NVT4858-4557-EVB - SD/SIM Level Shifter Eval Board | NXP
Teilenummer: NVT4858-4557-EVB ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
NVT4858-4557-EVB Übersicht
A voltage level translator is an interface IC that safely bridges digital signals between circuits operating at different supply voltages - for example a 1.8 V microcontroller SDIO port and a 3.3 V SD card. Within the signal-chain hierarchy, level translators sit in the interface IC family alongside buffers and repeaters, and are essential wherever mixed-voltage memory cards or smart cards interface to lower-voltage SoCs.
Key features of the evaluation platform include: the NVT4858 supporting SD 3.0 SDR104, SDR50, DDR50, SDR25 and SDR12 modes plus SD 2.0 High-Speed (50 MHz) and Default-Speed (25 MHz) modes; the NVT4557 being compliant with all ETSI, IMT-2000 and ISO-7816 SIM/smart-card interface requirements; and the NVT4858 device itself providing an integrated EMI filter and ESD protection. These integrated protection features reduce external component count in the final product design.
Technically, the NVT4858 is a dual-voltage level translator dedicated to SD, SDIO, mini SD, micro SD and SIM card interfaces. Its integrated EMI filtering suppresses radiated emissions on the high-speed card clock and data lines, while the ESD protection structure guards the card-side pins against electrostatic discharge events during card insertion - a common field-failure source. The companion NVT4557 handles the ISO-7816 smart-card signaling chain.
Typical evaluation use cases include prototyping SD/SDIO host controllers in embedded Linux or MCU designs, validating SIM card interfaces for LTE, IoT and POS terminals, and benchmarking signal integrity on the card clock/data lines before committing to a PCB layout.
A key design consideration: NXP notes that NVT4858 is not a drop-in replacement for the older NVT4857 - both hardware and software modifications may be required when migrating, so engineers should review the NVT4858 datasheet and application note AN13158 for layout guidelines.
This page synthesizes distributor availability, the official NXP user manual (UM11582), application note references, and practical design notes not found on the manufacturer product page alone.
Drop-in-Alternativen für NVT4858-4557-EVB – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit NVT4858-4557-EVB (gleiche Bauform und Footprint) – abweichend in Companion User Manual.
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NVT4557-4557-EVB
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NVT4858-4557-EVB Spezifikationen (herstellerveröffentlicht)
| Product Type | Level Shifter Interface Evaluation Board |
| Mounted Devices | NVT4858 and NVT4557 |
| Target Interfaces | SD, SDIO, mini SD, micro SD, SIM card |
| SD Modes Supported (NVT4858) | SD 3.0 SDR104, SDR50, DDR50, SDR25, SDR12; SD 2.0 High-Speed 50 MHz and Default-Speed 25 MHz |
| SIM Interface Compliance (NVT4557) | ETSI, IMT-2000, ISO-7816 |
| EMI Filter | Integrated (NVT4858) |
| ESD Protection | Integrated (NVT4858) |
| On-board Connectors | Input and output headers, SD card socket, SIM card socket |
| Manufacturer | NXP Semiconductors |
| Product Category | Development Boards, Kits & Programmers |
| Companion User Manual | NXP UM11582 |
| Related Layout Guide | NXP AN13158 (SD/SIM level translator PCB layout) |
NVT4858-4557-EVB Schnittstellen & Anschlüsse
Für NVT4858-4557-EVB ist keine vom Hersteller veröffentlichte Schnittstellenliste verfügbar. Details zu Anschlüssen und Headern finden Sie in der Herstellerdokumentation.
Siehe die Herstellerdokumentation für die vollständige Pinbelegung der Erweiterungsleiste und die Nummerierung der Steckverbinder-Pins.
Typische Anwendungen
NVT4858-4557-EVB ist geeignet für 6 Anwendungs: Embedded SD/SDIO Host Controller Development, SIM Card Interface Prototyping for Cellular Terminals, Payment and POS Terminal Development, Signal Integrity and EMI Pre-compliance Testing, Automotive Infotainment SD Card Interface Evaluation, IoT Device prototyping with Removable Storage and SIM.
Embedded SD/SDIO Host Controller Development
Engineers developing SD/SDIO host controllers for embedded Linux or MCU platforms use the NVT4858-4557-EVB to validate signaling between a 1.8 V/3.3 V host SDIO port and the card. The NVT4858 supports SD 3.0 SDR104, SDR50, DDR50, SDR25 and SDR12 plus SD 2.0 High-Speed (50 MHz) and Default-Speed (25 MHz) modes, so the whole speed ladder can be exercised on one board. Its integrated EMI filter and ESD protection mirror the protection needed in the final product, making evaluation results representative. The on-board SD socket and headers allow direct wiring to any host platform without custom PCBs, dramatically shortening bring-up time.
Empfohlen
SIM Card Interface Prototyping for Cellular Terminals
The NVT4557 mounted on this board is compliant with all ETSI, IMT-2000 and ISO-7816 SIM/smart-card interface requirements, making the board a natural fit for prototyping SIM interfaces of LTE, NB-IoT and 5G modules. The dedicated SIM socket and level-shifting headers let engineers connect a cellular module's USIM interface directly and verify clock, reset and I/O signaling at correct voltage levels. ISO-7816 compliance ensures the evaluation matches the electrical requirements mandated for mobile-terminal SIM interfaces. Using the evaluation board avoids layout mistakes at the prototyping stage that would otherwise appear as intermittent card-detection failures in production hardware.
Empfohlen
Payment and POS Terminal Development
POS and payment terminals combine a smart-card reader (ISO-7816) with removable storage, exactly the two signal chains this board integrates. The NVT4557 handles the ISO-7816/ETSI-compliant smart-card side while the NVT4858 supports the SD-side translator with integrated EMI filter and ESD protection - both mandated features for payment hardware facing insertion events and electromagnetic compatibility testing. Evaluating both interfaces on one board lets payment developers confirm voltage translation, card-detection behavior and ESD robustness before committing to a custom PCB, and the AN13158 layout note guides the transition from evaluation board to production layout.
Empfohlen
Signal Integrity and EMI Pre-compliance Testing
Because the NVT4858 integrates an EMI filter on the high-speed card lines, this board is a useful vehicle for pre-compliance probing of SD clock and data emissions before formal EMC testing. The NXP layout guideline application note AN13158 details PCB layout rules for High Speed SD and SIM applications to minimize signal integrity issues - short matched traces, solid ground reference, and translator placement near the socket. Engineers can scope the board's header signals at SDR104 rates to measure eye margins and ringing, then apply the same filter-and-translate topology in the end design with confidence in its emissions behavior.
Empfohlen
Automotive Infotainment SD Card Interface Evaluation
Automotive head units and telematics control units commonly use SD cards for map and media storage, and many are built on NXP MCUs. This board lets automotive engineers validate level translation between a low-voltage SDHC/SDXC host and 3.3 V cards across the full SD 3.0 mode set (SDR104 through SDR12) before integrating the NVT4858 device into the production schematic. The integrated ESD protection addresses the card-insertion robustness requirements typical of consumer-accessible slots in vehicles, and the EMI filter helps meet the strict emissions limits of the vehicle environment.
Empfohlen
IoT Device prototyping with Removable Storage and SIM
IoT gateways and trackers frequently need both a SIM (for cellular identity) and a micro SD card (for local logging). The NVT4858-4557-EVB is one of the few boards evaluating both chains simultaneously: the NVT4557 covers the ISO-7816/ETSI SIM interface while the NVT4858 covers SD, SDIO, mini SD and micro SD translation. Engineers wiring the board headers to an IoT SoC can verify that both card interfaces work at the SoC's I/O voltage without building custom hardware, then reuse the NVT4858's integrated EMI filter and ESD protection topology directly in the production design.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für NVT4858-4557-EVB – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | NVT4557-4557-EVB |
|---|---|---|
| Package | Evaluation board | Evaluation board - same form factor |
| Brand | NXP Semiconductors | NXP Semiconductors |
| Mounted SIM Translator | NVT4557 | NVT4557 |
Wichtigste Unterscheidungsmerkmale
- Dual-SD+SIM evaluation on a single board (vs. NVT4557-4557-EVB)
- Integrated EMI filter and ESD protection on the device under test (vs. Generic discrete level-shifter test setups)
- Trade-off: board-level product, not an IC (vs. NVT4858UKAZ (IC only))
Designhinweise
When migrating from this evaluation board to a production PCB, follow NXP AN13158 ('NVT4557/NVT4558/NVT4858 voltage-level translator layout guidelines'). It details layout rules for High Speed SD and Smart Card (SIM) applications specifically to minimize signal integrity issues. Keep the SD clock trace as short as possible, route CLK/CMD/DAT over an unbroken ground plane, and place the translator close to the card socket. At SDR104 (up to ~104 MB/s) rates, stubs and via transitions on the clock line are the dominant causes of eye closure and CRC errors.
Do not assume the NVT4858 is a drop-in upgrade from the NVT4857: per an official NXP Community response (July 2026), both hardware and software modifications may be required when replacing NVT4857UKAZ with NVT4858. Review pin mapping, control-pin polarity, and any host-driver register differences before committing. On the evaluation board itself, verify that the host-side I/O voltage jumper/header setting matches your MCU's SDIO bank voltage before first power-up to avoid overstressing either side of the translator.
Estimate: the NVT4858's integrated EMI filter and ESD structures add small series and clamping elements on each card line; at SD 2.0 High-Speed (50 MHz) signaling this contributes modest additional capacitive loading compared with an unfiltered translator. When reproducing the evaluation-board topology in production, budget for the filter's line capacitance in your trace impedance calculations and confirm the card-side supply sequencing in the NVT4858 datasheet so the translator output stage is never back-powered through the ESD clamp diodes before VDD is applied.
Compliance-Informationen
Compliance status not stated in the retrieved distributor or NXP data. Confirm on the official NXP product page before procurement documentation is issued.