CD74HCT237E

Overview

The CD74HCT237E is a high-speed CMOS decoder/driver manufactured by Harris Corporation, belonging to the HCT logic series. It features true outputs and operates within a supply voltage range of 4.5V to 5.5V. The device is housed in a 16-pin Ceramic Dual In-Line Package (CDIP-16). It includes three enable inputs for control flexibility and exhibits a propagation delay of 48 ns. The component supports an operating temperature range from -40°C to 85°C.

Feature Summary

• Features three enable inputs for enhanced control functionality
• Provides true output polarity for direct signal interfacing
• Utilizes high-speed silicon gate CMOS technology

Applications

• Memory address decoding systems
• Data routing applications
• Decoder driver circuits requiring multiple enable controls

Procurement Notes

Verify the package type carefully, as the 'E' suffix typically denotes a specific variant distinct from the 'F/3' ceramic version found in available records. Confirm RoHS compliance status, as older Harris HCT components may not meet current environmental standards. Ensure the supplier provides official datasheets matching the specific manufacturing lot and revision to guarantee pinout and electrical parameter accuracy.

Selection Notes

Select this component when a decoder with true outputs and multiple enable inputs is required. The HCT series ensures compatibility with TTL logic levels while maintaining CMOS low power consumption. Verify that the through-hole CDIP package fits the target PCB layout constraints. Consider the 48 ns propagation delay against system timing requirements to ensure adequate performance margins.

Part Context

This part belongs to the CD74HCTxxyy family, which combines high-speed CMOS performance with TTL-compatible input thresholds. The manufacturer, Harris Corporation, has undergone corporate changes, with assets often acquired by Texas Instruments or Rochester Electronics. This specific decoder/driver design leverages standard HCT architecture for reliable digital signal processing in industrial environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.