74ACT158SC

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74ACT158SC is a quad 2-input multiplexer housed in a 16-lead Small Outline Integrated Circuit (SOIC) package. It operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range from -40°C to +85°C. The device features TTL-compatible inputs, outputs capable of sourcing or sinking 24 mA, and reduced quiescent current consumption. Propagation delays are specified at 9.5 ns maximum for select-to-output transitions under standard test conditions.

Signal Switches, Multiplexers, Decoders Feature Summary

• Quad 2-input multiplexer architecture with common Select and Enable control lines
• Outputs present selected data in inverted form
• TTL-compatible input logic levels
• High drive capability with 24 mA output source/sink capacity

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

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and tape/reel availability. Confirm RoHS compliance status through official material composition reports. Ensure the component meets required operating temperature ranges for the intended application environment before finalizing procurement.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a quad 2-input multiplexer with inverted outputs is required. Verify that the system operates within the 4.5V to 5.5V supply voltage range. Consider the 24 mA output drive capability for load requirements. Ensure compatibility with TTL-compatible input signals if interfacing with legacy logic families.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74ACT logic family, characterized by high-speed CMOS technology compatible with TTL inputs. The 74ACT158 specifically implements a quad 2-input multiplexer function. The 'SC' suffix denotes the 16-lead SOIC package variant manufactured by Fairchild Semiconductor, now part of onsemi.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Check datasheets for other 74ACT158 variants from different manufacturers to ensure pinout and electrical specifications match. Verify package dimensions for mechanical fit. Confirm functional equivalence regarding inverted outputs and enable logic polarity.