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Nexperia USA Inc. 74LVC2G126GT,115
- Part No.:
- 74LVC2G126GT,115
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 8-XFDFN
- Datasheet:
-
74LVC2G126GT,115.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 8XSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,092
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Product details
Overview
74LVC2G126GT,115 from Nexperia is a dual 3-state bus buffer/line driver with independent output enable inputs (1OE, 2OE), designed for level translation between 3.3 V and 5 V logic domains. It features Schmitt-trigger inputs for noise immunity, IOFF partial power-down protection, ±24 mA output drive at VCC = 3.0 V, and operates across -40 °C to +125 °C in the XSON8 (SOT833-1) package.
For engineers reviewing the 74LVC2G126GT,115 datasheet, 74LVC2G126GT,115 pinout, 74LVC2G126GT,115 application, or 74LVC2G126GT,115 equivalent, this device serves as a compact, low-power interface solution in mixed-voltage I/O expansion, bidirectional data bus control, and isolated peripheral enable paths where space-constrained PCB layouts demand ultra-thin packaging.
Technical Context
The 74LVC2G126GT implements two independent non-inverting buffers, each with active-HIGH 3-state control. Its IOFF circuitry disables outputs and blocks backflow current when VCC = 0 V, enabling safe hot-insertion in partially powered systems. Schmitt-trigger inputs accept slow-rising signals and tolerate input voltages up to 5.5 V regardless of VCC setting (1.65 V–5.5 V).
Propagation delay ranges from 0.5 ns (VCC = 4.5–5.5 V) to 12.5 ns (VCC = 1.65–1.95 V); enable/disable times are tightly specified (e.g., ten ≤ 3.9 ns max at 5 V). The device complies with JEDEC standards JESD8-7, JESD8-5, and JESD8-B/JESD36 for multi-voltage interoperability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 1.65 V to 5.5 V - supports direct interfacing with both 1.8 V, 2.5 V, 3.3 V, and 5 V logic families |
| Output drive strength | ±24 mA at VCC = 3.0 V - sufficient to drive standard CMOS loads and short PCB traces without external buffering |
| IOFF leakage current | ±2 μA max at VCC = 0 V - prevents damaging backflow during partial power-down sequences |
| Propagation delay (tpd) | 0.5 ns to 12.5 ns - enables high-speed data routing in timing-critical interfaces like memory expansion or FPGA I/O banks |
| Operating temperature | -40 °C to +125 °C - qualified for industrial and extended-temperature embedded applications |
| Input overvoltage tolerance | 5.5 V absolute max - allows 5 V inputs even when powered from 1.65 V, enabling robust level translation |
| ESD protection | HBM > 2000 V, CDM > 1000 V - meets industrial-grade reliability requirements without external protection components |
Pinout & Package
XSON8 plastic extremely thin small outline package (SOT833-1); no leads; 8 terminals; body dimensions 1.0 × 1.95 × 0.5 mm; pin 1 indicator located on lower left corner below marking code "V26".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OE | Active-HIGH output enable for first buffer - drives 1Y into high-impedance when LOW |
| 2 | 1A | Data input for first buffer - passes through to 1Y when 1OE = HIGH |
| 3 | 1Y | Inverting output of first buffer - driven LOW/HIGH or placed in 3-state per 1OE control |
| 4 | GND | Ground reference - must be connected to system 0 V plane for stable operation and ESD path |
| 5 | 2A | Data input for second buffer - independent signal path from 1A |
| 6 | 2Y | Output of second buffer - electrically isolated from 1Y; shares no internal coupling |
| 7 | 2OE | Active-HIGH output enable for second buffer - fully independent of 1OE |
| 8 | VCC | Positive supply - powers both buffers; IOFF protection activates when VCC = 0 V |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state buffers | Enables separate control of two data paths (e.g., bidirectional I²C pull-up isolation or dual SPI slave select lines) |
| Schmitt-trigger inputs | Provides > 0.3 V hysteresis - eliminates chatter on slow or noisy control signals such as mechanical switch debouncing or long cable inputs |
| IOFF partial power-down | Blocks current flow between powered/unpowered sections - critical for PCIe hot-plug, modular backplanes, and battery-backed subsystems |
| Overvoltage-tolerant inputs | Accepts 5.5 V inputs while VCC ≥ 1.65 V - eliminates need for external level shifters in mixed-voltage microcontroller GPIO expansion |
| Ultra-compact XSON8 footprint | 1.0 × 1.95 mm body area - saves >60% board space vs. TSSOP8, ideal for wearables and miniaturized IoT edge nodes |
Applications
| Industrial PLC I/O Expansion | FPGA Configuration Bus Isolation |
|---|---|
Use Scenario: Isolating FPGA configuration pins (e.g., INIT_B, PROGRAM_B) from host MCU during power sequencing. IC Role / Device Role / Timing Role: Dual buffer provides independent 3-state control of two critical FPGA reset/configuration lines with precise timing margins. Use Value: Prevents contention during FPGA power-up/down cycles; IOFF ensures no backfeed when FPGA is unpowered but MCU remains active. |
Use Scenario: Driving multiple SPI flash devices from a single FPGA master while preventing bus contention. IC Role / Device Role / Timing Role: Each buffer isolates one flash chip's SI/SO lines; 3-state outputs allow shared MISO/MOSI busing. Use Value: Enables dynamic selection of up to two flash devices using OE control, reducing FPGA pin count and eliminating discrete MOSFET switches. |
| USB-C Port Controller Interface | Automotive Body Control Module (Non-Automotive Qualified) |
Use Scenario: Translating 3.3 V USB-C port controller GPIOs (e.g., CC1/CC2 detection, VCONN enable) to 5 V legacy PMIC signaling. IC Role / Device Role / Timing Role: Level-shifting buffer with Schmitt inputs handles slow analog comparator outputs from CC line sensing circuits. Use Value: Eliminates need for discrete resistor-divider networks and external hysteresis components; reduces BOM count by 4+ parts per port. |
Use Scenario: Interfacing 3.3 V microcontroller I/O with 5 V sensor modules (e.g., HVAC fan speed feedback, door latch status) in non-safety-critical cabin electronics. IC Role / Device Role / Timing Role: Bidirectional buffer isolates MCU from higher-voltage peripherals while maintaining signal integrity under EMI-prone vehicle environments. Use Value: Schmitt-trigger inputs reject conducted noise on long harness runs; wide VCC range accommodates battery voltage fluctuations (10–16 V system). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G126DBVR | VSSOP8 (SOT765-1) package; 2.3 mm body width; 0.5 mm pitch; slightly higher thermal resistance than XSON8 | Better manual solderability and test probe access; less suitable for ultra-dense layouts | Select when board assembly uses reflow-only processes or requires easier post-production debugging access |
| 74LVC2G125GT,115 | Active-LOW output enable (nOE) instead of active-HIGH; identical electrical specs and XSON8 package | Requires inverted logic in enable control firmware/hardware; otherwise drop-in compatible in pinout and function | Select when existing design already uses active-LOW enable architecture to avoid gate-level inversion logic |
Compared with SN74LVC2G126DBVR, the 74LVC2G126GT,115 offers superior board-area efficiency and thermal performance in space-constrained designs; compared with 74LVC2G125GT,115, it eliminates need for external inverters in active-HIGH control systems, reducing component count and propagation delay.
Availability
74LVC2G126GT,115 is available at Aetrix Electronics and suitable for industrial automation I/O expansion, FPGA configuration isolation, USB-C interface translation, and automotive cabin electronics requiring stable component supply across extended temperature ranges.
Supply support for 74LVC2G126GT,115 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 high-volume, high-reliability logic, discrete, and MOSFET solutions, with leadership in advanced packaging and automotive-qualified components.
The 74LVC2G126GT belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, engineered for low-power, mixed-voltage interoperability in space- and energy-constrained embedded systems.
FAQ
Can the 74LVC2G126GT,115 operate with VCC = 1.65 V while accepting 5 V inputs?
Yes. The device supports overvoltage-tolerant inputs up to 5.5 V independent of VCC, which can be as low as 1.65 V. This allows safe 5 V-to-3.3 V or 5 V-to-1.8 V level translation without external components, provided input current limits (±50 mA) are not exceeded and VI remains within absolute maximum ratings.
What is the significance of the IOFF feature in real-world use?
IOFF disables outputs and blocks current flow when VCC = 0 V, preventing backfeed from powered downstream circuits into an unpowered IC. This is essential in hot-swap systems, modular backplanes, and battery-backed subsystems where partial power-down states occur during maintenance or fault recovery.
Does the 74LVC2G126GT,115 require external pull-up or pull-down resistors on its OE inputs?
No. OE inputs have no internal weak pull-ups or pull-downs and must be actively driven HIGH or LOW. Leaving them floating risks undefined output states and increased power consumption due to input stage metastability; external biasing is required only if system-level logic does not guarantee defined levels during all operational modes.
How does the Schmitt-trigger input improve noise immunity in practical designs?
Schmitt-trigger inputs provide ~0.3 V hysteresis, meaning the threshold for rising-edge detection (e.g., 1.7 V at VCC = 2.5 V) differs from falling-edge detection (e.g., 1.4 V). This prevents multiple toggles on slow or noisy signals-such as those from mechanical switches, long cables, or unshielded sensors-ensuring clean, single-event transitions at the output.
74LVC2G126GT,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- 8-XFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- 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:
- 8-XSON, SOT833-1 (1.95x1)
74LVC2G126GT,115 FAQ
1.How can I place an order for 74LVC2G126GT,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC2G126GT,115 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 74LVC2G126GT,115 reliable?
The price and inventory of 74LVC2G126GT,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC2G126GT,115 is usually 5 days.
3.What payment methods are accepted for 74LVC2G126GT,115?
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4.How is shipping managed for 74LVC2G126GT,115?
74LVC2G126GT,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC2G126GT,115 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 74LVC2G126GT,115?
For technical support, including 74LVC2G126GT,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC2G126GT,115 requirements.
6.How does Aetrix verify that 74LVC2G126GT,115 is sourced from the original manufacturer or authorized distributors?
All 74LVC2G126GT,115 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 74LVC2G126GT,115 meets industry standards.
7.What is the process for return or replacement of 74LVC2G126GT,115?
All 74LVC2G126GT,115 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC2G126GT,115, 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 74LVC2G126GT,115 part is unused and in its original packaging.
Return procedure for 74LVC2G126GT,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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