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Nexperia USA Inc. 74HC3G34DC-Q100H
- Part No.:
- 74HC3G34DC-Q100H
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
74HC3G34DC-Q100H.pdf
- Description:
- IC BUFFER NON-INVERT 6V 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,374
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Product details
Overview
74HC3G34DC-Q100 from Nexperia is an automotive-grade triple non-inverting buffer IC in VSSOP8 package, operating from 2.0 V to 6.0 V supply, delivering CMOS-level input compatibility, propagation delay as low as 8 ns at 6.0 V, and AEC-Q100 Grade 1 qualification for under-hood engine control and body electronics applications.
For engineers reviewing the 74HC3G34DC-Q100 datasheet, 74HC3G34DC-Q100 pinout, 74HC3G34DC-Q100 application, or 74HC3G34DC-Q100 equivalent, key selection criteria include input voltage thresholds (VIH = 4.2 V min at VCC = 6.0 V), output drive capability (±4.0 mA at 4.5 V), thermal derating (4.9 mW/K above 99 °C), and VSSOP8 footprint compatibility with space-constrained automotive PCB layouts.
Technical Context
This device implements three independent, unidirectional CMOS buffer stages with input clamp diodes enabling safe interfacing to voltages exceeding VCC when used with current-limiting resistors. Each buffer exhibits symmetrical HIGH/LOW output voltage specs (VOH ≥ 4.13 V, VOL ≤ 0.33 V at IO = ±4.0 mA, VCC = 4.5 V) and supports rail-to-rail input logic levels.
Dynamic performance is characterized by propagation delay (tpd) of 8–25 ns across 2.0–6.0 V supply range and transition time (tt) as low as 5 ns at 6.0 V, with power dissipation capacitance (CPD) fixed at 10 pF - enabling accurate dynamic power estimation using PD = CPD × VCC² × fi × N.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V - supports wide-input automotive battery systems including cold-crank (≈6.0 V) and deep-discharge (≈2.0 V) conditions. |
| Propagation Delay (tpd) | 8 ns typical at VCC = 6.0 V - enables timing-critical signal buffering in CAN/LIN transceiver interface paths and sensor signal conditioning chains. |
| Output Drive Current | ±4.0 mA at VCC = 4.5 V - sufficient to directly drive multiple 74HC inputs or small capacitive loads (<50 pF) without external buffers. |
| Input Thresholds (VIH/VIL) | VIH = 4.2 V min, VIL = 1.8 V max at VCC = 6.0 V - ensures robust noise margin (>1.2 V) against EMI in 12 V automotive environments. |
| Operating Temperature | -40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood placement in powertrain and chassis modules. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - meets automotive system-level ESD immunity requirements without additional protection circuitry. |
| Power Dissipation Cap. | CPD = 10 pF - allows precise dynamic power calculation for thermal budgeting in sealed ECUs with limited airflow. |
Pinout & Package
VSSOP8 plastic very thin shrink small outline package (SOT765-1), 8-lead, body width 2.3 mm, lead pitch 0.65 mm, pin 1 indicator located below marking code 'P34' 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 permit overvoltage tolerance with series resistors. |
| 2, 5, 7 | 2Y / 3Y / 1Y | Corresponding non-inverting buffered outputs - routed to downstream logic or analog interface circuits with controlled rise/fall times. |
| 4 | GND | Ground reference (0 V) - must be low-impedance connection to minimize ground bounce in multi-buffer switching events. |
| 8 | VCC | Primary supply rail - requires local 100 nF ceramic decoupling within 3 mm to suppress high-frequency supply noise. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for continuous operation from -40 °C to +125 °C in automotive powertrain and chassis systems. |
| Input clamp diodes | Enable safe interface to signals up to VCC + 0.5 V using external current-limiting resistors - eliminates need for discrete clamping networks. |
| CMOS-level input compatibility | VIH ≥ 70% VCC ensures reliable recognition of microcontroller GPIO outputs and sensor digital signals across full supply range. |
| Low quiescent current | ICC ≤ 20 μA per input at VCC = 6.0 V - critical for always-on modules (e.g., door module wake-up logic) minimizing standby power draw. |
| High noise immunity | Input hysteresis not specified, but VIH–VIL margin ≥2.4 V at VCC = 6.0 V provides inherent resilience against conducted EMI on PCB traces. |
Applications
| Engine Control Unit Signal Conditioning | Body Control Module I/O Expansion |
|---|---|
Use Scenario: Buffering crankshaft position sensor pulses before feeding into MCU timer capture input. IC Role / Device Role / Timing Role: Signal integrity preservation and fan-out amplification for TTL/CMOS-compatible timing signals. Use Value: 8 ns propagation delay ensures sub-microsecond timing accuracy required for 10,000 RPM engine speed measurement. |
Use Scenario: Isolating and driving multiple door lock actuator enable lines from a single microcontroller port. IC Role / Device Role / Timing Role: Level-shifting and current gain for MCU GPIO pins driving inductive loads via external drivers. Use Value: ±4.0 mA output drive supports direct connection to gate inputs of discrete MOSFETs controlling 12 V actuators. |
| Automotive LIN Bus Interface Logic | Instrument Cluster Display Backlight Control |
Use Scenario: Conditioning LIN transceiver TX/RX signals between MCU UART and physical layer transceiver. IC Role / Device Role / Timing Role: Bidirectional signal buffering with precise edge control to meet LIN physical layer timing tolerances. Use Value: 5 ns transition time (tt) ensures clean edges meeting LIN specification rise/fall time limits (≤25 ns). |
Use Scenario: Enabling PWM dimming signals from MCU to LED driver ICs in TFT backlight subsystems. IC Role / Device Role / Timing Role: Noise-immune signal transmission across noisy instrument panel harnesses. Use Value: 2.4 V input noise margin prevents false triggering from alternator ripple and ignition transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT3G34DC-Q100 | TTL-compatible inputs (VIH = 2.0 V min at VCC = 4.5 V), slightly higher tpd (10 ns typ at 4.5 V) | Better suited for legacy MCU interfaces with weak pull-ups or open-collector outputs | Select when interfacing to older 5 V TTL logic families or microcontrollers lacking strong CMOS drive. |
| SN74LVC3G34DCUR | Lower VCC range (1.65–5.5 V), higher drive (±24 mA), non-automotive grade (no AEC-Q100) | Targeted at consumer/portable electronics, not qualified for automotive temperature or reliability stress tests | Use only in non-automotive designs where cost or drive strength outweighs qualification requirements. |
Compared with 74HC3G34DC-Q100, the 74HCT3G34DC-Q100 offers easier interfacing to legacy 5 V logic but sacrifices some speed and noise margin, while the SN74LVC3G34DCUR delivers superior drive and lower voltage support but lacks AEC-Q100 validation - making the HC variant optimal for new automotive designs requiring robustness and timing precision.
Availability
74HC3G34DC-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, and instrument cluster electronics requiring stable component supply across automotive production lifecycles.
Supply support for 74HC3G34DC-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 specializing in high-performance, high-reliability standard logic, analog, and power devices, with core R&D in Nijmegen, Netherlands.
This part belongs to Nexperia's automotive-qualified 74HC logic family, designed specifically for signal integrity, noise resilience, and thermal stability in harsh-temperature vehicle subsystems.
FAQ
What is the maximum allowable input voltage when VCC = 5.0 V?
The absolute maximum input voltage is VCC + 0.5 V = 5.5 V, enabled by internal clamp diodes. However, sustained operation above VCC requires external current-limiting resistors to restrict IIK to ±20 mA per input, as defined in Table 5 of the datasheet.
Can 74HC3G34DC-Q100 drive a 50 pF load at 10 MHz without signal degradation?
Yes - with CPD = 10 pF and typical tpd = 9 ns at 4.5 V, the device maintains clean edges into 50 pF loads. Dynamic power at 10 MHz is PD ≈ 2.02 mW (using PD = CPD × VCC² × fi × N), well within its 250 mW Ptot limit at 25 °C ambient.
Is pin 1 orientation consistent between SOT765-1 (VSSOP8) and SOT505-2 (TSSOP8) packages?
Yes - both packages locate pin 1 in the lower-left corner beneath the marking code ('P34' or 'H34'), with identical pin numbering and functional assignment (1A, VCC, 3Y, 1Y, 2A, 3A, GND, 2Y), enabling direct PCB footprint reuse across package variants.
Does this device support hot-swap or live-insertion in automotive modules?
No - the datasheet does not specify hot-swap capability. Input clamp diodes protect against overvoltage but do not guarantee safe insertion under power; VCC sequencing and GND-first mating are required to avoid latch-up or transient overstress per JESD78 Class II compliance.
74HC3G34DC-Q100H 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
74HC3G34DC-Q100H FAQ
1.How can I place an order for 74HC3G34DC-Q100H through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC3G34DC-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 74HC3G34DC-Q100H reliable?
The price and inventory of 74HC3G34DC-Q100H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC3G34DC-Q100H is usually 5 days.
3.What payment methods are accepted for 74HC3G34DC-Q100H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC3G34DC-Q100H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC3G34DC-Q100H?
74HC3G34DC-Q100H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC3G34DC-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 74HC3G34DC-Q100H?
For technical support, including 74HC3G34DC-Q100H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC3G34DC-Q100H requirements.
6.How does Aetrix verify that 74HC3G34DC-Q100H is sourced from the original manufacturer or authorized distributors?
All 74HC3G34DC-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 74HC3G34DC-Q100H meets industry standards.
7.What is the process for return or replacement of 74HC3G34DC-Q100H?
All 74HC3G34DC-Q100H units undergo pre-shipment inspection (PSI). If there is an issue with 74HC3G34DC-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 74HC3G34DC-Q100H part is unused and in its original packaging.
Return procedure for 74HC3G34DC-Q100H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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