74HC573BQ-Q100,115

Latches Overview

The Nexperia 74HC573BQ-Q100,115 is an octal D-type transparent latch with 3-state outputs, qualified to AEC-Q100 Grade 1 for automotive use. It operates within a supply voltage range of 2.0 V to 6.0 V and supports ambient temperatures from -40 °C to +125 °C. The device features a DHVQFN20 package (SOT764-1) with side-wettable flanks for automated optical inspection. Key electrical parameters include a propagation delay of 14 ns at 6.0 V, low-level output current of 7.8 mA, and high-level output current of -7.8 mA.

Latches Feature Summary

• Automotive qualification in accordance with AEC-Q100 Grade 1 standards
• DHVQFN package with side-wettable flanks enabling automated optical inspection of solder joints
• High noise immunity with CMOS input levels and clamp diodes on inputs
• Latch-up performance exceeding 100 mA per JESD 78 Class II Level B

Latches Applications

• Input or output ports for microprocessors and microcomputers
• Bus-oriented applications utilizing 3-state non-inverting outputs
• Automotive electronic systems requiring Grade 1 qualification

Latches Procurement Notes

Verify the specific ordering suffix matches the required package variant and temperature grade. Confirm that the DHVQFN20 footprint aligns with the design layout, noting the thermal pad requirements. Ensure the component meets the intended AEC-Q100 Grade 1 specifications for the target automotive application environment.

Latches Selection Notes

Select this part when an octal latch with 3-state outputs is required for bus-oriented designs. The HC logic family provides CMOS input levels suitable for general digital interfacing. Consider the DHVQFN20 package if space constraints and automated inspection capabilities are prioritized over through-hole options.

Latches Part Context

This component belongs to the 74HC573-Q100 series of octal D-type transparent latches. It shares functional characteristics with other variants like the 74HC573D-Q100 but differs in packaging. The BQ suffix specifically denotes the DHVQFN20 leadless package, distinguishing it from SO20 or TSSOP20 versions within the same logical family.

Latches Replacement Considerations

Direct substitutes include other 74HC573-Q100 variants such as 74HC573D-Q100 or 74HC573PW-Q100, provided the package difference is accommodated by the PCB design.