SN74F257DRG4

Overview

The SN74F257DRG4 is a quad 2-to-1 data selector/multiplexer from the Texas Instruments SN74F series. It features four independent channels, each selecting between two inputs based on an enable signal and a select line. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports surface-mount installation in a 16-pin SOIC package. It exhibits a propagation delay of 7 ns and functions reliably across an operating temperature range of 0°C to +70°C.

Feature Summary

• Contains four independent 2-to-1 multiplexers for parallel data routing
• Includes active-low output enable control for bus management
• Provides complementary outputs for each channel

Applications

• Data routing in digital logic systems
• Signal selection in microprocessor interfaces
• Address decoding circuits

Procurement Notes

Verify the component authenticity by checking the manufacturer's marking code against official documentation. Confirm that the suffix 'G4' indicates compliance with specific environmental standards as defined by Texas Instruments. Ensure the package type matches the required PCB footprint specifications before integration into the design.

Selection Notes

Select this component when high-speed switching is required within a standard 5V logic environment. The F-series offers faster propagation delays compared to HC or HCT variants. Consider the 16-pin SOIC package dimensions for board layout constraints and verify thermal dissipation requirements for the intended operating temperature range.

Part Context

This part belongs to the SN74F family of high-speed TTL-compatible logic devices. It serves as a functional equivalent to other industry-standard quad multiplexers but is distinguished by its specific speed characteristics and power consumption profile typical of the F-series technology.

Replacement Considerations

SN74F257D