74VHC595MX

Shift Registers Overview

The onsemi 74VHC595MX is an advanced high-speed CMOS shift register fabricated with silicon gate technology. It contains an 8-bit serial-in, parallel-out shift register feeding an 8-bit D-type storage register with three-state outputs. The device operates within a DC supply voltage range of 2.0 V to 5.5 V and supports an operating temperature range from -40°C to +85°C. Propagation delays are specified at 16.5 ns (SCK to Q'H) and 10.2 ns (RCK to QA-QH) under typical conditions with a 50 pF load at 3.3 V. Maximum clock frequency reaches 155 MHz at 5.0 V with a 50 pF load. The component is housed in a SOIC-16 package.

Shift Registers Feature Summary

• Provides independent positive-edge triggered clocks for the shift register and storage register, allowing parallel outputs to remain stable during shifting operations.
• Features input protection circuits that tolerate voltages up to 5.5 V regardless of supply voltage, enabling safe interfacing between 5 V and 3 V systems.
• Includes power-down protection on all inputs to prevent device destruction due to mismatched supply and input voltages.
• Delivers high noise immunity and low dynamic output voltage characteristics suitable for demanding digital environments.

Shift Registers Applications

• Serial-to-parallel data conversion
• Data receiver circuits
• Direct connection to 8-bit system buses

Shift Registers Procurement Notes

Verify the specific ordering suffix 'MX' corresponds to the SOIC-16 package and tape-and-reel shipping configuration as defined in the manufacturer's ordering information. Confirm RoHS compliance status and lead time requirements directly with authorized distributors or the manufacturer prior to finalizing procurement plans.

Shift Registers Selection Notes

Select this component when high-speed operation comparable to Bipolar Schottky TTL is required alongside CMOS low power dissipation. Ensure the application utilizes a supply voltage between 2.0 V and 5.5 V and requires three-state outputs for bus interfacing. Verify that the SOIC-16 package dimensions fit the target PCB layout constraints.

Shift Registers Part Context

This device belongs to the 74VHC logic family, which offers performance similar to equivalent Bipolar Schottky TTL while maintaining CMOS advantages. It is functionally compatible with other standard logic families such as the 74HC595, facilitating direct replacement in existing designs without circuit modification.

Shift Registers Replacement Considerations

The MC74VHC595DR2G serves as a verified substitute part number within the same product family.