74HCT1G125GW,125

Overview

The Nexperia 74HCT1G125GW,125 is a single non-inverting buffer and line driver featuring three-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V and accepts TTL-level inputs. The device provides balanced propagation delays and symmetrical output impedance. It is housed in a TSSOP5 plastic thin shrink small outline package (SOT353-1) with five leads and a body width of 1.25 mm. The component supports an ambient operating temperature from -40 °C to +125 °C.

Feature Summary

• Features a single non-inverting buffer with three-state output controlled by an active LOW enable input.
• Accepts TTL-level input signals while maintaining CMOS low power dissipation characteristics.
• Includes input clamp diodes to allow interfacing with voltages exceeding the supply voltage using current limiting resistors.

Applications

• Bus buffering applications requiring high noise immunity
• Line driving for digital signal transmission
• Interface circuits utilizing current limiting resistors for over-voltage protection

Procurement Notes

Verify that the specific part number suffix matches the required package type and temperature range. Confirm the logic family designation corresponds to TTL input levels rather than CMOS levels. Ensure the ordering information aligns with the correct product data sheet revision to avoid discrepancies in electrical specifications or marking codes.

Selection Notes

Select this component when TTL-compatible input switching levels are required alongside three-state bus control capabilities. The device is suitable for designs needing balanced propagation delays and symmetrical output impedance. Consider the TSSOP5 package dimensions if space constraints exist on the printed circuit board layout.

Part Context

This component belongs to the 74HCT1G series of single-gate logic devices manufactured by Nexperia. It shares functional similarities with the 74HC1G125 but differs in input voltage thresholds, specifically supporting TTL logic levels. The series is designed for general-purpose buffering and line driving tasks in digital electronic systems.

Replacement Considerations

Direct substitutes include the 74AHCT1G125SE-7, 74AHCT1G125DBVRE4, 74AHCT1G125DBVRG4, and 74AHCT1G125DBVTG4.

FAQ

What is the function of the OE pin?

The OE pin is the output enable input which is active LOW. When HIGH, it forces the output into a high-impedance OFF-state.

Can the inputs interface with voltages higher than VCC?

Yes, the inputs include clamp diodes, enabling the use of current limiting resistors to interface with voltages exceeding VCC.