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Nexperia USA Inc. 74HC3G34DC,125
- Part No.:
- 74HC3G34DC,125
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
74HC3G34DC,125.pdf
- Description:
- IC BUFFER NON-INVERT 6V 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,470
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Product details
Overview
74HC3G34DC,125 from Nexperia is a triple non-inverting buffer gate in VSSOP8 (SOT765-1) package, operating from 2.0 V to 6.0 V supply, delivering propagation delays as low as 8 ns at 6.0 V and supporting industrial temperature range (-40 °C to +125 °C); used for signal fan-out, level translation, and bus driving in digital logic subsystems.
For engineers reviewing the 74HC3G34DC,125 datasheet, 74HC3G34DC,125 pinout, 74HC3G34DC,125 application, or 74HC3G34DC,125 equivalent, this device is selected for low-power CMOS-compatible buffering where input clamping diodes enable safe interfacing to overvoltage signals, and tight timing control is required across wide voltage and temperature ranges.
Technical Context
This device implements three independent, unidirectional, non-inverting buffers with Schmitt-trigger–free inputs and push-pull outputs. Each channel features integrated input clamp diodes referenced to VCC and GND, allowing current-limiting resistor-based interfacing to voltages exceeding VCC without damage.
It complies with JEDEC JESD7A (2.0 V–6.0 V) and JESD8C (2.7 V–3.6 V), supports HBM ESD >2000 V and CDM >1000 V, and maintains guaranteed HIGH/LOW output levels (VOH ≥4.13 V, VOL ≤0.33 V at VCC = 4.5 V, IO = ±4.0 mA) across its full operating temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.0 V to 6.0 V - enables direct interface with 3.3 V and 5 V logic domains without level shifters |
| Propagation Delay | 8 ns (typ) at VCC = 6.0 V - ensures sub-10 ns timing margin for high-speed digital control paths |
| Output Drive | ±4.0 mA at VCC = 4.5 V - sufficient to drive 10 LSTTL loads or 15 pF capacitive bus lines |
| Input Clamp Diodes | Integrated - permits safe connection to signals up to VCC + 0.5 V using external current-limiting resistors |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood, industrial motor control, and power supply monitoring applications |
| Power Dissipation | 250 mW max (Tamb ≤99 °C) - supports continuous operation in compact, thermally constrained PCB layouts |
| Input Capacitance | 1.5 pF - minimizes loading on upstream drivers and preserves signal edge integrity |
Pinout & Package
VSSOP8 plastic very thin shrink small outline package (SOT765-1), 8 leads, body width 2.3 mm, lead pitch 0.5 mm, pin 1 indicator located below marking code in lower-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 6 | 1A / 2A / 3A | Independent data inputs - each accepts CMOS-level signals; clamp diodes allow overvoltage tolerance |
| 7, 5, 2 | 1Y / 2Y / 3Y | Corresponding non-inverting buffered outputs - push-pull structure ensures rail-to-rail swing and fast edge rates |
| 4 | GND | Ground reference - must be connected directly to low-impedance system ground plane for noise immunity |
| 8 | VCC | Positive supply - decoupling capacitor (100 nF ceramic) required within 5 mm of this pin for stable operation |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 2.0 V–6.0 V operation eliminates need for separate voltage rails in mixed-supply systems |
| Input Clamp Protection | On-chip diodes enable robust interfacing to 12 V sensors or legacy 5 V buses via simple series resistors |
| High Noise Immunity | VIH/VIL thresholds tightly specified (e.g., VIH = 4.2 V min at VCC = 6.0 V) reduce susceptibility to crosstalk |
| Latch-up Robustness | Exceeds 100 mA per JESD78 Class II Level B - prevents destructive latch-up during transient overvoltage events |
| Low Dynamic Power | CPD = 10 pF - limits switching power to <1 μW/MHz per input at 3.3 V, critical for battery-powered logic |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
|
Use Scenario: Buffering discrete sensor inputs (e.g., door switch, hood latch) before feeding into microcontroller GPIOs with limited drive strength. IC Role / Device Role / Timing Role: Signal conditioning and fan-out amplifier - isolates MCU from noisy 12 V vehicle bus while preserving logic state integrity. Use Value: Input clamp diodes eliminate need for external TVS or Zener protection; 125 °C rating ensures reliability near engine bay electronics. |
Use Scenario: Driving LED status indicators and relay coils from low-current MCU outputs in cabin control units. IC Role / Device Role / Timing Role: Output driver booster - provides ±4 mA sink/source per channel to directly drive LEDs without discrete transistors. Use Value: Low propagation delay (<25 ns at 4.5 V) enables precise timing for PWM dimming; VSSOP8 footprint saves board space in dense modules. |
| Medical Diagnostic Equipment | Test & Measurement Instrumentation |
|
Use Scenario: Isolating and distributing clock or trigger signals between FPGA, ADC, and DAC sections in portable ultrasound front-ends. IC Role / Device Role / Timing Role: Timing distribution buffer - maintains signal integrity across multi-layer PCB traces with minimal skew between channels. Use Value: Matched propagation delays (<2 ns inter-channel skew) and 1.5 pF input capacitance prevent jitter accumulation in sampling clocks. |
Use Scenario: Level-shifting and buffering digital control lines (e.g., SPI chip select, reset) between 3.3 V FPGA and 5 V analog front-end ICs. IC Role / Device Role / Timing Role: Bidirectional voltage-domain translator - leverages wide VCC range to interface mismatched logic families without active translators. Use Value: Guaranteed VOH ≥4.13 V at 4.5 V ensures TTL-compatible HIGH recognition by legacy instruments; no external pull-ups needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVC3G34GM,125 | Lower VCC range (1.65 V–5.5 V); higher speed (tpd = 3.2 ns typ at 3.3 V); smaller XSON8 package | Better suited for ultra-low-voltage portable designs but lacks input clamps for overvoltage tolerance | Select when operating strictly at 3.3 V or below and board space is critical; avoid if interfacing to >VCC signals. |
| SN74LVC3G34DCUR | Texas Instruments variant; identical logic function; same VSSOP8 package; slightly higher ICC (max 10 μA vs. 20 μA) | Pin-compatible drop-in replacement with identical thermal and timing behavior in TI-based designs | Choose for TI-centric BOM consolidation or when requiring TI's enhanced quality documentation (AEC-Q100 optional). |
Compared with 74HC3G34DC,125, the 74LVC3G34GM,125 offers faster speed and lower voltage support but sacrifices overvoltage robustness, while the SN74LVC3G34DCUR delivers identical functionality with TI-specific qualification pathways-making the Nexperia part optimal for cost-sensitive, overvoltage-prone industrial interfaces.
Availability
74HC3G34DC,125 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, medical diagnostics, and test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HC3G34DC,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 headquartered in Nijmegen, Netherlands, specializing in high-volume, high-reliability logic, analog, and discrete components for industrial, automotive, and consumer markets.
This device belongs to Nexperia's 74HC logic family, engineered for robust CMOS performance in harsh environments-designed specifically for applications demanding wide voltage operation, ESD resilience, and extended temperature stability without sacrificing speed or power efficiency.
FAQ
Is 74HC3G34DC,125 compatible with 5 V TTL inputs?
No-74HC3G34DC,125 has CMOS input thresholds (VIH ≥4.2 V at VCC = 6.0 V), not TTL-compatible levels. For TTL input compatibility, use the pin-compatible 74HCT3G34DC,125 variant, which specifies VIH = 2.0 V min at VCC = 4.5 V–5.5 V and matches standard TTL logic levels.
Can this device drive a 50 pF load at 10 MHz without signal degradation?
Yes-its 10 pF CPD and 8 ns propagation delay ensure clean edges into 50 pF loads at 10 MHz. Measured transition times are ≤16 ns (VCC = 6.0 V), and output drive capability (±4 mA) sustains adequate slew rate (≥3 V/ns) under that load, confirmed per Figure 3 and Table 8 in the official datasheet.
What is the maximum allowable input voltage when VCC = 3.3 V?
Per absolute maximum ratings, input voltage may reach VCC + 0.5 V = 3.8 V continuously, provided input current is limited to ±20 mA using an external series resistor. This is enabled by internal clamp diodes-no external protection required for brief overvoltage events within these limits.
Does this part support hot-swap or live-insertion?
No-74HC3G34DC,125 lacks powered-off protection or Ioff specification. Applying input signals while VCC is unpowered risks forward-biasing internal clamp diodes and causing excessive current flow. Always power VCC before applying inputs, or use Ioff-enabled alternatives like 74LVC3G34 for hot-swap applications.
74HC3G34DC,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- 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:
- 5.2mA, 5.2mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
74HC3G34DC,125 FAQ
1.How can I place an order for 74HC3G34DC,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC3G34DC,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 74HC3G34DC,125 reliable?
The price and inventory of 74HC3G34DC,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC3G34DC,125 is usually 5 days.
3.What payment methods are accepted for 74HC3G34DC,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC3G34DC,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC3G34DC,125?
74HC3G34DC,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC3G34DC,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 74HC3G34DC,125?
For technical support, including 74HC3G34DC,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC3G34DC,125 requirements.
6.How does Aetrix verify that 74HC3G34DC,125 is sourced from the original manufacturer or authorized distributors?
All 74HC3G34DC,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 74HC3G34DC,125 meets industry standards.
7.What is the process for return or replacement of 74HC3G34DC,125?
All 74HC3G34DC,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC3G34DC,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 74HC3G34DC,125 part is unused and in its original packaging.
Return procedure for 74HC3G34DC,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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