SN74ABT126DB

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ABT126DB is a quadruple bus buffer gate with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -40°C to +85°C. The device features high-drive outputs capable of sourcing -32 mA and sinking 64 mA. Propagation delays are specified at a maximum of 6.3 ns for tPLH and 5.7 ns for tPHL at VCC = 5 V. It includes Ioff support for hot insertion and maintains a high-impedance state during power-up or power-down when VCC is between 0 and 2.1 V.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features independent line drivers with 3-state outputs that disable when the associated output-enable input is low.
• Provides high-drive output capability with specified current ratings for both high-level and low-level states.
• Supports hot insertion through Ioff functionality and ensures a high-impedance state during power transitions.

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented communications systems
• Clock distribution buffers
• Memory address/data bus drivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'DB' corresponds to the SSOP package type and tape-and-reel quantity as listed in the manufacturer's documentation. Confirm RoHS compliance status and lead finish details via the official Package Option Addendum before finalizing procurement specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring non-inverting quadruple buffering with 3-state control. Ensure the system operates within the 4.5 V to 5.5 V supply voltage range and accommodates the required drive currents. Consider the SSOP package dimensions and thermal impedance characteristics for PCB layout constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ABT126 family of quadruple bus buffer gates. It shares functional similarities with other ABT series logic devices but is distinguished by its specific pinout, package configuration, and electrical characteristics defined in the SN54ABT126/SN74ABT126 datasheet.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include SN74ABT126DR (SOIC package) and SN74ABT126NSR (SOP package). Verify package compatibility and pin alignment before substitution.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device behave during power-up?

When VCC is between 0 and 2.1 V, the device enters a high-impedance state. To ensure this state above 2.1 V, OE should be tied to GND through a pulldown resistor.

What is the latch-up performance rating?

Latch-up performance exceeds 500 mA per JESD 17 standards.