CD74HC4049NS

Overview

The CD74HC4049NS is a high-speed CMOS logic hex inverting buffer manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and features push-pull outputs. The device utilizes a 16-SOIC surface-mount package with a width of 5.30 mm. It supports an operating temperature range from -40°C to +85°C and includes ESD protection. The component is designed for applications requiring level shifting between different logic families.

Feature Summary

• Provides six independent inverting buffer channels for signal conditioning
• Features push-pull output structure for improved drive capability
• Supports voltage translation between 5-V CMOS and TTL logic levels
• Includes electrostatic discharge (ESD) protection on all inputs

Applications

• Level shifting between 5-V CMOS and TTL logic families
• Driving high-capacitance loads in digital circuits
• Signal buffering in microprocessor systems
• Clock distribution networks requiring inversion

Procurement Notes

Verify the specific suffix 'NS' against the manufacturer's official datasheet to confirm the exact package dimensions and tape-and-reel specifications. Ensure the ordering part number matches the required 16-SOIC variant. Cross-reference the RoHS compliance status and moisture sensitivity level with the latest production data before finalizing procurement orders.

Selection Notes

Select this component when a hex inverting buffer with push-pull outputs is required for 5-V CMOS or TTL applications. It is suitable for designs needing voltage translation capabilities. Consider the 16-SOIC package constraints for PCB layout. Verify that the input voltage limits are respected to prevent damage during operation.

Part Context

This component belongs to the Texas Instruments 74HC series of high-speed CMOS logic devices. The 74HC family offers performance comparable to standard TTL logic but with lower power consumption. The CD74HC4049 specifically provides inverting buffer functionality, distinguishing it from non-inverting counterparts like the 74HC4050.

Replacement Considerations

The CD74HC4049N is a PDIP equivalent. For non-inverting functions, consider the CD74HC4050. Other manufacturers offer compatible parts such as the HEF4049B.