74LVC594ABQ,115

Shift Registers Overview

The Nexperia 74LVC594ABQ,115 is an 8-bit serial-in/serial or parallel-out shift register with a storage register. It operates within a supply voltage range of 1.2 V to 3.6 V and features overvoltage tolerant inputs up to 5.5 V. The device includes separate clock and reset inputs for both the shift and storage registers, enabling independent control. It supports cascading via a serial output (Q7S) and incorporates IOFF circuitry for partial power-down applications. The component utilizes Schmitt-trigger action at all inputs to tolerate slower rise and fall times.

Shift Registers Feature Summary

• Features IOFF circuitry that disables outputs during partial power-down to prevent damaging backflow current.
• Includes Schmitt-trigger action on all inputs to ensure tolerance for slow input signal transitions.
• Provides overvoltage tolerant inputs capable of interfacing directly with 5 V devices while operating at lower voltages.

Shift Registers Applications

• Serial-to-parallel data conversion
• Remote control holding register

Shift Registers Procurement Notes

Verify the specific ordering suffix matches the DHVQFN16 package configuration required for your design. Confirm that the revision level aligns with your project specifications, as Nexperia periodically updates datasheets. Ensure compatibility with your PCB footprint dimensions for the SOT763-1 outline before finalizing procurement orders.

Shift Registers Selection Notes

Select this component when an 8-bit shift register with independent storage control is required in a low-voltage environment. The DHVQFN16 package offers a compact solution for space-constrained designs. Consider the IOFF feature if the system requires safe operation during power-down states without external isolation components.

Shift Registers Part Context

This part belongs to the 74LVC594A family of 8-bit shift registers manufactured by Nexperia. The ABQ suffix specifically denotes the DHVQFN16 plastic dual in-line compatible thermal enhanced very thin quad flat package. This family is designed for CMOS low-power consumption and direct interface with TTL levels across various supply voltage ranges.

Shift Registers Replacement Considerations

Other packages in the same logical family include 74LVC594AD (SO16), 74LVC594APW (TSSOP16), and 74LVC594ABZ (DHXQFN16). These alternatives share identical electrical characteristics but differ in physical footprint and thermal properties.