SN74ABT620N

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ABT620N is a Tri-State Octal Bus Transceiver from the Texas Instruments ABT logic series. It features eight bidirectional data paths with TTL-compatible inputs and outputs. The device operates within a supply voltage range of 4.5 V to 5.5 V, supporting low-level output currents of 64 mA and high-level output currents of -32 mA. Propagation delay is specified at 4.8 ns. It is housed in a PDIP-20 package and functions as an inverting transceiver across an operating temperature range of -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight bidirectional bus interfaces for data transfer between different circuit sections.
• Features three-state outputs that isolate the device when disabled to prevent bus contention.
• Supports TTL input levels while maintaining compatibility with standard CMOS logic families.

Buffers, Drivers, Receivers, Transceivers Applications

• Bidirectional data bus architectures requiring signal isolation.
• Memory module interfacing where tri-state control is necessary.
• General-purpose octal bus drivers in industrial control systems.

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'N' confirms the PDIP-20 through-hole package variant rather than surface-mount options. Confirm RoHS compliance status via the manufacturer datasheet before integration. Ensure the design accommodates the required 4.5V to 5.5V power supply rails and thermal dissipation for the specified current loads.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an inverting octal transceiver with TTL input thresholds is required. Compare against non-inverting variants like the SN74ABT623 if signal polarity preservation is needed. Consider the PDIP-20 package constraints for PCB layout and verify that the 4.8 ns propagation delay meets system timing requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ABT family of advanced BJT-transistor logic devices. It serves as a bidirectional interface solution distinct from unidirectional buffers or latches within the same logic family. The device complements other octal components by providing controlled bidirectional data flow capabilities.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74ABT623N offers identical electrical characteristics but provides non-inverting functionality instead of inverting. Verify pinout compatibility and logical inversion requirements when substituting.