CD74HCT253MT

Overview

The CD74HCT253MT is a high-speed CMOS logic component manufactured by Texas Instruments, belonging to the 74HCT series. It functions as a dual 4-input multiplexer with three-state outputs, housed in a 16-SOIC surface-mount package. The device operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range from -55°C to 125°C. Key electrical parameters include a maximum propagation delay of 23ns at 4.5V with 50pF load, output currents of 4mA for both high and low states, and a maximum static current of 2µA.

Feature Summary

• Dual 4-to-1 multiplexer architecture providing independent signal selection paths
• Three-state output capability enabling direct bus line interfacing
• CMOS construction ensuring low power consumption and high noise immunity

Applications

• Data routing and switching applications in digital systems
• Bus-oriented transmission structures requiring tri-state control
• Signal selection circuits in microprocessor-based designs

Procurement Notes

Verify the specific suffix 'MT' against the manufacturer's official datasheet to confirm the tape-and-reel packaging configuration. Ensure the component meets RoHS3 compliance requirements for your assembly process. Cross-reference the ordering part number with the manufacturer's current product status to confirm availability and lifecycle stage before finalizing procurement plans.

Selection Notes

Select this component when a dual 4-input multiplexer with tri-state outputs is required in a 16-pin SOIC package. The HCT logic level compatibility ensures seamless integration with TTL-driven systems while maintaining CMOS performance characteristics. Verify that the 4.5V to 5.5V supply voltage range aligns with the target system's power distribution network.

Part Context

This component is part of the Texas Instruments CD74HCT family, which combines the speed of high-speed CMOS logic with TTL-compatible input thresholds. The 74HCT253 variant specifically addresses applications requiring multiple data sources to be selected and routed through a common output path with controlled impedance states.

Replacement Considerations

Public confirmed substitute part numbers: CD74HCT253M, CD74HCT253M96.