HV574PG-G

Shift Registers Overview

The HV574PG-G is a low-voltage to high-voltage serial-to-parallel converter with push-pull outputs, manufactured by Microchip Technology. It features four parallel 20-bit dynamic shift registers and 80 static latches. The device operates on a logic supply voltage (VDD) of 4.5 V to 5.5 V and supports an output voltage (VPP) up to 80 V. It achieves a maximum clock frequency of 25 MHz per register, enabling an equivalent data rate of 100 MHz. The component is housed in a 100-lead PQFP package and functions within an ambient temperature range of -40°C to +85°C.

Shift Registers Feature Summary

• Four parallel 20-bit dynamic shift registers enable high-speed data processing.
• Outputs support hot switching capabilities for flexible system integration.
• Integrated polarity select and blanking control logic manages output states.
• Diode connection to VPP facilitates efficient power recovery.

Shift Registers Applications

• Display Driver
• Inkjet Driver
• Microelectromechanical Systems Applications

Shift Registers Procurement Notes

Verify the specific ordering suffix and environmental compliance status directly with the manufacturer or authorized distributors before procurement. Confirm that the package type matches the required PCB footprint dimensions. Ensure that the supply chain source provides valid traceability documentation. Check for any recent product change notifications that may affect specifications or availability.

Shift Registers Selection Notes

Select this component when multiple-output high-voltage current sourcing and sinking capability is required. It is suitable for driving plasma panels, vacuum fluorescent displays, and large matrix LCD displays. The device is designed primarily for printer applications but fits any scenario needing level shifting from low-voltage logic to high-voltage loads.

Shift Registers Part Context

This part belongs to the HV574 series of serial-to-parallel logic converters. It is distinct from other variants by its specific 80-channel configuration and 100-lead PQFP packaging. The device utilizes CMOS technology to bridge low-voltage control signals with high-voltage actuation requirements.

Shift Registers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs if considering alternative components.

Shift Registers FAQ

How does the DIR pin affect data shifting?

Connecting the DIR pin to GND causes counter-clockwise shifting, while connecting it to VDD causes clockwise shifting.

What is the function of the LE input?

Data transfers from the shift registers to the latches when the LE input is high. Data is stored in the latches when LE is low.