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NXP Semiconductors 74LVC2G126GT/S500115
- Part No.:
- 74LVC2G126GT/S500115
- Manufacturer:
- NXP Semiconductors
- Package:
- 8-XFDFN
- Datasheet:
-
74LVC2G126GT/S500115.pdf
- Description:
- BUS DRIVER, LVC/LCX/Z SERIES
- Quantity:
- Payment:
- Shipping:
Inventory:4,235
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Product details
Overview
74LVC2G126GT/S500115 from Nexperia is a dual 3-state bus buffer/line driver with independent output enable inputs (1OE, 2OE), designed for level translation between 1.65 V–5.5 V logic domains in mixed-voltage systems. It features Schmitt-trigger inputs for noise immunity, IOFF partial power-down protection, and ±24 mA output drive at 3.0 V - enabling use in industrial I/O expansion and low-power sensor interface circuits.
For engineers reviewing the 74LVC2G126GT/S500115 datasheet, 74LVC2G126GT/S500115 pinout, 74LVC2G126GT/S500115 application, or 74LVC2G126GT/S500115 equivalent, key selection criteria include its XSON8 (SOT833-1) 1.0 × 1.95 × 0.5 mm package, -40 °C to +125 °C operation, 3.2 ns max propagation delay at 5 V, IOFF-enabled backflow prevention, and JEDEC JESD8-7/5/B compliance for multi-supply interoperability.
Technical Context
This device implements two independent non-inverting buffers, each with active-HIGH 3-state control via dedicated OE inputs. Its IOFF circuitry actively disables outputs and blocks current flow when VCC = 0 V, supporting hot-swap and partial power-down system architectures. Schmitt-trigger inputs tolerate slow-rising signals down to 10 ns/V input transition rate.
All inputs are overvoltage tolerant to 5.5 V regardless of VCC setting (1.65 V–5.5 V), enabling direct interfacing with 5 V TTL outputs while powered from 1.8 V or 3.3 V rails. Static and dynamic characteristics are fully specified across -40 °C to +125 °C, with leakage currents ≤±2 μA in OFF-state and supply current ≤4 μA in static operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65 V to 5.5 V - supports single-rail operation across 1.8 V, 2.5 V, 3.3 V, and 5 V logic families |
| Propagation Delay (tpd) | 3.2 ns max at VCC = 5.5 V - enables high-speed data routing in compact digital interfaces |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - sufficient to drive 50 pF loads with <5.4 ns delay, meeting LVTTL fanout requirements |
| IOFF Leakage Current | ≤±2 μA at VCC = 0 V - prevents damaging back-current during power sequencing or hot-plug events |
| Input Voltage Tolerance | Up to 5.5 V independent of VCC - allows 5 V signal inputs even when powered from 1.65 V |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood, industrial control, and extended-range embedded applications |
| ESD Robustness | HBM >2000 V, CDM >1000 V - reduces susceptibility to handling damage in automated assembly |
Pinout & Package
XSON8 package (SOT833-1): plastic extremely thin small outline, no leads, 8-terminal surface-mount device; body dimensions 1.0 mm × 1.95 mm × 0.5 mm; wettable flank terminals for automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1Y | Data output (Buffer 1) | Non-inverting output driven by 1A when 1OE = HIGH; enters high-impedance state when 1OE = LOW |
| 2OE | Output enable (Buffer 2) | Active-HIGH control: enables/disables 2Y independently of Buffer 1 |
| VCC | Positive supply | Single supply rail for both buffers; powers internal logic and output stage |
| 2A | Data input (Buffer 2) | Non-inverting input for second buffer channel |
| 2Y | Data output (Buffer 2) | Non-inverting output driven by 2A when 2OE = HIGH; high-Z when disabled |
| 1A | Data input (Buffer 1) | Non-inverting input for first buffer channel |
| 1OE | Output enable (Buffer 1) | Active-HIGH control: enables/disables 1Y independently of Buffer 2 |
| GND | Ground reference | 0 V return path for supply and signal integrity; required for IOFF functionality |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state buffers | Enables bidirectional bus isolation or unidirectional signal routing without external gating logic |
| IOFF partial power-down | Prevents current backflow through powered-down ICs during system sleep or rail sequencing |
| Schmitt-trigger inputs | Accepts slow or noisy signals (e.g., mechanical switch debouncing, long PCB traces) without oscillation |
| Overvoltage-tolerant inputs | Accepts 5 V inputs while operating from 1.65 V–3.3 V supplies - eliminates need for external level shifters |
| JEDEC-compliant voltage ranges | Fully compliant with JESD8-7 (1.65–1.95 V), JESD8-5 (2.3–2.7 V), and JESD8-B/JESD36 (2.7–3.6 V) |
| Ultra-compact XSON8 footprint | 1.0 × 1.95 mm area saves board space in space-constrained modules like wearables and IoT edge nodes |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Isolating microcontroller GPIOs from higher-voltage fieldbus transceivers and relay drivers in modular I/O cards. IC Role / Device Role / Timing Role: Dual buffer provides galvanically isolated signal conditioning and level translation between 3.3 V MCU and 5 V/24 V peripheral interfaces. Use Value: IOFF prevents backfeed during module hot-swap; Schmitt inputs suppress EMI-induced glitches on long cable runs. |
Use Scenario: Interfacing low-voltage sensor outputs (e.g., Hall effect, thermistor ADC) to 5 V CAN/LIN transceiver inputs in BCM subassemblies. IC Role / Device Role / Timing Role: Level-shifting buffer ensures reliable signal transfer across mixed-supply domains while maintaining timing integrity. Use Value: 3.2 ns max tpd preserves signal edge fidelity; 125 °C rating supports under-dash mounting near HVAC ducts. |
| Portable Medical Sensor Hub | Smart Energy Meter Interface |
Use Scenario: Aggregating analog sensor readings (ECG, SpO₂) into a low-power MCU with shared serial bus lines. IC Role / Device Role / Timing Role: 3-state outputs allow time-multiplexed sharing of SPI/I²C lines among multiple sensors. Use Value: Ultra-low ICC (≤4 μA) extends battery life; XSON8 package minimizes PCB real estate in handheld enclosures. |
Use Scenario: Isolating metrology ASIC digital outputs from isolated RS-485 or PLC communication interfaces in revenue-grade meters. IC Role / Device Role / Timing Role: Bus buffer decouples high-noise communication sections from precision analog front-end domains. Use Value: High noise immunity (Schmitt inputs + 24 mA drive) maintains data integrity in electrically noisy utility environments. |
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 |
|---|---|---|---|
| 74LVC2G125GT/S500115 | Inverting buffer (nA → nY); same XSON8 package, electrical specs, and temperature range | Required where signal polarity inversion is needed in bus arbitration or feedback paths | Select when logic inversion is part of system-level signal conditioning, not for direct replacement |
| SN74LVC2G126DCKR | VSSOP8 (SOT765-1) package; 2.3 mm body width; identical functional spec and AC/DC parameters | Better suited for manual rework or legacy layouts requiring gull-wing leads | Choose for prototyping, repair, or designs with existing VSSOP8 footprints - not pin-compatible with XSON8 |
Compared with 74LVC2G126GT/S500115, the 74LVC2G125GT offers inverted logic but identical drive and packaging, while SN74LVC2G126DCKR provides identical function in a larger, leaded package - making it suitable for hand-soldering or compatibility with older layout libraries but requiring PCB redesign for drop-in replacement.
Availability
74LVC2G126GT/S500115 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and portable medical device applications requiring stable component supply, extended temperature operation, and ultra-compact packaging.
Supply support for 74LVC2G126GT/S500115 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-enhancing components, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74LVC2G126GT belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, engineered for robust mixed-voltage interoperability, low static power, and high noise immunity in space- and energy-constrained embedded systems.
FAQ
What is the maximum propagation delay of the 74LVC2G126GT/S500115 at 5.5 V supply?
The maximum propagation delay (tpd) for the 74LVC2G126GT/S500115 is 3.2 ns when VCC = 4.5 V to 5.5 V, measured from input (nA) to output (nY) under load conditions of 50 pF and 500 Ω. This value is guaranteed across the full -40 °C to +125 °C operating range and reflects worst-case timing for synchronous signal routing in high-density digital systems.
Does the 74LVC2G126GT/S500115 support hot-swap or partial power-down operation?
Yes, the 74LVC2G126GT/S500115 incorporates IOFF circuitry that disables outputs and limits leakage to ≤±2 μA when VCC = 0 V. This feature prevents damaging back-current flow during hot-plug events or staggered power sequencing - a critical capability for modular industrial controllers and redundant power architectures where the 74LVC2G126GT/S500115 may be powered down while adjacent rails remain active.
Can the 74LVC2G126GT/S500115 interface 5 V inputs while powered from 1.8 V?
Yes, the 74LVC2G126GT/S500115 accepts input voltages up to 5.5 V regardless of VCC setting (1.65 V–5.5 V). When powered from 1.8 V, its inputs remain overvoltage tolerant - enabling direct connection to legacy 5 V TTL outputs without external level shifters. This behavior is explicitly validated per JEDEC JESD8-7 and confirmed in Table 6 (Recommended Operating Conditions).
What is the package type and terminal configuration of the 74LVC2G126GT/S500115?
The 74LVC2G126GT/S500115 uses the XSON8 package (SOT833-1): an 8-terminal, leadless, ultra-thin surface-mount device with dimensions 1.0 mm × 1.95 mm × 0.5 mm. Terminals are arranged in a 2×4 grid with pin 1 located at the lower-left corner beneath the marking code "V26", and all terminals are wettable flanks for reliable solder-joint inspection.
How does the Schmitt-trigger input improve noise immunity in the 74LVC2G126GT/S500115?
The Schmitt-trigger inputs in the 74LVC2G126GT/S500115 provide hysteresis (typically ~0.3 V at 3.3 V), eliminating false triggering from slow-rising/falling signals or EMI-induced noise on long traces or unshielded cables. This allows reliable operation with input transition rates as low as 10 ns/V - critical for interfacing with mechanical switches, thermistors, or legacy industrial sensors where signal integrity cannot be guaranteed.
74LVC2G126GT/S500115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVC
- Package/Case:
- 8-XFDFN
- Packaging:
- Bulk
- 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 (1.95x1)
74LVC2G126GT/S500115 FAQ
1.How can I place an order for 74LVC2G126GT/S500115 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC2G126GT/S500115 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/S500115 reliable?
The price and inventory of 74LVC2G126GT/S500115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC2G126GT/S500115 is usually 5 days.
3.What payment methods are accepted for 74LVC2G126GT/S500115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC2G126GT/S500115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC2G126GT/S500115?
74LVC2G126GT/S500115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC2G126GT/S500115 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/S500115?
For technical support, including 74LVC2G126GT/S500115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC2G126GT/S500115 requirements.
6.How does Aetrix verify that 74LVC2G126GT/S500115 is sourced from the original manufacturer or authorized distributors?
All 74LVC2G126GT/S500115 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/S500115 meets industry standards.
7.What is the process for return or replacement of 74LVC2G126GT/S500115?
All 74LVC2G126GT/S500115 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC2G126GT/S500115, 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/S500115 part is unused and in its original packaging.
Return procedure for 74LVC2G126GT/S500115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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