SN74F253N

Overview

The SN74F253N is a dual 4-input multiplexer/demultiplexer manufactured by Texas Instruments. It operates within a supply voltage range of 4.5V to 5.5V and supports data rates up to 60MHz. The device features three-state outputs and accepts inputs from two independent 4-line multiplexers controlled by common select lines. It utilizes standard TTL logic levels and is housed in a 16-pin DIP package.

Feature Summary

• Dual independent 4-to-1 multiplexer architecture
• Three-state output capability for bus driving
• Common select line control for both channels

Applications

• Data routing in digital systems
• Address decoding applications
• Multiplexing sensor inputs

Procurement Notes

Verify the manufacturer marking on the component body to confirm it originates from Texas Instruments. Ensure the part number suffix matches 'N' for the specific package variant. Check datasheet revisions for any updates to electrical characteristics or pin configurations before finalizing procurement specifications.

Selection Notes

Select this component when a design requires two separate 4-channel multiplexing functions within a single integrated circuit. Consider the propagation delay and power consumption characteristics relative to other logic families if low-power operation is a primary constraint. Verify that the operating voltage aligns with the system's 5V logic requirements.

Part Context

This component belongs to the SN74xx series of logic integrated circuits, widely used in general-purpose digital electronics. The F-series designation indicates Fast TTL logic performance. It serves as a fundamental building block for creating complex switching networks and managing multiple data sources in microprocessor-based systems.