74LVC2244APW,112

Overview

The Nexperia 74LVC2244APW,112 is an octal buffer and line driver featuring 3-state outputs housed in a TSSOP20 package. 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 integrates 30 Ω series termination resistors and includes IOFF circuitry for partial power-down applications. It provides two independent output enable controls, allowing configuration as two 4-bit buffers or one 8-bit buffer.

Feature Summary

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

Applications

• Mixed 3.3 V and 5 V environment translation
• Partial power-down mode operation
• Line driving applications requiring series termination

Procurement Notes

Verify the specific ordering suffix '112' corresponds to the TSSOP20 (SOT360-1) package variant. Confirm that the required operating temperature range aligns with the -40 °C to +125 °C specification provided in the datasheet. Ensure design compatibility with the 5.5 V input tolerance limits before finalizing procurement.

Selection Notes

Select this component when designing systems requiring octal buffering with integrated series termination. It is suitable for mixed-voltage interfaces between 3.3 V and 5 V logic families. The inclusion of IOFF circuitry makes it appropriate for applications necessitating safe partial power-down states without external protection components.

Part Context

This part belongs to the 74LVC2244A family of octal buffers and line drivers. The APW suffix specifically denotes the TSSOP20 plastic thin shrink small outline package. Other variants in the family include SO20 and DHVQFN20 packages, offering flexibility for different board space and thermal requirements.

Replacement Considerations

Direct pin-compatible replacements within the same package include other 74LVC2244A variants such as the 74LVC2244AD,112 (SO20 package). Verify package dimensions and thermal characteristics when substituting with different package types from the same logical family.