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Nexperia USA Inc. 74LVC3G34GM,125
- Part No.:
- 74LVC3G34GM,125
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 8-XFQFN Exposed Pad
- Datasheet:
-
74LVC3G34GM,125.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 8XQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,180
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Product details
Overview
74LVC3G34GM,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. It features IOFF partial power-down protection, ±24 mA output drive at 3.0 V, and operates across 1.65 V–5.5 V supply. Used in mixed-voltage I/O interfacing on industrial control PCBs and sensor signal conditioning modules.
For engineers reviewing the 74LVC3G3G34GM,125 datasheet, 74LVC3G34GM,125 pinout, 74LVC3G34GM,125 application, or 74LVC3G34GM,125 equivalent, key selection criteria include input overvoltage tolerance to 5.5 V, guaranteed operation from –40 °C to +125 °C, IOFF-enabled backflow current prevention during power sequencing, and propagation delay as low as 1.9 ns at 5 V.
Technical Context
This device implements three independent CMOS buffer gates with hysteresis-equipped Schmitt-trigger inputs, enabling robust noise immunity against slow-rising signals in noisy industrial environments. Each gate provides true non-inverting logic transfer with rail-to-rail output swing referenced to VCC.
The IOFF circuit activates automatically when VCC = 0 V, forcing all outputs into high-impedance state regardless of input voltage - critical for hot-swap and multi-rail power sequencing. Input clamping diodes allow safe 5.5 V-tolerant operation even when powered from 1.65 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 1.65 V to 5.5 V - supports direct interface with both 1.8 V, 2.5 V, 3.3 V, and 5 V logic families without external level shifters. |
| Input voltage tolerance | Up to 5.5 V - enables use as bidirectional voltage translator in mixed-supply systems without damage or latch-up. |
| Output drive strength | ±24 mA at VCC = 3.0 V - sufficient to drive multiple LVC loads or moderate capacitive traces (≤30 pF) with clean edges. |
| Propagation delay | 1.9 ns typical at VCC = 5.0 V - ensures timing-critical signal buffering in high-speed digital interfaces like SPI clock lines. |
| IOFF leakage current | ±2 μA max at VCC = 0 V - prevents destructive back-current flow during partial system power-down or board hot-plug events. |
| Operating temperature | –40 °C to +125 °C - qualified for under-hood automotive modules, industrial PLC I/O cards, and telecom base station control logic. |
| ESD rating | HBM > 2000 V, CDM > 1000 V - exceeds JEDEC JS-001/JS-002 Class 2/C3 requirements for robust handling in automated assembly lines. |
Pinout & Package
XQFN8 package (SOT902-2): plastic ultra-thin quad flat no-lead; 8 terminals; body size 1.4 × 1.2 × 0.45 mm; wettable flank leads; thermal pad exposed on bottom.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A | Input of first buffer - accepts 3.3 V or 5 V logic; Schmitt-trigger hysteresis improves noise margin on long PCB traces. |
| 2 | 2Y | Output of second buffer - actively driven high/low; IOFF disables output when VCC = 0 V. |
| 3 | 3A | Input of third buffer - electrically identical to 1A and 2A; supports independent signal routing. |
| 4 | GND | Digital ground reference - must be connected to system ground plane; serves as return path for all I/O currents. |
| 5 | 3Y | Output of third buffer - same drive capability and timing as 1Y and 2Y; shares VCC and GND rails. |
| 6 | 2A | Input of second buffer - decoupled from other inputs; allows three independent signal paths in one footprint. |
| 7 | 1Y | Output of first buffer - non-inverting output; VOH ≥ 2.3 V and VOL ≤ 0.55 V at 24 mA load (VCC = 3.0 V). |
| 8 | VCC | Positive supply rail - powers all three buffers; IOFF circuit monitors this node to enable/disable outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range | 1.65 V–5.5 V operation enables single part number across 1.8 V microcontrollers, 3.3 V FPGAs, and legacy 5 V peripherals. |
| IOFF partial power-down | Automatic high-Z output state when VCC = 0 V eliminates need for external isolation switches in multi-rail power architectures. |
| Schmitt-trigger inputs | Hysteresis ≥ 0.3 V (typ.) rejects noise spikes and stabilizes outputs on slow-switching sensors or mechanical switch inputs. |
| Overvoltage tolerant inputs | Withstands 5.5 V inputs while powered from 1.65 V - eliminates external clamping diodes in mixed-voltage interconnects. |
| Low dynamic power | CPD = 14 pF - limits switching power dissipation to <100 μW per gate at 10 MHz, supporting battery-powered edge nodes. |
Applications
| Industrial Sensor Interface | Multi-Rail FPGA I/O Expansion |
|---|---|
Use Scenario: Buffering analog-to-digital converter (ADC) status flags and control lines in programmable logic controllers (PLCs) operating across 3.3 V and 5 V subsystems. IC Role / Device Role / Timing Role: Level-translating buffer ensuring clean, noise-immune signal delivery from 5 V sensor modules to 3.3 V FPGA configuration logic. Use Value: Schmitt-trigger inputs suppress EMI-induced glitches on factory-floor wiring; IOFF prevents backfeed during firmware update resets. |
Use Scenario: Driving configuration pins and JTAG boundary-scan signals on Xilinx Artix-7 FPGAs where core voltage (1.0 V) and I/O bank voltages (1.8 V/3.3 V) differ. IC Role / Device Role / Timing Role: Signal integrity-preserving buffer isolating FPGA I/O banks from shared control bus noise and voltage domain mismatches. Use Value: 1.9 ns propagation delay meets setup/hold timing for 100 MHz JTAG clocks; ±24 mA drive sustains signal integrity across 5 cm PCB traces. |
| Automotive Body Control Module | Medical Diagnostic Equipment I/O |
Use Scenario: Interfacing LIN transceiver status outputs (5 V) with 3.3 V microcontroller GPIOs in door module ECUs requiring AEC-Q100-compliant components. IC Role / Device Role / Timing Role: Voltage-domain translator and noise filter for fault-reporting lines subject to automotive load dump transients. Use Value: –40 °C to +125 °C rating matches under-hood thermal requirements; 5.5 V input tolerance survives ISO 7637-2 pulse 5a surges without clamping. |
Use Scenario: Isolating patient-monitoring front-end analog switches and LED indicators from 3.3 V ARM Cortex-M4 host processor in portable ultrasound devices. IC Role / Device Role / Timing Role: Safe, low-power signal repeater enabling hot-plug detection and LED driver enable sequencing during battery-swapping events. Use Value: IOFF blocks reverse current during battery insertion; 2.5 μA max ICC at 1.65 V extends runtime in battery-backed standby mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC3G34DCUR | Same logic function and pinout (VSSOP8), but rated only to +85 °C; lower ESD rating (HBM 2000 V vs. 2000+ V). | Not suitable for under-hood automotive or extended-temperature industrial deployments. | Select only if ambient temperature stays below 85 °C and cost sensitivity outweighs thermal margin. |
| 74AUP3G34GM,125 | Ultra-low-power variant (ICC < 0.5 μA); slower max speed (tpd = 6.3 ns @ 3.0 V); identical IOFF and overvoltage specs. | Better for always-on battery sensors; unsuitable for >25 MHz clock distribution or fast data strobes. | Choose when sub-μA static current is mandatory and timing budget allows ≥3× longer propagation delay. |
Compared with SN74LVC3G34DCUR, the 74LVC3G34GM,125 delivers extended temperature support and higher ESD robustness for harsh environments; versus 74AUP3G34GM,125, it trades 3× higher speed for ~5× higher static current - making it optimal for timing-critical industrial control over ultra-low-power sensing.
Availability
74LVC3G34GM,125 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and mixed-voltage designs.
Supply support for 74LVC3G34GM,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 delivering high-performance logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in high-volume electronics.
The 74LVC3G34 belongs to Nexperia's LVC logic family - engineered for low-voltage operation, high noise immunity, and seamless interoperability across heterogeneous voltage domains in industrial and automotive control systems.
FAQ
What is the maximum input voltage the 74LVC3G34GM,125 can tolerate when powered from 1.65 V?
The device tolerates inputs up to 5.5 V regardless of VCC level due to integrated input clamping diodes and overvoltage-tolerant input structure. This allows safe interfacing with 5 V signals while operating from 1.65 V, eliminating external level-shifting components in mixed-supply systems.
Does the 74LVC3G34GM,125 support hot-swap or partial power-down scenarios?
Yes - its IOFF circuitry automatically places all outputs in high-impedance state when VCC drops to 0 V, preventing damaging back-current flow through powered-down sections. This feature is validated per JEDEC JESD78 and supports reliable hot-plug operation in modular systems.
How does the Schmitt-trigger input improve performance in noisy environments?
Schmitt-trigger inputs provide hysteresis (typically ≥0.3 V), meaning the rising and falling input thresholds differ. This prevents multiple output transitions caused by slow or noisy input edges - critical for reliable operation with mechanical switches, long cables, or unshielded sensor outputs in industrial settings.
Can the 74LVC3G34GM,125 drive standard TTL loads directly?
Yes - it complies with JEDEC standards JESD8-7, JESD8-5, JESD8C, and JESD36, and its output voltage levels (VOH ≥ 2.3 V, VOL ≤ 0.55 V at 24 mA) meet TTL input thresholds across its full 1.65 V–5.5 V supply range, enabling direct interface without pull-up resistors or translators.
74LVC3G34GM,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- 8-XFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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-XQFN (1.6x1.6)
74LVC3G34GM,125 FAQ
1.How can I place an order for 74LVC3G34GM,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC3G34GM,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 74LVC3G34GM,125 reliable?
The price and inventory of 74LVC3G34GM,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC3G34GM,125 is usually 5 days.
3.What payment methods are accepted for 74LVC3G34GM,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC3G34GM,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC3G34GM,125?
74LVC3G34GM,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC3G34GM,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 74LVC3G34GM,125?
For technical support, including 74LVC3G34GM,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC3G34GM,125 requirements.
6.How does Aetrix verify that 74LVC3G34GM,125 is sourced from the original manufacturer or authorized distributors?
All 74LVC3G34GM,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 74LVC3G34GM,125 meets industry standards.
7.What is the process for return or replacement of 74LVC3G34GM,125?
All 74LVC3G34GM,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC3G34GM,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 74LVC3G34GM,125 part is unused and in its original packaging.
Return procedure for 74LVC3G34GM,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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