SN74HC151DR

Overview

The SN74HC151DR is an 8-to-1 line data selector/multiplexer from Texas Instruments, belonging to the HC logic series. It features a single circuit with eight inputs and one output in a 16-SOIC package. The device operates on a single power supply ranging from 2 V to 6 V. Key electrical parameters include a propagation delay of 63 ns, output drive currents of 7.8 mA for both high and low states, and a maximum supply current (ICC) of 80 μA. It functions within a temperature range of -40°C to +85°C.

Feature Summary

• Provides complete binary decoding to select one of eight data sources.
• Enables input selection only when the strobe (G) input is at a low logic level.
• High-level strobe forces standard output (Y) low and inverted output (W) high.

Applications

• Data source selection
• Demultiplexing operations
• Parallel-to-serial conversion

Procurement Notes

Verify the specific ordering suffix 'D' confirms the SOIC-16 surface-mount package and tape-and-reel shipping configuration. Confirm RoHS compliance status and moisture sensitivity level (MSL 1) requirements for your assembly process. Ensure the component meets the specified operating temperature range of -40°C to +85°C for your intended environment.

Selection Notes

Select this component for applications requiring an 8-channel multiplexer with HC logic speed and voltage compatibility. It is suitable for designs needing low input current and moderate output drive capability. Consider the 16-pin SOIC footprint constraints and the requirement for a low-active enable signal when integrating into the system architecture.

Part Context

This part is part of the SN74HC151 family of 8-line to 1-line data selectors. It serves as a standard digital logic solution for routing multiple data lines to a single destination based on binary address inputs. The DR suffix specifically denotes the reel packaging format for automated surface-mount assembly.

Replacement Considerations

SN74HC151DRE4

FAQ

How does the strobe input affect the outputs?

When the strobe (G) input is high, the standard output (Y) is forced low and the inverted output (W) is forced high, disabling the selected data input.

What is the typical propagation delay for this device?

The datasheet specifies a typical propagation delay (t_pd) of 13 ns, while the specific parameter listing indicates a value of 63 ns.