74HCT1G126GW,125

Overview

The Nexperia 74HCT1G126GW,125 is a single bus buffer and line driver featuring a three-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 accepts TTL-level inputs and provides balanced propagation delays with symmetrical output impedance. Static characteristics include a maximum input leakage current of 1.0 μA at 5.5 V and a maximum supply current of 20 μA.

Feature Summary

• Provides non-inverting buffering with high-impedance OFF-state control via the OE pin
• Features clamp diodes on inputs to allow interfacing with voltages exceeding VCC using current-limiting resistors
• Ensures high noise immunity and low power dissipation through CMOS technology
• Includes ESD protection compliant with JEDEC standards for HBM and CDM

Applications

• Memory address buffering
• Clock distribution circuits
• Driving capacitive loads in digital systems

Procurement Notes

Verify that the specific suffix 'GW' corresponds to the TSSOP5 plastic thin shrink small outline package with a body width of 1.25 mm. Confirm the marking code 'TN' matches the required identification. Ensure the operating environment remains within the specified -40 °C to +125 °C temperature range and that supply voltage does not exceed 5.5 V to maintain recommended operating conditions.

Selection Notes

Select this component when TTL-compatible input levels are required alongside a wide supply voltage capability up to 6.0 V. The 74HCT1G126 differs from the HC variant by its specific input threshold levels designed for direct interface with TTL logic. Consider the TSSOP5 package dimensions if board space is constrained, noting the 1.25 mm body width.

Part Context

This part belongs to the Nexperia 74HCT1G series of single-gate logic devices. It shares functional similarities with the 74HC1G126 but utilizes HCT input thresholds. The device is part of a broader family of bus buffers and line drivers designed for general-purpose digital applications requiring signal isolation or driving capability.

Replacement Considerations

The 74HC1G126GW,125 serves as a logical alternative if CMOS input levels are acceptable instead of TTL. Other variants such as the 74HCT1G125GV offer similar functionality in a different package type.