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Nexperia USA Inc. 74LVC3G34DC,125
- Part No.:
- 74LVC3G34DC,125
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
74LVC3G34DC,125.pdf
- Description:
- IC BUF NON-INVERT 5.5V 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,253
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Product details
Overview
74LVC3G34DC,125 from Nexperia is a triple non-inverting buffer IC with Schmitt-trigger inputs, designed for level translation between 3.3 V and 5 V logic domains in mixed-voltage systems. It operates from 1.65 V to 5.5 V, delivers ±24 mA output drive at 3.0 V, features IOFF partial power-down protection, and is rated for -40 °C to +125 °C operation in the VSSOP8 (SOT765-1) package.
For engineers reviewing the 74LVC3G34DC,125 datasheet, 74LVC3G34DC,125 pinout, 74LVC3G34DC,125 application, or 74LVC3G34DC,125 equivalent, key selection considerations include its overvoltage-tolerant 5.5 V inputs, sub-5 ns propagation delay across supply ranges, IOFF-enabled backflow current prevention during power sequencing, and compatibility with JEDEC standards JESD8-7/5/C/36.
Technical Context
The device implements three independent CMOS buffer stages, each with Schmitt-trigger input thresholds enabling robust noise immunity and tolerance of slow-rising/falling signals. Its IOFF circuit actively disables outputs when VCC = 0 V, blocking destructive backflow current during hot-insertion or partial system power-down.
All inputs tolerate up to 5.5 V regardless of VCC, allowing direct interfacing with 5 V TTL outputs while powered from 1.65–3.3 V rails. Propagation delay is specified down to 0.5 ns (typical) at 5.0 V and remains ≤5.1 ns (max) at 3.3 V, supporting high-speed signal conditioning in industrial control and portable electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 1.65 V to 5.5 V - Enables single-supply operation across legacy 3.3 V and modern low-power 1.8 V rails, plus interoperability with 5 V systems. |
| Input voltage tolerance | Up to 5.5 V - Allows safe connection to 5 V outputs without external level-shifting components in mixed-voltage designs. |
| Output drive strength | ±24 mA at VCC = 3.0 V - Sufficient to directly drive multiple LVTTL loads or moderate capacitive traces without buffering. |
| Propagation delay | ≤5.1 ns max at VCC = 3.0–3.6 V - Supports >100 MHz signal conditioning in timing-critical paths like clock distribution or data bus isolation. |
| IOFF leakage | ±2 μA max at VCC = 0 V - Ensures negligible current flow through powered-down device, critical for hot-swap and power-gating architectures. |
| Operating temperature | -40 °C to +125 °C - Qualified for under-hood automotive modules, industrial PLCs, and extended-range consumer devices. |
| ESD rating | HBM >2000 V, CDM >1000 V - Meets IEC 61000-4-2 Level 2 requirements for board-level ESD robustness in end-equipment. |
Pinout & Package
VSSOP8 (SOT765-1) package: plastic very thin shrink small outline, 8 leads, 2.3 mm body width, 0.5 mm lead length, pin 1 indicator below marking code 'Y34' in lower-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 6 (1A, 2A, 3A) | Data input | Three independent Schmitt-trigger buffered inputs accepting 0–5.5 V signals regardless of VCC setting. |
| 7, 5, 2 (1Y, 2Y, 3Y) | Data output | Three non-inverting CMOS outputs with rail-to-rail swing and ±24 mA drive capability at 3.0 V. |
| 4 | GND | Ground reference for all internal circuitry and output return path; must be low-impedance for noise immunity. |
| 8 | VCC | Primary supply rail; powers all buffers and enables IOFF logic; decoupling capacitor required within 1 cm. |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range | 1.65–5.5 V operation supports single-rail designs across battery-powered, industrial, and legacy systems. |
| Overvoltage-tolerant inputs | 5.5 V absolute max input voltage allows direct interface with 5 V logic without external resistors or clamps. |
| IOFF partial power-down | Automatic output disable at VCC = 0 V prevents backflow current during hot-plug or multi-rail sequencing. |
| Schmitt-trigger inputs | Hysteresis ≥0.3 V at 3.3 V ensures reliable switching on noisy or slow edges common in sensor interfaces and mechanical switch debouncing. |
| JEDEC compliance | Validated per JESD8-7 (1.65–1.95 V), JESD8-5 (2.3–2.7 V), JESD8C (2.7–3.6 V), and JESD36 (4.5–5.5 V) for interoperability assurance. |
Applications
| Industrial Sensor Interface | USB Peripheral Power Sequencing |
|---|---|
Use Scenario: Isolating analog sensor outputs (e.g., thermistor, pressure transducer) before ADC sampling in noisy factory-floor environments. IC Role / Device Role / Timing Role: Signal conditioning buffer with Schmitt-trigger inputs rejecting EMI-induced glitches on long PCB traces. Use Value: Eliminates need for external RC filters or dedicated comparator circuits due to built-in hysteresis and 5.5 V input tolerance. | Use Scenario: Enabling/disabling USB data lines (D+/D−) during host-controlled power-up of peripheral ICs in embedded USB hubs. IC Role / Device Role / Timing Role: Bidirectional signal isolator activated only when VCC is stable, leveraging IOFF to prevent backfeed during reset. Use Value: Guarantees zero current leakage into unpowered downstream logic, satisfying USB 2.0 suspend-current requirements (<500 μA). |
| Automotive Body Control Module | Portable Medical Device Logic Translation |
Use Scenario: Translating 5 V microcontroller GPIO signals to 3.3 V CAN transceiver control pins in vehicle door modules. IC Role / Device Role / Timing Role: Voltage-level translator with guaranteed timing (tpd ≤4.0 ns at 5 V) for real-time window lock/unlock commands. Use Value: Replaces discrete MOSFET-based translators, reducing BOM count and layout area while maintaining AEC-Q100-relevant thermal margin. | Use Scenario: Interfacing a 1.8 V ultra-low-power MCU with legacy 3.3 V display driver ICs in handheld diagnostic tools. IC Role / Device Role / Timing Role: Single-supply level shifter enabling bidirectional communication without direction-control pins or external biasing. Use Value: Achieves <1 μA static current at 1.8 V, extending battery life beyond 12 hours per charge in Class II medical equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC3G34DCUR | TI part in same VSSOP8 package; identical pinout and function but higher ICC (max 10 μA vs 4 μA) and no IOFF specification. | Lacks IOFF protection - unsuitable for partial power-down scenarios requiring backflow prevention. | Select only if IOFF is not required and TI sourcing preference exists; verify thermal derating curves match Nexperia's SOT765-1 spec. |
| 74AUP3G34DC,125 | Nexperia's ultra-low-power variant; same pinout but reduced drive (±4 mA), lower ICC (0.5 μA), and narrower VCC range (0.8–3.6 V). | Optimized for sub-1 V battery operation; cannot interface with 5 V inputs or drive heavy loads. | Choose for energy-constrained wearable devices where 5 V tolerance and high drive are unnecessary. |
Compared with SN74LVC3G34DCUR, the 74LVC3G34DC,125 offers superior power-down safety via IOFF and lower quiescent current; versus 74AUP3G34DC,125, it trades ultra-low static power for broader voltage interoperability and stronger output drive-critical for mixed-rail industrial systems.
Availability
74LVC3G34DC,125 is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB peripheral power sequencing, automotive body control modules, and portable medical device logic translation requiring stable component supply across extended temperature ranges.
Supply support for 74LVC3G34DC,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 rooted in process technology leadership and automotive-grade quality systems.
The 74LVC series targets general-purpose logic applications demanding wide supply flexibility, robust ESD performance, and seamless integration into mixed-voltage digital systems-from consumer wearables to industrial automation controllers.
FAQ
Does 74LVC3G34DC,125 support true bidirectional signal translation?
No. The 74LVC3G34DC,125 is a unidirectional triple buffer with fixed input (A) and output (Y) terminals. It does not contain internal direction-control logic or bus-switch architecture. For bidirectional level shifting, consider dedicated devices such as the TXB0104 or 74AVCH4T245, which integrate automatic direction sensing or explicit DIR pins.
Can 74LVC3G34DC,125 be used with a 1.2 V supply rail?
No. The minimum recommended VCC is 1.65 V per Table 6. Operation below this violates JEDEC JESD8-7 compliance and risks undefined output behavior, increased propagation delay variation, and potential latch-up. For 1.2 V systems, select the 74AUP3G34DC,125 (0.8–3.6 V range) or evaluate application-specific level shifters.
What is the maximum capacitive load the outputs can drive reliably?
The outputs are characterized up to 50 pF load capacitance (Table 10), with tpd tested at 30–50 pF depending on VCC. Driving >50 pF may increase propagation delay nonlinearly and risk overshoot/ringing; for heavier loads, add series termination or use a buffer with higher drive strength like the 74LVC2G34.
Is the 74LVC3G34DC,125 qualified for automotive applications per AEC-Q100?
No. While rated for -40 °C to +125 °C, the 74LVC3G34DC,125 is not AEC-Q100 qualified. Nexperia offers the automotive-grade 74LVC3G34GV,125 (SOT765-1) with full AEC-Q100 Grade 2 (-40 °C to +105 °C) qualification and PPAP documentation - required for under-hood or safety-critical vehicle subsystems.
74LVC3G34DC,125 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:
- 3
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- Push-Pull
- 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
74LVC3G34DC,125 FAQ
1.How can I place an order for 74LVC3G34DC,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC3G34DC,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 74LVC3G34DC,125 reliable?
The price and inventory of 74LVC3G34DC,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC3G34DC,125 is usually 5 days.
3.What payment methods are accepted for 74LVC3G34DC,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC3G34DC,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC3G34DC,125?
74LVC3G34DC,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC3G34DC,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 74LVC3G34DC,125?
For technical support, including 74LVC3G34DC,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC3G34DC,125 requirements.
6.How does Aetrix verify that 74LVC3G34DC,125 is sourced from the original manufacturer or authorized distributors?
All 74LVC3G34DC,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 74LVC3G34DC,125 meets industry standards.
7.What is the process for return or replacement of 74LVC3G34DC,125?
All 74LVC3G34DC,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC3G34DC,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 74LVC3G34DC,125 part is unused and in its original packaging.
Return procedure for 74LVC3G34DC,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVC3G34DC,125 Tags
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