74LVC240ABQ,115

Overview

The Nexperia 74LVC240ABQ,115 is an octal buffer and line driver featuring inverting logic with three-state outputs. It operates within a supply voltage range of 1.2 V to 3.6 V and includes IOFF circuitry for partial power-down mode operation. The device supports two output enables, each controlling four outputs, and provides overvoltage tolerant inputs up to 5.5 V. It is housed in a DHVQFN20 package (SOT764-1) and is specified for ambient temperatures ranging from -40 °C to +125 °C.

Feature Summary

• Features Schmitt-trigger action at all inputs to tolerate slower input rise and fall times.
• Includes IOFF circuitry that disables outputs to prevent damaging backflow current during partial power-down.
• Allows direct interface with TTL levels and compatibility with mixed 3.3 V and 5 V environments.

Applications

• Partial power-down applications requiring protection against backflow current
• Mixed 3.3 V and 5 V signal translation environments
• Systems requiring tolerance for slow input transition rates

Procurement Notes

Verify the specific ordering suffix 'BQ' corresponds to the DHVQFN20 package variant when sourcing. Confirm the manufacturer designation as Nexperia USA Inc. matches your approved vendor list. Ensure the component status is verified as active production data sheet Rev. 10 before finalizing procurement specifications.

Selection Notes

Select this component when an octal inverting buffer with three-state capability is required. It is suitable for designs needing wide supply voltage flexibility between 1.2 V and 3.6 V. The inclusion of IOFF functionality makes it appropriate for systems managing partial power states. Verify that the DHVQFN20 package dimensions fit the PCB layout constraints.

Part Context

This part belongs to the 74LVC240A family of octal buffers and line drivers. The 'ABQ' designation specifically identifies the DHVQFN20 leadless package option within the broader series, which also includes SO20 and TSSOP20 variants. The '115' suffix indicates the standard tape and reel packaging configuration provided by Nexperia.

Replacement Considerations

Consult official Nexperia documentation for qualified substitutes. Cross-reference pinouts and electrical characteristics if considering alternatives from other manufacturers to ensure functional compatibility.