CD74HC4049E

Overview

The CD74HC4049E is a high-speed CMOS logic device manufactured by Texas Instruments, classified as a hex inverting buffer within the 74HC series. It integrates six independent buffering elements, each configured for one-bit inversion. The component operates on a single power supply ranging from 2V to 6V and features push-pull outputs capable of sourcing and sinking 5.2mA. Designed for surface-mount installation, it utilizes a 16-pin DIP package. The device supports an extended industrial operating temperature range from -55°C to +125°C and complies with RoHS3 standards.

Feature Summary

• Hex Inverting Buffer Configuration
• High-Speed CMOS Technology
• Push-Pull Output Stage

Applications

• General-purpose signal buffering
• Level shifting between logic families
• Inverting digital control signals

Procurement Notes

Verify the specific package type against the datasheet, as the 'E' suffix typically denotes a plastic DIP package but variations exist. Confirm the manufacturer source is Texas Instruments or an authorized distributor to ensure authenticity. Check for lead-free compliance markings if required by assembly specifications. Ensure the ordering quantity matches the standard packaging format available from the supplier.

Selection Notes

Select this component when six independent inverting buffers are required in a single package. The 74HC series offers compatibility with standard TTL logic levels while maintaining low power consumption typical of CMOS technology. Consider the 16-pin DIP form factor for through-hole prototyping or legacy board designs requiring this specific footprint.

Part Context

This part belongs to the Texas Instruments 74HC family of high-speed CMOS logic devices. The 74HC4049 specifically provides hex inverting buffering capabilities. It is functionally related to non-inverting variants like the 74HC4050 but provides signal inversion. The device is widely used in digital circuits requiring signal conditioning and isolation.

Replacement Considerations

Compatible substitutes include the CD74HC4049M (SOIC package) and CD74HC4049PW (TSSOP package) from Texas Instruments, provided the package footprint is adapted. Other manufacturers may offer pin-compatible alternatives such as the HEF4049B from NXP Semiconductors, subject to electrical parameter verification.