional auto-direction control handles the half-duplex ISO 7816-style signaling of the SIM interface without a direction pin, simplifying routing in compact RF-adjacent layouts.
Recomendado
Industrial Data Loggers and HMI Storage
Industrial data loggers, PLC HMI panels and gateways commonly archive process data to SD cards. Factory environments expose card sockets to electrostatic discharge from operator handling, so the NVT4858UKZ's on-chip IEC 61000-4-2 level 4 ESD protection is a key reliability feature. The translator spans host rails from 1.08 V to 1.95 V, accommodating modern low-voltage MCUs, while translating to 1.65 V to 3.6 V card levels for legacy SD cards. Full SD 2.0 High-Speed (50 MHz) and SD 3.0 SDR104 support covers both inexpensive industrial-grade cards and faster UHS media. The integrated EMI filter helps meet industrial EMC emission limits on the card bus, and the WLCSP footprint allows placement directly adjacent to the card connector for the shortest stub lengths.
Recomendado
Embedded Linux Single-Board Computers
Embedded Linux boards (gateways, network appliances, kiosk controllers) use microSD as boot and storage media. When the SoC SDMMC controller operates at 1.8 V and the card socket must also accept 3.3 V legacy cards, the NVT4858UKZ provides seamless dual-voltage translation with SDR104 performance so the filesystem runs at full UHS-I speed. The auto-direction control is transparent to the Linux SDHCI driver stack - no software modification is needed. The integrated EMI filter and ESD protection reduce external component count around the socket, and the 1.84 x 1.87 mm WLCSP keeps the translation stage inside the keep-out area near the connector where board space is scarce. The auto-enable function on VCCB ensures no leakage path when the card rail is switched off.
Recomendado
Point-of-Sale and Payment Terminal Storage
Payment terminals and POS devices combine microSD storage expansion with SIM or SAM card slots for security credentials, often in one compact card cage. The NVT4858UKZ addresses both needs: full SD/microSD translation at up to 104 Mbps for transaction logs and application images, and SIM translation using CLK plus two data lines for combo sockets. The IEC 61000-4-2 level 4 ESD protection is critical in retail environments where card contacts are touched constantly. Its 1.84 x 1.87 mm WLCSP allows a single translator instance to be placed between the connector block and the low-voltage security MCU, and the integrated EMI filter assists with FCC/CE emissions compliance on externally accessible card buses. The no-LDO variant lets the designer reuse the terminal's existing card power regulator.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para NVT4858UKZ — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | NVT4858UK |
|---|---|---|
| Package | 16-WLCSP (1.84 x 1.87 mm) | 16-WLCSP (1.84 x 1.87 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors |
| Channels | 6 bidirectional | 6 bidirectional |
| Max Data Rate | 104 Mbps (SDR104) | 104 Mbps (SDR104) |
| Host Supply Range | 1.08 V to 1.95 V | 1.08 V to 1.95 V |
| Card Side Voltage | 1.65 V to 3.6 V | 1.65 V to 3.6 V |
| Integrated LDO | No | No |
| ESD / EMI Features | IEC 61000-4-2 level 4 ESD, integrated EMI filter | IEC 61000-4-2 level 4 ESD, integrated EMI filter |
Principais diferenciais
- Single-chip integration replaces three external parts (vs Discrete translator + CM choke + TVS diode solution)
- Firmware-free direction control (vs DIR-pin translators (typical discrete dual-supply shifters))
- Zero-power card-absent state (vs Always-on discrete level shifters)
Notas de projeto
At SDR104 speeds the CLK line toggles at 104 MHz (208 Mbps DDR-equivalent edge rates). Route the WLCSP balls to the card socket with matched lengths, 40 ohm to 60 ohm source termination, and keep CLK/CMD/DATA stubs under 10 mm where possible. Because the NVT4858UKZ includes the EMI filter, do not add a common-mode choke in series unless EMC testing shows a residual margin problem - extra series inductance eats SDR104 timing margin. Verify eye diagrams at 1.8 V and 3.3 V card rails since translation thresholds shift with VCCB.
This is the no-LDO variant: the card supply (VCCB side) must be generated by a separate regulator. Use a regulator that supports the SD 3.0 voltage-switching sequence (3.3 V to 1.8 V switch for SDR104) and sequence VCCB before or with VCCA within datasheet power-up constraints. The auto-enable/disable function on VCCB means the translator consumes essentially zero system current when the card rail is off - exploit this in battery-powered designs by gating the card supply, but ensure the host does not drive card-side signals while VCCB is absent to avoid parasitic paths.
The 16-WLCSP (1.84 x 1.87 mm) package requires ball-pitch-accurate land pattern per the NXP datasheet package outline; use NSMD pads and follow NXP's WLCSP application note for via-in-pad or dog-bone fanout. Place at least 4 x 0.1 uF plus 1 uF ceramic decoupling on both VCCA and VCCB within 2 mm of the balls. The integrated ESD structures sink IEC 61000-4-2 level 4 surges, so provide a solid low-impedance ground return under the part - avoid splitting ground planes beneath the translator.
Informações de conformidade
The Z suffix in the NXP ordering code conventionally denotes RoHS-compliant/lead-free packaging, but explicit RoHS/REACH compliance statements were not present in the verified web data provided; confirm on the NXP product page before compliance-critical use.
