74AHCT125D,118

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74AHCT125D,118 is a quad buffer and line driver featuring 3-state outputs controlled by active-low output enable inputs. It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes TTL input levels. The device provides balanced propagation delays with a maximum of 9.5 ns at 50 pF load capacitance. It is housed in an SO14 plastic small outline package (SOT108-1) with a body width of 3.9 mm. The component supports an ambient operating temperature from -40 °C to +125 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides four non-inverting buffers with independent 3-state control for bus isolation
• Features overvoltage tolerant inputs allowing operation in mixed-voltage environments
• Includes Schmitt-trigger action on all inputs for high noise immunity
• Offers robust ESD protection exceeding 2000 V via Human Body Model standards

Buffers, Drivers, Receivers, Transceivers Applications

• Data bus buffering and signal driving in digital systems
• Voltage level translation between TTL and CMOS logic domains
• Isolation of data lines in multi-drop communication architectures

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against current Nexperia documentation to confirm package type and tape-and-reel specifications. Confirm that the required temperature grade matches the application environment, as the datasheet specifies performance across different thermal ranges. Ensure design compliance with absolute maximum ratings to prevent permanent damage during operation or handling.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing TTL-level sources with 5V CMOS loads requiring high drive capability. The AHCT series ensures compatibility with standard TTL logic thresholds while maintaining low power consumption typical of CMOS technology. Consider the SO14 package dimensions for PCB layout constraints and verify that the 3-state functionality aligns with the system's bus management requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74AHCT125 family of quad buffers with 3-state outputs. It shares functional similarities with other members like the 74AHC125 but differs in input threshold characteristics, specifically utilizing TTL-compatible inputs instead of CMOS levels. The 'D' designation indicates the SO14 surface-mount package variant.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74AHCT125PW serves as a direct pin-compatible replacement offering the same logical function in a TSSOP14 package. Other variants within the 74AHCT125 family provide alternative packaging options such as DHVQFN14 while maintaining identical electrical specifications and operational behavior.