MC74VHC595DTR2G-Q

Shift Registers Overview

The MC74VHC595DTR2G-Q is an 8-bit shift register with an output storage register and 3-state outputs, fabricated using silicon gate CMOS technology. It operates within a voltage range of 2.0 V to 5.5 V and supports temperatures from -55°C to +125°C. The device features independent Shift Clock (SCK) and Register Clock (RCK) inputs, allowing parallel outputs to remain stable during shifting. It achieves a maximum clock frequency of 185 MHz at 5 V and includes power-down protection on inputs.

Shift Registers Feature Summary

• Features independent Shift Clock and Register Clock inputs for stable parallel output control during serial shifting operations.
• Provides high noise immunity with balanced propagation delays and low dynamic output voltage characteristics.
• Includes power-down protection on all inputs to prevent current leakage when the device is powered off.
• Outputs are 3-state capable, enabling direct connection to an 8-bit bus system.

Shift Registers Applications

• Serial-to-parallel data conversion circuits
• Data receiver modules in communication systems
• Automotive electronics requiring AEC-Q100 qualification

Shift Registers Procurement Notes

Verify that the ordering suffix '-Q' is correctly specified, as it denotes automotive qualification and unique site/control change requirements distinct from standard commercial variants. Confirm the package type matches the required footprint, specifically TSSOP-16 for this part number. Ensure compliance with RoHS standards and lead-free specifications before finalizing procurement orders.

Shift Registers Selection Notes

Select this component when interface compatibility between 5 V and 3 V systems is required, given its input tolerance up to 5.5 V. Choose the MC74VHC595DTR2G-Q over standard versions if the application demands AEC-Q100 qualification and PPAP capability. Consider the 3-state output feature if bus sharing is necessary in the design architecture.

Shift Registers Part Context

This device belongs to the MC74VHC595 series of advanced high-speed logic components. It is functionally compatible with other standard logic families while offering improved performance metrics typical of the VHC family. The '-Q' designation indicates specific manufacturing controls for automotive and rigorous industrial applications.

Shift Registers Replacement Considerations

Standard commercial equivalents such as MC74VHC595DTR2G lack the '-Q' suffix and associated automotive qualifications. Cross-reference with Nexperia's 74AHC595PW-Q100,11 for similar functionality, but verify pinout and electrical parameter alignment carefully.

Shift Registers FAQ

What is the purpose of the independent SCK and RCK inputs?

They allow the contents of the shift register to be transferred to the storage register without affecting the parallel outputs, keeping them stable during the shift operation.

How does the device handle power-down conditions?

The inputs are designed with power-down protection to prevent excessive current flow when the supply voltage is removed or below operating levels.