My Inquiry
My Account
Nexperia USA Inc. LSF0102GXX
- Part No.:
- LSF0102GXX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
LSF0102GXX.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 8X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:5,474
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LSF0102GXX from Nexperia is a 2-channel bidirectional multi-voltage level translator supporting open-drain and push-pull interfaces, with up-translation ≤100 MHz and down-translation ≥100 MHz at ≤30 pF load, 5 V-tolerant I/O pins, and no direction pin required - deployed in I²C, SMBus, and GPIO voltage domain bridging between 0.95 V–5.0 V logic domains.
For engineers reviewing the LSF0102GXX datasheet, LSF0102GXX pinout, LSF0102GXX application, or LSF0102GXX equivalent, this page delivers verified pin functions, real-world translation performance across voltage pairs (e.g., 1.8 V ↔ 3.3 V), thermal operation to +125 °C, ESD robustness (HBM >2000 V), and flow-through PCB routing advantages.
Technical Context
The LSF0102GXX implements passive MOSFET-based bidirectional translation without internal level-shifting circuitry, enabling automatic signal direction detection via external pull-up resistors on A/B sides. Its reference voltage pins (refA, refB) independently set translation thresholds per channel.
It operates across five defined voltage pairings - including 0.95 V ↔ 1.8 V, 1.8 V ↔ 3.3 V, and 3.3 V ↔ 5.0 V - with ON-resistance as low as 3 Ω (typ.) at 1.8 V/3.3 V and propagation delays under 0.4 ns (tPLH/tPHL, CL = 15 pF) for high-speed interface bridging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 2 independent bidirectional data paths (A1/B1 and A2/B2) |
| Up-translation speed | ≤100 MHz at CL ≤30 pF - supports fast I²C Fast-mode Plus (1 Mbit/s) and PMBus timing |
| Down-translation speed | ≥100 MHz at CL ≤30 pF - enables reliable high-speed signal return from higher-voltage domains |
| Voltage pairing flexibility | Five fixed combinations: e.g., 0.95 V ↔ 1.8 V, 1.8 V ↔ 3.3 V, 3.3 V ↔ 5.0 V - no reconfiguration needed per use case |
| ON-resistance (RON) | 3 Ω (typ.) at VrefA = 2.5 V - minimizes voltage drop and signal distortion in push-pull mode |
| ESD protection | HBM >2000 V, CDM >1000 V - ensures robustness during board handling and system integration |
| Operating temperature | −40 °C to +125 °C - qualified for industrial and telecom infrastructure environments |
Pinout & Package
X2SON8 package: plastic thermal-enhanced extremely thin small outline, 8-terminal, no leads, body size 1.35 × 0.8 × 0.32 mm (SOT1233-2), optimized for high-density PCB layouts and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Common 0 V return path for all internal circuitry and signal references |
| EN | Enable input (active HIGH) | Assert HIGH to activate translation; LOW places A/B pins in high-impedance state for hot insertion |
| refA | Reference voltage A | Sets lower-voltage domain threshold (e.g., 1.8 V) for channel A-side translation |
| refB | Reference voltage B | Sets higher-voltage domain threshold (e.g., 3.3 V) for channel B-side translation |
| A1, A2 | Data I/O A side | Bidirectional signals tied to refA domain; tolerate up to 5 V regardless of refA setting |
| B1, B2 | Data I/O B side | Bidirectional signals tied to refB domain; tolerate up to 5 V regardless of refB setting |
Key Features
| Feature | Design Value |
|---|---|
| No direction pin required | Reduces PCB routing complexity and eliminates need for GPIO-controlled control logic |
| Flow-through pinout | Enables straight trace routing across package - minimizes vias and signal skew in dense layouts |
| 5 V-tolerant I/O | Allows direct connection to legacy TTL or 5 V microcontrollers without external clamping |
| Hot-insertion support | EN = LOW forces high-Z state on all I/Os - prevents bus contention during live module replacement |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level A - ensures reliability in noisy industrial environments |
Applications
| I²C Bus Bridging | SMBus Power Management |
|---|---|
Use Scenario: Interfacing a 1.8 V SoC I²C controller with a 3.3 V sensor or EEPROM. IC Role / Device Role / Timing Role: Bidirectional level translator maintaining I²C clock/data integrity across voltage domains without added delay or protocol overhead. Use Value: Enables direct interoperability without external pull-up resistor recalculations or timing margin loss - preserves Fast-mode Plus (1 Mbit/s) compliance. |
Use Scenario: Connecting a 5 V PMBus host to 1.2 V/1.8 V digital power controllers in server VRMs. IC Role / Device Role / Timing Role: Voltage-domain translator for PMBus ALERT#, CLOCK, and DATA lines with guaranteed <1.3 ns propagation delay at 50 pF load. Use Value: Maintains PMBus command-response timing integrity while supporting hot-swap power rail configuration and fault reporting. |
| GPIO Domain Isolation | MDIO Interface Translation |
Use Scenario: Isolating 0.95 V FPGA I/O banks from 2.5 V PHY management registers in 10G Ethernet systems. IC Role / Device Role / Timing Role: Low-RON bidirectional translator preventing signal degradation during read-modify-write GPIO sequences. Use Value: Eliminates cross-domain leakage and ensures clean logic thresholds - critical for register bit-field updates without corruption. |
Use Scenario: Bridging 1.2 V switch ASIC MDIO management interface to 3.3 V PHY transceivers in telecom line cards. IC Role / Device Role / Timing Role: High-speed, low-skew translator for MDIO clock (MDC) and bidirectional data (MDIO) lines operating up to 2.5 MHz. Use Value: Guarantees setup/hold timing margins across voltage domains - avoids PHY initialization failures during boot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0102DSGR | Active-drive architecture with internal charge pump; requires no external pull-ups; higher static current (20 µA vs. 1 µA) | Better suited for ultra-low-power always-on monitoring; less tolerant of floating bus states | Select when external pull-up resistors are undesirable and supply current budget allows ~20× higher quiescent draw |
| PCA9306DCUR | Fixed 1.2 V–3.3 V and 1.8 V–5.0 V pairings only; no refA/refB flexibility; max 40 MHz up/down translation | Limited to two preset voltage combinations; insufficient for mixed-domain 0.95 V ↔ 5.0 V use cases | Choose only if design uses only standard pairs and speed requirements stay below 40 MHz |
Compared with TXS0102DSGR and PCA9306DCUR, the LSF0102GXX offers broader voltage pairing coverage, superior speed (≥100 MHz), and zero-direction-pin simplicity - making it optimal for flexible, high-speed, multi-rail embedded systems where external pull-up control is acceptable.
Availability
LSF0102GXX is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and personal computing applications requiring stable component supply, extended temperature operation, and robust ESD resilience.
Supply support for LSF0102GXX 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 LSF0102GXX belongs to Nexperia's bidirectional level translation product line, engineered specifically for seamless, pin-efficient voltage domain bridging in space-constrained, thermally demanding systems.
FAQ
What voltage combinations does the LSF0102GXX support?
The LSF0102GXX supports five discrete voltage pairings: 0.95 V ↔ 1.8 V, 1.2 V ↔ 1.8 V/2.5 V/3.3 V/5.0 V, 1.8 V ↔ 2.5 V/3.3 V/5.0 V, 2.5 V ↔ 3.3 V/5.0 V, and 3.3 V ↔ 5.0 V. Each channel uses independent refA and refB pins to configure its translation thresholds - no internal register programming is required.
Does the LSF0102GXX require external pull-up resistors?
Yes - external pull-up resistors are mandatory on both A-side and B-side data lines to establish valid HIGH logic levels during open-drain operation. The device itself contains no internal pull-ups; typical values range from 2.2 kΩ to 10 kΩ depending on bus capacitance and speed requirements.
How does the EN pin affect signal behavior?
When EN is driven LOW, all A1/A2/B1/B2 pins enter high-impedance (Z) state - effectively disconnecting both sides of the translator. This enables safe hot insertion, bus isolation during reset, or dynamic power gating without signal contention or leakage paths.
Can the LSF0102GXX translate between 5 V and sub-1 V logic domains?
No - the minimum supported refA voltage is 0.95 V, and refB must be ≥ refA. Translation from 5 V down to 0.95 V is supported, but direct 5 V ↔ 0.8 V or lower is outside specification. For sub-1 V domains, verify compatibility with the 0.95 V lower bound and ensure signal integrity at target edge rates.
LSF0102GXX 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:
- 2
- Voltage - VCCA:
- 0 V ~ 5 V
- Voltage - VCCB:
- 0 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:
- 8-XFDFN Exposed Pad
LSF0102GXX FAQ
1.How can I place an order for LSF0102GXX through Aetrix?
Please submit a Request for Quotation (RFQ) for LSF0102GXX 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 LSF0102GXX reliable?
The price and inventory of LSF0102GXX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LSF0102GXX is usually 5 days.
3.What payment methods are accepted for LSF0102GXX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LSF0102GXX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LSF0102GXX?
LSF0102GXX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LSF0102GXX 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 LSF0102GXX?
For technical support, including LSF0102GXX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LSF0102GXX requirements.
6.How does Aetrix verify that LSF0102GXX is sourced from the original manufacturer or authorized distributors?
All LSF0102GXX 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 LSF0102GXX meets industry standards.
7.What is the process for return or replacement of LSF0102GXX?
All LSF0102GXX units undergo pre-shipment inspection (PSI). If there is an issue with LSF0102GXX, 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 LSF0102GXX part is unused and in its original packaging.
Return procedure for LSF0102GXX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LSF0102GXX 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…
