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

Nexperia USA Inc. 74HC2G125DC,125

Name: 74HC2G125DC,125
Brand: Nexperia USA Inc.
SKU: 74HC2G125DC,125
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74HC2G125DC,125

Manufacturer:: Nexperia USA Inc.

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 8-VFSOP (0.091", 2.30mm Width)

Datasheet:: 74HC2G125DC,125.pdf

Description:: IC BUFFER NON-INVERT 6V 8VSSOP

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Product details

Overview

74HC2G125DC,125 from Nexperia is a dual 3-state buffer/line driver IC in VSSOP8 (SOT765-1) package, operating from 2.0 V to 6.0 V supply, featuring CMOS-level inputs, ±20 mA output drive capability, and guaranteed operation from –40 °C to +125 °C - used for bidirectional bus interfacing and signal isolation in industrial control logic.

For engineers reviewing the 74HC2G125DC,125 datasheet, 74HC2G125DC,125 pinout, 74HC2G125DC,125 application, or 74HC2G125DC,125 equivalent, key selection criteria include 3-state enable timing (t_en ≤ 27 ns @ V_CC = 4.5 V), input clamp diode support for overvoltage-tolerant interfacing, low ICC (≤20 μA @ V_CC = 6.0 V), and VSSOP8 footprint compatibility with space-constrained PCB layouts.

Technical Context

This device implements two independent non-inverting buffers, each with active-low 3-state output enable (1OE, 2OE). Each channel supports high-impedance OFF-state (Z) when OE is HIGH, and true logic pass-through (L→L, H→H) when OE is LOW - enabling shared-bus arbitration without external pull-ups or direction control logic.

Input clamp diodes allow safe interface to signals exceeding V_CC when used with current-limiting resistors. Static characteristics guarantee VIH ≥ 3.15 V and VIL ≤ 1.35 V at V_CC = 4.5 V, ensuring robust noise immunity (>1.8 V DC noise margin) across its full temperature range.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	2.0 V to 6.0 V - supports mixed-voltage system interfacing (e.g., 3.3 V logic driving 5 V bus)
Propagation Delay	11 ns typical (V_CC = 4.5 V, CL = 50 pF) - enables reliable operation up to ~30 MHz data rates
Output Drive	±7.8 mA (V_CC = 4.5 V) - sufficient to drive 50 pF loads with <23 ns rise/fall times
Enable/Disable Time	t_en/t_dis ≤ 27 ns / 30 ns (V_CC = 4.5 V) - ensures clean bus turnaround with minimal contention window
Operating Temperature	–40 °C to +125 °C - qualified for under-hood industrial and extended-temperature embedded applications
Input Clamp Current	±20 mA - permits direct connection to voltages up to V_CC + 0.5 V using series resistors
Power Dissipation	250 mW max (Tamb ≤ 99 °C, VSSOP8) - derates linearly at 4.9 mW/K above 99 °C

Pinout & Package

VSSOP8 plastic very thin shrink small outline package (SOT765-1); 8 leads; body width 2.3 mm; pin 1 indicator located below marking code in lower-left corner.

Pin/Terminal	Circuit Role	Design Meaning
1, 7	1OE, 2OE	Active-low 3-state enable inputs - drive HIGH to disable outputs (Z-state), LOW to enable pass-through
2, 5	1A, 2A	Data inputs - accept CMOS-level signals; internal clamp diodes protect against overvoltage
3, 6	1Y, 2Y	Buffered non-inverting outputs - drive loads up to ±7.8 mA with rail-to-rail swing
4	GND	Ground reference (0 V) - must be low-impedance return path for all I/O and supply currents
8	V_CC	Positive supply - decoupling capacitor (100 nF) required within 5 mm of pin for stable switching

Key Features

Feature	Design Value
Wide supply range	2.0 V to 6.0 V - eliminates need for level shifters between 2.5 V, 3.3 V, and 5 V subsystems
Input clamp diodes	Enables safe interface to signals up to V_CC + 0.5 V using external current-limiting resistors
High noise immunity	DC noise margin >1.8 V at V_CC = 4.5 V - suppresses false triggering in electrically noisy environments
Low static power	I_CC ≤ 20 μA at V_CC = 6.0 V - reduces quiescent power in always-on monitoring circuits
Latch-up immunity	Exceeds 100 mA per JESD78 Class II Level B - prevents destructive latch-up during transient overvoltage events

Applications

Industrial PLC I/O Expansion

USB Hub Signal Isolation

Use Scenario: Isolating microcontroller GPIOs from high-noise 24 V fieldbus lines in programmable logic controllers.

IC Role / Device Role / Timing Role: Dual buffer provides galvanically isolated signal conditioning and bus contention prevention via 3-state control synchronized to scan cycle.

Use Value: Enables direct connection of 3.3 V MCU pins to 5 V tolerant backplane without external level shifters or protection circuitry.

Use Scenario: Preventing signal reflections and crosstalk between upstream USB 2.0 host controller and downstream hub ports.

IC Role / Device Role / Timing Role: Acts as a controlled impedance repeater with sub-30 ns enable/disable timing to eliminate bus contention during port enumeration.

Use Value: Maintains signal integrity across split USB traces while supporting hot-plug detection via fast 3-state switching.

Automotive Body Control Module

Test Equipment Digital Pattern Generator

Use Scenario: Driving multiple CAN transceiver enable lines and sensor bias supplies in vehicle body electronics.

IC Role / Device Role / Timing Role: Provides synchronized 3-state control of multiple peripheral enables using single MCU GPIO and inverted logic.

Use Value: Reduces MCU pin count by 2× while maintaining -40 °C to +125 °C operational reliability without derating.

Use Scenario: Generating precise, glitch-free digital stimulus waveforms for IC functional testing on ATE platforms.

IC Role / Device Role / Timing Role: Buffers pattern generator outputs to drive capacitive DUT loads with matched propagation delay across both channels.

Use Value: Ensures <1 ns skew between dual outputs, critical for setup/hold timing validation of synchronous devices.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 3-state buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
74HCT2G125DC,125	TTL-compatible inputs (VIH = 2.0 V min), identical pinout and timing	Better suited for legacy 5 V TTL systems; higher input current draw (~375 μA per input)	Select when interfacing with standard TTL outputs or where input threshold matching is critical
SN74LVC2G125DCUR	Lower V_CC range (1.65 V–5.5 V), higher speed (t_pd = 3.7 ns typ), same VSSOP8 package	Optimized for battery-powered 1.8 V/3.3 V systems; lacks input clamp diodes	Select for ultra-low-voltage portable designs requiring faster edge rates and lower ICC

Compared with 74HCT2G125DC,125, this HC version offers lower static power and wider voltage flexibility but requires CMOS-level inputs; versus SN74LVC2G125DCUR, it trades speed and low-voltage operation for robust overvoltage tolerance and broader industrial temperature compliance.

Availability

74HC2G125DC,125 is available at Aetrix Electronics and suitable for industrial automation, test equipment, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC2G125DC,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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions for industrial, automotive, and consumer markets.

The 74HC2G125 belongs to Nexperia's HC-series logic family, designed for robust, low-power, wide-supply-voltage digital interfacing in harsh-environment applications demanding extended temperature operation and ESD resilience.

FAQ

What is the maximum clock frequency supported by the 74HC2G125DC,125?

The 74HC2G125DC,125 is not a clocked device but a combinational buffer; its usable data rate depends on propagation delay and load. With t_pd ≤ 23 ns (V_CC = 4.5 V, CL = 50 pF), it reliably supports asynchronous digital signals up to ~20 MHz for clean edge transitions and bus turnaround. No internal clock or maximum frequency rating applies.

Can the 74HC2G125DC,125 drive a 100 pF capacitive load?

Yes - though characterized at CL = 50 pF, the device drives 100 pF loads with measurable degradation: t_pd increases to ~35 ns and t_t extends to ~22 ns at V_CC = 4.5 V. Output current remains within spec (±7.8 mA), but layout must minimize trace inductance and use local decoupling to maintain signal integrity.

Does the 74HC2G125DC,125 support hot-swap insertion?

No - the device lacks powered-off protection or I_off isolation. When V_CC = 0 V, inputs and outputs may sink/source current through internal clamps or parasitic paths. Hot-swap requires external series resistors and sequencing control; Nexperia does not specify or guarantee hot-swap behavior for this part.

How does the input clamp diode affect interfacing with 12 V signals?

The internal clamp diodes allow safe interface to signals up to V_CC + 0.5 V only when current is limited externally. For 12 V signals, a series resistor ≥560 Ω is required to restrict IIK to ≤20 mA (per diode), preventing damage. This configuration is validated per datasheet Section 1, but continuous 12 V exposure exceeds absolute max ratings and is not recommended.

74HC2G125DC,125 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74HC

Package/Case:: 8-VFSOP (0.091", 2.30mm Width)

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:: 3-State

Current - Output High, Low:: 7.8mA, 7.8mA

Voltage - Supply:: 2V ~ 6V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-VSSOP

74HC2G125DC,125 FAQ

1.How can I place an order for 74HC2G125DC,125 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74HC2G125DC,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 74HC2G125DC,125 reliable?

The price and inventory of 74HC2G125DC,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC2G125DC,125 is usually 5 days.

3.What payment methods are accepted for 74HC2G125DC,125?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC2G125DC,125 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74HC2G125DC,125?

74HC2G125DC,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74HC2G125DC,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 74HC2G125DC,125?

For technical support, including 74HC2G125DC,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC2G125DC,125 requirements.

6.How does Aetrix verify that 74HC2G125DC,125 is sourced from the original manufacturer or authorized distributors?

All 74HC2G125DC,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 74HC2G125DC,125 meets industry standards.

7.What is the process for return or replacement of 74HC2G125DC,125?

All 74HC2G125DC,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC2G125DC,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 74HC2G125DC,125 part is unused and in its original packaging.

Return procedure for 74HC2G125DC,125:

1.Submit a request within 90 days.

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

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