SN74AS621N

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AS621N is an octal bus transceiver manufactured by Texas Instruments, belonging to the Advanced Schottky (AS) logic family. It features eight non-inverting buffers with true outputs, designed for high-speed data transfer applications. The device operates within a supply voltage range of 4.5 V to 5.5 V and utilizes a 20-pin PDIP package. It supports through-hole mounting and functions reliably across a temperature range of 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight independent non-inverting buffer channels for signal transmission
• Utilizes Advanced Schottky technology for enhanced switching speed and reduced power consumption
• Features true output polarity for direct signal path integrity

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed memory interface buffering
• Bidirectional data bus driving in microprocessor systems
• Signal isolation between digital logic stages

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'N' confirms the PDIP-20 through-hole package variant. Confirm the manufacturer is Texas Instruments to ensure AS-series performance characteristics. Check RoHS compliance status as required by your assembly specifications. Ensure the component is new and free from physical damage upon receipt.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when eight-channel non-inverting buffering with Advanced Schottky speed is required. It serves as a suitable replacement for standard 74LS621 equivalents where higher performance is needed. Consider the PDIP-20 package constraints for PCB layout. Verify voltage compatibility with the target system's 5V logic levels before integration.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AS series, which offers improved speed-power product compared to standard LS logic. The SN74AS621 specifically addresses the need for wide-bus data handling in legacy and industrial control systems requiring robust signal integrity.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74AS621 is functionally compatible with other octal bus transceivers in the AS family. Verify pinout compatibility if substituting with similar parts from different manufacturers.