74VHCT595D,118

Shift Registers Overview

The Nexperia 74VHCT595D,118 is an 8-bit serial-in/serial-out or parallel-out shift register with output latches. It operates within a supply voltage range of 4.5 V to 5.5 V and features 3-state outputs. The device utilizes separate clocks for the shift and storage registers, includes an asynchronous active LOW master reset, and accepts TTL input levels. It is housed in a 16-lead SO plastic small outline package (SOT109-1) and supports operation from -40 °C to +125 °C.

Shift Registers Feature Summary

• Features balanced propagation delays and Schmitt-trigger action on all inputs
• Provides 3-state bus driver outputs controlled by an active LOW enable signal
• Includes an asynchronous master reset function for immediate shift register clearing
• Supports cascading via a dedicated serial standard output pin

Shift Registers Applications

• Serial-to-parallel data conversion
• Remote control holding register
• Register once, drag and drop ECAD models into CAD tools

Shift Registers Procurement Notes

Verify that the ordering suffix matches the required package type, as the 74VHCT595 series is available in multiple configurations including TSSOP and DHVQFN. Confirm the specific temperature grade and logic family variant aligns with system requirements before finalizing procurement orders.

Shift Registers Selection Notes

Select this component when TTL-compatible inputs are required alongside high-speed CMOS performance. Ensure the design accommodates the specified 4.5 V to 5.5 V supply voltage range and verify that the SO16 package dimensions fit the intended PCB layout constraints.

Shift Registers Part Context

This part belongs to the 74VHC/VHCT595 family of 8-bit shift registers manufactured by Nexperia. The VHCT series specifically bridges CMOS speed with TTL input compatibility, making it suitable for mixed-voltage systems requiring reliable data shifting and latching capabilities.

Shift Registers Replacement Considerations

Direct substitutes include other 74VHCT595 variants from different manufacturers that maintain identical pinouts and electrical specifications. Verify package compatibility and ensure equivalent ESD protection ratings before substitution.

Shift Registers FAQ

How does the asynchronous reset function operate?

A LOW-level signal on the MR (Master Reset) pin immediately clears all stages of the shift register, regardless of the clock states.

What is the purpose of the Q7S pin?

The Q7S pin serves as the serial standard output, allowing the device to be cascaded with other shift registers for extended data handling.