74LVC244ABQ/AUX

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74LVC244ABQ/AUX is an octal buffer and line driver featuring three-state outputs, housed in a 20-terminal DHVQFN package. It operates within a supply voltage range of 1.2 V to 3.6 V and supports inputs driven by 3.3 V or 5 V devices. The device includes IOFF circuitry for partial power-down applications and Schmitt-trigger action on all inputs. It provides two output enables, each controlling four outputs, and complies with JEDEC standards for various voltage ranges.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features overvoltage tolerant inputs capable of handling up to 5.5 V, allowing direct interfacing with 5 V logic devices.
• Includes IOFF circuitry that disables outputs to prevent damaging backflow current during partial power-down states.
• Incorporates Schmitt-trigger action at all input pins to ensure tolerance against slow input rise and fall times.

Buffers, Drivers, Receivers, Transceivers Applications

• Translating signals between mixed 3.3 V and 5 V environments
• Partial power-down mode operations requiring backflow current prevention
• Buffering data lines with high-impedance OFF-state control

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'AUX' against official Nexperia documentation, as standard datasheets list 'BQ' for the DHVQFN package. Confirm RoHS compliance and lead-free status via the manufacturer's latest ordering information. Ensure the component matches the SOT764-1 outline dimensions for proper PCB footprint integration.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal buffering with 3-state capability in low-voltage environments. It is suitable for applications needing interface translation between 1.2 V to 3.6 V logic and 5 V inputs. Consider the DHVQFN package for space-constrained designs requiring thermal enhancement.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74LVC244A family of octal buffers and line drivers. The 'BQ' designation indicates the DHVQFN20 package variant (SOT764-1). The device is part of Nexperia's CMOS low-power logic series, designed for compatibility with standard TTL levels while operating at reduced voltages.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74LVCH244ABQ is a compatible variant within the same family offering bus hold functionality on data inputs. Other packages such as SO20 (AD) or TSSOP20 (APW) provide equivalent electrical performance with different physical footprints.