SN74LV573APWRE4

Latches Overview

The SN74LV573APWRE4 is an octal transparent D-type latch manufactured by Texas Instruments, belonging to the LV logic series. It features eight D-type latches with tri-state outputs and operates within a supply voltage range of 2 V to 5.5 V. The device provides propagation delays of 18.7 ns at 2.5 V, 14.5 ns at 3.3 V, and 8.8 ns at 5 V. It supports low-level output currents of 32 mA and high-level output currents of -16 mA, with a maximum static current of 20 uA. Designed for surface-mount applications, it is housed in a TSSOP-20 package and functions reliably across an operating temperature range from -40°C to +85°C.

Latches Feature Summary

• Octal configuration providing eight independent transparent D-type latches with tri-state outputs for flexible bus interfacing.
• Wide supply voltage compatibility ranging from 2 V to 5.5 V, supporting various system power standards.
• High drive capability with low-level output currents up to 32 mA for robust signal transmission.
• Low quiescent current consumption of 20 uA to minimize power usage during standby or inactive states.

Latches Applications

• Parallel-to-serial data conversion in communication interfaces
• Buffering and register operations in microprocessor systems
• I/O port expansion for embedded controllers

Latches Procurement Notes

Verify the E4 suffix indicates lead-free composition compliant with RoHS standards. Confirm the RE4 suffix specifies tape-and-reel packaging suitable for automated assembly processes. Ensure the TSSOP-20 package dimensions match the target PCB footprint requirements. Check that the operating temperature range meets the environmental conditions of the final application.

Latches Selection Notes

Select this component when an octal latch with wide voltage tolerance is required. The LV series offers faster performance than standard HC logic while maintaining lower power consumption. Consider the 32 mA drive strength for driving moderate loads directly. Verify that the 2 V minimum supply voltage aligns with the system's lowest operational rail.

Latches Part Context

This part belongs to the SN74LV573A family of octal transparent D-type latches. It shares functional similarities with other variants like SN74LV573ADBR but differs in package type and specific electrical characteristics. The LV series is designed for low-voltage applications requiring higher speed than traditional CMOS logic families.

Latches Replacement Considerations

SN74LV573APWR serves as a direct alternative with identical functionality but may differ in reel packaging specifications. SN74LV573ADBR offers similar electrical performance in an SSOP-20 package, requiring footprint adaptation. SN74LVC573APWRE4 provides comparable latch functionality but operates at a lower voltage range of 1.65 V to 3.6 V.