74LCX126SJ

Overview

The onsemi 74LCX126SJ is a quad bus buffer featuring non-inverting logic and three-state outputs, housed in a 14-SOIC package. It operates within a supply voltage range of 2V to 3.6V, supporting mixed 5V/3.3V system designs. The device provides high drive capability with output currents of 24mA for both high and low states. It exhibits a maximum propagation delay of 5.2ns at 3.3V with a 50pF load and maintains a maximum static current of 10µA.

Feature Summary

• Provides four independent non-inverting buffer channels with true output polarity
• Features three-state outputs controlled by a single enable input for bus management
• Supports operation across a wide voltage range from 2V to 3.6V for mixed-signal compatibility

Applications

• Mixed 5V and 3.3V system data routing
• Clock buffering and distribution
• Bus-oriented memory and signal switching

Procurement Notes

Verify the specific manufacturer designation as the part number may be associated with onsemi or Nexperia USA Inc. Confirm the package style matches the required SO-14 footprint. Ensure the component status aligns with project requirements, noting that some listings indicate this specific variant may be obsolete or end-of-life.

Selection Notes

Select this component for applications requiring low power consumption and high-speed performance in low-voltage environments. The 24mA drive strength supports direct interfacing with CMOS and TTL loads. Verify the operating temperature range meets environmental constraints, typically spanning -40°C to 85°C or 125°C depending on the specific datasheet revision.

Part Context

This device belongs to the 74LCX series of low-voltage CMOS logic components. It serves as a standard interface solution for modern digital systems transitioning between different voltage domains. The LCX family is characterized by its compatibility with 3.3V supplies while maintaining performance levels comparable to older 5V logic standards.

Replacement Considerations

Public confirmed substitute part numbers include 74LVC126 and 74LVX126 variants. Cross-reference pinouts and electrical characteristics carefully when substituting.