SN74HC244QPWREPG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HC244QPWREPG4 is an octal buffer and line driver from the Texas Instruments SN74HC series, featuring three-state outputs. It operates within a supply voltage range of 2 V to 6 V and supports a maximum operating temperature of +125 °C. The device utilizes a TSSOP-20 surface-mount package. Key electrical characteristics include a static current of 8 uA and a low-level output current of 7.8 mA. Propagation delay varies with voltage: 115 ns at 2 V, 23 ns at 4.5 V, and 20 ns at 6 V.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight non-inverting buffers with three-state outputs for signal isolation and driving.
• Designed for automotive applications with qualification under AEC-Q100 standards.
• Operates reliably across an extended industrial temperature range up to +125 °C.

Buffers, Drivers, Receivers, Transceivers Applications

• Automotive electronic systems requiring high reliability
• Signal buffering in data communication interfaces
• Line driving for bus architectures

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the complete part number including the EP suffix, which indicates enhanced product compliance. Confirm that the specific revision matches the required AEC-Q100 qualification level for automotive use. Ensure the TSSOP-20 package variant aligns with the PCB footprint design. Cross-reference the datasheet version to confirm propagation delay specifications match the target application timing requirements.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when automotive-grade reliability and extended temperature operation are mandatory. The HC logic family offers compatibility with standard CMOS levels while providing sufficient drive strength for most digital buses. Consider the TSSOP-20 package constraints regarding thermal dissipation and board space. Verify that the 2 V to 6 V supply range covers the system's power rail variations without exceeding absolute maximum ratings.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the SN74HC244 family of octal buffers. The 'Q' prefix denotes automotive qualification, while 'EP' signifies enhanced product status. It shares functional similarities with the SN74HC244PWR but differs in qualification standards and temperature ranges. The device serves as a critical interface element in digital circuits requiring isolated, driven signals.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74HC244QPWRG4Q1 is a confirmed public substitute within the same automotive qualified family. Both parts share identical logical functions and pinouts. Verify package compatibility and ensure the replacement meets the specific AEC-Q100 grade requirements of the original design.