SN74HCS595DR

Shift Registers Overview

The SN74HCS595DR is an 8-bit serial-in, parallel-out shift register with a storage register and Schmitt-trigger inputs. It operates within a supply voltage range of 2 V to 6 V and supports an ambient temperature range from -40°C to +125°C. The device features balanced CMOS 3-state outputs capable of ±7.8 mA drive current at 6 V. It is housed in a 16-pin SOIC package.

Shift Registers Feature Summary

• Schmitt-trigger inputs eliminate erroneous data outputs caused by slow-edged or noisy input signals.
• Balanced CMOS 3-state outputs provide high-impedance states for bus sharing and controlled driving.
• Separate clocks allow independent operation of the shift register and the storage register.

Shift Registers Applications

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

Shift Registers Procurement Notes

Verify the specific ordering suffix 'D' corresponds to the SOIC-16 package and tape-and-reel packaging configuration. Confirm RoHS compliance status and ensure the component meets the required industrial temperature specifications for the intended deployment environment.

Shift Registers Selection Notes

Select this component when noise immunity is critical due to its Schmitt-trigger architecture. It is suitable for applications requiring wide voltage flexibility between 2 V and 6 V. Ensure the design accounts for the separate clocking mechanism to manage data shifting and latching timing correctly.

Shift Registers Part Context

This part belongs to the SN74HCS595 family of logic ICs manufactured by Texas Instruments. It is designed as a robust alternative to standard CMOS shift registers, offering enhanced noise rejection capabilities while maintaining low power consumption characteristics suitable for battery-operated systems.

Shift Registers Replacement Considerations

SN74HCS595PW

Shift Registers FAQ

How does the OE pin affect internal data?

When the output-enable (OE) input is high, the storage register outputs enter a high-impedance state. However, internal register data and the serial output (QH') remain unaffected by the OE operation.

What is the function of the SRCLR input?

SRCLR is a direct overriding clear input for the shift register. When active low, it clears the shift register regardless of other input conditions.