74LVC126APW/DG,118

Overview

The 74LVC126APW/DG,118 is a quad buffer and line driver manufactured by Nexperia USA Inc. It operates within a supply voltage range of 1.2 V to 3.6 V. The device features four non-inverting buffers with three-state outputs controlled by an output enable input. Key electrical parameters include a high-level output current of -24 mA and a low-level output current of 24 mA. Static current is specified at 100 nA, with a maximum power dissipation of 500 mW. Propagation delay is typically 2.4 ns. The component supports surface mount installation in a TSSOP-14 package and functions reliably across an operating temperature range from -40 °C to +125 °C.

Feature Summary

• Provides four non-inverting buffer channels with independent three-state output control via the nOE pin.
• Supports 5 V tolerant inputs and outputs, enabling direct interfacing between 3.3 V and 5 V logic families.
• Operates on a wide supply voltage range from 1.2 V to 3.6 V with low static power consumption.

Applications

• Interfacing 3.3 V logic systems with 5 V peripheral devices
• Memory bus buffering and data line drivers
• Clock signal distribution in low-voltage digital circuits

Procurement Notes

Verify the manufacturer designation carefully, as the part number indicates Nexperia USA Inc., not NXP USA Inc., despite historical lineage. Confirm the specific suffix DG corresponds to the TSSOP-14 package variant required for your PCB layout. Ensure compliance with RoHS3 standards if environmental regulations apply to your assembly process. Cross-reference the datasheet revision date to confirm parameter consistency with your design specifications.

Selection Notes

Select this component when a quad buffer with 5 V tolerance is required for mixed-voltage environments. The LVC series offers superior performance compared to older CMOS families while maintaining TTL compatibility. Consider the TSSOP-14 package for applications requiring higher pin density than standard SOIC packages. Verify that the 24 mA drive capability meets the load requirements of your destination circuitry without exceeding thermal limits.

Part Context

This component belongs to the 74LVC (Low Voltage CMOS) logic family, designed for high-speed operation at low voltages. It serves as a successor to earlier 74HC and 74HCT series devices, offering improved switching speeds and lower power consumption. The 74LVC126A specifically addresses the need for level shifting and buffering in modern portable and battery-operated electronic devices where voltage levels vary across subsystems.

Replacement Considerations

The 74LVC126AD,118 is a documented substitute part number offering identical logical functionality in a different package configuration.