SN74F251BD

Overview

The SN74F251BD is a single 8-input multiplexer manufactured by Texas Instruments, belonging to the SN74F series. It features a 16-pin SOIC surface-mount package and operates on a single power supply ranging from 4.5V to 5.5V. The device provides one output line selected from eight input lines based on three address inputs. It supports an operating temperature range of 0°C to 70°C and includes three-state outputs for bus driving applications.

Feature Summary

• Provides high-speed data selection capability using Schottky process technology
• Features three-state outputs allowing direct connection to system buses
• Includes on-chip select logic decoding for simplified address control

Applications

• Data routing in digital communication systems
• Address decoding in memory architectures
• Signal switching in test and measurement equipment

Procurement Notes

Verify that the ordering suffix BD corresponds to the specific 16-SOIC package variant required for your design. Confirm compatibility with existing PCB footprints and soldering profiles. Ensure the component meets RoHS standards if applicable to your manufacturing requirements. Cross-reference pinouts with official datasheets before integration.

Selection Notes

Select this component when a fast, single-channel 8-to-1 multiplexer with three-state outputs is needed. It is suitable for designs requiring low propagation delay and high noise immunity within the F-series logic family. Consider package constraints and thermal management for surface-mount assembly processes.

Part Context

This part belongs to the Texas Instruments SN74F logic family, known for high-speed performance compared to standard TTL. The SN74F251 specifically addresses applications requiring efficient data path selection. It serves as a functional equivalent to other industry-standard 8-input multiplexers within the same voltage and speed parameters.