SN74HC158DT

Overview

The SN74HC158DT is a quad 2-line to 1-line data selector/multiplexer from the Texas Instruments HC logic family. It contains four independent multiplexers with inverted outputs and a separate strobe (G) input. The device operates within a supply voltage range of 2 V to 6 V and supports an operating free-air temperature range of -40°C to +85°C. Electrical characteristics include a maximum propagation delay of 32 ns at 4.5 V, typical power dissipation capacitance of 40 pF, and low input current of 1 µA maximum. Outputs can drive up to 15 LSTTL loads.

Feature Summary

• Provides full data selection across four independent channels using inverters and drivers
• Features a dedicated strobe input for controlling output enablement
• Delivers inverted data outputs for each selected channel
• Supports wide operating voltage ranges suitable for various digital logic environments

Applications

• Routing 4-bit words from one of two sources to multiple outputs
• General-purpose data selection in digital circuits
• Multiplexing applications requiring inverted signal outputs

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lead finish specifications against current datasheets. Check package marking codes to ensure correct identification. Validate that the specific ordering suffix matches required packaging and material standards before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring quad multiplexing with inverted outputs. Ensure the application voltage falls between 2 V and 6 V. Verify that the -40°C to +85°C operating temperature range meets environmental requirements. Consider the SOIC-16 package dimensions for PCB layout compatibility.

Part Context

This part belongs to the SN74HC158 series of data selectors manufactured by Texas Instruments. It is designed for high-speed CMOS logic applications. The device integrates four 2-to-1 multiplexers into a single 16-pin package, providing a compact solution for data routing tasks in standard digital logic designs.

Replacement Considerations

SN74HC158DR is an active production alternative available in tape and reel packaging.