SN74HC151DRG4

Overview

The SN74HC151DRG4 is an 8-line to 1-line data selector or multiplexer from the Texas Instruments 74HC logic family. It features eight data inputs, three address select lines, and a strobe input for enabling or disabling the device. The component operates within a supply voltage range of 2 V to 6 V and provides a single complementary output. Packaged in a 16-pin SOIC surface-mount case, it supports operation across an industrial temperature range of -40°C to +85°C with a typical propagation delay of 13 ns.

Feature Summary

• Provides high-speed data routing by selecting one of eight input channels based on binary address signals.
• Includes an active-low enable (strobe) input to control data transmission timing.
• Delivers both true and inverted outputs for flexible logic interfacing.
• Compatible with standard CMOS logic levels across a wide supply voltage spectrum.

Applications

• Data acquisition systems requiring channel selection
• Digital signal routing in communication interfaces
• Address decoding circuits in microprocessor systems

Procurement Notes

Verify the complete part number including the G4 suffix to ensure compliance with RoHS directives and lead-free manufacturing standards. Confirm the SOIC-16 package dimensions match your PCB footprint requirements. Check the specific datasheet revision for any updates to electrical characteristics or recommended operating conditions before finalizing design specifications.

Selection Notes

Select this component when an 8-channel multiplexing function is required within the 74HC performance envelope. Ensure the system voltage falls between 2 V and 6 V to maintain valid logic levels. Consider the 13 ns propagation delay against your maximum clock frequency requirements. Verify that the SOIC-16 thermal dissipation capabilities are sufficient for your application's power budget.

Part Context

This device belongs to the SN74HC151 series of 8-to-1 multiplexers. The DRG4 designation indicates a tape-and-reel packaging format suitable for automated assembly processes. It is part of the broader 74HC family, which offers speed comparable to 74LS TTL but with lower power consumption and wider voltage tolerance.

Replacement Considerations

Direct substitutes include SN74HC151DR and SN74HC151DRE4. These alternatives share identical pinouts and logical functions. Verify that the substitute package variant matches your board layout constraints and that the manufacturer's electrical specifications align with your design margins.