74LVC2245AD,118

Overview

The Nexperia 74LVC2245AD,118 is an octal bus transceiver featuring integrated 30 Ω series termination resistors and 5 V tolerant I/O. It operates within a supply voltage range of 1.2 V to 3.6 V and provides 3-state outputs controlled by an output enable (OE) pin. The device includes a direction control input (DIR) for managing data flow between A and B ports. It supports partial power-down via IOFF circuitry and complies with JEDEC standards for low-voltage operation.

Feature Summary

• Integrated 30 Ω series termination resistors for signal integrity
• 5 V tolerant inputs and outputs for mixed-voltage environments
• IOFF circuitry enables safe partial power-down mode operation

Applications

• Mixed 3.3 V and 5 V system translation
• Partial power-down applications requiring backflow current prevention
• High-speed bus interfaces requiring controlled impedance

Procurement Notes

Verify the specific suffix 'AD' corresponds to the SO20 package (SOT163-1) as defined in the ordering information table. Confirm that the required operating temperature range matches the -40 °C to +125 °C specification listed for this variant. Ensure design compatibility with the 1.2 V to 3.6 V supply voltage limits before procurement.

Selection Notes

Select this component when 5 V tolerance is required alongside low-voltage logic families. The integrated termination resistors simplify PCB layout compared to discrete solutions. Verify that the SO20 package dimensions fit the target footprint, as other variants like APW or ABQ offer different physical packages for the same logical function.

Part Context

This part belongs to the 74LVC2245A family of octal transceivers. The 'AD' designation specifically identifies the plastic small outline package (SO20) version manufactured by Nexperia. It shares functional characteristics with other package variants such as TSSOP20 and DHVQFN20, differing primarily in physical form factor and thermal properties.

Replacement Considerations

Direct substitutes include 74LVC2245APW (TSSOP20) and 74LVC2245ABQ (DHVQFN20). These share identical electrical specifications but differ in package type. Cross-package replacement requires verifying mechanical fit and soldering requirements.