TC74HC4049AFTEL

Overview

The TC74HC4049AFTEL is a CMOS digital integrated circuit belonging to the HC/UH logic series, manufactured by Toshiba Semiconductor and Storage. It functions as an inverting buffer with six independent channels, packaged in a 16-pin Small Outline (SOIC) format. The device operates within a supply voltage range of 2.0 V to 6.0 V and supports a wide operating temperature range from -40 °C to +85 °C. Key electrical characteristics include a propagation delay of 9 ns at 5 V and output drive currents of ±7.8 mA. The component features true output polarity for inversion and is designed for surface-mount installation.

Feature Summary

• Provides six independent inverting buffer channels for signal conditioning
• Supports bidirectional level shifting between different voltage domains
• Features push-pull output configuration for high-speed operation

Applications

• Voltage level translation between low-voltage microcontrollers and higher-voltage peripherals
• Signal buffering in general-purpose digital logic circuits
• Interface adaptation for communication protocols such as UART, GPIO, and SPI

Procurement Notes

Verify the specific suffix 'AFTEL' against official Toshiba documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with RoHS3 standards if required by your manufacturing process. Cross-reference the part number with authorized distributors to confirm current availability status, as logic ICs may undergo lifecycle changes or obsolescence notices.

Selection Notes

Select this component when designing systems requiring robust inverting buffers with moderate speed and high drive capability. The HC series offers a balance of power consumption and performance suitable for general-purpose applications. Consider the 16-pin SOIC package constraints for PCB layout and ensure the operating voltage range aligns with the system's power supply rails.

Part Context

This component is part of Toshiba's extensive portfolio of general-purpose logic integrated circuits. The TC74HC4049 series is widely used in consumer, industrial, and automotive electronics for basic logic operations. As a member of the HC family, it provides compatibility with standard TTL logic levels while offering improved noise immunity and lower power consumption compared to older technologies.

Replacement Considerations

Compatible substitutes include the TC74HC4049AFI and TC74HC4049D. Verify pinout compatibility and electrical parameters before substitution. Note that some variants may have different packaging or suffix designations that do not alter functionality but affect procurement.