SN74HCS151DR

Overview

The SN74HCS151DR is an 8-to-1 data selector/multiplexer from Texas Instruments' HC logic family. It features full binary decoding to select one of eight data sources with complementary outputs. The device operates within a supply voltage range of 2 V to 6 V and includes Schmitt-trigger inputs for noise immunity. It is housed in a 16-SOIC package, supports surface mount installation, and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Incorporates Schmitt-trigger inputs to handle slow or noisy signals effectively
• Provides full binary decoding for precise selection among eight data sources
• Delivers both true and complementary output signals simultaneously

Applications

• Data routing in digital communication systems
• Signal switching in instrumentation equipment
• Address decoding in microprocessor-based systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the component meets RoHS compliance requirements for your assembly process. Cross-reference the datasheet revision date to ensure compatibility with current design standards and pinout configurations before finalizing procurement orders.

Selection Notes

Select this component when high noise immunity is required due to its Schmitt-trigger input characteristics. It is suitable for applications operating between 2 V and 6 V where standard logic thresholds may be insufficient. Consider the 16-SOIC package for surface-mount assembly constraints and verify thermal performance within the specified industrial temperature range during system integration.

Part Context

This part belongs to the SN74HC151 series of multiplexers. It shares functional similarities with the SN74HC151 but distinguishes itself through enhanced input structures. The SN74HCS151 variant specifically addresses signal integrity issues in electrically noisy environments, making it a specialized choice within the broader 74HC logic family for robust data selection tasks.

Replacement Considerations

The SN74HC151DR serves as a direct functional substitute, though it lacks Schmitt-trigger inputs. Verify pin compatibility and electrical characteristics carefully. Other compatible parts include the SN74HCT151 for TTL-compatible logic levels, provided voltage and speed requirements align with the system design constraints.