74ACT257SJX

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74ACT257SJX is a quad 2-input multiplexer with 3-STATE outputs, housed in a 16-Lead Small Outline Package (SOP). It selects four bits of data from two sources using a common Data Select input. The device operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range of -40°C to +85°C. Outputs present selected data in true form and can be switched to high impedance via the Output Enable input.

Signal Switches, Multiplexers, Decoders Feature Summary

• Features noninverting 3-STATE outputs that allow direct interfacing with bus-oriented systems.
• Includes TTL-compatible inputs for compatibility with standard logic families.
• Supports multiplexer expansion by allowing outputs to be tied together.

Signal Switches, Multiplexers, Decoders Applications

• Bus-oriented system data routing
• Multiplexer expansion configurations
• Quad 2-input data selection

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific SOP package variant against the datasheet ordering code M16D. Confirm the ACT series logic family requirements match the target circuit's voltage and speed specifications. Ensure the component meets the required operating temperature range for the intended application environment.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a quad 2-input multiplexer with 3-STATE outputs is required for 5V logic applications. The ACT series provides TTL-compatible inputs suitable for interfacing with legacy or mixed-voltage logic systems. Verify that the SOP package dimensions fit the available PCB space.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74AC/ACT257 family of quad 2-input multiplexers. It shares functional similarities with other variants like the SC and MTC packages but differs in physical footprint. The SJX suffix indicates the specific SOP package configuration.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Check for equivalent parts from other manufacturers offering the same quad 2-input multiplexer functionality with 3-STATE outputs in a 16-pin SOP package. Ensure pinout compatibility and electrical characteristics match the original design requirements.