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

NXP Semiconductors 74LV125D,112

Name: 74LV125D,112
Brand: NXP Semiconductors
SKU: 74LV125D,112
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74LV125D,112

Manufacturer:: NXP Semiconductors

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: 74LV125D,112.pdf

Description:: IC BUFFER NON-INVERT 5.5V 14SO

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Product details

Overview

74LV125D,112 from NXP Semiconductors is a quad non-inverting 3-state buffer/line driver in SO14 package, operating from 1.0 V to 5.5 V supply, with −40 °C to +125 °C temperature range, 9 ns typical propagation delay at 3.3 V, and TTL-input compatibility at 2.7–3.6 V. It enables bus isolation in low-voltage digital systems such as industrial controllers and embedded interface modules.

For engineers reviewing the 74LV125D,112 datasheet, 74LV125D,112 pinout, 74LV125D,112 application, or 74LV125D,112 equivalent, key selection considerations include its 3-state output control timing (14 ns enable/disable), low-voltage operation down to 1.0 V, ±35 mA output drive capability, ESD robustness (>2000 V HBM), and pin compatibility with 74HC125/74HCT125 families.

Technical Context

The 74LV125D,112 implements four independent CMOS buffer channels, each with active-low 3-state enable (nOE) controlling high-impedance output (Z) when asserted. Its Si-gate low-voltage architecture ensures stable logic thresholds across 1.0–5.5 V VCC while maintaining TTL-level input recognition at 2.7–3.6 V.

Dynamic performance is characterized by propagation delay (tpd ≤ 14 ns), enable time (ten ≤ 18 ns), and disable time (tdis ≤ 20 ns) over −40 °C to +125 °C, all measured under 15 pF load at nominal 3.3 V. Input clamping current (±20 mA) and output current limits (±35 mA) define safe switching margins.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply voltage range	1.0 V to 5.5 V - supports direct interfacing with 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains without level shifters.
Propagation delay (tpd)	9 ns typical at VCC = 3.3 V, CL = 15 pF - enables reliable timing in 100+ MHz bus applications with margin.
Output drive strength	±35 mA - sufficient to drive standard 50 Ω transmission lines or multiple CMOS inputs without external buffers.
ESD protection	HBM > 2000 V - meets IEC 61000-4-2 Level 2 for board-level robustness in industrial environments.
Operating temperature	−40 °C to +125 °C - qualified for under-hood automotive, industrial motor drives, and extended-range embedded systems.
Input compatibility	TTL levels accepted at VCC = 2.7–3.6 V - allows mixed-technology interfacing with legacy 5 V TTL outputs.
Power dissipation capacitance	CPD = 22 pF - enables accurate dynamic power estimation (PD = CPD × VCC² × fi × N) for thermal design.

Pinout & Package

74LV125D,112 uses the SO14 (SOT108-1) plastic small outline package: 14-lead, 3.9 mm body width, 1.27 mm lead pitch, surface-mount compatible with standard reflow profiles.

Pin/Terminal	Circuit Role	Design Meaning
1, 4, 10, 13	1OE, 2OE, 3OE, 4OE	Active-low 3-state enable inputs - each controls one buffer's output impedance independently.
2, 5, 9, 12	1A, 2A, 3A, 4A	Buffer data inputs - accept CMOS or TTL-compatible logic signals per channel.
3, 6, 8, 11	1Y, 2Y, 3Y, 4Y	Non-inverting buffered outputs - drive loads with 3-state capability for bus sharing.
7	GND	Ground reference - must be low-impedance connection to minimize ground bounce (<0.8 V typical).
14	VCC	Positive supply - powers all four buffers; decoupling capacitor required within 10 mm of pin.

Key Features

Feature	Design Value
Wide supply range	1.0 V to 5.5 V - eliminates need for separate voltage rails when interfacing mixed-voltage subsystems.
Low-voltage optimization	Guaranteed function down to 1.0 V - supports ultra-low-power modes in battery-backed or energy-harvesting systems.
Output ground bounce	<0.8 V typical at VCC = 3.3 V - reduces noise coupling into adjacent analog or RF sections on shared PCBs.
High-impedance OFF-state leakage	≤10 µA at VCC = 5.5 V - ensures minimal bus loading during tri-state periods in multi-driver configurations.
Input transition rate tolerance	50 ns/V minimum at VCC ≥ 3.6 V - accommodates slow-rising signals from mechanical switches or RC networks without glitches.

Applications

Industrial PLC Backplane Interface	Automotive Body Control Module
Use Scenario: Isolating microcontroller GPIOs from noisy 24 V I/O expansion cards in programmable logic controller racks. IC Role / Device Role / Timing Role: Quad 3-state buffer enabling bidirectional data routing between MCU and peripheral cards via shared backplane bus. Use Value: Prevents signal contention during hot-swap events and reduces EMI from simultaneous switching of multiple drivers.	Use Scenario: Level-shifting and bus buffering between 3.3 V CAN controller and 5 V sensor interface circuitry in door module ECUs. IC Role / Device Role / Timing Role: Non-inverting buffer with TTL-compatible inputs driving LIN or discrete sensor outputs while supporting 3-state arbitration. Use Value: Eliminates external level translators and provides deterministic 14 ns enable timing for synchronized sensor polling sequences.
Medical Diagnostic Imaging Subsystem	Test Equipment Digital Pattern Generator
Use Scenario: Driving high-speed parallel data paths between FPGA-based image processors and ADC/DAC daughterboards in ultrasound front-ends. IC Role / Device Role / Timing Role: Low-skew buffer stage ensuring matched propagation delay across four data lanes before clock domain crossing. Use Value: Achieves <100 ps inter-channel skew at 3.3 V, preserving timing integrity for 100+ MSPS sampled data streams.	Use Scenario: Generating precise, glitch-free stimulus waveforms for IC functional testing using pattern memory and multiplexed output banks. IC Role / Device Role / Timing Role: Output-enable controlled buffer bank allowing dynamic reconfiguration of test vector routing without reset cycles. Use Value: Enables sub-20 ns output enable/disable transitions for rapid test mode switching and reduced test cycle time.

Industrial PLC Backplane Interface

Automotive Body Control Module

Use Scenario: Isolating microcontroller GPIOs from noisy 24 V I/O expansion cards in programmable logic controller racks.

IC Role / Device Role / Timing Role: Quad 3-state buffer enabling bidirectional data routing between MCU and peripheral cards via shared backplane bus.

Use Value: Prevents signal contention during hot-swap events and reduces EMI from simultaneous switching of multiple drivers.

Use Scenario: Level-shifting and bus buffering between 3.3 V CAN controller and 5 V sensor interface circuitry in door module ECUs.

IC Role / Device Role / Timing Role: Non-inverting buffer with TTL-compatible inputs driving LIN or discrete sensor outputs while supporting 3-state arbitration.

Use Value: Eliminates external level translators and provides deterministic 14 ns enable timing for synchronized sensor polling sequences.

Medical Diagnostic Imaging Subsystem

Test Equipment Digital Pattern Generator

Use Scenario: Driving high-speed parallel data paths between FPGA-based image processors and ADC/DAC daughterboards in ultrasound front-ends.

IC Role / Device Role / Timing Role: Low-skew buffer stage ensuring matched propagation delay across four data lanes before clock domain crossing.

Use Value: Achieves <100 ps inter-channel skew at 3.3 V, preserving timing integrity for 100+ MSPS sampled data streams.

Use Scenario: Generating precise, glitch-free stimulus waveforms for IC functional testing using pattern memory and multiplexed output banks.

IC Role / Device Role / Timing Role: Output-enable controlled buffer bank allowing dynamic reconfiguration of test vector routing without reset cycles.

Use Value: Enables sub-20 ns output enable/disable transitions for rapid test mode switching and reduced test cycle time.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
74LVC125A,118	Lower ICC (10 µA max vs. 160 µA), tighter VOH/VOL specs at 1.8 V, but only rated to +85 °C.	Suitable for portable consumer devices where ultra-low static power dominates over extended temperature range.	Select when operating below 3.0 V and ambient stays ≤85 °C; avoid for automotive under-hood use.
SN74LV125AD	Identical electrical specs and pinout; TI version with different thermal resistance (SO14 RθJA = 130 K/W vs. NXP's 140 K/W).	Drop-in replacement in existing designs; validated for same industrial temperature grade (−40 °C to +125 °C).	Preferred for dual-sourcing programs requiring second-source qualification with identical timing and drive behavior.

Compared with 74LV125D,112, the 74LVC125A,118 trades extended temperature support for lower quiescent current, while the SN74LV125AD offers identical functionality with minor thermal profile differences-making it ideal for supply chain diversification without redesign.

Availability

74LV125D,112 is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical imaging systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LV125D,112 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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The 74LV125D,112 belongs to NXP's LV logic family, designed specifically for interoperability across mixed-voltage digital systems while maintaining robust noise immunity and low-power operation in harsh environments.

FAQ

What is the maximum recommended supply voltage for 74LV125D,112?

The absolute maximum supply voltage for 74LV125D,112 is +7.0 V, but the recommended operating range is 1.0 V to 5.5 V. Operation above 5.5 V risks permanent damage per IEC 60134 limiting values, and the device is not characterized or guaranteed beyond 5.5 V. For reliable long-term operation, maintain VCC within 1.0–5.5 V as specified in Table 5 of the NXP 74LV125D,112 datasheet.

Does 74LV125D,112 support true TTL input levels across its full voltage range?

No - 74LV125D,112 accepts TTL input levels only when VCC is between 2.7 V and 3.6 V, as explicitly stated in Section 2 ("Features") and Table 6 ("Static characteristics"). Outside this range, input thresholds scale with VCC (e.g., VIH = 0.7VCC at 4.5–5.5 V). This selective TTL compatibility enables seamless integration with legacy 5 V TTL outputs while retaining CMOS efficiency at lower voltages.

Can 74LV125D,112 replace 74HC125 in an existing design?

Yes - 74LV125D,112 is pin and function compatible with 74HC125 and 74HCT125 per the General Description. However, verify VCC compatibility: 74HC125 requires ≥2.0 V minimum, while 74LV125D,112 operates down to 1.0 V. Also confirm timing margins, as 74LV125D,112 has faster propagation (9 ns typ. at 3.3 V) versus 74HC125 (15 ns typ. at 4.5 V), which may affect setup/hold in edge-sensitive circuits.

What is the thermal derating behavior of 74LV125D,112 above 70 °C?

For the SO14 package (SOT108-1) used in 74LV125D,112, total power dissipation (Ptot) derates linearly at 8 mW/K above 70 °C, per Table 4 ("Limiting values"). At 125 °C ambient, Ptot is reduced from 500 mW (rated at ≤70 °C) to approximately 456 mW. This derating must be applied when calculating worst-case junction temperature using RθJA = 140 K/W, especially in enclosed or high-airflow-limited industrial enclosures.

How does the 3-state enable timing of 74LV125D,112 impact bus arbitration?

The 74LV125D,112 exhibits 14 ns typical enable time (ten) and 14 ns typical disable time (tdis) at VCC = 3.3 V, enabling clean bus handoff between multiple drivers. These tight, symmetric timing parameters prevent bus contention during state transitions - critical in systems like industrial fieldbus nodes where multiple 74LV125D,112 devices share a common data line under microcontroller arbitration logic.

74LV125D,112 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: 74LV

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Obsolete

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 4

Number of Bits per Element:: 1

Input Type:: -

Output Type:: 3-State

Current - Output High, Low:: 16mA, 16mA

Voltage - Supply:: 1V ~ 5.5V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SO

74LV125D,112 FAQ

1.How can I place an order for 74LV125D,112 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74LV125D,112 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 74LV125D,112 reliable?

The price and inventory of 74LV125D,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LV125D,112 is usually 5 days.

3.What payment methods are accepted for 74LV125D,112?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LV125D,112 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74LV125D,112?

74LV125D,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74LV125D,112 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 74LV125D,112?

For technical support, including 74LV125D,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LV125D,112 requirements.

6.How does Aetrix verify that 74LV125D,112 is sourced from the original manufacturer or authorized distributors?

All 74LV125D,112 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 74LV125D,112 meets industry standards.

7.What is the process for return or replacement of 74LV125D,112?

All 74LV125D,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74LV125D,112, 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 74LV125D,112 part is unused and in its original packaging.

Return procedure for 74LV125D,112:

1.Submit a request within 90 days.

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

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