74AHCT126D,118

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74AHCT126D,118 is a quad buffer and line driver belonging to the AHCT logic family. It features four non-inverting channels with three-state outputs controlled by dedicated output enable inputs. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports low static current consumption of 2 uA. It provides balanced propagation delays of 7.5 ns at operating voltages between 4.5 V and 5.5 V. The component delivers an output current capability of 8 mA for both high and low states. It is housed in a surface-mount SOIC-14 package and is rated for operation across an extended temperature range from -40 °C to +125 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides four non-inverting buffer channels with independent three-state output control via active-low enable inputs.
• Ensures compatibility with TTL input levels while maintaining CMOS performance characteristics through the AHCT logic architecture.
• Incorporates Schmitt-trigger action on all inputs to improve noise immunity and tolerance for slower signal rise and fall times.

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented memory and register applications requiring isolated data transmission
• Clock distribution circuits utilizing buffered signals
• Mixed-voltage interface translation between different logic families

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering code 74AHCT126D,118 against official Nexperia documentation to confirm package type and marking details. Ensure that the required operating temperature range and electrical specifications align with the target application design constraints before finalizing procurement decisions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a quad buffer with three-state outputs and TTL-compatible input thresholds is required. It serves as a direct alternative to standard 74HCT126 devices but offers improved switching speeds and lower power dissipation inherent to the AHC technology platform.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Nexperia 74AHCT series, which combines the high-speed performance of Advanced High-CMOS technology with TTL-compatible input levels. The 74AHCT126 specifically functions as a quad buffer with three-state outputs, designed for efficient data bus management in digital systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74AHCT125D,118 is a functional substitute offering identical pinout and electrical characteristics, distinguished only by its active-high output enable requirement rather than active-low.

Buffers, Drivers, Receivers, Transceivers FAQ

What determines the state of the outputs?

The outputs assume a high-impedance OFF-state when the output enable input (nOE) is held LOW. When nOE is HIGH, the buffers transmit the input signals to the outputs.

How does the device handle overvoltage conditions?

The inputs are overvoltage tolerant, allowing them to accept voltages higher than the supply voltage (VCC). This feature facilitates their use as translators in mixed-voltage environments.