My Inquiry
My Account
Nexperia USA Inc. NXT4558GUX
- Part No.:
- NXT4558GUX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
NXT4558GUX.pdf
- Description:
- NXT4558GU/SOT1160/XQFN10
- Quantity:
- Payment:
- Shipping:
Inventory:3,999
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NXT4558GUX from Nexperia is a dedicated SIM card interface level translator with enable control, designed to bridge voltage-domain mismatch between low-voltage host microcontrollers (1.08 V–1.98 V) and SIM cards (1.62 V–3.3 V). It provides three independent level-shifted channels (I/O, RST, CLK), supports ISO-7816-3-compliant shutdown sequencing, and operates up to 25 MHz clock frequency in push-pull mode - enabling use in Class-B/C SIM applications including eSIM-enabled mobile handsets and wireless modems.
For engineers reviewing the NXT4558GUX datasheet, NXT4558GUX pinout, NXT4558GUX application, or NXT4558GUX equivalent, key selection considerations include its integrated EMI filters on all SIM-side outputs, <1 μA shutdown current, UVLO_AC-triggered automatic shutdown at ~86% VCC_SIM, and built-in pull-up/pull-down resistors eliminating external components for I/O, RST, and CLK lines.
Technical Context
The NXT4558GUX implements a bidirectional I/O channel using active PMOS one-shot acceleration for fast LOW-to-HIGH transitions and passive pull-up termination, eliminating direction-control pins. Its RST and CLK channels are unidirectional high-speed translators from host to SIM side, each incorporating series resistance (44 Ω) and EMI filtering.
Shutdown is initiated by either EN pin transition LOW or VCC_SIM falling below Vdis(UVLO_AC) (~1.55 V at 1.8 V supply), triggering a deterministic 4 μs sequence: RST_SIM pulled LOW first, then CLK_SIM, then IO_SIM - all via internal 400 Ω pull-downs per ISO-7816-3. The device uses AC-coupled UVLO detection optimized for typical SIM power-rail slew rates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC_HOST Range | 1.08 V to 1.98 V - defines minimum host logic compatibility with modern ultra-low-voltage SoCs and APUs. |
| VCC_SIM Range | 1.62 V to 3.3 V - supports legacy 3 V, dual-voltage 1.8/3 V, and modern 1.8 V SIM/eSIM standards. |
| fclock (CLK channel) | Up to 25 MHz - enables full-speed operation with Class-C SIM cards requiring >5 MHz clocks. |
| IO data rate | 2.5 Mbps (push-pull), 800 kbps (open-drain) - matches standard SIM I/O timing requirements under both drive modes. |
| Shutdown current | <1 μA - ensures negligible battery drain during SIM hot-swap or standby in portable devices. |
| Vdis(UVLO_AC) | ~0.86 × VCC_SIM - high-threshold AC UVLO enables rapid, slope-sensitive shutdown when SIM supply collapses. |
| ESD rating (SIM pins) | ±8 kV contact / ±15 kV air (IEC61000-4-2 Level 4) - meets stringent mobile handset ESD immunity requirements. |
| Package | XQFN10 (SOT1160-1), 1.4 mm × 1.8 mm × 0.5 mm - ultra-compact footprint for space-constrained SIM socket layouts. |
Pinout & Package
XQFN10 package (SOT1160-1), 1.40 mm × 1.80 mm × 0.50 mm body, no leads, wettable flanks, pin 1 index in lower-left corner beneath marking code "z8".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RST_HOST | Input | Host-side reset signal input; translated to RST_SIM with 12 ns typical propagation delay. |
| 2 - CLK_HOST | Input | Host-side clock input; drives CLK_SIM with 12 ns tpd and <2 ns skew vs. IO_SIM for timing-critical protocols. |
| 3 - IO_HOST | I/O | Bidirectional host data line; supports push-pull and open-drain drivers; includes internal 4.3 kΩ pull-up. |
| 4 - VCC_SIM | Power | SIM-side supply rail (1.62–3.3 V); requires local 0.1 μF ceramic decoupling; triggers UVLO_AC shutdown. |
| 5 - IO_SIM | I/O | Bidirectional SIM data line; open-drain only on SIM side; includes 5.3 kΩ pull-up and 400 Ω pull-down in shutdown. |
| 6 - CLK_SIM | Output | SIM-side clock output; EMI-filtered (44 Ω series + capacitance suppression) for RF-sensitive mobile environments. |
| 7 - RST_SIM | Output | SIM-side reset output; first signal pulled LOW in ISO-7816-3 shutdown sequence (Δt = 4 μs typ). |
| 8 - GND | Ground | Common reference for both domains; critical for ESD performance and noise isolation between host/SIM sections. |
| 9 - VCC_HOST | Power | Host-side supply rail (1.08–1.98 V); requires local 0.1 μF ceramic decoupling; powers all host-facing circuitry. |
| 10 - EN | Input | Active-HIGH enable; initiates full ISO-7816-3 shutdown when driven LOW; also used for power sequencing control. |
Key Features
| Feature | Design Value |
|---|---|
| ISO-7816-3 shutdown compliance | Deterministic 4 μs RST→CLK→IO shutdown sequence with internal 400 Ω pull-downs eliminates need for external control logic. |
| Integrated EMI filtering | 44 Ω series resistance + RC filtering on all SIM-side outputs (CLK_SIM, RST_SIM, IO_SIM) reduces harmonic emissions into cellular RF bands. |
| Automatic bidirectional I/O direction sensing | No direction-control pin required; internal one-shot PMOS acceleration detects first falling edge to determine data flow direction dynamically. |
| UVLO_AC detection | High-threshold (~86% VCC_SIM), slew-rate-dependent disable prevents false shutdown during normal VCC_SIM ripple or transient dips. |
| Zero-external-component interface | Built-in 2.8–6 kΩ pull-ups on host/SIM I/O and 400 Ω pull-downs on SIM outputs remove requirement for discrete resistors or capacitors. |
| Robust SIM-side ESD protection | ±8 kV contact / ±15 kV air per IEC61000-4-2 Level 4 on all SIM pins - exceeds ETSI EN 300 328 requirements for mobile terminals. |
Applications
| Mobile Handset SIM Interface | eSIM Integration Module |
|---|---|
|
Use Scenario: Interfacing an application processor operating at 1.2 V with a 1.8 V eSIM in a slim smartphone design. IC Role / Device Role / Timing Role: Voltage-level translator and ISO-7816-3-compliant shutdown controller for secure, hot-swappable eSIM activation/deactivation. Use Value: Enables direct connection without level-shifting discretes; <1 μA shutdown current extends battery life during eSIM standby; 25 MHz clock support ensures full protocol compliance. |
Use Scenario: Integrating embedded SIM functionality into a compact IoT modem module with tight PCB area constraints. IC Role / Device Role / Timing Role: Single-chip SIM interface bridge between 1.8 V host MCU and 3.0 V legacy SIM, including EMI-suppressed clock/data paths. Use Value: XQFN10 footprint saves >40% board area vs. discrete solutions; integrated EMI filters eliminate need for external ferrites; RoHS/Dark Green compliance meets global regulatory requirements. |
| Wireless LTE Modem | Industrial M2M Terminal |
|
Use Scenario: Enabling SIM hot-swap capability in a ruggedized LTE Cat-M1 modem used in fleet tracking hardware. IC Role / Device Role / Timing Role: Fault-tolerant SIM interface with automatic shutdown sequencing to prevent data corruption during live SIM insertion/removal. Use Value: ISO-7816-3 shutdown prevents SIM latch-up or memory corruption; ±15 kV air-gap ESD withstand protects against field-handling events; -40 °C to +85 °C rating ensures reliability in vehicle cabins. |
Use Scenario: Providing SIM connectivity in an industrial gateway that must operate continuously across wide temperature swings and electrical noise. IC Role / Device Role / Timing Role: Robust, low-power SIM translator with UVLO_AC monitoring to detect failing SIM supply before system-level faults occur. Use Value: Vdis(UVLO_AC) threshold tracks VCC_SIM decay slope, enabling predictive shutdown before brownout-induced communication errors; latch-up immunity >100 mA ensures resilience in noisy factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SIM interface level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX14430ETA+ | Single-supply (2.7–5.5 V), no separate VCC_HOST/VCC_SIM rails; lacks ISO-7816-3 shutdown sequencing. | Requires external MOSFETs and timing logic to emulate shutdown; not suitable for certified SIM hot-swap designs. | Select only if host/SIM share compatible voltage domain and ISO compliance is not required. |
| TXS0108E | Octal bidirectional translator; no SIM-specific EMI filtering, UVLO_AC, or integrated shutdown logic. | Needs external circuitry for RST/CLK direction control and SIM-side pull-down activation; fails ISO-7816-3 timing. | Use only for generic level shifting where SIM certification, ESD robustness, and power sequencing are non-critical. |
Compared with MAX14430ETA+ and TXS0108E, the NXT4558GUX uniquely integrates ISO-7816-3 shutdown, SIM-optimized EMI filtering, and dual-rail UVLO_AC detection - making it the only drop-in solution for certified, low-power, hot-swap-capable SIM interfaces in mobile and M2M platforms.
Availability
NXT4558GUX is available at Aetrix Electronics and suitable for mobile handset design, eSIM integration modules, and LTE modem development requiring stable component supply, long-term lifecycle assurance, and full ISO/ETSI compliance.
Supply support for NXT4558GUX includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert delivering high-performance, reliable, and energy-efficient components for automotive, industrial, computing, consumer, and communications markets.
The NXT4558GUX belongs to Nexperia's SIM interface solutions product line, engineered specifically for secure, low-power, standards-compliant SIM/eSIM connectivity in space-constrained portable and wireless devices.
FAQ
What is the purpose of the EN pin on the NXT4558GUX?
The EN pin is an active-HIGH enable input that controls normal operation and initiates ISO-7816-3-compliant shutdown. When driven HIGH, the device translates signals between host and SIM sides. When driven LOW, it triggers a deterministic 4 μs shutdown sequence pulling RST_SIM, CLK_SIM, and IO_SIM LOW via internal 400 Ω resistors - ensuring safe SIM deactivation without external logic.
Does the NXT4558GUX require external pull-up or pull-down resistors?
No. The NXT4558GUX integrates 2.8–6 kΩ pull-up resistors on both IO_HOST and IO_SIM, and 400 Ω pull-down resistors on RST_SIM, CLK_SIM, and IO_SIM activated during shutdown. These eliminate all external passive components required for basic SIM interface operation, reducing BOM count and PCB area.
How does the NXT4558GUX handle ESD events on SIM-side pins?
The device provides IEC61000-4-2 Level 4 ESD protection: ±8 kV contact discharge and ±15 kV air discharge on all SIM-side pins (IO_SIM, CLK_SIM, RST_SIM). Its architecture routes ESD current to ground without stressing the host side, and latch-up immunity exceeds 100 mA per JESD78 Class II Level B - meeting stringent mobile terminal requirements.
Can the NXT4558GUX support both 1.8 V and 3.0 V SIM cards?
Yes. The device supports VCC_SIM from 1.62 V to 3.3 V, covering 1.8 V eSIMs, dual-voltage 1.8/3.0 V SIMs, and legacy 3.0 V cards. Its level-shifting thresholds scale with supply voltages (e.g., VIH = 0.5×VCC_SIM), and UVLO_AC detection adapts to VCC_SIM levels - ensuring correct operation across the full SIM voltage range without configuration changes.
NXT4558GUX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 3
- Voltage - VCCA:
- 1.08 V ~ 1.98 V
- Voltage - VCCB:
- 1.62 V ~ 3.3 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Open Drain, Push-Pull
- Data Rate:
- 2.5Mbps
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-XFQFN
NXT4558GUX FAQ
1.How can I place an order for NXT4558GUX through Aetrix?
Please submit a Request for Quotation (RFQ) for NXT4558GUX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for NXT4558GUX reliable?
The price and inventory of NXT4558GUX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NXT4558GUX is usually 5 days.
3.What payment methods are accepted for NXT4558GUX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NXT4558GUX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NXT4558GUX?
NXT4558GUX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NXT4558GUX order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for NXT4558GUX?
For technical support, including NXT4558GUX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NXT4558GUX requirements.
6.How does Aetrix verify that NXT4558GUX is sourced from the original manufacturer or authorized distributors?
All NXT4558GUX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that NXT4558GUX meets industry standards.
7.What is the process for return or replacement of NXT4558GUX?
All NXT4558GUX units undergo pre-shipment inspection (PSI). If there is an issue with NXT4558GUX, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The NXT4558GUX part is unused and in its original packaging.
Return procedure for NXT4558GUX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NXT4558GUX Tags
-
74LVC1T45GW,125
Nexperia USA Inc.
-
74LVCH2T45DC,125
Nexperia USA Inc.
-
SN74LVC1T45DBVR
Texas Instruments
-
SN74LVC1T45DRLR
Texas Instruments
-
SN74LVC1T45DPKR
Texas Instruments
-
SN74LVC2T45DCTR
Texas Instruments
-
74LVC2T45GT,115
Nexperia USA Inc.
-
SN74LVC1T45YZPR
Texas Instruments
-
LSF0102DCUR
Texas Instruments
-
SN74LVC1T45DCKR
Texas Instruments
-
TXS0102DCTR
Texas Instruments
-
FXLP34P5X
onsemi
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
