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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

Diodes Incorporated 74AHC1G125SE-7

Name: 74AHC1G125SE-7
Brand: Diodes Incorporated
SKU: 74AHC1G125SE-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74AHC1G125SE-7

Manufacturer:: Diodes Incorporated

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 5-TSSOP, SC-70-5, SOT-353

Datasheet:: 74AHC1G125SE-7.pdf

Description:: IC BUF NON-INVERT 5.5V SOT353

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Product details

Overview

74AHC1G125SE-7 from Diodes Incorporated is a single non-inverting buffer gate with 3-state output, designed for bus driving and signal isolation in low-voltage digital systems. It operates across 2.0V–5.5V supply, delivers ±8 mA drive at 5.0V, features Schmitt-trigger inputs for noise immunity, and uses SOT353 package with 5-pin configuration. It enables dynamic bus sharing in portable computing peripherals.

For engineers reviewing the 74AHC1G125SE-7 datasheet, 74AHC1G125SE-7 pinout, 74AHC1G125SE-7 application, or 74AHC1G125SE-7 equivalent, key selection criteria include 3-state enable timing (t_EN/t_DIS ≤ 6.5 ns @ 5V), input hysteresis (ΔV_IN ≈ 0.3 V), leakage current (I_OZ ≤ 10 µA), and thermal resistance (θ_JA = 430 °C/W).

Technical Context

This device implements a CMOS-based non-inverting buffer with active-low output enable (OE), where Y = A when OE = L and Y = high-impedance when OE = H. Its Schmitt-trigger inputs provide hysteresis (≈0.3 V) to tolerate slow-rising/falling signals common in mixed-signal interfaces.

It supports rail-to-rail operation from 2.0V to 5.5V, exhibits propagation delay as low as 3.4 ns (t_PD, CL=15pF, V_CC=5V), and maintains I_OZ < 2.5 µA over full temperature range (−40°C to +125°C), enabling reliable bus hold-down during state transitions.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.0 V to 5.5 V - Enables interoperability across 2.5V, 3.3V, and 5V logic domains without level shifters.
Output Drive Strength	±8 mA @ 5.0 V - Sufficient to drive 15pF loads with <7 ns propagation delay and support fan-out of ≥10 LS-TTL loads.
Input Hysteresis	≈0.3 V - Mitigates noise-induced glitches on slow edges, eliminating need for external RC filtering in noisy environments.
3-State Enable/Disable Time	t_EN = 3.6 ns, t_DIS = 4.1 ns @ 5V - Ensures clean bus arbitration with minimal bus contention window in multi-driver systems.
High-Z Leakage Current	I_OZ ≤ 2.5 µA @ −40°C to +125°C - Prevents unintended current paths during tri-state mode, critical for low-power sleep states.
Input Capacitance	C_i = 2.0 pF - Minimizes capacitive loading on upstream drivers, preserving signal integrity in high-speed routing.

Pinout & Package

SOT353 (5-pin small outline transistor) package with 1.2 mm × 2.1 mm footprint, 0.65 mm pitch, and exposed pad-less construction optimized for space-constrained portable designs.

Pin/Terminal	Circuit Role	Design Meaning
1 (OE)	Active-Low Output Enable	Drives output Y to high-impedance when logic HIGH; enables shared-bus arbitration without external gating logic.
2 (A)	Non-Inverting Data Input	Accepts CMOS-level signals with Schmitt-trigger hysteresis; tolerant of slow edges up to 100 ns/V slew rate.
3 (GND)	Ground Reference	Return path for all internal currents; must be connected directly to low-impedance system ground plane.
4 (Y)	3-State Output	Delivers buffered A or high-Z state; capable of sinking/sourcing ±8 mA while maintaining VOL ≤ 0.55 V @ 8 mA.
5 (V_CC)	Positive Supply	Power rail for internal logic; requires local 100 nF ceramic decoupling within 3 mm of pin to suppress switching noise.

Key Features

Feature	Design Value
Schmitt-trigger inputs	Provides 0.3 V hysteresis to reject noise on long traces or unshielded cables in industrial I/O modules.
Wide supply range (2.0–5.5 V)	Eliminates need for separate voltage regulators when interfacing legacy 5V peripherals with modern 3.3V SoCs.
Low ICC (1 µA typical)	Reduces quiescent power in always-on subsystems such as USB suspend detection or battery-backed real-time clocks.
ESD robustness (HBM >2 kV)	Withstands handling and board assembly without additional protection components, lowering BOM count in consumer PCBs.

Applications

USB Peripheral Interface

Industrial Sensor Hub

Use Scenario: Isolating USB data lines between microcontroller and external hub IC during hot-plug events.

IC Role / Device Role / Timing Role: 3-state buffer enabling/disabling signal path under firmware control to prevent bus contention.

Use Value: t_DIS ≤ 4.1 ns ensures no glitch propagation during state transition, meeting USB 2.0 setup/hold timing margins.

Use Scenario: Multiplexing analog sensor outputs (e.g., thermistors, RTDs) into a shared ADC input channel.

IC Role / Device Role / Timing Role: Non-inverting buffer with high-Z disable isolates inactive sensors to avoid loading and crosstalk.

Use Value: I_OZ ≤ 2.5 µA prevents DC offset errors in precision 16-bit ADC measurements across temperature range.

Portable Media Player UI

Automotive Infotainment Display

Use Scenario: Driving LED backlight control signals from low-drive MCU GPIOs to high-current LED drivers.

IC Role / Device Role / Timing Role: Level-shifting and current-boosting buffer between 1.8V/3.3V logic and 5V display power domain.

Use Value: ±8 mA drive capability eliminates need for discrete transistor stages, reducing layout area by ~30%.

Use Scenario: Enabling/disabling CAN transceiver standby mode via microcontroller-controlled enable line.

IC Role / Device Role / Timing Role: Signal conditioner for wake-up interrupt line with noise-immune Schmitt input.

Use Value: Input hysteresis rejects EMI from motor drivers and alternators, preventing false wake-ups in parked vehicles.

Equivalent & Alternatives

The following parts are listed as comparable options for similar buffer-with-enable applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
74LVC1G125GW,125 (Nexperia)	Lower V_CC min = 1.65 V; higher I_OZ = 5 µA max; same SOT353 footprint.	Better suited for ultra-low-voltage battery-powered sensors but less suitable for 5V-tolerant legacy interfaces.	Select when operating below 2.0 V or requiring tighter 1.8V logic compatibility.
SN74AHC1G125DBVR (TI)	Same electrical specs; SOT-23-5 (SOT23-5) package with larger 2.9 mm × 1.6 mm footprint and θ_JA = 195 °C/W.	Superior thermal performance for sustained 8 mA output in ambient >85°C environments (e.g., engine bay modules).	Select when thermal dissipation >100 mW is required or existing PCB has SOT-23 land pattern.

Compared with 74LVC1G125GW and SN74AHC1G125DBVR, the 74AHC1G125SE-7 offers optimal balance of 5V tolerance, low leakage (<2.5 µA), and compact SOT353 size-ideal for space- and power-constrained portable electronics where 2.0–5.5V interoperability is mandatory.

Availability

74AHC1G125SE-7 is available at Aetrix Electronics and suitable for USB peripheral interface, industrial sensor hub, portable media player UI, and automotive infotainment display applications requiring stable component supply, consistent parametric performance, and RoHS-compliant packaging.

Supply support for 74AHC1G125SE-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, energy-efficient solutions for consumer, industrial, and automotive markets.

The 74AHC logic family targets low-power, wide-supply-range digital interfacing-designed specifically for voltage translation, bus buffering, and noise-immune signal conditioning in portable and mixed-voltage systems.

FAQ

What is the maximum recommended operating temperature for continuous use?

The 74AHC1G125SE-7 is rated for continuous operation from −40°C to +125°C ambient temperature. Junction temperature must remain ≤150°C; with θ_JA = 430 °C/W and typical power dissipation <1 mW, derating is not required below 85°C ambient in standard FR-4 layouts.

Can the OE pin be left floating during operation?

No. The OE pin must be actively driven to either V_CC or GND. Floating OE may cause undefined output states due to internal leakage paths, risking bus contention. Per datasheet Note 3, unused inputs should be tied to V_CC or GND with ≤1 kΩ resistor.

Does this device support 5V-tolerant inputs when powered from 3.3V?

Yes. Absolute maximum input voltage is −0.5 V to 6.5 V regardless of V_CC. When V_CC = 3.3 V, VIH(min) = 2.1 V and VIL(max) = 0.9 V, allowing safe interfacing with 5V logic outputs without external clamping diodes.

Is the SOT353 package lead-free and RoHS compliant?

Yes. The 74AHC1G125SE-7 uses lead-free finish and complies with EU Directive 2002/95/EC (RoHS), including all applicable exemptions. The molding compound is halogen-free (no Br or Sb), per Diodes Inc. AP02001 specification.

74AHC1G125SE-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: 74AHC

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:: 8mA, 8mA

Voltage - Supply:: 2V ~ 5.5V

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-353

74AHC1G125SE-7 FAQ

1.How can I place an order for 74AHC1G125SE-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74AHC1G125SE-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 74AHC1G125SE-7 reliable?

The price and inventory of 74AHC1G125SE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC1G125SE-7 is usually 5 days.

3.What payment methods are accepted for 74AHC1G125SE-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC1G125SE-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74AHC1G125SE-7?

74AHC1G125SE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74AHC1G125SE-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 74AHC1G125SE-7?

For technical support, including 74AHC1G125SE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC1G125SE-7 requirements.

6.How does Aetrix verify that 74AHC1G125SE-7 is sourced from the original manufacturer or authorized distributors?

All 74AHC1G125SE-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 74AHC1G125SE-7 meets industry standards.

7.What is the process for return or replacement of 74AHC1G125SE-7?

All 74AHC1G125SE-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC1G125SE-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 74AHC1G125SE-7 part is unused and in its original packaging.

Return procedure for 74AHC1G125SE-7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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