SN74HCS594DR

Shift Registers Overview

The SN74HCS594DR is an 8-bit serial-in, parallel-out shift register with a storage register, manufactured by Texas Instruments in the HCS logic family. It features Schmitt-trigger inputs for noise immunity and balanced CMOS push-pull outputs. The device operates on a supply voltage (VCC) ranging from 2 V to 6 V and supports an ambient temperature range of –40°C to +125°C. It is housed in a 16-pin SOIC package.

Shift Registers Feature Summary

• Schmitt-trigger inputs provide high noise rejection and tolerance for slow input signal transitions.
• Balanced CMOS push-pull outputs allow for similar sourcing and sinking current capabilities.
• Separate clock inputs enable independent control of the shift register and the output storage register.

Shift Registers Applications

• Output expansion
• LED matrix control
• 7-segment display control
• 8-bit data storage

Shift Registers Procurement Notes

Verify the ordering suffix 'DR' corresponds to the SOIC-16 package and tape-and-reel shipping configuration. Confirm that the specific revision level matches the design requirements. Ensure the component meets RoHS standards as indicated in the manufacturer's documentation before finalizing procurement.

Shift Registers Selection Notes

Select this component when noisy environments require Schmitt-trigger input hysteresis. It is suitable for applications needing separate clocking for shifting and latching data. Verify that the required operating voltage falls within the 2 V to 6 V range and that the extended temperature rating is necessary for the deployment environment.

Shift Registers Part Context

This part belongs to the SN74HCS594 series, which includes variants in TSSOP, WQFN, and SOT-23 packages. The 'D' suffix specifically denotes the SOIC body style, while 'R' indicates reel packaging. Other series members share identical electrical functionality but differ in physical dimensions and thermal characteristics.

Shift Registers Replacement Considerations

SN74HCS594PW: Identical function in TSSOP-16 package. SN74HCS594BQB: Identical function in WQFN-16 package. SN74HC594: Standard HC logic without Schmitt triggers; verify input signal integrity if substituting.