MC74HC640AFEL-ON

Overview

The MC74HC640AFEL-ON is an octal buffer and line driver manufactured by onsemi, belonging to the HC logic series. It features non-inverting polarity with three-state outputs and operates within a supply voltage range of 2 V to 6 V. The device utilizes a 20-pin SOIC-J package and supports surface-mount installation. Key electrical characteristics include a maximum propagation delay of 96 ns at 2 V and 15 ns at 6 V, high-level output current of -7.8 mA, low-level output current of 7.8 mA, and static current of 4 uA. It functions reliably across an operating temperature range from -55 °C to +125 °C.

Feature Summary

• Octal buffering capability for eight independent signal paths
• Three-state output control for bus-oriented systems
• Wide supply voltage operation supporting 2 V to 6 V ranges
• Non-inverting signal transmission with CMOS technology

Applications

• Bus-oriented memory and data register systems
• Clock drivers and timing circuits
• Signal buffering in industrial control environments
• High-temperature automotive electronic applications

Procurement Notes

Verify component authenticity through official onsemi channels or authorized distributors. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Ensure storage conditions meet specified humidity requirements to prevent damage. Review datasheet specifications for thermal management and pin configuration compatibility with target PCB layout designs.

Selection Notes

Select this component when requiring octal buffering with three-state functionality in harsh environments. The wide operating temperature range suits industrial and automotive use cases. Verify voltage levels match system requirements between 2 V and 6 V. Consider package constraints and thermal dissipation needs for surface-mount integration.

Part Context

This part belongs to the 74HC family of high-speed CMOS logic devices produced by onsemi. It serves as an octal buffer and line driver designed for general-purpose digital applications. The device provides robust performance in noise-immune environments typical of modern electronic systems.

Replacement Considerations

Direct substitutes may include other octal buffers from the 74HC series with compatible pinouts and electrical specifications. Verify functional equivalence regarding voltage ranges, output drive capabilities, and package dimensions before substitution.