74LVCH244ABQ-Q100X

Overview

The Nexperia 74LVCH244ABQ-Q100X is an octal non-inverting buffer and line driver featuring three-state outputs, housed in a DHVQFN20 (SOT764-1) package. It operates within a supply voltage range of 1.2 V to 3.6 V and supports inputs up to 5.5 V for mixed-voltage interfacing. The device includes bus hold functionality on all data inputs to eliminate external pull-up requirements. Qualified to AEC-Q100 Grade 1 standards, it functions reliably from -40 °C to +125 °C.

Feature Summary

• Bus hold circuitry on all data inputs prevents floating states without external resistors
• High noise immunity via Schmitt-trigger action at all input pins
• Outputs maintain high-impedance state when supply voltage is zero
• Inputs tolerate voltages up to 5.5 V for direct 5 V logic interfacing

Applications

• Automotive electronic systems requiring AEC-Q100 Grade 1 qualification
• Mixed voltage environments bridging 3.3 V and 5.0 V logic domains
• Octal bus transmission lines with controlled three-state output enablement

Procurement Notes

Verify the specific ordering suffix matches the required tape and reel quantity configuration. Confirm that the DHVQFN20 package variant aligns with your PCB footprint design rules. Ensure the automotive grade designation corresponds to your project's reliability specifications before finalizing procurement orders.

Selection Notes

Select this component when an octal buffer with bus hold capability is required for automotive or industrial applications. The DHVQFN20 package offers thermal enhancement suitable for space-constrained designs. Verify that the 1.2 V to 3.6 V supply range meets your system power architecture requirements.

Part Context

This part belongs to the Nexperia 74LVC/LVCH244A-Q100 family of octal buffers. It shares functional similarities with other members like the 74LVC244ABQ-Q100 but distinguishes itself through integrated bus hold features on data inputs. The Q100 suffix indicates automotive qualification, differentiating it from standard commercial variants.

Replacement Considerations

Direct substitutes include the 74LVC244ABQ-Q100, though it lacks bus hold functionality. Other compatible options within the same family are the 74LVCH244AD-Q100 and 74LVCH244APW-Q100, provided the package type matches the design constraints.