PI74LPT244CQE

Buffers, Drivers, Receivers, Transceivers Overview

The PI74LPT244CQE is an 8-bit buffer/line driver manufactured by Diodes Incorporated, housed in a 20-pin QSOP package. It operates within a supply voltage range of 2.7V to 3.6V and supports an industrial temperature range from -40°C to +85°C. The device features balanced drive capabilities with output currents up to 24mA sink and source. Propagation delay (tPLH/tPHL) ranges from 1.5ns to 4.1ns depending on load conditions. Input hysteresis is specified at 150mV, and quiescent current is typically 10µA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-signal mode operation allowing inputs to be driven by 3V or 5V signals while outputs interface with 3V or 5V buses.
• Provides balanced drive characteristics for lower ground bounce, transmission line matching, and reduced EMI/RFI effects.
• Features input hysteresis on all pins to improve noise immunity.

Buffers, Drivers, Receivers, Transceivers Applications

• Driving high capacitive memory loads
• On-board bus driving
• Transmission line signal driving

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific speed grade suffix 'C' corresponds to the required propagation delay specifications for your application timing constraints. Confirm that the 'E' suffix indicates Pb-free and Green packaging compliance if environmental regulations apply. Ensure the QSOP-20 footprint matches your PCB design requirements before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing between 3.3V logic and 5V tolerant systems requiring high-speed buffering. Consider the PI74LPT244CQE for applications needing balanced output drive to minimize signal reflections on transmission lines. Evaluate the 20-pin QSOP package size against available board space compared to TSSOP or SOIC alternatives.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the LPT family of fast CMOS devices designed for low power and high-speed performance. It is functionally compatible with LCX and LVT families, facilitating upgrades or replacements in existing designs utilizing those logic standards. The device serves as a translator in mixed voltage environments.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include other PI74LPT244 variants with different packages such as PI74LPT244AQE (QSOP), PI74LPT244ASE (SOIC), or PI74LPT244AHE (SSOP). Verify pin compatibility and speed grade differences when substituting.