74ACT253SC

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74ACT253SC is a dual 4-input multiplexer with 3-STATE outputs 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 from -40°C to +85°C. The device features non-inverting outputs capable of sourcing and sinking 24mA, with TTL-compatible inputs. Common select inputs (S0, S1) determine the data path for two independent sections.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual 4-input multiplexing architecture with common select lines
• Non-inverting 3-STATE outputs for bus-oriented interfacing
• TTL-compatible input thresholds for logic level compatibility
• Individual output enable controls for high impedance state management

Signal Switches, Multiplexers, Decoders Applications

• Bus oriented system data routing
• Data selection from multiple sources
• Logic implementation of multi-position switches

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm datasheet revision status and manufacturing origin. Ensure storage conditions comply with moisture sensitivity levels. Validate pinout alignment with target PCB footprint specifications prior to assembly integration.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when dual independent multiplexing with 3-STATE capability is required. Verify that the 4.5V to 5.5V supply voltage aligns with system power rails. Ensure load requirements do not exceed the 24mA source/sink current limits. Confirm SOIC package dimensions fit the designated board space constraints.

Signal Switches, Multiplexers, Decoders Part Context

This device belongs to the 74ACT series of logic integrated circuits. It implements the standard 74ACT253 functionality originally defined by Fairchild Semiconductor. The part provides a compact solution for signal routing applications requiring tri-state isolation and TTL input compatibility within standard industrial temperature ranges.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitutes include MC74ACT253DR2G from onsemi. Compatible alternatives from other manufacturers include CD74ACT253M and CD74ACT253M96 from Texas Instruments. Verify pinout and electrical characteristics match before substitution.