74HCT1G125GW-Q100H

Overview

The Nexperia 74HCT1G125GW-Q100H is a single non-inverting buffer and line driver featuring a 3-state output, housed in a TSSOP5 (SOT353-1) package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an ambient temperature range from -40 °C to +125 °C. The device utilizes TTL input switching levels and includes clamp diodes on the inputs. It has been qualified to AEC-Q100 Grade 1 standards for automotive applications.

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards
• TTL input switching levels compatible with standard logic families
• High noise immunity and symmetrical output impedance characteristics

Applications

• Automotive electronic systems requiring robust signal buffering
• Bus driver applications utilizing 3-state outputs
• Line driving circuits operating at 5 V logic levels

Procurement Notes

Verify the specific suffix 'H' against the manufacturer's current documentation to confirm packaging details such as reel or cut tape specifications. Ensure the ordering code matches the required TSSOP5 package variant. Confirm compliance requirements including RoHS status directly with the supplier before finalizing procurement orders.

Selection Notes

Select this component when TTL-compatible input thresholds are required alongside CMOS drive capabilities. The wide operating temperature range up to +125 °C makes it suitable for demanding environments. Verify that the 3-state output control via the OE pin aligns with the system bus architecture design requirements.

Part Context

This part belongs to the Nexperia 74HCT1G125-Q100 series of single-buffer devices. It shares functional similarities with other members of the 74HC/HCT family but is specifically optimized for 5 V operation with TTL inputs. The Q100 designation indicates its qualification for automotive-grade reliability and durability standards.

Replacement Considerations

Direct replacements include the 74HCT1G125GV-Q100H, which utilizes the SC-74A package instead of TSSOP5. Other variants within the same logical family may be considered if package footprint differences are acceptable in the design.

FAQ

What is the function of the OE pin?

The OE pin serves as the output enable input. When held LOW, the output follows the data input; when HIGH, the output assumes a high-impedance OFF-state.

Does the device support voltages exceeding VCC?

Yes, the inputs include clamp diodes, allowing the use of current-limiting resistors to interface with voltages higher than the supply voltage VCC.