DM74ALS564AWMX

Overview

The DM74ALS564AWMX is an onsemi D-type transparent latch featuring eight independent bits housed in a 20-SOIC surface-mount package. It operates within a supply voltage range of 4.5V to 5.5V and supports a clock frequency up to 35 MHz. The device exhibits a maximum propagation delay of 3ns at 5V with 50pF load, delivering output currents of -2.6mA (high) and 24mA (low). Designed for commercial applications, it functions between 0°C and 70°C ambient temperature.

Feature Summary

• Provides eight-bit data storage via D-type transparent latch architecture
• Features high-speed signal transmission with low propagation delay characteristics
• Offers robust drive capability through defined high and low output current levels

Applications

• Parallel-to-serial data conversion circuits
• Temporary data storage in digital logic systems
• Buffering interfaces between microprocessors and peripheral devices

Procurement Notes

Verify component authenticity due to end-of-life status. Confirm package integrity upon receipt as the part utilizes tape-and-reel packaging. Ensure compatibility with existing 5V logic designs given the specific ALS series electrical characteristics. Check for alternative sources if immediate availability is required.

Selection Notes

Select this component for designs requiring eight-bit latching with fast switching speeds. The 20-SOIC package suits surface-mount assembly processes. Consider the specific output drive requirements and operating temperature range when integrating into broader system architectures. Verify pinout compatibility if replacing older variants.

Part Context

This component belongs to the 74ALS logic family, known for advanced low-power Schottky technology. It serves as a standard octal latch within onsemi's portfolio. The device complements other logic elements by providing reliable data retention capabilities in high-speed digital environments.

Replacement Considerations

Direct substitutes include SN74ALS564 variants from Texas Instruments. Verify pin compatibility and electrical specifications before substitution. Alternative packages may require adapter solutions or PCB redesigns.