74AC157MTCX

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74AC157MTCX is a quad 2-input multiplexer housed in a 16-lead Thin Shrink Small Outline Package (TSSOP). It operates within a supply voltage range of 2.0V to 6.0V and supports an operating temperature from -40°C to +85°C. The device features four independent data channels with common Select and Enable inputs, providing non-inverted outputs. Outputs can source or sink up to 24 mA. Propagation delays vary by input path: S to Zn ranges from 1.5 ns to 13.0 ns at 3.3V; E to Zn ranges from 1.5 ns to 13.0 ns at 3.3V; In to Zn ranges from 1.0 ns to 9.0 ns at 3.3V.

Signal Switches, Multiplexers, Decoders Feature Summary

• Quad 2-input multiplexing capability with common select and enable controls
• Outputs provide true (non-inverted) data presentation
• Capable of sourcing and sinking 24 mA output current
• Function generator implementation for logic gating

Signal Switches, Multiplexers, Decoders Applications

• Moving data between two groups of registers to common output busses
• Implementing gating functions as a function generator
• Selecting four bits of data from two sources under control signals

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering code suffix 'X' corresponds to tape and reel packaging when procuring. Confirm that the component is sourced from authorized distributors to ensure authenticity. Check RoHS compliance documentation for material declarations. Ensure the TSSOP-16 package dimensions match the design footprint requirements. Validate the manufacturer designation against official datasheets.

Signal Switches, Multiplexers, Decoders Selection Notes

Choose this component for applications requiring high-speed quad multiplexing with low power consumption. The AC series offers reduced ICC and IOZ compared to older standards. Verify that the 2.0V to 6.0V supply range matches the system voltage. Ensure the TSSOP-16 package fits the PCB layout constraints. Consider propagation delay specifications relative to the system clock speed.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74AC157 family of quad 2-input multiplexers. It shares functional similarities with the 74ACT157 but differs in input threshold compatibility and supply voltage requirements. The AC variant supports a wider voltage range down to 2.0V, whereas the ACT variant is optimized for 5V TTL-compatible systems. Both share the same pinout and logical operations.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The MC74AC157DG is a confirmed substitute offering similar quad 2-input multiplexing functionality in a SOIC-16 package. Verify package compatibility and electrical characteristics before substitution.