SN74HC646NT

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HC646NT is a single octal bus transceiver from the Texas Instruments 74HC series, designed for high-speed digital applications. It features non-inverting logic with tri-state outputs and operates within a supply voltage range of 2V to 6V. The device utilizes a 24-pin PDIP package suitable for through-hole mounting. It supports output drive currents of 7.8mA for both high and low states and functions reliably across an operating temperature range of -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bus transceiver architecture providing eight independent bidirectional data paths
• Tri-state output capability enabling direct system bus interfacing without additional drivers
• Non-inverting logic configuration maintaining signal polarity during transmission

Buffers, Drivers, Receivers, Transceivers Applications

• Bidirectional data bus buffering in microprocessor systems
• Memory module interface circuits requiring level translation or isolation
• Industrial control systems utilizing standard logic families

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify component authenticity as this part number is marked obsolete by the manufacturer. Confirm availability through authorized distributors or surplus suppliers. Ensure the received units match the specified 24-PDIP package and RoHS3 compliance status. Check for potential lead time variations due to discontinued production status.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing legacy systems requiring through-hole octal transceivers. Consider the 2V to 6V operating range for compatibility with various logic levels. Evaluate the 7.8mA drive strength against load requirements. Verify that the PDIP-24 footprint fits the target PCB layout constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the Texas Instruments 74HC family of high-speed CMOS logic devices. It serves as a standard interface solution for transferring data between different sections of a circuit board. The HC designation indicates compatibility with standard TTL logic levels while offering lower power consumption compared to older LS series counterparts.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HC646DWR is listed as a similar alternative by the manufacturer.