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Nexperia USA Inc. 74HCT1G125GV-Q100H
- Part No.:
- 74HCT1G125GV-Q100H
- Manufacturer:
- Nexperia USA Inc.
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74HCT1G125GV-Q100H.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SC74A
- Quantity:
- Payment:
- Shipping:
Inventory:3,293
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Product details
Overview
74HCT1G125GV-Q100 from Nexperia is an automotive-grade single 3-state bus buffer/line driver with TTL-compatible inputs, 2.0 V to 6.0 V supply range, -40 °C to +125 °C operating temperature, and SC-74A (SOT753) 5-pin package. It enables bidirectional bus isolation in vehicle body control modules, infotainment interfaces, and sensor signal conditioning circuits where logic-level translation and output disable control are required.
For engineers reviewing the 74HCT1G125GV-Q100 datasheet, 74HCT1G125GV-Q100 pinout, 74HCT1G125GV-Q100 application, or 74HCT1G125GV-Q100 equivalent, this device is selected for its AEC-Q100 Grade 1 qualification, symmetrical output impedance, high noise immunity, and precise enable-controlled tri-state timing behavior in automotive serial bus and sensor interface designs.
Technical Context
This buffer implements a single non-inverting data path with active-low 3-state output enable (OE), supporting bidirectional bus arbitration via high-impedance output disable. Input clamp diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors.
It operates across two distinct logic families: 74HCT variant accepts TTL input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), while delivering CMOS-compatible output drive (VOH ≥ 3.7 V, VOL ≤ 0.4 V at IO = ±6 mA). Propagation delay is 11 ns typical (A→Y, VCC = 4.5 V, CL = 50 pF), with enable/disable times under 38 ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 4.5 V to 5.5 V - matches standard automotive 5 V rail with ±5% tolerance margin |
| Input logic type | TTL-compatible - interfaces directly with legacy microcontrollers and ASICs without level shifters |
| Output drive | ±6 mA at VCC = 4.5 V - sufficient to drive 50 pF loads over 10 cm PCB traces in ECU modules |
| Propagation delay | 11 ns typ (A→Y) - supports >20 MHz bus toggle rates in LIN or local sensor networks |
| Enable/disable time | ≤38 ns max - ensures clean bus arbitration without contention during state transitions |
| Operating temperature | -40 °C to +125 °C - qualified for under-hood and powertrain control unit environments |
| AEC-Q100 grade | Grade 1 - certified for automotive applications per Automotive Electronics Council requirements |
Pinout & Package
SC-74A (SOT753) plastic surface-mounted package: 5-lead, 1.25 mm body width, 0.95 mm pitch, 1.7 mm × 1.3 mm footprint, suitable for automated SMT assembly in space-constrained automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Active-low output enable | Drives Y to high-impedance when HIGH; enables pass-through when LOW - critical for bus sharing |
| 2 (A) | Data input | Non-inverting TTL-level input accepting 0.8 V/2.0 V thresholds - compatible with MCU GPIOs and sensor outputs |
| 3 (GND) | Ground reference | 0 V return path for all internal logic and output current - must be low-inductance connection in noisy vehicle environments |
| 4 (Y) | 3-state buffered output | CMOS-level output capable of sourcing/sinking 6 mA - drives downstream logic or small-signal loads |
| 5 (VCC) | Positive supply | Primary power rail (4.5–5.5 V); includes internal ESD protection and decoupling support |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use including thermal cycling, humidity, and vibration per JEDEC JESD22 standards |
| Symmetrical output impedance | Ensures matched rise/fall times (<10% skew) - reduces signal integrity risk on shared bus lines |
| Input clamp diodes | Permits safe overvoltage input handling up to VCC + 0.5 V with external current limiting - protects against load dump transients |
| High noise immunity | Typical 400 mV noise margin at VCC = 4.5 V - rejects coupled EMI in engine bay wiring harnesses |
| Low dynamic power | CPD = 27 pF - limits switching current in always-on modules like gateway ECUs operating at 1–5 MHz |
Applications
| Body Control Module (BCM) | Infotainment Display Interface |
|---|---|
Use Scenario: Isolating CAN/LIN transceiver I/O from microcontroller GPIOs during sleep mode. IC Role / Device Role / Timing Role: 3-state buffer enabling/disabling signal path between MCU and transceiver based on wake-up event. Use Value: Prevents bus contention during MCU reset; OE-controlled disable reduces standby current by eliminating leakage through unpowered peripherals. |
Use Scenario: Level-shifting and buffering RGB timing signals between display controller and TFT panel driver IC. IC Role / Device Role / Timing Role: Non-inverting buffer with precise propagation delay matching for pixel clock and sync signals. Use Value: Maintains <11 ns inter-signal skew across R/G/B channels, preventing color fringing in 800×480 automotive displays. |
| Engine Coolant Temperature Sensor Hub | Door Module Switch Matrix |
Use Scenario: Multiplexing analog sensor outputs (NTC-based) into ADC inputs of a central body controller. IC Role / Device Role / Timing Role: Bus buffer isolating sensor signal path during ADC conversion cycles to avoid crosstalk. Use Value: High-impedance disable prevents loading of precision voltage dividers, preserving ±0.5 °C measurement accuracy. |
Use Scenario: Scanning mechanical switch arrays (window, lock, mirror controls) using row/column multiplexing. IC Role / Device Role / Timing Role: Output-enable controlled line driver routing column select signals to 8+ switches. Use Value: Fast enable/disable (<38 ns) allows full 16-switch matrix scan within 200 μs, meeting ASAM diagnostic response timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC1G125GV-Q100 | CMOS-input variant (VIH = 3.15 V min at VCC = 4.5 V); identical pinout, package, and AEC-Q100 Grade 1 rating | Requires higher input voltage for logic HIGH; unsuitable for direct TTL source interfacing | Select when driving from 3.3 V or 5 V CMOS logic only; not drop-in for TTL sources |
| SN74LVC1G125DBVR | Single 3-state buffer, 1.65–5.5 V supply, -40 °C to +125 °C, but AEC-Q100 not claimed; SOT-23-5 package | Lacks automotive qualification documentation; lower ESD rating (HBM 2 kV vs. 2 kV minimum, but no CDM spec published) | Acceptable for industrial or non-safety-critical interior modules where AEC-Q100 is not mandated |
Compared with 74HCT1G125GV-Q100, the HC variant requires higher input thresholds and cannot interface directly with TTL outputs, while the SN74LVC1G125DBVR lacks formal automotive qualification and uses a different package footprint-making neither a direct replacement without board redesign or qualification revalidation.
Availability
74HCT1G125GV-Q100 is available at Aetrix Electronics and suitable for automotive body electronics, infotainment subsystems, and powertrain sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCT1G125GV-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 focused on essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
This device belongs to Nexperia's AEC-Q100-qualified 74HCT logic family, engineered specifically for robust signal integrity and thermal stability in automotive electronic control units and distributed sensor systems.
FAQ
What is the maximum recommended supply voltage for continuous operation?
The absolute maximum supply voltage is +7.0 V, but the recommended operating range is 4.5 V to 5.5 V. Operation above 5.5 V risks exceeding static characteristics limits, particularly VIH/VIL thresholds and output drive capability, and voids AEC-Q100 compliance guarantees. Sustained use beyond 5.5 V may accelerate parametric drift in high-temperature environments.
Can this device drive a 100 pF capacitive load reliably?
No - the datasheet specifies dynamic performance (tpd, ten, tdis) at CL = 50 pF. Driving 100 pF increases propagation delay by ~30% and may exceed output current limits during fast edges, risking waveform distortion. For >50 pF loads, add series termination or use a higher-drive buffer such as 74HCT244.
Is the SC-74A (SOT753) package lead-free and RoHS compliant?
Yes - Nexperia confirms the 74HCT1G125GV-Q100 in SOT753 packaging meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with lead-free matte tin terminal finish and halogen-free molding compound, verified per JEDEC J-STD-020 moisture sensitivity level 1.
How does the input clamp diode affect system-level ESD protection design?
The integrated input clamp diodes provide primary protection against ±2000 V HBM and ±1000 V CDM events, but they require external current-limiting resistors (≥1 kΩ) when interfacing to nodes exposed to >VCC + 0.5 V transients. Without those resistors, clamp conduction can cause latch-up or permanent damage during sustained overvoltage conditions.
74HCT1G125GV-Q100H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 7.8mA, 7.8mA
- 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:
- SC-74A
74HCT1G125GV-Q100H FAQ
1.How can I place an order for 74HCT1G125GV-Q100H through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT1G125GV-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 74HCT1G125GV-Q100H reliable?
The price and inventory of 74HCT1G125GV-Q100H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT1G125GV-Q100H is usually 5 days.
3.What payment methods are accepted for 74HCT1G125GV-Q100H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT1G125GV-Q100H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT1G125GV-Q100H?
74HCT1G125GV-Q100H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT1G125GV-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 74HCT1G125GV-Q100H?
For technical support, including 74HCT1G125GV-Q100H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT1G125GV-Q100H requirements.
6.How does Aetrix verify that 74HCT1G125GV-Q100H is sourced from the original manufacturer or authorized distributors?
All 74HCT1G125GV-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 74HCT1G125GV-Q100H meets industry standards.
7.What is the process for return or replacement of 74HCT1G125GV-Q100H?
All 74HCT1G125GV-Q100H units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT1G125GV-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 74HCT1G125GV-Q100H part is unused and in its original packaging.
Return procedure for 74HCT1G125GV-Q100H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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