74AC157SC

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74AC157SC is a quad 2-input multiplexer housed in a 16-lead Small Outline Integrated Circuit (SOIC) package. It operates on a single power supply ranging from 2V to 6V and supports an operating temperature range of -40°C to +85°C. The device features outputs capable of sourcing and sinking 24mA, with reduced quiescent current and output impedance compared to previous generations. It utilizes common Select and Enable inputs to route four bits of data from two sources to the outputs.

Signal Switches, Multiplexers, Decoders Feature Summary

• Quad 2-input multiplexing architecture with common control lines
• High drive capability with 24mA source and sink output currents
• Reduced power consumption and output impedance characteristics

Signal Switches, Multiplexers, Decoders Applications

• Routing data between two groups of registers to common buses
• Implementing gating functions as a function generator
• Selecting data sources for logic circuits

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the manufacturer origin, as this part number was originally produced by Fairchild Semiconductor. Confirm that the specific SOIC-16 package matches the M16A designation. Ensure compliance with RoHS standards if required for the target assembly process. Check for any obsolescence notices or lifecycle status updates from the current rights holder.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a quad multiplexer with high drive strength is required within a 2V to 6V supply range. It is suitable for applications needing TTL-compatible input thresholds if using the ACT variant, though the AC version requires voltage level alignment. Consider the SOIC-16 package constraints for PCB layout and thermal management during selection.

Signal Switches, Multiplexers, Decoders Part Context

This device belongs to the 74AC logic family, known for high-speed operation and CMOS compatibility. The 74AC157 specifically implements a 4-pole, 2-position switch functionality. It is part of a broader series including the 74ACT157, which offers TTL-compatible inputs for direct interfacing with TTL logic systems.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The NLV74AC157DR2G is a documented alternative offering similar multiplexing functionality in a 16-SOIC package. Verify pinout compatibility and electrical specifications against the original datasheet before substitution.