SN74ALS620AN

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALS620AN is an octal bus transceiver from the Texas Instruments ALS logic family, housed in a 20-pin plastic DIP package. It provides asynchronous two-way communication between data buses with dual output-enable inputs (OEAB and OEBA) for flexible timing control. The device features three-state inverting outputs. Recommended operating conditions specify a supply voltage of 4.5 V to 5.5 V and an operating temperature range of 0°C to 70°C. Electrical characteristics include a low-level output current of 24 mA and high-level output current of -15 mA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports asynchronous bidirectional data transmission between two independent 8-bit buses
• Features dual output-enable inputs allowing simultaneous data storage capability
• Provides three-state inverting logic outputs for effective bus isolation

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous two-way communication between data buses
• Local bus-latch applications requiring data storage
• System designs utilizing standard plastic DIP packaging

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the ordering suffix 'N' corresponds to the standard plastic 300-mil DIP package. Confirm the specific revision level matches system requirements, as datasheets may undergo updates. Ensure compatibility with the required 0°C to 70°C operating temperature range and 5V logic levels before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when inverting logic polarity is required for bus interfacing. Compare against non-inverting variants like the SN74ALS623A if signal phase preservation is necessary. Consider the SN74ALS621A if open-collector outputs are preferred over three-state drivers for wired-OR configurations.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74ALS62xA series of octal bus transceivers manufactured by Texas Instruments. It shares functional similarities with the SN74ALS621A and SN74ALS623A but differs specifically in its output logic type. The ALS series offers improved speed and power consumption characteristics compared to earlier standard TTL families.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ALS623ADW