SN74HCS244QWRKSRQ1

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCS244QWRKSRQ1 is an automotive-grade octal buffer and line driver featuring Schmitt-trigger inputs and three-state outputs. It operates within a supply voltage range of 2 V to 6 V and supports an ambient temperature range from -40°C to +125°C. The device utilizes a 20-pin VQFN package with wettable flanks. Electrical characteristics include a typical supply current of 100 nA, output drive capability of ±7.8 mA at 6 V, and propagation delays ranging from 6 ns to 45 ns depending on voltage.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Schmitt-trigger inputs provide high noise immunity and tolerance for slow or noisy input signals
• Three-state outputs allow connection to data buses without signal contention
• Wettable flank QFN package facilitates automatic optical inspection (AOI) for solder joint verification

Buffers, Drivers, Receivers, Transceivers Applications

• Enable or disable digital signals in automotive systems
• Eliminate slow or noisy input signals through hysteresis filtering
• Hold signals during controller reset sequences
• Debounce mechanical switches

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package type and lead configuration. Confirm that the component meets AEC-Q100 qualification standards for the intended automotive application environment. Ensure compatibility with system voltage levels and thermal management requirements before finalizing procurement specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits requiring robust noise rejection for slow-rising signals. The wide operating voltage range allows flexibility in power supply design. Consider the low static power consumption for battery-operated applications. Verify that the package footprint aligns with existing PCB layout constraints and manufacturing capabilities.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74HCS244-Q1 family of high-speed CMOS logic devices. It is specifically designed for automotive electronics where reliability under harsh electrical conditions is critical. The HCS series combines the speed of standard CMOS with the noise immunity of Schmitt triggers, making it suitable for complex automotive bus architectures.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct replacements must maintain the same logic function, voltage range, and package dimensions. Verify that alternative components also feature Schmitt-trigger inputs if noise immunity is required. Check for equivalent AEC-Q100 qualification status to ensure automotive reliability compliance.