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Diodes Incorporated 74AHC1G125QW5-7
- Part No.:
- 74AHC1G125QW5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74AHC1G125QW5-7.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:4,866
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Product details
Overview
74AHC1G125QW5-7 from Diodes Incorporated is an automotive-grade single non-inverting buffer with 3-state output, designed for level translation and bus isolation in 2.0V–5.5V systems. It features ±8mA drive at 4.5V, Grade 1 temperature operation (−40°C to +125°C), Schmitt-trigger inputs for noise immunity, and AEC-Q100 qualification for under-hood automotive control modules.
For engineers reviewing the 74AHC1G125QW5-7 datasheet, 74AHC1G125QW5-7 pinout, 74AHC1G125QW5-7 application, or 74AHC1G125QW5-7 equivalent, this device is selected for its rail-to-rail input tolerance, fast propagation delay (3.4ns typ @5V), low ICC (1µA typ), high ESD robustness (2kV HBM), and SOT25 package compatibility with space-constrained PCB layouts.
Technical Context
This logic buffer implements a single-channel non-inverting amplification path with active-low 3-state enable control. Its Schmitt-trigger inputs accept slow-rising signals without oscillation, while balanced rise/fall times and matched drive strength ensure clean signal integrity across voltage domains.
The device operates across 2.0V–5.5V supply range with guaranteed performance over −40°C to +125°C ambient. Input voltage range extends beyond VCC (−0.5V to 6.5V), enabling safe interfacing with higher-voltage sources without clamping diodes or external protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0V to 5.5V - supports mixed-voltage system interfacing (e.g., 3.3V MCU to 5V peripheral) |
| Output Drive Strength | ±8mA @ 4.5V - sufficient to drive 50pF loads with <9.5ns propagation delay at full temperature range |
| Propagation Delay | 3.4ns (typ) @ 5V, CL=15pF - enables reliable timing in >100MHz data paths with margin |
| Input Threshold | Schmitt-trigger hysteresis - rejects noise on slow edges; VIH/VIL thresholds scale with VCC (e.g., 3.85V/1.65V @5.5V) |
| Quiescent Current | 1µA (typ) @5.5V - minimizes standby power in always-on automotive modules |
| ESD Protection | 2000V HBM, 1000V CDM - exceeds AEC-Q100-002/-011 requirements for production vehicle environments |
| Operating Temperature | −40°C to +125°C (Grade 1) - qualified for engine control units, body controllers, and ADAS sensor interfaces |
Pinout & Package
SOT25 (3.0mm × 2.8mm × 1.2mm, 0.95mm lead pitch) surface-mount package with moisture sensitivity level 1 per J-STD-020 and matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Data Input | Non-inverting logic input; accepts voltages up to 6.5V regardless of VCC |
| 2 (OE) | Output Enable (Active-Low) | Drives Y high-impedance when HIGH; enables bus sharing in multi-driver systems |
| 3 (GND) | Ground Reference | Return path for all internal logic and output current; must be low-inductance connection |
| 4 (Y) | 3-State Output | Buffered non-inverted signal; high-Z state prevents contention during bus arbitration |
| 5 (VCC) | Power Supply | Primary supply rail; decoupling capacitor required within 5mm for stable switching |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input tolerance | VI range −0.5V to 6.5V - eliminates need for external level shifters when interfacing with legacy 5V logic |
| Grade 1 automotive qualification | AEC-Q100 qualified, PPAP capable, IATF 16949 manufactured - meets OEM requirements for serial production |
| Low-power CMOS architecture | ICC = 1µA typical at 5.5V - reduces thermal load in sealed enclosures and extends battery life in sleep modes |
| Controlled output transition rates | Δt/ΔV ≤ 100ns/V @3.3V - limits EMI generation and crosstalk in dense routing environments |
| High noise immunity | Schmitt-trigger inputs with ~0.3V hysteresis - suppresses false triggering from ESD transients or coupled noise |
Applications
| Automotive Body Control Module | Industrial PLC I/O Expansion |
|---|---|
|
Use Scenario: Isolating microcontroller GPIOs from high-noise solenoid drivers and relay coils in door lock and lighting control circuits. IC Role / Device Role / Timing Role: Signal buffer with 3-state output enables shared bus communication between multiple MCUs and peripheral drivers. Use Value: Schmitt-trigger inputs reject electromagnetic interference from inductive loads; ±8mA drive ensures reliable activation of optocouplers and level translators. |
Use Scenario: Level-shifting and buffering digital status signals between 3.3V FPGA-based controllers and 24V industrial fieldbus nodes. IC Role / Device Role / Timing Role: Non-inverting buffer with rail-tolerant inputs bridges voltage domains while maintaining signal integrity across long PCB traces. Use Value: 2.0V–5.5V supply range allows direct integration into mixed-supply backplanes; low propagation delay (<7ns @5V) preserves timing margins in deterministic control loops. |
| Automotive Infotainment Display Interface | Medical Diagnostic Equipment Data Bus |
|
Use Scenario: Driving display backlight enable lines and touch controller interrupt signals in head-unit assemblies exposed to wide thermal cycling. IC Role / Device Role / Timing Role: 3-state buffer isolates display subsystem from main SoC during power-down sequences to prevent backfeeding. Use Value: −40°C to +125°C operation ensures reliability in dash-mounted units; AEC-Q100 qualification satisfies Tier-1 supplier audit requirements. |
Use Scenario: Buffering UART and SPI signals between isolated patient-monitoring sensors and central processing units in Class II medical devices. IC Role / Device Role / Timing Role: Logic-level translator and noise filter for safety-critical serial communications requiring low-latency response. Use Value: 2kV HBM ESD rating protects against handling damage during assembly; low ICC supports battery-powered portable diagnostics with extended runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DBVR | Lower VCC min (1.65V); no Schmitt inputs; 100mA latch-up rating vs. 100mA (same) | Targeted at consumer/portable gear; lacks AEC-Q100 qualification and Grade 1 temp range | Select when cost-sensitive non-automotive designs require wider low-voltage operation down to 1.65V |
| 74AUP1G125GW,125 | Ultra-low ICC (0.9µA typ); slower tPD (10.5ns @3.3V); same 2.0–5.5V range and Schmitt inputs | Optimized for ultra-low-power IoT edge nodes; not AEC-Q100 qualified | Select when sub-1µA quiescent current is mandatory and timing budget allows >10ns delays |
Compared with SN74LVC1G125DBVR and 74AUP1G125GW,125, the 74AHC1G125QW5-7 uniquely combines AEC-Q100 Grade 1 qualification, Schmitt-trigger noise immunity, and ±8mA drive in a single SOT25 package-making it the only choice for production automotive bus isolation where reliability and ESD robustness are non-negotiable.
Availability
74AHC1G125QW5-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O expansion, infotainment display interfaces, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and rigorous quality compliance.
Supply support for 74AHC1G125QW5-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets with ISO/TS 16949 and IATF 16949 certifications.
The 74AHC logic family delivers high-speed, low-power, and wide-supply-range solutions for automotive signal conditioning and bus interface applications-designed specifically to meet AEC-Q100 stress test requirements and production vehicle environmental demands.
FAQ
What is the maximum allowable input voltage for the 74AHC1G125QW5-7?
The absolute maximum input voltage is −0.5V to +6.5V, independent of VCC level. This rail-to-rail input tolerance allows safe interfacing with higher-voltage sources (e.g., 5V sensors feeding a 3.3V MCU) without external clamping circuitry or level shifters, reducing BOM count and layout complexity.
Does the 74AHC1G125QW5-7 support hot-swap or live-insertion?
No-this device does not include hot-swap protection circuitry. Its inputs and outputs are not designed for powered insertion into live backplanes. For hot-swap applications, external series resistors and TVS diodes are required to limit inrush current and transient energy before the device's ESD structures.
How does the Schmitt-trigger input improve system reliability?
The Schmitt-trigger input provides ~0.3V hysteresis, rejecting noise spikes and slow-rising signals that could cause metastability or double-clocking in downstream logic. This is critical in automotive environments where EMI from ignition systems or motor drives can corrupt marginal input transitions without additional filtering.
Can the 74AHC1G125QW5-7 drive a 50pF capacitive load at 125°C?
Yes-datasheet switching characteristics confirm tPD ≤14.5ns and tDIS ≤16.5ns at VCC = 5V, CL = 50pF, and TA = −40°C to +125°C. The ±8mA drive capability ensures adequate slew rate to charge/discharge 50pF loads within timing budgets even at maximum junction temperature.
74AHC1G125QW5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74AHC
- 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:
- 8mA, 8mA
- Voltage - Supply:
- 2V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
74AHC1G125QW5-7 FAQ
1.How can I place an order for 74AHC1G125QW5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC1G125QW5-7 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 74AHC1G125QW5-7 reliable?
The price and inventory of 74AHC1G125QW5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC1G125QW5-7 is usually 5 days.
3.What payment methods are accepted for 74AHC1G125QW5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC1G125QW5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC1G125QW5-7?
74AHC1G125QW5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC1G125QW5-7 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 74AHC1G125QW5-7?
For technical support, including 74AHC1G125QW5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC1G125QW5-7 requirements.
6.How does Aetrix verify that 74AHC1G125QW5-7 is sourced from the original manufacturer or authorized distributors?
All 74AHC1G125QW5-7 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 74AHC1G125QW5-7 meets industry standards.
7.What is the process for return or replacement of 74AHC1G125QW5-7?
All 74AHC1G125QW5-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC1G125QW5-7, 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 74AHC1G125QW5-7 part is unused and in its original packaging.
Return procedure for 74AHC1G125QW5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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