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Nexperia USA Inc. 74HCT2G34GW,125
- Part No.:
- 74HCT2G34GW,125
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
74HCT2G34GW,125.pdf
- Description:
- IC BUF NON-INVERT 5.5V 6TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:8,639
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Product details
Overview
74HCT2G34GW,125 from Nexperia is a dual non-inverting buffer gate IC with TTL-compatible inputs, 6-pin TSSOP package (SOT363-2), operating from 4.5 V to 5.5 V supply, rated for -40 °C to +125 °C, and delivering 4.0 mA output drive at 4.5 V - used in level-shifting, signal conditioning, and bus driving in industrial control logic.
For engineers reviewing the 74HCT2G34GW,125 datasheet, 74HCT2G34GW,125 pinout, 74HCT2G34GW,125 application, or 74HCT2G34GW,125 equivalent, this device is selected for robust TTL-level interfacing in high-temperature embedded systems where input clamping diodes, low static current (<20 μA at 125 °C), and balanced propagation delay (10–29 ns) are critical.
Technical Context
The 74HCT2G34GW,125 implements two independent CMOS-based non-inverting buffers with TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V) and rail-to-rail output swing. Its input clamp diodes allow safe interface to voltages exceeding VCC when used with current-limiting resistors.
It features symmetrical propagation delays (tPLH/tPHL matched within ±1 ns typical), supports unlimited input rise/fall times, and maintains guaranteed VOH ≥ 4.13 V and VOL ≤ 0.33 V under 4.0 mA load across -40 °C to +125 °C - enabling reliable signal regeneration in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL systems and stable operation across industrial voltage tolerances. |
| Input Thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V - guarantees reliable recognition of legacy TTL logic levels without level translation. |
| Output Drive | ±4.0 mA at VCC = 4.5 V - sufficient to drive multiple 74-series inputs or small capacitive loads (≤50 pF) with controlled edge rates. |
| Propagation Delay | 10–29 ns (VCC = 4.5 V, CL = 50 pF, -40 °C to +125 °C) - enables timing-critical signal buffering in real-time control loops. |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood, motor drive, and power supply monitoring applications without derating. |
| Static Supply Current | ≤20.0 μA at +125 °C - minimizes quiescent power in always-on subsystems such as watchdog or status monitoring circuits. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - provides robust handling tolerance during automated PCB assembly and field service. |
Pinout & Package
TSSOP6 plastic thin shrink small outline package (SOT363-2), 6 leads, body width 1.25 mm, pin 1 indicator located on lower left corner below marking code "UA".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A | First buffer input - accepts TTL-level signals; internally clamped to prevent overvoltage damage. |
| 2 | GND | Ground reference - must be connected to system 0 V plane; serves as return path for both buffers and internal ESD structures. |
| 3 | 2A | Second buffer input - electrically isolated from 1A; enables dual independent signal paths in compact layout. |
| 4 | 2Y | Second buffer output - delivers inverted-logic-complementary (non-inverted) signal with full rail-swing capability. |
| 5 | VCC | Positive supply - powers both buffers; decoupling capacitor (100 nF) recommended within 5 mm of this pin. |
| 6 | 1Y | First buffer output - matches 2Y in drive strength and timing; allows synchronous fanout to two destinations. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible input thresholds | Enables direct connection to legacy 5 V microcontrollers, FPGAs, and logic families without external level shifters. |
| Input clamp diodes | Allows safe interface to signals up to VCC + 0.5 V using series current-limiting resistors - eliminates need for external protection. |
| Balanced propagation delays | tPLH and tPHL match within ±1 ns typical - prevents skew-induced glitches when buffering parallel data lines. |
| Wide temperature range support | Guaranteed operation from -40 °C to +125 °C with no parameter derating - suitable for automotive engine control modules. |
| Low dynamic power dissipation | CPD = 9 pF - limits switching power to <15 μW at 1 MHz, supporting energy-efficient sensor interface designs. |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
|
Use Scenario: Buffering digital sensor outputs (e.g., door latch, seat position) before routing to MCU GPIOs in harsh under-dash environments. IC Role / Device Role / Timing Role: Signal integrity conditioner - isolates MCU from EMI-prone wiring harnesses while preserving edge timing for debounced interrupt generation. Use Value: Input clamping diodes and 125 °C rating eliminate external TVS and thermal derating, reducing BOM count by one component per channel. |
Use Scenario: Driving LED indicators and relay coils from low-drive MCU pins in centralized lighting control units. IC Role / Device Role / Timing Role: Output amplifier - boosts current capability from 4 mA MCU pin to 4 mA buffered output, enabling direct LED drive without discrete transistors. Use Value: Matched tPLH/tPHL ensures synchronized illumination of multi-segment status displays, avoiding visible flicker during state transitions. |
| Medical Infusion Pump Logic Interface | Factory Automation Sensor Hub |
|
Use Scenario: Isolating safety-critical limit switch signals from motor driver logic in Class II medical equipment. IC Role / Device Role / Timing Role: Fault-tolerant signal repeater - provides galvanic separation via logic-level buffering while maintaining sub-30 ns response for emergency stop detection. Use Value: Latch-up immunity >100 mA and HBM >2000 V meet IEC 60601-1 ESD requirements without additional protection circuitry. |
Use Scenario: Consolidating discrete sensor alerts (temperature, vibration, pressure) into a single parallel bus for edge gateway polling. IC Role / Device Role / Timing Role: Bus signal conditioner - drives distributed 50 pF trace capacitance across 10 cm PCB runs while maintaining clean logic edges at 1 MHz update rate. Use Value: 9 pF CPD and 5 ns typical transition time ensure <1% duty-cycle distortion on 1 MHz clocked status reads, improving diagnostic accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT2G34GV,125 | Same electrical specs; SC-74 (SOT457) package with 2.5 mm body length vs. TSSOP6's 1.25 mm width - larger footprint, slightly higher thermal resistance. | Better suited for manual rework or wave soldering due to wider lead pitch (0.95 mm vs. 0.65 mm); less optimal for ultra-dense layouts. | Select GV variant only if board assembly process lacks fine-pitch reflow capability or requires higher mechanical robustness. |
| SN74LVC2G34DBVR | Lower VCC range (1.65–5.5 V), CMOS inputs (not TTL), 32 mA drive, but only rated to +85 °C - not qualified for 125 °C operation. | Applicable in commercial-grade IoT hubs or consumer electronics where extended temperature is unnecessary. | Choose only for cost-sensitive, non-industrial designs requiring wider supply flexibility and higher drive, with ambient <85 °C. |
Compared with 74HCT2G34GV,125, the GW version offers superior board space efficiency and thermal performance in high-density industrial modules; versus SN74LVC2G34DBVR, it trades supply flexibility for guaranteed 125 °C operation and native TTL compatibility - essential for legacy system integration.
Availability
74HCT2G34GW,125 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, and medical infusion pump logic interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCT2G34GW,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 logic, analog, and discrete components with emphasis on reliability, efficiency, and manufacturability.
The 74HCT2G34GW,125 belongs to Nexperia's industry-standard 74HCT logic family, designed specifically for robust TTL-level interfacing in automotive, industrial, and medical applications demanding extended temperature operation and high ESD resilience.
FAQ
Can 74HCT2G34GW,125 operate at 3.3 V supply?
No. The 74HCT2G34GW,125 is specified only for 4.5 V to 5.5 V operation per its recommended conditions. At 3.3 V, input thresholds (VIH ≥ 2.0 V) may not be reliably met, and output drive degrades significantly - use 74LVC2G34 instead for 3.3 V systems.
What is the maximum capacitive load this device can drive reliably?
The device is characterized up to 50 pF load capacitance with guaranteed timing (tpd ≤ 29 ns at 125 °C). For loads >50 pF, propagation delay increases linearly; at 100 pF, tpd extends to ~45 ns. Layout best practice limits trace + load capacitance to ≤50 pF for timing-critical paths.
Does this part support hot-swap or live-insertion?
No. The 74HCT2G34GW,125 lacks powered-off protection or Ioff specification. Applying input signals while VCC = 0 V may forward-bias internal clamp diodes and cause excessive current flow - always power VCC before asserting inputs.
How does the input clamping diode function in practical design?
Each input has an internal diode to VCC and GND. When interfacing to a 12 V sensor signal, a 10 kΩ series resistor limits current to <2 mA (per JESD78), preventing damage while allowing logic-level recognition - no external diodes required.
74HCT2G34GW,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
74HCT2G34GW,125 FAQ
1.How can I place an order for 74HCT2G34GW,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT2G34GW,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 74HCT2G34GW,125 reliable?
The price and inventory of 74HCT2G34GW,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT2G34GW,125 is usually 5 days.
3.What payment methods are accepted for 74HCT2G34GW,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT2G34GW,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT2G34GW,125?
74HCT2G34GW,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT2G34GW,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 74HCT2G34GW,125?
For technical support, including 74HCT2G34GW,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT2G34GW,125 requirements.
6.How does Aetrix verify that 74HCT2G34GW,125 is sourced from the original manufacturer or authorized distributors?
All 74HCT2G34GW,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 74HCT2G34GW,125 meets industry standards.
7.What is the process for return or replacement of 74HCT2G34GW,125?
All 74HCT2G34GW,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT2G34GW,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 74HCT2G34GW,125 part is unused and in its original packaging.
Return procedure for 74HCT2G34GW,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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