74LVC2245AD,112

Overview

The Nexperia 74LVC2245AD,112 is an octal bus transceiver featuring integrated 30 Ω series termination resistors and 3-state outputs. It operates within a supply voltage range of 1.2 V to 3.6 V and supports overvoltage tolerant inputs up to 5.5 V. The device includes Schmitt-trigger action for noise immunity and IOFF circuitry for partial power-down protection. Direction control is managed via a DIR pin, while OE controls the output state. It is housed in a 20-lead SO plastic small outline package (SOT163-1) and functions as a translator between mixed 3.3 V and 5 V environments.

Feature Summary

• Integrated 30 Ω series termination resistors for signal integrity
• IOFF circuitry prevents damaging backflow current during power-down
• Schmitt-trigger inputs provide tolerance for slow rise and fall times
• Overvoltage tolerant inputs allow direct interface with 5 V devices

Applications

• Bidirectional level translation between mixed 3.3 V and 5 V logic systems
• Octal bidirectional bus interfaces requiring direction control
• Partial power-down applications utilizing IOFF functionality

Procurement Notes

Verify the specific ordering suffix '112' against official Nexperia documentation to confirm exact packaging and reel specifications. Ensure the selected package variant matches the required PCB footprint and thermal management needs. Confirm compliance with relevant environmental standards such as RoHS and REACH before finalizing procurement decisions.

Selection Notes

Select this component when designing systems that require integrated termination resistors to minimize external components. It is suitable for applications needing robust noise immunity through Schmitt-trigger inputs. Consider the 1.2 V to 3.6 V supply range and 5.5 V input tolerance when interfacing with various logic families. Verify that the SO20 package dimensions fit the available board space.

Part Context

This part belongs to the 74LVC2245A family of octal transceivers from Nexperia. The family provides bidirectional data transmission with direction control. Variants include different package options such as TSSOP and DHVQFN, but the AD suffix specifically denotes the SO20 plastic small outline package. All variants share the core functional characteristics including integrated termination and 5 V tolerance.

Replacement Considerations

Check for equivalent parts like the 74LVC245 if termination resistors are not required. Verify pin compatibility and electrical specifications before substituting.