My Inquiry
My Account
Nexperia USA Inc. 74LVC2G126DP,125
- Part No.:
- 74LVC2G126DP,125
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
74LVC2G126DP,125.pdf
- Description:
- IC BUF NON-INVERT 5.5V 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,575
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74LVC2G126DP,125 from Nexperia is a dual 3-state bus buffer/line driver with independent output enable inputs (1OE, 2OE), 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, Schmitt-trigger inputs for noise immunity, and IOFF partial power-down protection. It is used in bidirectional data bus interfacing in industrial control modules and low-power portable instrumentation.
For engineers reviewing the 74LVC2G126DP,125 datasheet, 74LVC2G126DP,125 pinout, 74LVC2G126DP,125 application, or 74LVC2G126DP,125 equivalent, key selection criteria include its dual-channel 3-state buffering capability, wide VCC range (1.65–5.5 V), overvoltage-tolerant inputs (to 5.5 V), guaranteed operation from –40 °C to +125 °C, and TSSOP8 package compatibility with high-density PCB layouts.
Technical Context
This device implements two independent non-inverting buffers, each with active-HIGH 3-state control (nOE), enabling bidirectional bus isolation. Each channel supports TTL-level input compatibility and exhibits Schmitt-trigger hysteresis (typ. 0.3 V at VCC = 3.3 V) to tolerate slow-rising signals.
The IOFF circuit ensures outputs enter high-impedance state when VCC = 0 V, preventing backflow current during partial power-down-critical in hot-swap and multi-rail power sequencing applications. Propagation delay is 2.4 ns (typ.) at VCC = 3.3 V, with enable/disable times under 4 ns across full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage (VCC) | 1.65 V to 5.5 V - enables direct interface between 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains |
| Output drive strength | ±24 mA at VCC = 3.0 V - sufficient to drive 50 Ω transmission lines or multiple CMOS loads |
| Input voltage tolerance | Up to 5.5 V - allows 5 V inputs to be safely applied while VCC = 3.3 V or lower |
| Operating temperature | –40 °C to +125 °C - qualified for extended industrial and under-hood automotive auxiliary circuits |
| Propagation delay (tpd) | 2.4 ns (typ.) at VCC = 3.3 V - supports >200 MHz data rates in point-to-point buffered paths |
| IOFF leakage current | ±2 μA max at VCC = 0 V - limits backfeed current during system sleep or rail sequencing |
| ESD rating (HBM) | >2000 V - meets JEDEC JS-001 Class 2, reducing need for external protection in board-level ESD zones |
Pinout & Package
TSSOP8 package (SOT505-2): plastic thin shrink small outline, 8-lead, 3 mm body width, 0.65 mm pitch, 0.5 mm lead length, 0.35 mm profile - optimized for automated SMT assembly and thermal relief in compact designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (1OE) | Channel 1 output enable | Active-HIGH control: drives 1Y to high-Z when LOW; enables non-inverting pass-through of 1A when HIGH |
| 2 (1A) | Channel 1 data input | CMOS-compatible input with Schmitt-trigger hysteresis - rejects noise on slow-rising control or status lines |
| 3 (2Y) | Channel 2 data output | 3-state output capable of sourcing/sinking ±24 mA - directly interfaces with 50 Ω trace or 10 pF load |
| 4 (GND) | Ground reference | Primary return path for both channels; must be low-inductance connection to minimize ground bounce |
| 5 (2A) | Channel 2 data input | Independent of Channel 1 - supports asynchronous dual-bus control (e.g., I²C/SPI level-shifting with separate enables) |
| 6 (1Y) | Channel 1 data output | Electrically isolated from 2Y - allows independent bus loading and timing control per channel |
| 7 (2OE) | Channel 2 output enable | Enables/disables 2Y independently - critical for time-multiplexed bus arbitration or fault-isolation schemes |
| 8 (VCC) | Supply voltage | Single-supply input powering both buffers; decoupling capacitor (100 nF) required within 3 mm of this pin |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state buffers | Enables simultaneous or time-multiplexed control of two data paths without cross-talk or contention |
| Wide VCC range (1.65–5.5 V) | Eliminates need for external level shifters in mixed-voltage systems such as FPGA I/O banks interfacing with legacy peripherals |
| Schmitt-trigger inputs | Hysteresis ≥0.3 V at 3.3 V ensures reliable switching on noisy or slow edges (e.g., mechanical switch debouncing or long cable runs) |
| IOFF partial power-down | Prevents destructive back-current flow when VCC is off but buses remain live - essential for hot-plug and modular subsystems |
| Overvoltage-tolerant inputs | Accepts 5.5 V inputs regardless of VCC setting - simplifies design of universal I/O expansion cards with variable supply rails |
Applications
| Industrial PLC I/O Expansion | Portable Test Equipment Bus Interface |
|---|---|
Use Scenario: Isolating microcontroller GPIOs from noisy 24 V fieldbus transceivers and analog sensor multiplexers in modular PLC backplanes. IC Role / Device Role / Timing Role: Dual 3-state buffer provides direction-controlled signal routing and voltage translation between 3.3 V MCU and 5 V/24 V peripheral logic, with independent OE pins enabling time-sliced bus access. Use Value: Eliminates discrete level-shifters and reduces BOM count by 2× per channel; IOFF prevents latch-up during module hot-insertion. | Use Scenario: Interfacing a battery-powered ARM-based DMM controller to multiple calibrated ADC/DAC daughterboards via shared SPI/UART traces. IC Role / Device Role / Timing Role: Acts as a low-power, high-speed bus repeater with independent enable control per instrument channel, ensuring clean signal integrity across 10 cm inter-board traces. Use Value: Schmitt-trigger inputs suppress noise from switching regulators; 2.4 ns tpd maintains <10 ns timing budget for 50 MHz SPI clock distribution. |
| Automotive Body Control Module (BCM) Subsystem | Medical Sensor Hub Data Aggregation |
Use Scenario: Buffering LIN bus diagnostic signals and PWM dimming commands between infotainment head unit (3.3 V) and door module (5 V) in non-safety-critical lighting control. IC Role / Device Role / Timing Role: Voltage-translating buffer with thermal shutdown margin up to +125 °C ambient - deployed in junction box environments near HVAC ducts. Use Value: Overvoltage-tolerant inputs withstand load-dump transients up to 5.5 V; –40 °C to +125 °C rating avoids derating in under-dash locations. | Use Scenario: Consolidating analog front-end signals from 4× patient-worn biosensors (ECG, SpO₂, temperature, respiration) into a single low-noise digital hub before USB transmission. IC Role / Device Role / Timing Role: Provides isolated, glitch-free signal gating between sensor ASICs and hub MCU using synchronized OE control - prevents metastability during sampling transitions. Use Value: ±2 μA IOFF leakage ensures <100 nA standby current per channel - extends battery life in Class II portable medical devices. |
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 | Same logic function and pinout; VSSOP8 (SOT765-1) package, 2.3 mm body width, 0.5 mm pitch - smaller footprint but lower thermal mass | Preferred for ultra-thin handhelds where height <1.0 mm is mandatory; not suitable for manual rework due to no-lead visibility | Select when board space is constrained and thermal dissipation ≤150 mW is acceptable |
| 74AUP2G126GM,132 | Lower static current (0.9 μA vs. 4 μA), higher speed (1.8 ns tpd at 3.3 V), but narrower VCC range (0.8–3.6 V); XQFN8 package | Optimized for sub-1 V IoT SoC interfaces; cannot support 5 V inputs or industrial temperature range | Select only for battery-powered 1.8 V/3.3 V-only systems requiring lowest quiescent power and fastest propagation |
Compared with SN74LVC2G126DBVR and 74AUP2G126GM,132, the 74LVC2G126DP,125 uniquely balances wide voltage translation (1.65–5.5 V), industrial temperature range (–40 °C to +125 °C), and robust TSSOP8 manufacturability - making it the default choice for mixed-rail industrial and automotive auxiliary designs where reliability and ease of assembly outweigh minimal size or power advantages.
Availability
74LVC2G126DP,125 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, portable test equipment bus interface, and automotive BCM subsystems requiring stable component supply across extended temperature and mixed-voltage conditions.
Supply support for 74LVC2G126DP,125 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 manufacturing certified to ISO 9001, IATF 16949, and ISO 14001 standards.
The 74LVC series delivers advanced low-voltage CMOS logic with enhanced noise immunity and power-down safety, designed specifically for industrial automation, automotive body electronics, and portable instrumentation where mixed-voltage interoperability and robustness are critical.
FAQ
Can 74LVC2G126DP,125 be used as a level shifter between 1.8 V and 5 V logic?
Yes - its overvoltage-tolerant inputs accept up to 5.5 V regardless of VCC setting, and its wide 1.65–5.5 V supply range allows operation at 1.8 V while safely receiving 5 V signals. However, output swing is limited to VCC, so 1.8 V VCC yields only 1.8 V HIGH-level output; for true bidirectional 1.8 V ↔ 5 V translation, external pull-up resistors or dedicated level shifters are required.
Does the 74LVC2G126DP,125 support hot-swap operation?
Yes - the IOFF circuit actively disables outputs and limits back-current to ±2 μA when VCC = 0 V, enabling safe insertion/removal in powered-backplane systems. This feature complies with JEDEC JESD78 latch-up immunity (>250 mA) and is validated for use in modular PLC and telecom line-card applications with live backplanes.
What is the maximum capacitive load the 74LVC2G126DP,125 can drive reliably?
The device is characterized up to 50 pF load capacitance (per Table 10), with propagation delay increasing linearly beyond that. At 3.3 V VCC and 50 pF, tpd remains ≤4.3 ns. For loads >50 pF, rise/fall times degrade - use series termination or reduce trace length; the ±24 mA drive strength supports ≤10 cm of 50 Ω microstrip without overshoot when loaded with ≤30 pF.
How does the Schmitt-trigger input improve noise immunity in real-world applications?
Schmitt-trigger inputs provide ~0.3 V hysteresis at 3.3 V, meaning the rising threshold is ~1.8 V and falling threshold is ~1.5 V. This prevents multiple toggles on slow or noisy edges - verified in applications like rotary encoder interfaces and long-wire sensor lines where edge slew rates fall below 10 ns/V, eliminating need for external RC filtering or debounce firmware.
74LVC2G126DP,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
74LVC2G126DP,125 FAQ
1.How can I place an order for 74LVC2G126DP,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC2G126DP,125 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 74LVC2G126DP,125 reliable?
The price and inventory of 74LVC2G126DP,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC2G126DP,125 is usually 5 days.
3.What payment methods are accepted for 74LVC2G126DP,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC2G126DP,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC2G126DP,125?
74LVC2G126DP,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC2G126DP,125 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 74LVC2G126DP,125?
For technical support, including 74LVC2G126DP,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC2G126DP,125 requirements.
6.How does Aetrix verify that 74LVC2G126DP,125 is sourced from the original manufacturer or authorized distributors?
All 74LVC2G126DP,125 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 74LVC2G126DP,125 meets industry standards.
7.What is the process for return or replacement of 74LVC2G126DP,125?
All 74LVC2G126DP,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC2G126DP,125, 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 74LVC2G126DP,125 part is unused and in its original packaging.
Return procedure for 74LVC2G126DP,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVC2G126DP,125 Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
