74HCT1G125GW,165

Overview

The Nexperia 74HCT1G125GW,165 is a single-channel bus buffer and line driver featuring three-state outputs, housed in a TSSOP5 (SOT353-1) package. It operates within a supply voltage range of 4.5 V to 5.5 V. The device accepts TTL-level inputs and provides non-inverting logic functionality. Key electrical parameters include a maximum propagation delay of 30 ns at 4.5 V and an additional supply current of up to 850 μA when the input is at 2.1 V.

Feature Summary

• Provides three-state output capability for effective bus line management
• Accepts TTL-level input signals for direct interfacing with digital logic systems
• Includes internal clamp diodes on inputs to support voltage levels exceeding VCC

Applications

• Bus-oriented memory and address drivers
• Clock buffering and distribution circuits
• Transmit buffers for high-speed data transmission lines

Procurement Notes

Verify that the specific ordering suffix '165' corresponds to the standard TSSOP5 package configuration documented in the official datasheet. Confirm that the required operating temperature range aligns with the specified -40 °C to +125 °C limits. Ensure design compliance with the absolute maximum ratings regarding supply voltage and clamping currents to prevent permanent device damage.

Selection Notes

Select this component when a single-channel buffer with three-state control is required for 5 V logic applications. The HCT series designation ensures compatibility with TTL input thresholds. Verify that the TSSOP5 package dimensions meet the available PCB footprint constraints. Consider the power dissipation derating characteristics if the ambient temperature exceeds 74 °C.

Part Context

This part belongs to the Nexperia 74HCT1Gxx family of single-function logic gates designed for surface-mount assembly. The 74HCT1G125 variant specifically functions as a buffer/line driver. It shares the same pinout and general physical characteristics as other members of the 74HC/HCT1G series, differing primarily in its logical function and input threshold specifications.

Replacement Considerations

The 74HCT1G125GV,125 serves as a functional equivalent utilizing the SC-74A (SOT753) package instead of the TSSOP5 form factor. Both devices maintain identical electrical performance and pin configurations, allowing for potential board layout adjustments during substitution.