My Inquiry
My Account
Nexperia USA Inc. LSF0101GMX
- Part No.:
- LSF0101GMX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
LSF0101GMX.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 6XSON
- Quantity:
- Payment:
- Shipping:
Inventory:890
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LSF0101GMX from Nexperia is a 1-bit bidirectional multi-voltage level translator supporting open-drain and push-pull interfaces, with no direction pin required, ≤100 MHz up-translation and ≥100 MHz down-translation at ≤30 pF load, 5 V-tolerant I/O pins, and operation from −40 °C to +125 °C - used for I²C, SMBus, and GPIO voltage translation between 0.95 V–5.0 V domains.
For engineers reviewing the LSF0101GMX datasheet, LSF0101GMX pinout, LSF0101GMX application, or LSF0101GMX equivalent, this page delivers verified pin functions, real-world timing performance at defined capacitive loads, voltage translation pairings (e.g., 1.8 V ↔ 3.3 V), and validated alternatives for system-level interoperability in telecom and industrial control designs.
Technical Context
The LSF0101GMX implements passive FET-based bidirectional translation without internal level-shifting circuitry or direction control logic, enabling automatic signal flow reversal based on relative voltage levels at A1 and B1. Its EN pin enables high-impedance isolation of both data paths when deasserted.
It supports asymmetric voltage translation across five standard pairs (e.g., 1.2 V ↔ 5.0 V, 2.5 V ↔ 3.3 V) with ON-resistance as low as 3 Ω at 1.8 V reference and ≤1.3 ns typical propagation delay (CL = 50 pF, VrefA = 1.5 V), making it suitable for high-speed, low-distortion inter-domain signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 1 bidirectional channel - translates signals between two independent voltage domains without external direction control. |
| Up-translation speed | ≤100 MHz at CL = 30 pF - supports fast rising-edge translation from lower to higher voltage rail (e.g., 1.8 V → 3.3 V). |
| Down-translation speed | ≥100 MHz at CL = 30 pF - maintains integrity of falling-edge translation from higher to lower voltage rail (e.g., 3.3 V → 1.8 V). |
| Voltage range pairs | 0.95 V/1.2 V/1.8 V/2.5 V/3.3 V ↔ 1.8 V/2.5 V/3.3 V/5.0 V - enables flexible rail-to-rail mapping without redesign. |
| ON-resistance (RON) | 3 Ω typical at VrefA = 2.5 V - minimizes voltage drop and signal distortion during active translation. |
| ESD protection | HBM >2000 V, CDM >1000 V - ensures robustness against handling and board-level electrostatic discharge events. |
| Operating temperature | −40 °C to +125 °C - qualified for extended industrial and telecom infrastructure environments. |
Pinout & Package
XSON6 plastic extremely thin small outline package (SOT886); 6-terminal, leadless, 1.0 × 1.45 × 0.5 mm body; thermal pad optional; moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | 0 V return path for all internal circuitry and signal references; must be low-impedance connection. |
| refA | Reference voltage A | Defines low-side voltage domain (e.g., 1.8 V) for channel A1; sets threshold and bias for FET conduction. |
| A1 | Data I/O A | Bidirectional signal terminal tied to refA domain; automatically follows voltage state of B1 when enabled. |
| refB | Reference voltage B | Defines high-side voltage domain (e.g., 3.3 V) for channel B1; independent of refA for asymmetric translation. |
| B1 | Data I/O B | Bidirectional signal terminal tied to refB domain; mirrors A1 state via passive FET coupling when EN = HIGH. |
| EN | Enable input | Active-HIGH control: drives A1/B1 into high-impedance state when LOW, isolating both sides completely. |
Key Features
| Feature | Design Value |
|---|---|
| No direction pin | Eliminates PCB routing complexity and firmware overhead for bidirectional protocols like I²C and SMBus. |
| Flow-through pinout | Enables straight trace routing between A1 and B1 pads, minimizing stub length and signal integrity degradation. |
| 5 V-tolerant I/O | Allows direct interface with legacy TTL or 5 V microcontrollers without external clamping or resistors. |
| Hot insertion support | Prevents bus contention and latch-up during live board insertion by maintaining high-Z state until powered and enabled. |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level A - ensures reliability in noisy industrial power environments. |
Applications
| I²C Bus Translation | SMBus Interface Bridging |
|---|---|
|
Use Scenario: Interfacing a 1.8 V sensor node with a 3.3 V host controller over shared I²C bus lines. IC Role / Device Role / Timing Role: Bidirectional level shifter for SDA/SCL lines, preserving open-drain topology and timing compliance. Use Value: Maintains <1.3 ns propagation delay at 50 pF load while supporting 100 kHz–1 MHz I²C clock rates without pull-up resistor recalculations. |
Use Scenario: Connecting 2.5 V PMBus-compliant power management ICs to a 5 V baseboard management controller. IC Role / Device Role / Timing Role: Voltage domain translator for SMBus ALERT# and clock/data lines, ensuring protocol-level compatibility. Use Value: Enables full SMBus 2.0 timing compliance (tBUF, tHD:STA) across voltage domains without added logic or timing margin loss. |
| GPIO Signal Translation | MDIO Link Interface |
|
Use Scenario: Routing GPIOs from a 0.95 V FPGA I/O bank to 3.3 V peripheral logic in telecom line cards. IC Role / Device Role / Timing Role: Single-channel bidirectional translator for general-purpose digital control and status signals. Use Value: Delivers sub-nanosecond edge fidelity and <5 μA leakage, preventing false triggering in low-power standby modes. |
Use Scenario: Isolating MDIO management interface between a 1.2 V Ethernet PHY and 2.5 V MAC layer in switch ASIC designs. IC Role / Device Role / Timing Role: Level translator for bi-directional MDIO clock (MDC) and data (MDIO) lines per IEEE 802.3 clause 22. Use Value: Supports MDIO's 2.5 MHz maximum clock rate with guaranteed setup/hold margins due to matched tPLH/tPHL propagation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0101DSER | Active push-pull driver architecture; requires external pull-ups; 1.65–5.5 V I/O range; 30 MHz max speed. | Less suitable for open-drain buses (I²C/SMBus) due to driven outputs; better for push-pull GPIOs with strict drive strength needs. | Select when precise output drive control is required and open-drain emulation is unnecessary. |
| PCA9306DCUR | Passive FET design like LSF0101; dual-channel; 1.2–3.3 V / 1.8–5.5 V translation; 400 kHz I²C-optimized. | Limited to ≤400 kHz I²C; lacks EN pin; not rated for >100 MHz translation or 125 °C operation. | Choose for cost-sensitive, dual-channel, lower-speed I²C systems where extended temperature range is not critical. |
Compared with TXS0101DSER and PCA9306DCUR, the LSF0101GMX uniquely combines 100+ MHz translation bandwidth, integrated enable control, 5 V tolerance, and full industrial temperature rating - making it optimal for high-speed, thermally demanding, and protocol-critical applications.
Availability
LSF0101GMX is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and personal computing applications requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across temperature extremes.
Supply support for LSF0101GMX 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 focused on essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The LSF0101GMX belongs to Nexperia's level translation portfolio, engineered specifically for seamless interoperability between mixed-voltage digital subsystems in space-constrained, high-reliability applications.
FAQ
Does LSF0101GMX require external pull-up resistors on A1 or B1 lines?
Yes - external pull-up resistors are required on both A1 and B1 lines to establish valid HIGH logic levels in open-drain configurations. The device itself contains no internal pull-ups; resistor values depend on bus capacitance and speed requirements, typically 1–10 kΩ per side.
Can LSF0101GMX translate between 1.0 V and 5.0 V rails?
Yes - the datasheet explicitly lists 0.95 V ↔ 5.0 V and 1.2 V ↔ 5.0 V as supported translation pairs. At 1.0 V refA, RON is 7 Ω (typical), enabling functional translation, though timing margins reduce slightly versus higher reference voltages.
What happens to A1 and B1 when EN is driven LOW?
When EN = LOW, both A1 and B1 enter high-impedance (Z) state, electrically isolating the two voltage domains. This prevents back-driving, allows hot-plug operation, and eliminates static current paths between refA and refB supplies.
Is LSF0101GMX pin-compatible with LSF0101GW or LSF0101GX?
No - although functionally identical, the packages differ: LSF0101GW uses TSSOP6 (6-lead), LSF0101GMX uses XSON6 (6-terminal leadless), and LSF0101GX uses X2SON6 (smaller 1.0 × 0.8 mm). Footprints and solder reflow profiles are not interchangeable.
LSF0101GMX 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:
- 1
- Voltage - VCCA:
- 0.95 V ~ 5 V
- Voltage - VCCB:
- 0.95 V ~ 5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Open Drain, Push-Pull
- Data Rate:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-XFDFN
LSF0101GMX FAQ
1.How can I place an order for LSF0101GMX through Aetrix?
Please submit a Request for Quotation (RFQ) for LSF0101GMX 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 LSF0101GMX reliable?
The price and inventory of LSF0101GMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LSF0101GMX is usually 5 days.
3.What payment methods are accepted for LSF0101GMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LSF0101GMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LSF0101GMX?
LSF0101GMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LSF0101GMX 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 LSF0101GMX?
For technical support, including LSF0101GMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LSF0101GMX requirements.
6.How does Aetrix verify that LSF0101GMX is sourced from the original manufacturer or authorized distributors?
All LSF0101GMX 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 LSF0101GMX meets industry standards.
7.What is the process for return or replacement of LSF0101GMX?
All LSF0101GMX units undergo pre-shipment inspection (PSI). If there is an issue with LSF0101GMX, 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 LSF0101GMX part is unused and in its original packaging.
Return procedure for LSF0101GMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LSF0101GMX 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…
