DM74ALS652WMX

Overview

The DM74ALS652WMX is an octal bus transceiver and register from the Advanced Low-power Schottky (ALS) series. It integrates eight D-type flip-flops to provide registered data storage alongside direct bus transmission capabilities. The device features independent output enable controls for each direction, allowing flexible management of data flow between two buses. Packaged in a 20-lead Small Outline Integrated Circuit (SOIC), it operates within a standard TTL voltage range and supports bidirectional communication controlled by a dedicated direction input.

Feature Summary

• Integrates D-type flip-flops for registered data storage alongside direct bus transmission paths
• Provides independent output enable control for each transmission direction
• Supports bidirectional data transfer via a single direction control input

Applications

• Memory systems requiring buffered data storage
• Microprocessor system interconnects
• Asynchronous bidirectional data buses

Procurement Notes

Verify the specific suffix 'MX' against the manufacturer's current datasheet to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with existing 5V logic levels and check for any lead-free or RoHS compliance markings required by your assembly process. Cross-reference the part number with official distributor catalogs to confirm active status and availability.

Selection Notes

Select this component when both registered storage and direct transparent transmission are required on the same bus interface. The ALS technology offers improved speed over standard LS devices while maintaining lower power consumption. Verify that the 20-lead SOIC package fits the board layout constraints and that the operating temperature range meets the environmental requirements of the final application.

Part Context

This component belongs to the Fairchild Semiconductor DM74ALS family, which utilizes Advanced Low-power Schottky technology. This series is designed to replace older 74LS equivalents with faster switching speeds and reduced power dissipation. The 652 variant specifically combines bus transceiver functionality with internal latching registers, distinguishing it from simple transceivers like the 245 series.

Replacement Considerations

Public confirmed substitute part numbers include DM74ALS652WM.