DM74ALS573BSJ

Latches Overview

The DM74ALS573BSJ is an octal D-type transparent latch with 3-state outputs manufactured by onsemi. It operates within a supply voltage range of 4.5V to 5.5V and supports a free air operating temperature from 0°C to +70°C. The device features propagation delays ranging from 2ns to 14ns for data inputs and up to 20ns for enable signals. Output drive capabilities include -2.6mA high-level and 24mA low-level currents, ensuring direct bus line driving without interface components.

Latches Feature Summary

• Transparent D-type latching mechanism where outputs follow data inputs while the enable signal is HIGH
• Totem-pole 3-state outputs designed for direct connection to bus lines in bus-organized systems
• Buffered output control input allows isolation of internal latch operation from external bus states

Latches Applications

• Implementing buffer registers in digital circuits
• Configuring I/O ports for microprocessor interfaces
• Serving as bidirectional bus drivers
• Functioning as working registers in data processing systems

Latches Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm package integrity matches the 20-Lead Small Outline Package (SOP) specifications. Check datasheet revisions for any updates to electrical characteristics or ordering information. Ensure environmental compliance documentation aligns with project requirements before finalizing procurement decisions.

Latches Selection Notes

Select this component when designing systems requiring octal data storage with tri-state bus interfacing capabilities. Consider the Advanced Schottky TTL process for improved AC performance compared to standard LS equivalents. Evaluate power consumption benefits relative to functional alternatives. Verify that the 20-SOP package dimensions fit the target PCB layout constraints effectively.

Latches Part Context

This device belongs to the 74ALS logic family, utilizing advanced oxide-isolated, ion-implanted Schottky technology. It is functionally equivalent to the DM74LS373 but offers improved AC performance at approximately half the power consumption. The part represents a standard solution for high-speed digital latching applications requiring robust bus driving capabilities.

Latches Replacement Considerations

SN74ALS573CDWR and SN74ALS573CNSR are confirmed parameter-equivalent substitutes available from Texas Instruments.