74VHCT595PW,118

Shift Registers Overview

The Nexperia 74VHCT595PW,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-level inputs. It is housed in a TSSOP16 (SOT403-1) package and supports operating temperatures from -40 °C to +125 °C.

Shift Registers Feature Summary

• Features balanced propagation delays and Schmitt-trigger action at all inputs
• Includes ESD protection exceeding 2000 V (HBM) and 1000 V (CDM)
• Provides serial standard output for cascading and asynchronous reset functionality

Shift Registers Applications

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

Shift Registers Procurement Notes

Verify the specific ordering suffix

Shift Registers Selection Notes

Select this component when TTL-compatible input levels are required alongside high-speed CMOS performance. The VHCT series ensures compatibility with Low-power Schottky TTL logic while offering improved switching speeds compared to standard HC devices. Ensure the design accommodates the specified temperature range and power dissipation limits for the TSSOP16 package.

Shift Registers Part Context

This part belongs to the 74VHC(V)HCT595 family of high-speed Si-gate CMOS devices. These components are pin compatible with Low-power Schottky TTL (LSTTL) and comply with JEDEC standard No. 7A. The family provides versatile shifting and latching capabilities suitable for various digital logic applications requiring reliable data transfer.

Shift Registers Replacement Considerations

Public confirmed substitute: SN74HCT595PWR (Texas Instruments). Verify pinout and electrical specifications against the original datasheet before implementation.

Shift Registers FAQ

What is the function of the OE input?

The Output Enable (OE) input controls the state of the parallel outputs. When OE is LOW, data from the storage register appears at the outputs. When OE is HIGH, the outputs assume a high-impedance OFF-state.

How does the asynchronous reset work?

The Master Reset (MR) input is active LOW. Applying a LOW level to MR resets all stages of the shift register immediately, regardless of the clock signals.