CD74HC4049M

Overview

The CD74HC4049M is a high-speed CMOS logic hex inverting buffer manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 6V and features push-pull outputs capable of sourcing and sinking 5.2mA. The device contains six independent inverting buffer elements, each handling one bit of data. It is housed in a 16-SOIC surface-mount package with a width of 3.90mm. The component supports an extended operating temperature range from -55°C to 125°C and complies with RoHS3 standards.

Feature Summary

• High-speed CMOS technology for efficient signal processing
• Hex configuration providing six independent inverting buffers
• Push-pull output stage design for robust drive capability
• Wide operating voltage range supporting low-power applications

Applications

• General-purpose digital signal buffering and inversion
• Level shifting between different logic families
• Clock signal distribution in digital systems
• Address bus buffering in microcontroller interfaces

Procurement Notes

Verify the specific suffix M96 or M against the datasheet to confirm package dimensions and tape-and-reel specifications. Ensure the ordering part number matches the required moisture sensitivity level and RoHS compliance status. Confirm that the 16-SOIC footprint aligns with the PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when six independent inverting buffers are required in a single package. The HC series offers faster switching speeds compared to standard 4000B series devices. Consider the 2V to 6V operating range to ensure compatibility with the target system's power supply rails and logic voltage levels.

Part Context

This device belongs to the Texas Instruments 74HC family of high-speed CMOS logic integrated circuits. The 74HC series is designed to be compatible with standard TTL logic inputs while offering CMOS noise immunity and low power consumption. The CD prefix indicates commercial grade temperature rating, distinguishing it from the military-grade CDM variant.

Replacement Considerations

CD74HC4049PW

FAQ

Is the CD74HC4049M an inverting or non-inverting buffer?

The CD74HC4049M is a hex inverting buffer, meaning the output signal is the logical inverse of the input signal.

What is the maximum output current for this device?

The device provides a maximum output current of 5.2mA for both high and low states.