SN74LVC373AN

Latches Overview

The SN74LVC373AN is an octal transparent D-type latch with three-state outputs manufactured by Texas Instruments. It operates from a supply voltage of 1.65 V to 3.6 V and accepts input voltages up to 5.5 V, supporting mixed-mode signal operation. The device features a maximum propagation delay of 6.8 ns at 3.3 V and provides high drive current capability of 24 mA. It includes Ioff circuitry for partial-power-down mode and back-drive protection. The component is housed in a 20-pin PDIP package and supports an operating temperature range of -40°C to 125°C.

Latches Feature Summary

• Operates within a wide supply voltage range of 1.65 V to 3.6 V
• Inputs accept voltages up to 5.5 V for mixed-mode compatibility
• Ioff feature prevents damaging back-drive currents during power-down
• High-impedance state isolates outputs without loading bus lines

Latches Applications

• Network switches
• TV set-top boxes
• Motor drives
• PCs and notebooks

Latches Procurement Notes

Verify the specific ordering suffix 'AN' corresponds to the 20-pin PDIP package when sourcing. Confirm RoHS compliance status and lead finish details via the manufacturer's latest orderable addendum. Ensure the procurement channel sources production-active parts rather than obsolete variants. Check thermal resistance specifications if high-density mounting is required.

Latches Selection Notes

Select this component for applications requiring octal data latching with high-drive capabilities in low-voltage systems. The 5.5 V tolerant inputs facilitate interfacing between 3.3 V logic and legacy 5 V systems. Consider the 20-pin PDIP package for through-hole prototyping or environments where surface-mount soldering is not feasible. Evaluate the 6.8 ns propagation delay against system timing requirements.

Latches Part Context

This part belongs to the SNx4LVC373A family of octal transparent D-type latches with three-state outputs. The LVC series is designed for low-voltage CMOS applications, offering performance comparable to older TTL standards while consuming significantly less power. The 'SN' prefix indicates commercial grade availability, distinct from the military-grade 'SJ' designation.

Latches Replacement Considerations

Compatible pin-to-pin replacements include SN74LVC373ADW (SOIC), SN74LVC373APW (TSSOP), and SN74LVC373ARGYR (VQFN). Verify that the alternative package maintains the same electrical characteristics and thermal properties for the specific application environment.