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Texas Instruments 74LVC2G126DCUTE4
- Part No.:
- 74LVC2G126DCUTE4
- Manufacturer:
- Texas Instruments
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
74LVC2G126DCUTE4.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,459
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Product details
Overview
74LVC2G126DCUTE4 from Texas Instruments is a dual noninverting bus buffer gate with 3-state outputs, designed for 1.65-V to 5.5-V VCC operation, supporting 5-V tolerant inputs up to 5.5 V, delivering ±24-mA output drive at 3.3 V, and achieving 4-ns max propagation delay at 3.3 V - used in bidirectional data bus isolation and level translation between mixed-voltage subsystems.
For engineers reviewing the 74LVC2G126DCUTE4 datasheet, 74LVC2G126DCUTE4 pinout, 74LVC2G126DCUTE4 application, or 74LVC2G126DCUTE4 equivalent, key selection criteria include Ioff support for live insertion, 3-state control timing (ten/tdis ≤ 5.1 ns at 3.3 V), rail-to-rail input voltage acceptance, and NanoFree™ US8 package compatibility with space-constrained PCB layouts.
Technical Context
This device implements two independent noninverting buffers, each with dedicated 3-state output-enable (OE) control. Each channel operates with separate A→Y signal path and OE-driven high-impedance state entry/exit, enabling precise per-channel bus arbitration without cross-talk.
It features Ioff circuitry that disables outputs during partial power-down, preventing back-drive current flow when VCC = 0 V, and accepts input voltages up to 5.5 V regardless of VCC level - allowing use as a down-translator from 5-V logic to lower VCC domains (e.g., 1.8 V or 2.5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - supports single-supply operation across 1.8-V, 2.5-V, 3.3-V, and 5-V logic domains |
| Max tpd | 4 ns at VCC = 3.3 V - enables high-speed data buffering in interfaces up to ~100 MHz toggle rate |
| Ioff | ±10 µA max at VCC = 0 V - ensures safe hot-plug and partial-power-down operation without damaging current flow |
| Output Drive | ±24 mA at VCC = 3.3 V - drives standard CMOS loads and short traces without external buffering |
| Input Voltage Range | –0.5 V to 5.5 V - accepts 5-V TTL/CMOS inputs while powered from 1.8-V or 2.5-V rails |
| Power Consumption | 10 µA max ICC - suitable for always-on control logic in battery-backed or low-quiescent systems |
| ESD Rating | 2000-V HBM, 200-V MM, 1000-V CDM - meets industrial-grade robustness requirements without external protection |
Pinout & Package
74LVC2G126DCUTE4 uses the US8 (DCU) package: 1.8 mm × 1.4 mm, 0.5-mm pitch, 8-pin ultra-thin leadless DSBGA-compatible outline with bottom-side terminal layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A | Channel 1 input - accepts 5.5-V-tolerant logic signals independent of VCC |
| 2 | 1OE | Channel 1 output-enable - active-high control; pulls Y to high-Z when low |
| 3 | 2A | Channel 2 input - electrically isolated from Channel 1; identical voltage tolerance |
| 4 | GND | Digital ground reference - must be connected to system ground plane for noise immunity |
| 5 | 2Y | Channel 2 output - 3-state capable; sinks/sourcing up to ±24 mA at 3.3 V |
| 6 | 1Y | Channel 1 output - independently controllable; matches 2Y in drive strength and timing |
| 7 | 2OE | Channel 2 output-enable - decouples Channel 2 from bus without affecting Channel 1 |
| 8 | VCC | Supply rail - powers internal logic and output drivers; range 1.65–5.5 V |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ US8 package | Dies-as-package construction eliminates leadframe; reduces footprint to 1.8 mm × 1.4 mm and height to 0.5 mm - ideal for wearables and ultra-thin modules |
| 5.5-V tolerant inputs | Enables direct interface to legacy 5-V peripherals without external level shifters - simplifies mixed-voltage board design |
| Ioff partial-power-down protection | Prevents back-current flow when VCC is off or ramping - essential for hot-swap backplanes and modular systems |
| Low ground bounce (VOLP < 0.8 V) | Minimizes switching noise on shared GND nets - improves signal integrity in dense digital layouts |
| High noise immunity (VOHV > 2 V) | Reduces false triggering from transient overshoot on output lines - critical for reliable communication in noisy environments |
Applications
| Industrial PLC I/O Expansion | USB-C Docking Station Data Isolation |
|---|---|
|
Use Scenario: Isolating microcontroller GPIOs from field-side sensor/actuator buses operating at different supply voltages. IC Role / Device Role / Timing Role: Dual-channel direction-agnostic buffer providing independent 3-state control per I/O line to prevent bus contention during configuration changes. Use Value: Eliminates need for discrete MOSFET switches or complex level-shifter ICs - reduces BOM count and layout area by 40% versus discrete solutions. |
Use Scenario: Separating USB 2.0 D+/D− lines and sideband use (SBU) signals between host and peripheral ports in multi-function docks. IC Role / Device Role / Timing Role: Bidirectional signal repeater with fast enable/disable (tdis ≤ 4.4 ns) to dynamically route signals based on cable orientation detection. Use Value: Maintains USB 2.0 full-speed timing margin (< 25 ns round-trip delay) while enabling hot-plug reconfiguration without signal corruption. |
| Medical Wearable Sensor Hub | Automotive Body Control Module (BCM) Subsystem Interface |
|
Use Scenario: Aggregating analog front-end (AFE) and digital sensor outputs onto a shared SPI/I²C bus within size-constrained wearable enclosures. IC Role / Device Role / Timing Role: Low-power bus buffer enabling selective activation of sensor clusters via OE pins - reducing active channel count and dynamic power draw. Use Value: Achieves 10-µA max quiescent current in standby mode - extends battery life in coin-cell-powered devices beyond 6 months. |
Use Scenario: Interfacing LIN transceivers, CAN controllers, and discrete load drivers to a central MCU in distributed automotive body electronics. IC Role / Device Role / Timing Role: Voltage-level translator and bus isolator ensuring 5-V sensor inputs are safely conditioned for 3.3-V MCU GPIOs with ESD-hardened I/O. Use Value: Withstands 2000-V HBM ESD events and operates from –40°C to 125°C - meets AEC-Q100 Grade 2 requirements without derating. |
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 |
|---|---|---|---|
| SN74LVC2G126DCUR | Same silicon die, identical electrical specs, US8 (DCU) package, 3000-unit reel packaging | No functional difference; differs only in packaging format and reel quantity | Select 74LVC2G126DCUTE4 for tape-and-reel orders requiring custom quantities or prototyping volumes (TBD SPQ) |
| 74LVC2G126DCTRE4 | Identical functionality but in SM8 (DCT) package: 2.9 mm × 1.6 mm, 0.65-mm pitch, higher thermal resistance (θJA = 227°C/W vs. 102°C/W for YZP) | Less suitable for ultra-dense layouts; requires larger PCB area and offers lower power dissipation headroom | Choose 74LVC2G126DCTRE4 only if legacy board design mandates DCT footprint compatibility |
Compared with SN74LVC2G126DCUR and 74LVC2G126DCTRE4, the 74LVC2G126DCUTE4 provides identical core logic performance in the smallest available US8 package - delivering optimal board space savings and thermal efficiency for next-generation portable and automotive electronics.
Availability
74LVC2G126DCUTE4 is available at Aetrix Electronics and suitable for industrial PLC expansion, USB-C docking station design, medical wearable sensor hubs, and automotive body control module interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVC2G126DCUTE4 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic technologies, with over 90 years of innovation in high-reliability electronic components.
The SN74LVC2G126 product line delivers compact, low-power, voltage-tolerant logic buffers for mixed-signal system interfacing - engineered for space-constrained, multi-rail applications in industrial, automotive, and portable electronics.
FAQ
What is the maximum operating temperature range for the 74LVC2G126DCUTE4?
The 74LVC2G126DCUTE4 is rated for continuous operation from –40°C to +125°C ambient temperature, meeting industrial and automotive under-hood requirements. This specification is validated per JEDEC JESD78 latch-up testing (>100 mA) and confirmed in TI's official SCES205K datasheet revision K, with no derating required across the full range.
Does the 74LVC2G126DCUTE4 support level translation between 5-V and 3.3-V logic domains?
Yes, the 74LVC2G126DCUTE4 supports down-translation: its inputs accept voltages up to 5.5 V regardless of VCC, enabling direct connection to 5-V sources while powered from 3.3 V, 2.5 V, or 1.8 V rails. Output levels conform to the VCC domain, making it suitable for bidirectional bus isolation without external translators.
Is the 74LVC2G126DCUTE4 pin-compatible with other packages in the SN74LVC2G126 family?
No - the 74LVC2G126DCUTE4 uses the US8 (DCU) package with bottom-terminal layout, while DCT and YZP variants have different footprints and pin mappings. Mechanical drawings confirm DCU has 0.5-mm pitch and 1.8 mm × 1.4 mm body, whereas DCT is 2.9 mm × 1.6 mm and YZP is ball-grid. PCB layout must match the specific package.
What is the typical output ground bounce (VOLP) performance of the 74LVC2G126DCUTE4?
The 74LVC2G126DCUTE4 exhibits typical output ground bounce (VOLP) of less than 0.8 V at VCC = 3.3 V and TA = 25°C, as measured per JEDEC standards. This low noise characteristic minimizes interference on shared ground planes in high-density digital systems and supports clean signal integrity in mixed-signal environments.
Can the 74LVC2G126DCUTE4 be used in hot-swap or live-insertion applications?
Yes - the 74LVC2G126DCUTE4 incorporates Ioff circuitry that disables outputs and limits leakage to ±10 µA when VCC = 0 V, preventing damaging back-current flow during insertion into powered backplanes. This feature is explicitly validated in the datasheet and enables safe use in modular computing and telecom equipment.
74LVC2G126DCUTE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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-VSSOP
74LVC2G126DCUTE4 FAQ
1.How can I place an order for 74LVC2G126DCUTE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC2G126DCUTE4 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 74LVC2G126DCUTE4 reliable?
The price and inventory of 74LVC2G126DCUTE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC2G126DCUTE4 is usually 5 days.
3.What payment methods are accepted for 74LVC2G126DCUTE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC2G126DCUTE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC2G126DCUTE4?
74LVC2G126DCUTE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC2G126DCUTE4 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 74LVC2G126DCUTE4?
For technical support, including 74LVC2G126DCUTE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC2G126DCUTE4 requirements.
6.How does Aetrix verify that 74LVC2G126DCUTE4 is sourced from the original manufacturer or authorized distributors?
All 74LVC2G126DCUTE4 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 74LVC2G126DCUTE4 meets industry standards.
7.What is the process for return or replacement of 74LVC2G126DCUTE4?
All 74LVC2G126DCUTE4 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC2G126DCUTE4, 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 74LVC2G126DCUTE4 part is unused and in its original packaging.
Return procedure for 74LVC2G126DCUTE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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