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Nexperia USA Inc. 74HCT1G125GW-Q100H
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- Part No.:
- 74HCT1G125GW-Q100H
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74HCT1G125GW-Q100H.pdf
- Description:
- IC BUF NON-INVERT 5.5V 5TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,233
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Product details
Overview
74HCT1G125GW-Q100 from Nexperia is an automotive-qualified single 3-state bus buffer/line driver with TTL-compatible inputs, operating from 4.5 V to 5.5 V supply, featuring 10 ns typical propagation delay (VCC = 4.5 V, CL = 50 pF), ±6 mA output drive, and AEC-Q100 Grade 1 qualification for under-hood control modules.
For engineers reviewing the 74HCT1G125GW-Q100 datasheet, 74HCT1G125GW-Q100 pinout, 74HCT1G125GW-Q100 application, or 74HCT1G125GW-Q100 equivalent, this device serves as a low-power, high-noise-immunity interface buffer for CAN/LIN transceiver enable control, sensor signal conditioning, and ECU I/O expansion in temperature-critical automotive subsystems.
Technical Context
This device implements a single non-inverting buffer with active-low 3-state output enable (OE), enabling bidirectional bus isolation in automotive domain controllers. Its TTL-level input threshold (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5 V) ensures compatibility with legacy microcontroller GPIOs and discrete logic families.
Internal clamp diodes on all inputs allow safe interfacing to signals exceeding VCC when used with current-limiting resistors. The output stage delivers symmetrical rise/fall times and balanced propagation delays (tpd = ten = tdis ≈ 10–36 ns), supporting clean signal integrity in 50 pF-loaded automotive PCB traces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - matches standard automotive 5 V rail with ±10% tolerance margin |
| Input Logic Type | TTL-compatible - interfaces directly with MCU GPIOs and legacy 5 V logic without level shifters |
| Propagation Delay | 11 ns typ (VCC = 4.5 V, CL = 50 pF) - enables sub-100 MHz bus timing margins in ECU data paths |
| Output Drive | ±6.0 mA - sufficient to drive 50 pF loads across 10 cm PCB traces with <10% overshoot |
| Operating Temp | −40 °C to +125 °C - qualified for engine bay, transmission, and ADAS sensor module environments |
| AEC-Q100 Grade | Grade 1 - certified for automotive powertrain and chassis applications per ISO/TS 16949 |
| ESD Protection | HBM >2000 V, CDM >1000 V - withstands assembly handling and in-vehicle electrostatic events |
Pinout & Package
TSSOP5 (SOT353-1) plastic thin shrink small outline package, 5-lead, 1.25 mm body width, 0.65 mm pitch, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Active-low output enable | Drives Y high-impedance when LOW; enables buffer pass-through when HIGH |
| 2 (A) | Data input | Non-inverting TTL-level input accepting 0–5.5 V swing with internal clamping |
| 3 (GND) | Ground reference | 0 V return path for logic and output current; must be low-inductance connection |
| 4 (Y) | 3-state buffered output | Drives load with CMOS-level swing (VOH ≥ 3.84 V, VOL ≤ 0.33 V @ 6 mA) |
| 5 (VCC) | Positive supply | 4.5–5.5 V nominal rail; requires local 100 nF ceramic decoupling within 5 mm |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive powertrain and chassis systems with full stress testing per JESD22-A108 |
| Input clamp diodes | Enables safe overvoltage tolerance up to VCC + 0.5 V using external series resistors |
| Symmetrical output impedance | Ensures matched rise/fall times (<15% skew) for clean clock/data edges in LIN/CAN auxiliary paths |
| Low ICC supply current | ≤10 μA max at VCC = 5.5 V - reduces quiescent load on always-on vehicle battery circuits |
| High noise immunity | ΔVNI ≥ 0.4 V (VCC = 4.5 V) - rejects coupled transients from ignition or motor drivers |
Applications
| Engine Control Unit (ECU) I/O Expansion | LIN Bus Transceiver Enable Interface |
|---|---|
Use Scenario: Expanding limited GPIO count on 32-bit automotive MCUs to manage solenoid drivers, sensor selects, and diagnostic LEDs. IC Role / Device Role / Timing Role: 3-state buffer isolates MCU pins from noisy actuator returns while enabling shared bus access during diagnostics. Use Value: Prevents back-driving of MCU outputs during power sequencing; supports hot-plug-safe firmware updates via LIN. |
Use Scenario: Controlling enable/disable timing of LIN transceivers in body control modules with strict wake-up latency requirements. IC Role / Device Role / Timing Role: Provides precise, jitter-free OE assertion synchronized to MCU UART framing for deterministic LIN node startup. Use Value: Guarantees <30 ns enable/disable timing skew between multiple transceivers sharing one MCU UART port. |
| ADAS Camera Sensor Signal Conditioning | Transmission Control Module (TCM) Diagnostic Port |
Use Scenario: Buffering low-current analog video sync signals (HS/VS) from image sensors before routing to SoC video processors. IC Role / Device Role / Timing Role: Acts as a noise-filtering repeater with controlled edge rates to suppress EMI coupling into adjacent LVDS lanes. Use Value: Maintains <1 ns inter-pair skew across HS/VS paths while rejecting >200 mV common-mode noise from nearby power converters. |
Use Scenario: Isolating diagnostic test points in TCMs from main controller logic during factory calibration and end-of-line testing. IC Role / Device Role / Timing Role: Enables/disables physical-layer access to J1962 connector pins without disrupting real-time torque control loops. Use Value: Eliminates risk of unintended CAN bus arbitration loss during service-mode activation; meets ISO 14229-1 UDS timing constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC1G125GW-Q100 | CMOS-level inputs (VIH = 3.15 V min), wider 2.0–6.0 V supply range | Better suited for mixed-voltage domains (e.g., 3.3 V MCU driving 5 V peripherals) | Select when interfacing with 3.3 V logic families or variable supply rails; not TTL-compatible |
| SN74LVC1G125DBVR | Lower VCC range (1.65–5.5 V), higher speed (6.5 ns typ), non-automotive grade | Limited to cabin electronics or infotainment where AEC-Q100 is not required | Choose for cost-sensitive non-safety applications needing faster timing; lacks automotive qualification |
Compared with 74HC1G125GW-Q100, this HCT variant offers guaranteed TTL input compatibility at 5 V but narrower supply range; versus SN74LVC1G125DBVR, it trades speed for AEC-Q100 Grade 1 reliability and thermal robustness in under-hood locations.
Availability
74HCT1G125GW-Q100 is available at Aetrix Electronics and suitable for engine control units, LIN bus nodes, ADAS camera interfaces, and transmission control modules requiring stable component supply across extended temperature ranges and automotive lifecycle commitments.
Supply support for 74HCT1G125GW-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 delivering high-performance, reliable, and efficient logic, analog, and MOSFET solutions optimized for automotive, industrial, and consumer applications.
This device belongs to Nexperia's AEC-Q100-qualified 74HCT logic family, engineered specifically for robust signal buffering and bus isolation in harsh automotive environments with extended temperature operation and stringent ESD resilience.
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. Exceeding this requires external current limiting (e.g., 1 kΩ series resistor) to keep IIK ≤ ±20 mA per pin, as specified in Table 5 of the datasheet.
Can 74HCT1G125GW-Q100 drive a 100 pF load reliably?
Yes - dynamic characteristics specify CL = 50 pF test condition, but propagation delay increases only to 36 ns max at 125 °C. With proper PCB layout (short traces, ground plane), it maintains signal integrity driving up to 100 pF, though edge rates slow by ~25% versus 50 pF.
Is there a recommended decoupling capacitor value and placement?
A 100 nF X7R ceramic capacitor is recommended, placed within 5 mm of pins 3 (GND) and 5 (VCC), with direct low-inductance vias to inner ground/power planes. This ensures stable switching behavior and minimizes VCC sag during 6 mA output transitions.
Does the device support hot insertion or live bus connection?
No - while input clamps tolerate overvoltage, the device lacks true hot-swap protection. Connecting to a live bus may cause momentary contention if OE state is undefined. Always assert OE = LOW before powering VCC, and sequence VCC before applying input signals.
74HCT1G125GW-Q100H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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:
- 5-TSSOP
74HCT1G125GW-Q100H FAQ
1.How can I place an order for 74HCT1G125GW-Q100H through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT1G125GW-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 74HCT1G125GW-Q100H reliable?
The price and inventory of 74HCT1G125GW-Q100H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT1G125GW-Q100H is usually 5 days.
3.What payment methods are accepted for 74HCT1G125GW-Q100H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT1G125GW-Q100H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT1G125GW-Q100H?
74HCT1G125GW-Q100H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT1G125GW-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 74HCT1G125GW-Q100H?
For technical support, including 74HCT1G125GW-Q100H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT1G125GW-Q100H requirements.
6.How does Aetrix verify that 74HCT1G125GW-Q100H is sourced from the original manufacturer or authorized distributors?
All 74HCT1G125GW-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 74HCT1G125GW-Q100H meets industry standards.
7.What is the process for return or replacement of 74HCT1G125GW-Q100H?
All 74HCT1G125GW-Q100H units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT1G125GW-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 74HCT1G125GW-Q100H part is unused and in its original packaging.
Return procedure for 74HCT1G125GW-Q100H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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