74LVC2245APW,118

Overview

The Nexperia 74LVC2245APW,118 is an octal bus transceiver featuring 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. Packaged in a TSSOP20 (SOT360-1) format with 20 leads, it 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 partial power-down
• Schmitt-trigger inputs provide tolerance for slower rise and fall times
• Overvoltage tolerant inputs allow direct interfacing with 5 V devices

Applications

• Mixed 3.3 V and 5 V system translation
• Octal bidirectional bus interfaces
• High-speed data transmission lines requiring termination

Procurement Notes

Verify the specific ordering suffix '118' corresponds to the TSSOP20 package variant when sourcing. Confirm that the application environment remains within the specified 1.2 V to 3.6 V supply voltage limits. Ensure thermal management accounts for the power dissipation derating characteristics defined for the SOT360-1 package outline.

Selection Notes

Select this component when designing systems requiring integrated termination to reduce external component count. The 74LVC2245A is suitable for applications needing robust ESD protection and compatibility with TTL logic levels. Consider the TSSOP20 package dimensions if PCB space constraints require a thin shrink small outline form factor.

Part Context

This part belongs to the 74LVC2245A family of octal transceivers. The APW suffix specifically denotes the TSSOP20 plastic thin shrink small outline package version. It shares functional similarities with other LVC series devices but is distinguished by its integrated termination resistors and specific pinout configuration for direction control.

Replacement Considerations

Direct replacements include the 74LVC2245AD (SO20 package) or 74LVC2245ABQ (DHVQFN20 package). Verify package footprint compatibility before substitution. Other families like 74LV245 lack the integrated termination resistors and may require external components.