74VHC594TTR

Shift Registers Overview

The 74VHC594TTR is an 8-bit shift register with output register fabricated using sub-micron silicon gate C2MOS technology. It features a serial-in, parallel-out shift register feeding an 8-bit D-type storage register. The device operates within a voltage range of 2V to 5.5V and provides separate clocks and direct overriding clear inputs for both registers. It includes power down protection on all inputs, allowing operation with supply voltages from 0 to 7V regardless of the actual supply voltage.

Shift Registers Feature Summary

• High-speed CMOS performance with balanced propagation delays
• Power down protection on inputs for safe interfacing
• Symmetrical output impedance for reliable signal driving
• Improved latch-up immunity and ESD protection

Shift Registers Applications

• Serial-to-parallel data conversion in digital systems
• Cascading configurations via serial output (QH')
• Interface circuits between 5V and 3V logic domains
• Storage registers in microcontroller peripheral expansion

Shift Registers Procurement Notes

Verify the specific package type required, as the TTR suffix indicates tape and reel packaging. Confirm that the operating environment falls within the specified temperature range of -55°C to +125°C. Ensure input signals do not exceed the absolute maximum ratings defined in the datasheet to prevent damage. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Shift Registers Selection Notes

Select this component when high-speed shifting operations are required alongside low power dissipation characteristics. The VHC series offers superior speed compared to standard HC logic while maintaining compatibility. Consider the separate clock inputs for SCK and RCK if independent control of shifting and storage is necessary for the application timing requirements.

Shift Registers Part Context

This part belongs to the 74VHC family of high-speed CMOS logic devices manufactured by STMicroelectronics. It is functionally compatible with the industry-standard 74 series 594 pinout and logic functions. The device utilizes advanced C2MOS technology to achieve low power consumption and high noise immunity suitable for modern electronic designs.

Shift Registers Replacement Considerations

Compatible replacements include M74VHC594RMTR (SOP package) or equivalent parts from other manufacturers adhering to the 74VHC594 specification. Verify pin compatibility and electrical parameters such as propagation delay and output current capabilities before substitution.