74AC253SC

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74AC253SC is a dual 4-input multiplexer with 3-STATE outputs housed in a 16-Lead Small Outline Integrated Circuit (SOIC) package. It selects two bits of data from four sources using common select inputs S0 and S1. The device operates on a single power supply ranging from 2V to 6V, with an operating temperature range of -40°C to +85°C. Outputs can be individually switched to a high impedance state via HIGH signals on the respective Output Enable (OEa, OEb) inputs, facilitating direct interfacing with bus-oriented systems.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual 4-input multiplexers with non-inverting 3-STATE outputs
• Individual output enable inputs for high impedance switching
• Common select inputs for both multiplexer sections

Signal Switches, Multiplexers, Decoders Applications

• Bus oriented system interfacing
• Data selection from multiple sources
• Logic implementation of 2-pole, 4-position switches

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering code suffix against manufacturer documentation to confirm package type and tape/reel availability. Confirm RoHS compliance status through official datasheets or environmental documents before procurement. Ensure the component meets the required voltage and temperature specifications for the target application environment.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a dual 4-input multiplexer with 3-STATE outputs is required. Consider the 74ACT253 variant if TTL-compatible inputs are necessary. Verify that the SOIC package dimensions fit the PCB layout constraints. Ensure the design prevents overlap in Output Enable signals when tying 3-STATE outputs together to avoid exceeding maximum ratings.

Signal Switches, Multiplexers, Decoders Part Context

The 74AC253 belongs to the 74AC logic family, characterized by reduced ICC and IOZ compared to earlier generations. It serves as a standard logic IC for signal routing and data selection tasks in digital circuits. The device is manufactured under Fairchild Semiconductor Corporation specifications, now part of onsemi.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitute: MC74AC253DR2G (onsemi). Similar substitutes: CD74AC253M (Texas Instruments), CD74AC253M96 (Texas Instruments).