CD74HC253E

Overview

The CD74HC253E is a high-speed CMOS multiplexer manufactured by Texas Instruments. It features two independent 4-line to 1-line data selectors with common select inputs and separate enable controls. The device operates within a supply voltage range of 2V to 6V and supports an operating temperature range from -40°C to 85°C. It utilizes a 16-pin Plastic Dual In-Line Package (PDIP) with a load capacitance of 50 pF. The component provides three-state outputs for efficient bus-oriented systems.

Feature Summary

• Dual independent 4-to-1 multiplexing functionality
• Three-state output capability for bus driving
• Separate enable inputs for each multiplexer section

Applications

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

Procurement Notes

Verify the manufacturer designation, as original documentation lists RCA while current distribution often cites Texas Instruments. Confirm the PDIP-16 package type and ensure the RoHS compliance status matches project requirements, as source data indicates non-compliance. Validate the specific electrical characteristics against the latest official datasheet before integration.

Selection Notes

Select this component when dual independent 4-to-1 multiplexing is required with three-state outputs. It is suitable for applications needing separate enable control for each channel. Ensure the design accommodates the specified 2V to 6V supply voltage range and the -40°C to 85°C operating temperature limits.

Part Context

This part belongs to the HC logic family, characterized by high-speed CMOS technology. It serves as a functional equivalent to other standard 74HC series multiplexers, providing reliable signal switching in general-purpose digital logic applications.