74ACT158PC

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74ACT158PC is a quad 2-input multiplexer housed in a 16-lead Small Outline Package (SOP). It operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature from -40°C to +85°C. The device features TTL-compatible inputs, outputs capable of sourcing or sinking 24 mA, and reduced quiescent current. Propagation delays are specified at 9.5 ns maximum for Select-to-Output transitions and 8.0 ns maximum for Input-to-Output transitions under standard test conditions.

Signal Switches, Multiplexers, Decoders Feature Summary

• Quad 2-input multiplexing architecture with common Select and Enable control lines
• Outputs present selected data in inverted form
• TTL-compatible input thresholds for direct interfacing
• Reduced ICC power consumption compared to previous generations

Signal Switches, Multiplexers, Decoders Applications

• Moving data between two groups of registers to four common output buses
• Function generation using two variables with one variable common
• Implementing gating functions in digital logic circuits

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific package variant, as the 74ACT158 family includes SOIC, SOP, TSSOP, and PDIP options. Confirm RoHS compliance status through official documentation. Check for obsolescence notices, as this component may be discontinued. Ensure the ordering suffix matches the required tape and reel or tube packaging format if applicable.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a quad 2-input multiplexer with inverted outputs is required. It is suitable for applications needing TTL compatibility and moderate drive strength. Consider alternative packages like SOIC or TSSOP if board space constraints differ from the SOP footprint. Verify that the 4.5V to 5.5V supply range aligns with the system design.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74ACT logic family, known for high-speed CMOS performance compatible with TTL standards. The 74ACT158 specifically implements a quad 2-input multiplexer function. Originally manufactured by Fairchild Semiconductor, the product line has transitioned to onsemi following corporate restructuring.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Check for equivalents such as MC74ACT158 or other 74ACT158 variants from different manufacturers. Ensure pinout compatibility and electrical characteristics match the original specifications.