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Nexperia USA Inc. 74HCT3G34DP-Q100H
- Part No.:
- 74HCT3G34DP-Q100H
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
74HCT3G34DP-Q100H.pdf
- Description:
- IC BUF NON-INVERT 5.5V 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,901
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Product details
Overview
74HCT3G34DP-Q100 from Nexperia is an automotive-qualified triple non-inverting buffer IC with TTL-compatible inputs, 2.0 V to 6.0 V supply range, -40 °C to +125 °C operation, and TSSOP8 (SOT505-2) package. It provides three independent buffered outputs for signal integrity preservation in body control modules, infotainment interconnects, and powertrain sensor interface circuits.
For engineers reviewing the 74HCT3G34DP-Q100 datasheet, 74HCT3G34DP-Q100 pinout, 74HCT3G34DP-Q100 application, or 74HCT3G34DP-Q100 equivalent, key selection criteria include TTL-level input compatibility, AEC-Q100 Grade 1 qualification, propagation delay ≤29 ns at 4.5 V, output drive capability of ±4.0 mA, and integrated input clamp diodes enabling overvoltage-tolerant interfacing.
Technical Context
This device implements three independent CMOS-based non-inverting buffer stages with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), enabling direct interfacing with legacy 5 V logic families. Each channel features Schmitt-trigger-free, rail-to-rail output swing and input clamp diodes for current-limited overvoltage tolerance up to VCC + 0.5 V.
Designed for automotive environments, it meets AEC-Q100 Grade 1 requirements with guaranteed operation from -40 °C to +125 °C, latch-up immunity >100 mA per JESD78 Class II Level B, and ESD robustness (HBM >2000 V, CDM >1000 V). Its static and dynamic characteristics are fully specified across the full temperature and voltage range, not just at 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Triple non-inverting buffer - three independent 1:1 signal repeaters with no inversion or timing skew between channels. |
| Supply Voltage Range | 4.5 V to 5.5 V - supports stable operation across automotive battery variations including cold-crank (4.5 V) and load-dump (5.5 V) conditions. |
| Propagation Delay | 10 ns (typ), 29 ns (max) at VCC = 4.5 V - ensures deterministic timing for sensor data routing and control signal distribution. |
| Output Drive | ±4.0 mA at VCC = 4.5 V - sufficient to drive 50 pF loads with <25 ns transition time, compatible with standard PCB trace capacitance. |
| Input Compatibility | TTL-level - VIH ≥ 2.0 V, VIL ≤ 0.8 V - enables direct connection to MCUs, CAN transceivers, and legacy microcontrollers without level-shifting. |
| AEC-Q100 Grade | Grade 1 (−40 °C to +125 °C) - qualified for under-hood and cabin applications including engine control units and HVAC controllers. |
| ESD Protection | HBM >2000 V, CDM >1000 V - exceeds automotive system-level ESD immunity requirements per ISO 10605. |
Pinout & Package
TSSOP8 plastic thin shrink small outline package (SOT505-2), 8 leads, 3 mm body width, 0.65 mm lead pitch, exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input A1 | First buffer input; accepts TTL-level signals; clamped to GND/VCC via internal diodes for overvoltage resilience. |
| 2 | Output Y3 | Third buffer output; rail-to-rail CMOS swing; capable of sourcing/sinking 4 mA into 50 pF load. |
| 3 | Input A2 | Second buffer input; electrically isolated from A1/A3; identical DC/AC specs to Pin 1. |
| 4 | GND | Ground reference for all I/O and internal circuitry; must be low-impedance connection to minimize noise coupling. |
| 5 | Output Y2 | Second buffer output; matches Y1/Y3 performance; layout symmetry supports matched trace routing. |
| 6 | Input A3 | Third buffer input; shares same input structure as Pins 1 and 3; supports parallel fan-out expansion. |
| 7 | Output Y1 | First buffer output; designated primary output in functional diagrams; identical timing and drive to Y2/Y3. |
| 8 | VCC | Positive supply rail; decoupling capacitor (100 nF ceramic) required within 5 mm for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from −40 °C to +125 °C ambient, including thermal cycling, humidity, and vibration stress testing. |
| Input clamp diodes | Enable safe interface to voltages up to VCC + 0.5 V using external current-limiting resistors - eliminates need for discrete protection components. |
| Low dynamic power dissipation | CPD = 9 pF - limits switching power to <1 μW/MHz per input at 5 V, critical for always-on vehicle subsystems. |
| High noise immunity | Input hysteresis not applied, but CMOS threshold design yields >1.2 V noise margin at VCC = 5 V, exceeding typical automotive EMC requirements. |
| JEDEC-compliant I/O | Meets JESD8C (2.7–3.6 V) and JESD7A (2.0–6.0 V) standards - ensures interoperability with industrial and consumer logic families. |
Applications
| Body Control Module (BCM) | Instrument Cluster Interface |
|---|---|
|
Use Scenario: Signal buffering between LIN transceiver and microcontroller GPIO pins in door module control logic. IC Role / Device Role / Timing Role: Isolates MCU inputs from LIN bus transients while preserving signal edge integrity for accurate frame detection. Use Value: Clamp diodes prevent damage from ±30 V LIN bus faults; 29 ns max propagation delay ensures real-time response to lock/unlock commands. |
Use Scenario: Level-shifting and fan-out buffering of SPI clock/data lines between cluster MCU and TFT display driver IC. IC Role / Device Role / Timing Role: Repeats SPI SCLK and MOSI signals to multiple display subcomponents without skew or degradation. Use Value: TTL-compatible inputs accept 3.3 V MCU outputs directly; 4 mA drive sustains signal integrity across 8 cm PCB traces. |
| Engine Control Unit (ECU) Sensor Hub | ADAS Camera Power Sequencing |
|
Use Scenario: Buffering analog sensor enable signals (e.g., MAP, O2 heater control) from safety MCU to power switches. IC Role / Device Role / Timing Role: Provides galvanic isolation between control logic and high-side switch gate drivers. Use Value: Guaranteed operation at 125 °C ambient enables placement near engine bay electronics; latch-up immunity prevents failure during load dump events. |
Use Scenario: Synchronizing power-on reset sequencing for image sensor, ISP, and serializer ICs in surround-view camera modules. IC Role / Device Role / Timing Role: Distributes clean, delayed enable signals to multiple voltage rails with matched propagation delay. Use Value: 10 ns typical tPD ensures <5 ns skew between three enable outputs, meeting MIPI CSI-2 power-up timing budgets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC3G34DP-Q100 | CMOS-level inputs (VIH = 3.15 V min at 4.5 V); higher noise margin but incompatible with 3.3 V TTL outputs. | Suitable where all upstream logic is 5 V CMOS; not recommended for mixed-voltage systems with 3.3 V MCUs. | Select when interfacing exclusively with 5 V HC-family logic and maximum noise immunity is prioritized over voltage flexibility. |
| SN74LVC3G34DCURQ1 | 3.3 V only (1.65–3.6 V), LVCMOS inputs/outputs; lower propagation delay (5.2 ns typ), smaller VSSOP8 footprint. | Optimized for modern 3.3 V automotive domains (e.g., ADAS SoCs); lacks clamp diodes and AEC-Q100 Grade 1 extended temp support. | Choose for compact, low-power 3.3 V designs where -40 °C to +105 °C suffices and overvoltage tolerance is managed externally. |
Compared with 74HC3G34DP-Q100, the HCT variant offers superior TTL compatibility for legacy integration, while SN74LVC3G34DCURQ1 delivers faster speed and smaller size in 3.3 V domains - neither matches the 74HCT3G34DP-Q100's combination of wide VCC range, Grade 1 qualification, and built-in overvoltage protection.
Availability
74HCT3G34DP-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, and engine control unit sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCT3G34DP-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, reliable logic, discrete, and MOSFET solutions for automotive, industrial, and mobile markets.
This device belongs to Nexperia's AEC-Q100-qualified automotive logic portfolio, engineered specifically for signal integrity, robustness, and long-term reliability in harsh vehicular environments.
FAQ
Is 74HCT3G34DP-Q100 pin-compatible with 74HC3G34DP-Q100?
Yes - both share identical TSSOP8 (SOT505-2) pinout and terminal functions. The only functional difference is input threshold levels: HCT uses TTL-compatible VIH/VIL, while HC requires CMOS-level inputs. Swapping them requires verifying upstream logic voltage levels and noise margins.
What is the maximum capacitive load this buffer can drive reliably?
Per datasheet test conditions, it drives 50 pF loads with ≤25 ns transition time at VCC = 4.5 V. For heavier loads (>75 pF), propagation delay increases linearly; derating is recommended above 100 pF unless external series termination is used to suppress ringing.
Does this device require external pull-up or pull-down resistors on unused inputs?
No - unused inputs must be tied to VCC or GND. Floating inputs are prohibited due to increased ICC and potential oscillation. Internal input structure does not include weak pull-ups; external DC bias is mandatory for any unconnected A1/A2/A3 pin.
Can 74HCT3G34DP-Q100 operate from a 3.3 V supply in automotive applications?
Not recommended - its specified VCC range is 4.5 V to 5.5 V for TTL compatibility. At 3.3 V, VIH minimum drops below 2.0 V, risking unreliable HIGH recognition. Use 74LVC3G34 variants instead for 3.3 V systems.
74HCT3G34DP-Q100H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- 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:
- 3
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- Push-Pull
- Current - Output High, Low:
- 4mA, 4mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
74HCT3G34DP-Q100H FAQ
1.How can I place an order for 74HCT3G34DP-Q100H through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT3G34DP-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 74HCT3G34DP-Q100H reliable?
The price and inventory of 74HCT3G34DP-Q100H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT3G34DP-Q100H is usually 5 days.
3.What payment methods are accepted for 74HCT3G34DP-Q100H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT3G34DP-Q100H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT3G34DP-Q100H?
74HCT3G34DP-Q100H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT3G34DP-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 74HCT3G34DP-Q100H?
For technical support, including 74HCT3G34DP-Q100H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT3G34DP-Q100H requirements.
6.How does Aetrix verify that 74HCT3G34DP-Q100H is sourced from the original manufacturer or authorized distributors?
All 74HCT3G34DP-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 74HCT3G34DP-Q100H meets industry standards.
7.What is the process for return or replacement of 74HCT3G34DP-Q100H?
All 74HCT3G34DP-Q100H units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT3G34DP-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 74HCT3G34DP-Q100H part is unused and in its original packaging.
Return procedure for 74HCT3G34DP-Q100H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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