CD74HCT253M

Overview

The CD74HCT253M is a dual 4-input multiplexer manufactured by Harris Corporation, belonging to the HCT logic series. It utilizes CMOS technology and features non-inverting data paths with three-state outputs that interface directly with system buses. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -55 °C to +125 °C. It is housed in a 16-pin SOIC package.

Feature Summary

• Dual 4-input multiplexer architecture with common select inputs
• Three-state outputs for direct bus interfacing
• TTL-compatible input levels

Applications

• Data selectors
• Data multiplexers

Procurement Notes

Verify manufacturer origin as Harris Corporation or successor entities like Texas Instruments. Confirm RoHS compliance status, as older Harris variants may not meet current standards. Validate package integrity and pin configuration against the 16-SOIC specification before integration into designs requiring high-temperature operation.

Selection Notes

Select this component when TTL-level compatibility is required alongside CMOS performance. The HCT series ensures compatibility with Low-power Schottky TTL (LSTTL) systems. Ensure the design accommodates the specified 4.5 V to 5.5 V supply voltage and wide industrial temperature range for reliable operation.

Part Context

This part belongs to the 74HCT family of high-speed Si-gate CMOS devices. It is pin-compatible with Low-power Schottky TTL (LSTTL). The device complies with JEDEC standard no. 7A and includes ESD protection exceeding 2000 V per JESD22-A114F.

FAQ

What are the input level requirements for the CD74HCT253M?

The CD74HCT253M requires TTL-level input signals, distinguishing it from the HC series which uses CMOS levels.

Does the CD74HCT253M have separate output enable controls?

Yes, the device features separate output enable inputs to control the three-state outputs independently.