74LVC2244ADB,118

Overview

The Nexperia 74LVC2244ADB,118 is an octal buffer and line driver featuring 3-state outputs with integrated 30 Ω series termination resistors. It operates within a supply voltage range of 1.2 V to 3.6 V and supports inputs tolerant up to 5.5 V. The device includes IOFF circuitry for partial power-down applications. It utilizes Schmitt-trigger inputs for noise immunity and complies with JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36.

Feature Summary

• Integrated 30 Ω series termination resistors for signal integrity
• IOFF circuitry enables safe partial power-down mode operation
• Inputs tolerate voltages up to 5.5 V while operating at lower supplies

Applications

• Translating signals between mixed 3.3 V and 5 V environments
• Partial power-down bus systems requiring backflow current prevention
• Line driving applications needing controlled impedance termination

Procurement Notes

Verify the specific ordering suffix 'ADB' against official Nexperia documentation to confirm package type and availability status. Confirm that the component matches the required temperature range and electrical specifications for your design environment before finalizing procurement orders.

Selection Notes

Select this component when designs require both 3-state buffering and integrated series termination to reduce external components. Ensure the application benefits from the 5.5 V input tolerance if interfacing with higher voltage logic levels. Verify that the SO20 package dimensions fit the target PCB layout constraints.

Part Context

This part belongs to the 74LVC2244A family of octal buffers. Unlike standard variants, it incorporates internal termination resistors and robust input protection. The product data sheet indicates that previous SSOP20 versions have been removed in favor of other package options like SO20 and TSSOP20.

Replacement Considerations

Standard 74LVC244 variants lack the integrated 30 Ω termination resistors. If termination is required externally, those parts may serve as functional substitutes. Verify pin compatibility and ensure the replacement supports the necessary 5.5 V input tolerance.