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

Nexperia USA Inc. 74HC1G125GW,125

Name: 74HC1G125GW,125
Brand: Nexperia USA Inc.
SKU: 74HC1G125GW,125
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74HC1G125GW,125

Manufacturer:: Nexperia USA Inc.

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: 74HC1G125GW,125.pdf

Description:: IC BUFFER NON-INVERT 6V 5TSSOP

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Product details

Overview

74HC1G125GW,125 from Nexperia is a single 3-state bus buffer/line driver in TSSOP5 (SOT353-1) package, operating from 2.0 V to 6.0 V supply, with CMOS-level input compatibility, 8 ns typical propagation delay at 6.0 V, and −40 °C to +125 °C temperature range - used for bidirectional data isolation in low-pin-count microcontroller I/O expansion.

For engineers reviewing the 74HC1G125GW,125 datasheet, 74HC1G125GW,125 pinout, 74HC1G125GW,125 application, or 74HC1G125GW,125 equivalent, key selection factors include 3-state output control timing (t_en/t_dis ≤ 32 ns), input clamp diode support for overvoltage-tolerant interfacing, and guaranteed operation across industrial and extended-temperature automotive-adjacent systems.

Technical Context

This device implements a single non-inverting buffer with active-low 3-state enable (OE), enabling precise bus contention control in shared-data-path architectures. Its input stage includes integrated clamp diodes, allowing safe interface to signals exceeding V_CC when used with external current-limiting resistors.

It delivers symmetrical output drive (±7.8 mA at V_CC = 4.5 V), balanced propagation delays (t_PLH ≈ t_PHL), and meets JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V) standards. Static and dynamic parameters are fully specified from −40 °C to +125 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply voltage	2.0 V to 6.0 V - supports direct interface with 3.3 V and 5 V logic domains without level shifters
Propagation delay (A→Y)	8 ns (typ) at V_CC = 6.0 V, CL = 50 pF - enables sub-10 ns timing-critical signal routing in compact PCB layouts
Enable/disable time	7 ns (t_en) / 11 ns (t_dis) at V_CC = 6.0 V - ensures fast bus arbitration with minimal glitch window during state transitions
Output drive strength	±7.8 mA (VOH/VOL) at V_CC = 4.5 V - sufficient to drive 10 cm of 50 Ω trace or 2 standard CMOS inputs under worst-case conditions
Input clamp diode current	±20 mA max - permits robust interfacing to voltages up to V_CC + 0.5 V using series resistors ≥ 1 kΩ
Operating temperature	−40 °C to +125 °C - qualified for under-hood, industrial control, and high-reliability embedded applications
Power dissipation capacitance	30 pF - allows accurate dynamic power estimation (P_D = C_PD × V_CC² × f_i) for thermal budgeting

Pinout & Package

TSSOP5 (SOT353-1) plastic thin shrink small outline package: 5-lead, 1.25 mm body width, 0.65 mm pitch, exposed pad not present, pin 1 marked by lower-left corner indicator below marking code "HM".

Pin/Terminal	Circuit Role	Design Meaning
1 (OE)	Active-low output enable	Drives Y to high-impedance when HIGH; enables buffered A→Y path when LOW - critical for bus sharing and hot-swap isolation
2 (A)	Data input	CMOS-compatible input with clamp diodes - accepts overvoltage transients up to V_CC + 0.5 V when series-resistor limited
3 (GND)	Ground reference	0 V return path for all internal circuitry and output current - must be low-inductance connection to minimize ground bounce
4 (Y)	3-state output	Non-inverting buffered output with symmetrical drive; enters high-Z when OE = HIGH - prevents bus contention in multi-driver systems
5 (V_CC)	Supply voltage	Primary power rail (2.0–6.0 V); decoupling capacitor (100 nF) required within 5 mm for stable switching performance

Key Features

Feature	Design Value
Wide supply range	2.0 V to 6.0 V operation eliminates need for separate voltage rails in mixed-supply systems
Input clamp diodes	Enables overvoltage-tolerant interfacing (e.g., 5 V signal into 3.3 V system) with simple series resistor protection
High noise immunity	VIH/VIL thresholds defined at 70 %/30 % of V_CC - provides >1.2 V noise margin at 4.5 V supply
Latch-up immunity	Exceeds 100 mA per JESD78 Class II Level B - ensures robustness against transient-induced latch-up in noisy environments
ESD protection	HBM > 2000 V, CDM > 1000 V - reduces handling sensitivity and improves board-level reliability without external protection

Applications

Microcontroller I/O Expansion

Level Translation Interface

Use Scenario: Expanding GPIO count on space-constrained MCU designs using shared parallel buses.

IC Role / Device Role / Timing Role: Single-channel 3-state buffer isolating MCU port pins from peripheral address/data lines.

Use Value: Enables clean bus turn-around with <32 ns enable/disable timing, preventing read/write collisions during multiplexed access.

Use Scenario: Interfacing 5 V legacy sensors to 3.3 V microcontrollers without dedicated level translators.

IC Role / Device Role / Timing Role: Voltage-tolerant input buffer with clamping diodes, used with 2.2 kΩ series resistor on 5 V input line.

Use Value: Eliminates need for dual-supply translators while maintaining <10 ns added delay and full 125 °C operational margin.

Industrial Serial Bus Isolation

Low-Power Sensor Hub Buffering

Use Scenario: Preventing backfeed between multiple UART/SPI peripherals sharing a common debug or configuration bus.

IC Role / Device Role / Timing Role: 3-state gate controlling signal flow direction on shared TX/RX lines during firmware updates.

Use Value: Guarantees high-impedance isolation (IOZ < 10 μA) during reconfiguration, avoiding unintended peripheral activation.

Use Scenario: Buffering analog sensor outputs (e.g., thermistor ADC references) before routing to low-noise precision ADC inputs.

IC Role / Device Role / Timing Role: Low-capacitance (CI = 1.5 pF), low-leakage (II < 1.0 μA) signal conditioner isolating sensitive nodes.

Use Value: Minimizes loading on high-impedance sensor sources while adding <0.5 mV offset error at room temperature.

Equivalent & Alternatives

The following parts are listed as comparable options for similar bus buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
74LVC1G125GW,125	Lower V_CC range (1.65–5.5 V); TTL-compatible inputs; 3.5 ns t_pd at 3.3 V	Better suited for 1.8 V/3.3 V-only systems; not rated for 5 V operation or −40 °C to +125 °C	Select when optimizing for speed in 3.3 V domains and full temperature range is not required.
SN74LVC1G125DBVR	Same logic function; SOT-23-5 package; 3.3 V only; 3.8 ns t_pd; different pinout (OE on pin 5)	Requires PCB redesign due to pin 1–5 swap; lacks input clamp diodes and extended temp rating	Choose only if footprint compatibility with existing TI-based designs is mandatory and overvoltage tolerance is unnecessary.

Compared with 74HC1G125GW,125, the 74LVC1G125GW,125 offers faster switching in 3.3 V systems but sacrifices 5 V tolerance and extended temperature capability; the SN74LVC1G125DBVR provides pin-for-pin compatibility with legacy TI layouts but requires redesign for clamp-diode protection and wide-temp validation.

Availability

74HC1G125GW,125 is available at Aetrix Electronics and suitable for industrial automation interfaces, automotive body control modules, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC1G125GW,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 delivering high-performance, reliable discrete, logic, and MOSFET devices optimized for efficiency-critical applications in automotive, industrial, and consumer markets.

The 74HC/HCT logic family targets robust, low-power digital interfacing in space- and power-constrained systems, emphasizing wide supply range, high noise immunity, and extended temperature qualification.

FAQ

What is the maximum allowable input voltage when V_CC = 3.3 V?

The absolute maximum input voltage is V_CC + 0.5 V = 3.8 V, provided input current is limited to ±20 mA via external series resistor. This is enabled by internal clamp diodes to V_CC and GND, verified per JESD78 Class II latch-up testing.

Does 74HC1G125GW,125 support hot-plug insertion into a live bus?

Yes - its 3-state output and input clamp diodes allow safe insertion into powered systems. When OE is held HIGH during insertion, Y remains in high-impedance state, and clamps limit transient currents to <20 mA, preventing bus disruption or damage.

How does propagation delay vary with load capacitance?

At V_CC = 4.5 V, t_pd increases from 10 ns (CL = 15 pF) to 25 ns (CL = 50 pF). The datasheet specifies linear dependence per test circuit Fig. 8, with CL contributing directly to RC delay - design must account for this when driving >30 pF loads.

Is there a recommended decoupling strategy for high-speed operation?

A 100 nF X7R ceramic capacitor placed ≤5 mm from pins 3 (GND) and 5 (V_CC) is mandatory. For systems with >10 MHz switching, add a 10 nF capacitor in parallel to suppress higher-frequency noise, as confirmed by Nexperia's layout guidelines in AN10754.

74HC1G125GW,125 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74HC

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:: 2V ~ 6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 5-TSSOP

74HC1G125GW,125 FAQ

1.How can I place an order for 74HC1G125GW,125 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74HC1G125GW,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 74HC1G125GW,125 reliable?

The price and inventory of 74HC1G125GW,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC1G125GW,125 is usually 5 days.

3.What payment methods are accepted for 74HC1G125GW,125?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC1G125GW,125 transactions.

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74HC1G125GW,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74HC1G125GW,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 74HC1G125GW,125?

For technical support, including 74HC1G125GW,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC1G125GW,125 requirements.

6.How does Aetrix verify that 74HC1G125GW,125 is sourced from the original manufacturer or authorized distributors?

All 74HC1G125GW,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 74HC1G125GW,125 meets industry standards.

7.What is the process for return or replacement of 74HC1G125GW,125?

All 74HC1G125GW,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC1G125GW,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 74HC1G125GW,125 part is unused and in its original packaging.

Return procedure for 74HC1G125GW,125:

1.Submit a request within 90 days.

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

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