CD74HCT4514E

Overview

The CD74HCT4514E is a CMOS decoder/demultiplexer manufactured by Harris Corporation. It features one 4-to-16 line decoder with transparent address latches and registered data inputs. The device operates within a supply voltage range of 2V to 6V and supports a wide operating temperature range from -55°C to 125°C. It is housed in a 24-pin PDIP package with a width of 0.600 inches (15.24mm) for through-hole mounting.

Feature Summary

• Transparent address latches allow direct input monitoring
• Registered data inputs provide stable signal storage
• Wide operating temperature range suitable for harsh environments

Applications

• Industrial control systems requiring robust logic decoding
• Data acquisition systems utilizing high-temperature components
• Consumer electronics designed for extended thermal stability

Procurement Notes

Verify the specific manufacturer source, as Harris Corporation assets are often managed by Rochester Electronics LLC or Microchip Technology. Confirm RoHS compliance status, as older Harris parts may not meet current environmental standards. Ensure the 24-DIP package dimensions match your PCB footprint requirements precisely before ordering.

Selection Notes

Select this component when a 4-to-16 decoder with integrated address latching is required. The HCT series ensures compatibility with standard TTL logic levels while offering CMOS power efficiency. Consider the wide temperature range if the application involves significant thermal variations or industrial-grade durability needs.

Part Context

This part belongs to the 74HCT logic family, known for high-speed CMOS performance compatible with TTL inputs. Harris Corporation was a prominent semiconductor manufacturer before its logic division was acquired by National Semiconductor, which later merged into Texas Instruments. Current availability often reflects surplus or legacy stock management.

Replacement Considerations

Check for equivalents from Texas Instruments or Rochester Electronics, such as the SN74HCT4514. Verify pinout compatibility and electrical specifications against the original datasheet. Ensure that any substitute maintains the same package type and operating temperature range for direct replacement.