74LVC2244AD,118

Overview

The Nexperia 74LVC2244AD,118 is an octal buffer and line driver featuring 3-state outputs housed in a 20-lead SO plastic small outline package (SOT163-1). It operates within a supply voltage range of 1.2 V to 3.6 V and supports inputs up to 5.5 V. The device includes integrated 30 Ω series termination resistors and IOFF circuitry for partial power-down protection. It functions as two independent 4-bit buffers or one 8-bit buffer with Schmitt-trigger inputs.

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 slow rise and fall times
• 5 V tolerant inputs allow direct interfacing with 3.3 V and 5 V devices

Applications

• Translators in mixed 3.3 V and 5 V environments
• Line driving applications requiring controlled impedance
• Partial power-down mode operation systems

Procurement Notes

Verify the specific ordering suffix '118' corresponds to the standard tape-and-reel packaging configuration. Confirm that the SO20 package variant matches the required PCB footprint dimensions. Ensure the application environment remains within the specified -40 °C to +125 °C temperature range for optimal performance.

Selection Notes

Select this component when 5 V tolerance is required alongside low-voltage logic compatibility. The integrated termination resistors make it suitable for high-speed data lines where external components must be minimized. Verify that the 3-state output control signals align with the system's bus architecture requirements.

Part Context

This part belongs to the 74LVC2244A family of octal buffers. The 'AD' designation specifically identifies the SO20 plastic small outline package version. Other variants in the family include TSSOP20 and DHVQFN20 packages, offering flexibility for different board space constraints while maintaining identical electrical characteristics.

Replacement Considerations

Direct substitutes include other 74LVC2244A variants from Nexperia such as the 74LVC2244APW (TSSOP20) or 74LVC2244ABQ (DHVQFN20), provided the package form factor is adaptable.