SN74AHCT595DR

Shift Registers Overview

The SN74AHCT595DR is an 8-bit serial-in, parallel-out shift register with 3-state output registers manufactured by Texas Instruments. It operates within a supply voltage range of 4.5V to 5.5V and supports a maximum frequency of 135MHz at 15pF load capacitance. The device features TTL-voltage compatible inputs and provides a direct clear input for the shift register. It is housed in a 16-pin SOIC package and functions across an operating free-air temperature range of -40°C to 125°C.

Shift Registers Feature Summary

• Contains an 8-bit serial-in, parallel-out shift register feeding an 8-bit D-type storage register
• Features separate positive-edge triggered clocks for shift and storage registers
• Includes a direct overriding clear input for the shift register
• Provides 3-state outputs controlled by an output-enable input

Shift Registers Applications

• Network switches
• Power infrastructures
• LED displays
• Servers

Shift Registers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current Package Option Addendum to confirm active production status and material specifications. Ensure the selected variant matches the required lead finish and moisture sensitivity level ratings for your assembly process. Cross-reference the part marking code to validate authenticity and traceability during procurement.

Shift Registers Selection Notes

Select this component when a low-drive CMOS solution is required to minimize output ringing and overshoot on bus interfaces. The lowered input switching levels accommodate TTL inputs, making it suitable for translating signals from 3.3V logic to 5V systems. Consider the thermal resistance metrics and layout guidelines for unused inputs to ensure reliable operation under specified environmental conditions.

Shift Registers Part Context

This device belongs to the SNx4AHCT595 family of 8-bit shift registers. It shares functional characteristics with other variants such as the SN74AHCT595DBR (SSOP) and SN74AHCT595PWRG3 (TSSOP). All members of this series utilize CMOS technology and offer balanced output drive capabilities while maintaining compatibility with standard digital logic families.

Shift Registers Replacement Considerations

SN74ACT595PWR is listed as a parameter equivalent alternative.