74HC126DB,112

Overview

The Nexperia 74HC126DB,112 is a quad buffer and line driver featuring three-state outputs controlled by active HIGH output enable inputs (nOE). It operates within a supply voltage range of 2.0 V to 6.0 V and utilizes an SSOP-14 package. The device provides non-inverting logic with high noise immunity and low power dissipation. Static characteristics include input leakage currents up to ±1.0 μA at maximum temperatures and supply currents up to 160 μA. Dynamic performance specifies propagation delays ranging from 9 ns to 30 ns depending on voltage and temperature conditions.

Feature Summary

• Quad buffer/line driver with three-state outputs controlled by active HIGH enable inputs
• Wide supply voltage operation from 2.0 V to 6.0 V compliant with JEDEC standards
• High noise immunity and CMOS low power dissipation characteristics
• ESD protection exceeding 2000 V per Human Body Model and 1000 V per Charged Device Model

Applications

• Bus-oriented transmissions
• Clock buffering and distribution
• Memory address/data bus drivers

Procurement Notes

Verify the specific ordering code against current Nexperia documentation to confirm package type and availability status. Confirm that the SSOP-14 variant matches design requirements as older SSOP versions may have been superseded. Check for any recent product change notifications regarding marking or manufacturing site updates before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring isolated signal paths with controllable high-impedance states. Ensure the operating voltage falls within the 2.0 V to 6.0 V range. Verify thermal management capabilities as total power dissipation derates significantly above 81 °C for the TSSOP package, though this part uses SO/SSOP variants which have different derating curves.

Part Context

This component belongs to the 74HC/HCT logic family, representing high-speed CMOS technology compatible with Low-Power Schottky TTL. It serves as a standard interface solution for digital systems requiring signal isolation. The 'DB' suffix indicates the specific SSOP-14 plastic small outline package variant manufactured by Nexperia.

Replacement Considerations

74HC126PW,118

FAQ

How does the output behave when the nOE input is LOW?

When the nOE input is LOW, all four outputs assume a high-impedance OFF-state regardless of the input data levels.

What are the input voltage levels for the HC version?

The 74HC126 operates with CMOS input levels, where VIH is typically 0.7 x VCC and VIL is typically 0.3 x VCC.