SN74F257D

Overview

The SN74F257D is a quad 2-to-1 data selector/multiplexer from the Texas Instruments SN74F series. It features four independent multiplexers with three-state outputs, housed in a 16-pin SOIC-Narrow package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a propagation delay of 7 ns. It is designed for surface-mount installation and functions reliably within an operating temperature range of 0°C to +70°C.

Feature Summary

• Integrates four independent 2-to-1 data selectors within a single integrated circuit
• Provides three-state output capability for efficient bus-oriented systems
• Utilizes high-speed switching technology characteristic of the F logic family

Applications

• Data routing in digital communication systems
• Signal selection in microprocessor-based control circuits
• Address decoding and data path management in industrial equipment

Procurement Notes

Verify the specific suffix 'D' corresponds to the SOIC-Narrow 16-pin package configuration. Confirm that the required propagation delay and power supply specifications align with the system design constraints. Ensure compliance with RoHS directives if applicable to the manufacturing environment. Cross-reference the manufacturer part number against official datasheets to validate authenticity and functional parameters before integration.

Selection Notes

Select this component when high-speed data switching is required within standard 5V logic environments. The SN74F series offers faster performance than LS variants while maintaining compatibility. Consider the three-state outputs for shared bus applications. Evaluate thermal dissipation requirements based on the SOIC-Narrow package limitations and ambient operating conditions.

Part Context

This component belongs to the SN74F logic family, known for high-speed operation compared to standard TTL equivalents. It serves as a fundamental building block for digital signal processing and data management tasks. The device complements other multiplexers and demultiplexers in the same series, providing standardized interfaces for complex digital architectures.