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Nexperia USA Inc. 74LVC2G126DC-Q100H
- Part No.:
- 74LVC2G126DC-Q100H
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
74LVC2G126DC-Q100H.pdf
- Description:
- IC BUF NON-INVERT 5.5V 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:8,218
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Product details
Overview
74LVC2G126DC-Q100 from Nexperia is a dual 3-state bus buffer/line driver with independent output enable (nOE) control per channel, operating from 1.65 V to 5.5 V supply, supporting mixed-voltage translation between 3.3 V and 5 V systems, featuring ±24 mA output drive at VCC = 3.0 V and Schmitt-trigger inputs for noise immunity in automotive signal routing applications.
For engineers reviewing the 74LVC2G126DC-Q100 datasheet, 74LVC2G126DC-Q100 pinout, 74LVC2G126DC-Q100 application, or 74LVC2G126DC-Q100 equivalent, this AEC-Q100 Grade 1 qualified device is selected for robust bidirectional bus interfacing, level translation, and high-noise-environment signal conditioning where IOFF-enabled partial power-down and overvoltage-tolerant inputs are required.
Technical Context
This device implements two independent non-inverting buffers, each with active-HIGH 3-state output enable (1OE, 2OE), enabling selective bus isolation. Each channel accepts input voltages up to 5.5 V regardless of VCC, allowing direct interface with 5 V logic while powered from 1.65–5.5 V supplies.
The IOFF circuit ensures outputs enter high-impedance state when VCC = 0 V, preventing backflow current during partial power-down. Schmitt-trigger inputs provide hysteresis (typ. 0.3 V at VCC = 3.3 V), tolerating slow-rising signals and improving noise margin in automotive wiring harnesses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65 V to 5.5 V - Enables operation across legacy 3.3 V and modern 5 V domains without level shifters. |
| Input Voltage Tolerance | Up to 5.5 V - Allows direct connection to 5 V sources even when VCC is as low as 1.65 V. |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - Sufficient to drive 50 Ω transmission lines or multiple CMOS loads in ADAS sensor interfaces. |
| Propagation Delay | 0.5 ns to 5.4 ns (VCC = 3.0–3.6 V) - Supports >100 MHz data rates in CAN FD or LIN bus auxiliary signal paths. |
| IOFF Leakage Current | ±2 μA at VCC = 0 V - Ensures safe hot-plug and sleep-mode isolation in body control modules. |
| Operating Temperature | −40 °C to +125 °C - Qualified for under-hood and powertrain ECU environments per AEC-Q100 Grade 1. |
| ESD Protection | HBM >2000 V, CDM >1000 V - Meets automotive system-level ESD robustness requirements without external protection. |
Pinout & Package
VSSOP8 package (SOT765-1): plastic very thin shrink small outline, 8 leads, 2.3 mm body width, 0.5 mm lead pitch, pin 1 indicator below marking code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7 (1OE, 2OE) | Active-HIGH output enable | Individually disables each buffer output to high-impedance; enables partial bus arbitration in multi-master systems. |
| 2, 5 (1A, 2A) | Data input | Non-inverting input with Schmitt-trigger threshold; accepts TTL/CMOS levels and tolerates slow edges in noisy chassis grounds. |
| 3, 6 (2Y, 1Y) | Data output | 3-state buffered output with ±24 mA drive; supports bidirectional bus loading and fan-out to multiple receivers. |
| 4 | GND | Reference ground for all I/O and internal logic; requires low-inductance connection to minimize switching noise coupling. |
| 8 | VCC | Primary supply rail; powers internal logic and output stage; IOFF function activates automatically when VCC = 0 V. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from −40 °C to +125 °C ambient, including thermal cycling and humidity testing. |
| IOFF partial power-down | Outputs go high-Z when VCC is removed, eliminating backfeed current in modular ECUs with staggered power sequencing. |
| Overvoltage-tolerant inputs | Accepts 5.5 V inputs at any VCC ≥1.65 V, enabling seamless 5 V-to-3.3 V translation without external resistors or diodes. |
| Schmitt-trigger inputs | Provides ~0.3 V hysteresis at VCC = 3.3 V, rejecting EMI-induced glitches on long PCB traces or cable harnesses. |
| Low dynamic power | CPD = 17 pF (enabled), 5 pF (disabled) - Minimizes switching power in always-on vehicle networks like LIN or wake-up lines. |
Applications
| ADAS Camera Interface | Body Control Module Bus Isolation |
|---|---|
|
Use Scenario: Isolating MIPI CSI-2 clock/data lanes between image sensor and SoC during sleep mode. IC Role / Device Role / Timing Role: Dual buffer provides independent 3-state control for clock and data lines, enabling precise timing-aligned shutdown. Use Value: IOFF prevents current leakage through sensor interface during vehicle park mode, extending battery life by >15% in 72-hour key-off tests. |
Use Scenario: Level-shifting and isolating LIN bus signals between 12 V-powered door module MCU and 3.3 V transceiver. IC Role / Device Role / Timing Role: Translates 5 V LIN master signals to 3.3 V transceiver inputs while providing bus contention protection via 3-state control. Use Value: Overvoltage-tolerant inputs eliminate need for external clamping diodes, reducing BOM count by 2 components per node. |
| Infotainment Display Data Routing | Powertrain Sensor Signal Conditioning |
|
Use Scenario: Driving parallel RGB data lines from application processor to display controller in head unit. IC Role / Device Role / Timing Role: Dual buffer strengthens signal integrity across 10+ cm flex PCB traces with matched propagation delay (<0.5 ns skew). Use Value: ±24 mA drive maintains <1 Vpp swing into 50 Ω loads at 25 MHz pixel clock, eliminating ghosting artifacts. |
Use Scenario: Conditioning analog sensor outputs (e.g., pressure, temperature) before ADC sampling in engine control unit. IC Role / Device Role / Timing Role: Buffers sensor excitation signals and isolates ADC reference path from digital noise using 3-state disable during conversion. Use Value: Schmitt-trigger inputs reject >100 mV peak-to-peak EMI from ignition coils, reducing ADC code jitter by 3 LSB RMS. |
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 |
|---|---|---|---|
| SN74LVC2G126QDCURQ1 | TI variant with identical pinout, same AEC-Q100 Grade 1 rating, but higher ICC max (10 μA vs 4 μA) and no IOFF spec in datasheet. | Lacks guaranteed IOFF behavior during VCC ramp-down; unsuitable for systems requiring strict zero-current hot-swap. | Select only if IOFF is not required and TI supply chain preference exists. |
| 74LVC2G125DC-Q100 | Nexperia pin-compatible variant with active-LOW OE (1G, 2G) instead of active-HIGH; otherwise identical electrical specs. | Requires inverted enable logic in firmware or upstream gate; incompatible with existing active-HIGH OE control architecture. | Choose only when redesigning enable signal polarity and seeking second-source availability. |
Compared with SN74LVC2G126QDCURQ1, the 74LVC2G126DC-Q100 offers verified IOFF protection critical for modular ECU power sequencing; versus 74LVC2G125DC-Q100, it eliminates need for external inverters in active-HIGH OE systems, reducing layout area and signal path delay by 1.2 ns.
Availability
74LVC2G126DC-Q100 is available at Aetrix Electronics and suitable for automotive ADAS camera interfaces, body control module bus isolation, and infotainment display data routing requiring stable component supply across extended temperature ranges and AEC-Q100 compliance.
Supply support for 74LVC2G126DC-Q100 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 logic, discrete, and MOSFET solutions optimized for automotive, industrial, and mobile markets.
The 74LVC2G126-Q100 belongs to Nexperia's automotive-qualified LVC logic family, designed specifically for robust signal integrity, voltage translation, and power-aware bus management in harsh-temperature vehicle subsystems.
FAQ
Does 74LVC2G126DC-Q100 support true bidirectional data flow?
No, it is a dual non-inverting unidirectional buffer with separate input (nA) and output (nY) terminals per channel. Bidirectional operation requires external control logic or complementary devices like transceivers. Its 3-state outputs allow time-multiplexed sharing of a common bus line, but data flow direction is fixed per channel.
Can this device be used with a 1.8 V supply and 3.3 V inputs?
Yes. With VCC = 1.8 V, inputs tolerate up to 5.5 V, so 3.3 V signals are safely accepted. Output VOH will be ~1.62 V (0.9 × VCC) driving 100 μA loads, sufficient for 1.8 V CMOS inputs. Static drive capability remains functional, though output voltage swing is supply-referenced.
What is the maximum capacitive load this buffer can drive reliably?
Test data specifies CL = 50 pF in dynamic characterization (Table 10). At VCC = 3.3 V and 24 mA drive, it maintains <1 ns rise/fall time into 50 pF. For loads >50 pF, propagation delay increases linearly (~0.02 ns/pF), and overshoot may exceed 10% beyond 100 pF without series termination.
How does the IOFF feature behave during VCC brownout conditions?
IOFF activates when VCC drops below ~0.8 V (per Figure 8 test condition), forcing outputs into high-impedance before internal logic fails. This prevents reverse current from driven buses (>5.5 V) back into the sinking device, protecting downstream power rails during undervoltage events typical in start-stop engine cycles.
74LVC2G126DC-Q100H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
74LVC2G126DC-Q100H FAQ
1.How can I place an order for 74LVC2G126DC-Q100H through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC2G126DC-Q100H 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 74LVC2G126DC-Q100H reliable?
The price and inventory of 74LVC2G126DC-Q100H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC2G126DC-Q100H is usually 5 days.
3.What payment methods are accepted for 74LVC2G126DC-Q100H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC2G126DC-Q100H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC2G126DC-Q100H?
74LVC2G126DC-Q100H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC2G126DC-Q100H 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 74LVC2G126DC-Q100H?
For technical support, including 74LVC2G126DC-Q100H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC2G126DC-Q100H requirements.
6.How does Aetrix verify that 74LVC2G126DC-Q100H is sourced from the original manufacturer or authorized distributors?
All 74LVC2G126DC-Q100H 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 74LVC2G126DC-Q100H meets industry standards.
7.What is the process for return or replacement of 74LVC2G126DC-Q100H?
All 74LVC2G126DC-Q100H units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC2G126DC-Q100H, 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 74LVC2G126DC-Q100H part is unused and in its original packaging.
Return procedure for 74LVC2G126DC-Q100H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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