74AC257MTC

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74AC257MTC is a quad 2-input multiplexer with 3-STATE outputs housed in a 16-Lead Thin Shrink Small Outline Package (TSSOP). It selects four bits of data from two sources using a common Data Select input, presenting the selected data in true form. The device supports a supply voltage range of 2.0V to 6.0V and operates within a temperature range of -40°C to +85°C. Outputs can be switched to a high impedance state via the Output Enable input.

Signal Switches, Multiplexers, Decoders Feature Summary

• Noninverting 3-STATE outputs allow direct interfacing with bus-oriented systems
• Multiplexer expansion capability achieved by tying outputs together
• Outputs provide source/sink current of 24 mA

Signal Switches, Multiplexers, Decoders Applications

• Bus-oriented system interfacing
• Data selection between two sources
• Multiplexer expansion configurations

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 for the exact part number variant. Check for any product change notifications or lifecycle updates that may affect long-term procurement planning.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a quad 2-input multiplexer with 3-STATE outputs is required. Ensure the operating voltage falls within the 2.0V to 6.0V range. Consider the TSSOP-16 package constraints for PCB layout. Verify that the 24 mA output drive capability meets load requirements.

Signal Switches, Multiplexers, Decoders Part Context

This component belongs to the 74AC logic family, characterized by CMOS technology and wide voltage operation. It serves as a digital switch implementation, functioning as a 4-pole, 2-position switch controlled by logic levels. The device is part of a broader series including ACT variants with TTL-compatible inputs.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The 74ACT257MTC is a compatible alternative within the same datasheet offering TTL-compatible inputs. Other packages such as SOIC-16 or PDIP-16 are available under different ordering codes like 74AC257SC or 74AC257PC.