CD74ACT253E

Signal Switches, Multiplexers, Decoders Overview

The CD74ACT253E is a dual 4-input multiplexer manufactured by Texas Instruments under the Harris Corporation brand. It features two independent multiplexers, each selecting one of four data inputs based on three address lines. The device utilizes CMOS technology and operates within a supply voltage range of 4.5V to 5.5V. It provides three-state outputs for bus-oriented applications. The component is housed in a 16-pin Plastic Dual In-Line Package (PDIP) with an operating temperature range from -55°C to +125°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual independent 4-to-1 multiplexing functionality
• Three-state output capability for bus driving
• Wide industrial operating temperature range

Signal Switches, Multiplexers, Decoders Applications

• Bus-oriented memory addressing
• Data routing in digital systems
• Signal selection circuits

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the manufacturer designation carefully, as the part may be listed under Texas Instruments despite the historical Harris Corporation association. Confirm the package type is PDIP-16 and check RoHS compliance status, as older Harris-branded variants may not meet current environmental standards. Ensure the supply voltage requirements match your system design before procurement.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when dual independent 4:1 multiplexing with three-state outputs is required. It is suitable for applications needing wide temperature stability and standard DIP packaging. Compare against HC or HCT series alternatives if lower power consumption or different voltage compatibility is needed. Verify pinout compatibility if replacing legacy designs.

Signal Switches, Multiplexers, Decoders Part Context

This component belongs to the 74ACT logic family, which combines the speed of AC logic with TTL-compatible input levels. The 253 variant specifically provides dual multiplexers. While originally associated with Harris Corporation, production and datasheets are often managed by Texas Instruments. It serves as a digital switch for selecting between multiple data sources.

Signal Switches, Multiplexers, Decoders Replacement Considerations

CD74HC253E offers similar functionality but with different electrical characteristics and potentially lower speed. CD74HCT253E provides TTL-compatible inputs. Verify pin compatibility and electrical specifications before substitution.