74HCT244D-Q100,118

Overview

The Nexperia 74HCT244D-Q100,118 is an octal buffer and line driver featuring three-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V. The device contains two independent four-bit buffers controlled by separate output enable inputs (1OE and 2OE). It utilizes TTL input levels and provides non-inverting logic. The component is housed in a 20-lead SO plastic small outline package (SOT163-1) with a body width of 7.5 mm.

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards for durability in vehicle environments.
• Features high noise immunity and CMOS low power dissipation characteristics.
• Includes clamp diodes on inputs to facilitate interfacing with voltages exceeding the supply voltage.
• Provides robust latch-up performance exceeding specified JESD 78 Class II Level B limits.

Applications

• Octal bus interface systems
• Automotive electronic circuits
• Line driving applications

Procurement Notes

Verify that the specific part number matches the required automotive grade and package type. Confirm the operating temperature range aligns with system requirements. Ensure compatibility with the intended supply voltage levels. Check for any recent product change notices regarding packaging or assembly processes.

Selection Notes

Select this component when an octal buffer with three-state outputs is required for automotive applications. It is suitable for designs needing TTL-compatible inputs and high noise immunity. Consider the SO20 package dimensions for PCB layout constraints. Verify that the supply voltage remains within the specified 4.5 V to 5.5 V range.

Part Context

This device belongs to the 74HCT244-Q100 series, which includes variants like the 74HC244-Q100. The HCT designation indicates TTL input levels, distinguishing it from HC versions with CMOS levels. The Q100 suffix denotes automotive qualification. Other package options include TSSOP20 and DHVQFN20.

Replacement Considerations

Direct substitutes include other 74HCT244 variants from Nexperia such as the 74HCT244PW-Q100 or 74HCT244BQ-Q100, provided the package type matches the design requirements. Cross-manufacturer equivalents must be verified for pinout and electrical specification compatibility.