74LVC245ADB,112

Overview

The Nexperia 74LVC245ADB,112 is an octal bus transceiver with 3-state outputs belonging to the 74LVC logic family. It operates within a supply voltage range of 1.2 V to 3.6 V and features inputs tolerant to 5.5 V for mixed-voltage interfacing. The device includes Schmitt-trigger action on all inputs and IOFF circuitry for partial power-down applications. It utilizes a 20-lead SO plastic small outline package (SOT163-1) and supports operation from -40 °C to +125 °C.

Feature Summary

• Provides bidirectional data transmission between two 8-bit buses using direction control (DIR) and output enable (OE) signals.
• Features overvoltage tolerant inputs allowing direct interface with 5 V devices while operating at lower supply voltages.
• Includes IOFF circuitry to disable outputs and prevent damaging backflow current during partial power-down states.

Applications

• Mixed 3.3 V and 5 V system environments
• Partial power-down mode operations
• General-purpose bidirectional bus driving

Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm that the 'ADB' designation corresponds to the SO20 package type as specified in the official Nexperia documentation. Ensure compatibility with the intended operating temperature range and voltage levels before procurement.

Selection Notes

Select this component when an 8-bit bidirectional transceiver is required for low-voltage CMOS applications. It is suitable for designs needing direct interfacing between different voltage domains without external level shifting components. Consider the SO20 package constraints regarding PCB space and thermal dissipation requirements.

Part Context

This part belongs to the 74LVC245A series, which are widely used octal bus transceivers. The 'ADB' suffix specifically identifies the SO20 plastic small outline package variant. It shares functional characteristics with other packages in the family but differs in physical dimensions and pin layout.

Replacement Considerations

Check for equivalent parts such as the 74LVC245AD,118 or other manufacturers' 74LVC245 variants. Verify pinout compatibility and electrical specifications match the original design requirements before substitution.