SN74HC258NSR

Overview

The SN74HC258NSR is a quadruple 2-line to 1-line data selector/multiplexer with inverted 3-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and supports an operating temperature range of -40°C to +85°C. The device features a typical propagation delay (tpd) of 12 ns at 5 V and provides ±6 mA output drive capability at 5 V. It utilizes a 16-pin Small Outline package (SOIC/SOP).

Feature Summary

• Provides four independent multiplexers controlled by a common address select input.
• Outputs are actively driven in the inverted state when enabled.
• High-impedance state achieved via active-low strobe input for bus interfacing.

Applications

• Bus interface systems requiring signal selection from multiple sources.
• Data routing in high-performance digital logic circuits.
• Multiplexing applications involving inverted signal paths.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current Package Option Addendum to confirm the exact physical package type and moisture sensitivity level. Ensure the selected variant matches the required lead finish and RoHS compliance status for the intended manufacturing process.

Selection Notes

Select this component when inverted multiplexing functionality is required within the HC logic family. Compare against the SN74HC257 if non-inverted outputs are needed instead. Confirm that the 3-state output requirements align with the system's bus isolation needs.

Part Context

This part belongs to the SNx4HC257/258 series of quadruple 2-line to 1-line data selectors. It shares the same internal architecture as the SN74HC257 but differs specifically in providing inverted outputs rather than non-inverted ones.

Replacement Considerations

SN74HC257NSR