SN74AHC2G157HDCTR

Signal Switches, Multiplexers, Decoders Overview

The SN74AHC2G157HDCTR is a single-channel, 2-line to 1-line data selector and multiplexer manufactured by Texas Instruments. Designed for operation within a supply voltage range of 2 V to 5.5 V, it features true outputs and a common strobe input that disables the device when high. The component utilizes an 8-pin DCT package measuring 2.95 x 2.80 x 1.1 mm. It supports switching speeds with typical propagation delays of 6.2 ns at 3.0 V and operates reliably across temperatures from -40°C to 85°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Features a common strobe input that forces all outputs low when activated, providing effective control over signal routing.
• Routes a selected 1-bit word from one of two sources to the output while presenting true data without inversion.
• Designed for low power dissipation with maximum quiescent current of 2 µA at room temperature.

Signal Switches, Multiplexers, Decoders Applications

• Data routing in digital logic circuits
• Signal selection between multiple sources
• Multiplexing applications requiring low power consumption

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix 'DCTR' corresponds to the tape-and-reel packaging format required for your assembly process. Confirm that the DCT package dimensions align with your PCB footprint design. Ensure the operating voltage requirements match your system's power supply rails before finalizing procurement.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a compact, single-channel multiplexer is needed for systems operating between 2 V and 5.5 V. Consider its low power dissipation characteristics for battery-powered or energy-efficient designs. Verify that the 8-pin DCT package fits within your spatial constraints and manufacturing capabilities.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SN74AHC2G157H family of data selectors. It shares functional similarities with other AHC series multiplexers but is distinguished by its single-channel configuration and specific DCT packaging. It serves as a building block for more complex data routing architectures.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Check for direct pin-compatible alternatives within the SN74AHC or SN74LVC families. Verify that any substitute maintains the same 2-V to 5.5-V operating range and similar propagation delay specifications to ensure circuit compatibility.

Signal Switches, Multiplexers, Decoders FAQ

What is the function of the G (strobe) input?

When the G input is high, all outputs are forced low. When the G input is low, the device selects and routes data from inputs A or B to the outputs based on the A/B select line.

What is the typical propagation delay at 3.0 V?

The typical propagation delay is 6.2 ns when operating at a supply voltage of 3.0 V with a load capacitance of 15 pF.