CD74HC242E

Overview

The CD74HC242E is a high-speed CMOS logic transceiver manufactured by Harris Corporation. It features one inverting element with four bits per element and provides three-state outputs. The device operates on a supply voltage range of 2V to 6V and is housed in a 16-PDIP package. It supports an operating temperature range from -55°C to 125°C.

Feature Summary

• Inverting transceiver functionality
• Three-state output capability
• Wide operating voltage range

Applications

• Bus-oriented communications systems
• Data transmission applications
• Memory mapping circuits

Procurement Notes

Verify the manufacturer origin, as Harris Corporation assets were acquired by other entities. Confirm RoHS compliance status, as older Harris parts may not meet current environmental standards. Check for lead-free plating variations and ensure the package type matches the required footprint for PCB integration.

Selection Notes

Select this component when an inverting bus transceiver with three-state control is required. Ensure the system voltage falls within the 2V to 6V range. Consider the PDIP package constraints for through-hole mounting requirements and verify thermal limits for high-temperature environments up to 125°C.

Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices. It serves as a bidirectional data transfer interface between two buses. The inverting nature distinguishes it from non-inverting counterparts like the CD74HC244.

Replacement Considerations

Compatible equivalents include the SN74HC242 or MC74HC242. Verify pin compatibility and electrical characteristics before substitution.