SN74BCT126AN

Buffers, Drivers, Receivers, Transceivers Overview

The SN74BCT126AN is a quadruple bus buffer gate with 3-state outputs manufactured by Texas Instruments. It operates on a single power supply ranging from 4.5 V to 5.5 V, with a nominal voltage of 5 V. The device features four independent line drivers and utilizes BiCMOS technology. It provides high-level output currents up to -15 mA and low-level output currents up to 64 mA at 5 V. Propagation delays are specified between 1.5 ns and 7.4 ns depending on the transition direction and voltage conditions. The component is housed in a standard 14-pin PDIP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features independent line drivers with 3-state outputs that drive bus lines or buffer memory address registers
• Includes an output-enable (OE) input for each buffer to control signal flow
• Provides ESD protection exceeding 2000 V per MIL-STD-883C Method 3015

Buffers, Drivers, Receivers, Transceivers Applications

• Driving bus lines
• Buffering memory address registers
• General-purpose quadruple bus buffering

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package type and temperature rating. Ensure the selected variant matches the required operating environment and pin configuration before procurement. Cross-reference the datasheet revision date to confirm current specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a quadruple non-inverting buffer with 3-state capability is required for 5 V logic systems. Consider the SN54BCT126A if operation across the full military temperature range of –55 °C to 125°C is necessary instead of the commercial range.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN54/74BCT126A family of quadruple bus buffer gates. It is designed using state-of-the-art BiCMOS technology to significantly reduce quiescent current. The family includes various package options such as plastic DIPs, ceramic chip carriers, and flatpacks to suit different mounting requirements.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN54BCT126AJ

Buffers, Drivers, Receivers, Transceivers FAQ

How does the output-enable (OE) input function?

Each output is disabled when its associated OE input is low, placing the output in a high-impedance state.

What is the maximum low-level output current?

The maximum low-level output current is 64 mA at a supply voltage of 5 V.