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Nexperia USA Inc. 74LVC1G125GXH
- Part No.:
- 74LVC1G125GXH
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 4-XFDFN Exposed Pad
- Datasheet:
-
74LVC1G125GXH.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 5X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:6,305
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Product details
Overview
74LVC1G125GXH from Nexperia is a single 3-state bus buffer/line driver with Schmitt-trigger inputs, designed for level translation between 1.65 V and 5.5 V logic domains. It supports mixed-voltage systems (e.g., 3.3 V MCU interfacing to 5 V peripherals), delivers ±24 mA output drive at 3.0 V, features IOFF partial power-down protection, and operates across –40 °C to +125 °C.
For engineers reviewing the 74LVC1G125GXH datasheet, 74LVC1G125GXH pinout, 74LVC1G125GXH application, or 74LVC1G125GXH equivalent, this device is selected for low-power, space-constrained bidirectional signal buffering in industrial I/O expanders, sensor interface subassemblies, and FPGA configuration buses where voltage domain bridging and high noise immunity are required.
Technical Context
This device implements a non-inverting buffer with active-low 3-state enable (OE), enabling precise control of signal flow on shared buses. Its Schmitt-trigger inputs accept slow-rising signals (Δt/ΔV down to 10 ns/V) and tolerate input overvoltage up to 5.5 V regardless of VCC.
The IOFF circuit ensures outputs enter high-impedance state when VCC = 0 V, blocking backflow current during partial power-down - critical for hot-swap and power-gated subsystems. All static and dynamic parameters are fully characterized from –40 °C to +125 °C under JEDEC-compliant supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65 V to 5.5 V - enables direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V logic families without external level shifters. |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - sufficient to drive 15 pF loads with <4.5 ns propagation delay, supporting moderate-speed bus loading. |
| Propagation Delay (A→Y) | 0.5 ns (min) to 4.5 ns (max) at VCC = 3.0–3.6 V - ensures timing predictability in 50 MHz–100 MHz digital control paths. |
| IOFF Leakage Current | ±2 μA max at VCC = 0 V - prevents >1 μA backfeed into powered-down rails, satisfying IEC 61000-4-2 system-level ESD robustness requirements. |
| Input Threshold Hysteresis | Typical 0.3 V - provides ≥200 mV noise margin against ground bounce and crosstalk in noisy industrial PCB environments. |
| ESD Robustness | HBM >2000 V, CDM >1000 V - exceeds JEDEC JS-001/JS-002 Class 2/C3, reducing need for external TVS protection in board-level designs. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive modules, motor drive controllers, and outdoor industrial gateways. |
Pinout & Package
X2SON5 package (SOT1226-3): plastic thermal-enhanced extremely thin small outline, no leads, 5 terminals, body size 0.8 × 0.8 × 0.32 mm, side-wettable flanks not present (distinguishes it from GZ variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Active-low output enable | Drives Y high-impedance when LOW; must be pulled HIGH via 10 kΩ resistor if unused to prevent floating bus states. |
| 2 (VCC) | Positive supply rail | Accepts 1.65–5.5 V; decoupling capacitor (100 nF X7R) required within 2 mm for stable switching performance. |
| 3 (GND) | Ground reference | Low-inductance connection to PCB ground plane essential to minimize VCC/GND bounce during 24 mA transitions. |
| 4 (Y) | 3-state buffered output | Non-inverting output with ±24 mA drive; compatible with TTL, CMOS, and LVTTL loads up to 50 pF. |
| 5 (A) | Data input | Schmitt-trigger input accepts 0–5.5 V regardless of VCC; immune to rise/fall times >10 ns/V in 3.0–5.5 V operation. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (1.65–5.5 V) | Eliminates need for dedicated level translators in multi-rail systems, reducing BOM count and layout area. |
| IOFF partial power-down | Prevents destructive current flow when VCC is off but A or Y pins remain biased - mandatory for PCIe hot-plug and modular PLC backplanes. |
| Schmitt-trigger inputs | Enables reliable operation with slow-switching sensors (e.g., thermistors, mechanical switches) without external hysteresis circuitry. |
| 5-pin X2SON5 footprint | 0.64 mm² board area (0.8 × 0.8 mm) supports ultra-dense routing in wearables, IoT edge nodes, and compact motor drivers. |
| –40 °C to +125 °C qualification | Validated for continuous operation in automotive engine control units and industrial inverters without derating. |
Applications
| Industrial Sensor Interface | FPGA Configuration Bus |
|---|---|
|
Use Scenario: Isolating analog sensor ADC outputs from noisy digital control logic in programmable logic controllers. IC Role / Device Role / Timing Role: Unidirectional signal buffer isolating 3.3 V ADC data lines from 5 V FPGA configuration I/O banks. Use Value: Schmitt-trigger inputs reject EMI-induced glitches on long sensor traces; IOFF prevents backfeed during FPGA reconfiguration cycles. |
Use Scenario: Driving configuration clock (CCLK) and data (DIN) lines from a microcontroller to an FPGA during power-up sequencing. IC Role / Device Role / Timing Role: 3-state buffer enabling shared use of configuration lines between multiple configuration sources. Use Value: 4.5 ns max tPD at 3.3 V meets Spartan-7 FPGA CCLK setup requirements; 5-pin X2SON5 saves >60% board area vs. TSSOP5. |
| Automotive Body Control Module | USB-C Power Delivery Monitor |
|
Use Scenario: Level-shifting LIN bus wake-up signals between 5 V transceiver and 1.8 V microcontroller GPIO. IC Role / Device Role / Timing Role: Voltage translator with overvoltage-tolerant inputs handling 12 V battery transients on LIN line. Use Value: Input tolerance to 5.5 V allows direct connection to LIN PHY without clamping diodes; –40 °C to +125 °C rating matches under-dash environment. |
Use Scenario: Buffering CC1/CC2 communication lines between USB-C port controller and PD policy engine in portable chargers. IC Role / Device Role / Timing Role: Low-capacitance (5 pF) buffer preserving USB PD BMC signaling integrity at 300 kHz. Use Value: CI = 5 pF minimizes signal distortion on 3.3 V CC lines; ±24 mA drive supports 20 cm trace lengths per USB-C spec. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DBVR | SC-70-5 package (SOT23-5); 1.65–5.5 V; ±24 mA; same logic function and IOFF. | Larger footprint (2.1 × 1.25 mm) and 2× higher thermal resistance vs. X2SON5 - less suitable for thermally constrained layouts. | Select when legacy SC-70 assembly infrastructure exists or when manual rework accessibility is prioritized over miniaturization. |
| 74LVC1G125GV | SC-74A package (SOT753); identical electrical specs; same -40 °C to +125 °C rating. | 3.1 × 1.7 mm body with gull-wing leads - better solder joint inspection but 3.5× larger area than GXH's 0.8 × 0.8 mm. | Choose for cost-sensitive industrial controls where automated optical inspection (AOI) of gull-wing leads is required. |
Compared with SN74LVC1G125DBVR and 74LVC1G125GV, the 74LVC1G125GXH offers the smallest PCB footprint (0.64 mm²) and lowest thermal resistance among pin-compatible LVC1G125 variants, making it optimal for space- and thermal-critical USB-C, wearable, and automotive ADAS subassemblies.
Availability
74LVC1G125GXH is available at Aetrix Electronics and suitable for industrial sensor interfaces, FPGA configuration buses, automotive body control modules, and USB-C power delivery monitors requiring stable component supply across extended temperature ranges.
Supply support for 74LVC1G125GXH 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 components for automotive, industrial, mobile, and computing markets, with leadership in logic, discrete, and MOSFET technologies.
The 74LVC1G125 belongs to Nexperia's low-voltage CMOS logic family, engineered for energy-efficient signal integrity in mixed-voltage embedded systems where space, power, and thermal constraints dominate design decisions.
FAQ
Can 74LVC1G125GXH operate with VCC = 1.65 V while driving a 5 V input signal on pin A?
Yes. Pin A is overvoltage tolerant to 5.5 V independent of VCC, allowing safe interfacing with 5 V signals even at minimum 1.65 V supply. The Schmitt-trigger input ensures clean logic recognition without external clamping, and VIH/VIL thresholds scale correctly per JEDEC JESD8-7.
What is the maximum capacitive load the Y output can drive while maintaining specified tPD?
The datasheet specifies tPD values with 30–50 pF loads depending on VCC. At VCC = 3.3 V, the 4.5 ns max tPD is guaranteed for CL ≤ 50 pF. Driving >50 pF increases propagation delay nonlinearly and may violate setup/hold margins in high-speed interfaces like FPGA configuration clocks.
Does the IOFF feature protect against backfeed when only OE is pulled low while VCC remains powered?
No. IOFF activates only when VCC = 0 V. With VCC powered, pulling OE low places Y in high-impedance but does not disable internal input structures - backfeed protection requires full VCC removal. IOFF is intended for system-level partial power-down, not pin-level isolation.
Is the X2SON5 package (SOT1226-3) compatible with standard reflow profiles for lead-free soldering?
Yes. The SOT1226-3 package is qualified for IPC/JEDEC J-STD-020D moisture sensitivity level 1 and withstands peak reflow temperatures up to 260 °C. Its thermal-enhanced construction ensures uniform heating and reduces risk of tombstoning compared to smaller XSON variants.
74LVC1G125GXH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- 4-XFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 32mA
- Voltage - Supply:
- 1.65V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-X2SON (0.80x0.80)
74LVC1G125GXH FAQ
1.How can I place an order for 74LVC1G125GXH through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC1G125GXH 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 74LVC1G125GXH reliable?
The price and inventory of 74LVC1G125GXH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC1G125GXH is usually 5 days.
3.What payment methods are accepted for 74LVC1G125GXH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC1G125GXH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC1G125GXH?
74LVC1G125GXH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC1G125GXH 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 74LVC1G125GXH?
For technical support, including 74LVC1G125GXH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC1G125GXH requirements.
6.How does Aetrix verify that 74LVC1G125GXH is sourced from the original manufacturer or authorized distributors?
All 74LVC1G125GXH 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 74LVC1G125GXH meets industry standards.
7.What is the process for return or replacement of 74LVC1G125GXH?
All 74LVC1G125GXH units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC1G125GXH, 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 74LVC1G125GXH part is unused and in its original packaging.
Return procedure for 74LVC1G125GXH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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