DM74ALS573BWM

Latches Overview

The DM74ALS573BWM is an octal transparent D-type latch manufactured by Fairchild Semiconductor, belonging to the 74ALS logic family. It features eight independent D-type latches with three-state outputs, housed in a 20-lead Small Outline Package (SOP). The device operates within a supply voltage range of 4.5V to 5.5V and supports a propagation delay of 2ns. Output drive capabilities include 2.6mA for high states and 24mA for low states. It functions reliably across an operating temperature range of 0°C to 70°C.

Latches Feature Summary

• Contains eight independent transparent D-type latches for parallel data storage
• Features three-state outputs to facilitate bus-oriented memory mapping
• Utilizes advanced low power Schottky technology for high-speed operation

Latches Applications

• Register files in microprocessor systems
• Buffer registers for driving bus loads
• Temporary data storage in digital logic circuits

Latches Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability of obsolete or refurbished units. Confirm package integrity and pin alignment against the 20-SOP specification before integration. Ensure compliance with RoHS directives if required by the end application. Cross-reference datasheet revisions to validate electrical characteristics match current design requirements.

Latches Selection Notes

Select this component when designing systems requiring high-speed data latching with minimal power consumption. The 74ALS series offers superior speed compared to standard LS logic while maintaining lower power than ALS predecessors. Verify that the 20-SOP footprint matches the PCB layout constraints. Ensure the 5V supply tolerance aligns with the system's voltage regulation capabilities.

Latches Part Context

This part belongs to the Fairchild 74ALS series, which represents advanced low-power Schottky logic technology. The 74ALS573 variant specifically provides octal latching functionality. It serves as a legacy component in older industrial and computing hardware designs. The SOP package allows for surface-mount assembly, suitable for compact electronic devices.

Latches Replacement Considerations

Direct substitutes include SN74ALS573CDWR and SN74ALS573CNSR from Texas Instruments. These alternatives offer parameter-equivalent performance and maintain compatibility with existing circuit designs.