Is there a pin-compatible replacement for 74LVC1G125GW,125?

No exact pin-for-pin compatible replacement has been identified. The 74LVC1G126GW,125 has the same pinout but requires an inverted signal on the output enable pin, preventing it from being a direct drop-in substitute.

What risks should I check before replacing 74LVC1G125GW,125?

Key risks include differences in supply voltage range, logic input levels (e.g., LVC vs. AHCT families), and control pin logic (e.g., active-high vs. active-low enable). Always verify the candidate's datasheet against your circuit's requirements.

74LVC1G125GW,125 Alternatives, Datasheet & Cross Reference | Nexperia USA Inc.

74LVC1G125GW,125 is a single 3-state buffer in a 5-TSSOP package, operating from 1.65V to 5.5V. While no direct drop-in replacement was found, several functional alternatives exist that require careful review of their electrical and logical differences.

AI replacement insight

Electrical riskhigh

Candidates have different voltage ranges or input logic families, requiring full circuit validation.

Package riskmedium

While packages match, pin function differences (inverted logic) create a high risk of malfunction if not addressed.

Can it be replaced directly?

No, there is no direct drop-in replacement for 74LVC1G125GW,125 among the candidates reviewed. All require circuit or logic validation.

Best replacement path

The 74LVC1G126GW,125 is the closest option if the inverted enable logic can be accommodated. Otherwise, a new part search is needed.

Main risk

The primary risks are mismatched control logic (inverted enable pin) and incompatible electrical characteristics like voltage range and input thresholds.

Recommended alternatives

A very close alternative with matching specs, but the output enable logic is inverted (active-high vs. active-low).

View details

Alternative comparison matrix

Feature / factor	74LVC1G125GW,125	74LVC1G126GW,125	74AHCT1G125GW,125	Compatibility / risk
Package	5-TSSOP	5-TSSOP	5-TSSOP	5-TSSOP — Package matches.; 74AHCT1G125GW,125: Package matches.
Pinout	Active-Low	Active-High	-	Active-High — Output Enable (OE) logic is inverted. Not a drop-in replacement.
Voltage	1.65 V ~ 5.5 V	1.65 V ~ 5.5 V	4.5 V to 5.5 V	1.65 V ~ 5.5 V / 4.5 V to 5.5 V — Supply voltage range matches.; 74AHCT1G125GW,125: Candidate has a much narrower supply voltage range.
Temperature	-40 °C ~ +125 °C	-40 °C ~ 125 °C	-40 °C to +125 °C	-40 °C ~ 125 °C / -40 °C to +125 °C — Operating temperature range matches.; 74AHCT1G125GW,125: Operating temperature range matches.
Interface	74LVC (CMOS)	-	74AHCT (TTL compatible)	74AHCT (TTL compatible) — Different logic family; AHCT is for 5V TTL levels.

Application & sourcing insights

Questions & answers

The 74LVC1G126GW,125 is the closest alternative, sharing the same package and electrical specs, but it has an inverted output enable logic. For 5V systems, 74AHCT1G125GW,125 is an option but has a limited voltage range.