SN74F253NS

Overview

The SN74F253NS is a dual 4-input multiplexer from the Texas Instruments SN74F series, housed in a 16-pin DIP package. It operates on a single 4.5 V to 5.5 V supply with a quiescent current of 80 µA. The device features low-level output currents of 24 mA and high-level output currents of -3 mA. Propagation delay is specified at 9 ns at 5 V, supporting operation within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Dual independent 4-to-1 data selection capability
• Standard TTL-compatible input and output logic levels
• High-drive output capability for bus driving applications

Applications

• Data routing in digital systems
• Address decoding circuits
• Signal switching networks

Procurement Notes

Verify the specific suffix 'NS' against the manufacturer's official documentation to confirm the exact package variant and tape-and-reel or tube availability. Ensure the component meets RoHS compliance requirements for your target application before finalizing procurement orders.

Selection Notes

Select this component when dual independent 4-channel multiplexing is required within standard 5V logic families. Consider the propagation delay and drive strength specifications relative to system timing constraints and load requirements during circuit design.

Part Context

This part belongs to the SN74F logic family, characterized by fast switching speeds compared to standard 74LS devices. It serves as a functional equivalent to other industry-standard quad multiplexers but offers dual independent channels in a single package.

Replacement Considerations

Check for direct pin-compatible alternatives such as the SN74F253N or SN74F253DR if package form factor changes are acceptable. Verify electrical parameter compatibility before substituting.