74ABT126CSC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ABT126CSC is a quad buffer with 3-STATE outputs manufactured by Fairchild Semiconductor. It operates within a supply voltage range of +4.5V to +5.5V and supports an ambient temperature range of -40°C to +85°C. The device features non-inverting buffers with high impedance glitch-free bus loading during power cycles. Output capabilities include a sink current of 64mA and a source current of 32mA. Propagation delays are typically 4.4ns for data-to-output transitions. Input clamp diode voltage is -1.2V, and input HIGH/LOW voltages are recognized at 2.0V and 0.8V respectively.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Non-inverting buffers with 3-STATE outputs
• High impedance glitch-free bus loading during power up and down
• Nondestructive hot insertion capability
• Disable time less than enable time to avoid bus contention

Buffers, Drivers, Receivers, Transceivers Applications

• Bus loading applications requiring glitch-free operation
• Hot insertion systems
• General purpose buffering in digital circuits

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the manufacturer origin as this component was originally produced by Fairchild Semiconductor before acquisition by onsemi. Confirm the package type matches the specific suffix (CSC indicates SOIC). Check for RoHS compliance status relative to the manufacturing date. Ensure the datasheet revision aligns with your design requirements. Validate that the obsolete status does not impact long-term availability needs.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when non-inverting buffering with three-state control is required. Consider the 4.5V to 5.5V operating voltage range for compatibility. Evaluate the 64mA sink and 32mA source drive strengths against load requirements. Review propagation delay specifications for timing constraints. Compare package options if different form factors are needed.

Buffers, Drivers, Receivers, Transceivers Part Context

The 74ABT126 belongs to the ABT logic family, known for high-speed performance. This specific part number denotes the Quad Buffer variant. It shares functional similarities with other ABT buffers but differs in pinout and configuration. The CSC suffix identifies the 14-Lead Small Outline Integrated Circuit package.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for equivalent parts from other manufacturers offering similar ABT logic characteristics. Verify pin compatibility and electrical specifications match the original design requirements. Consider package variations if physical footprint changes are acceptable.