74LVT2244PW,112

Overview

The Nexperia 74LVT2244PW,112 is a BiCMOS octal buffer and line driver featuring 3-state outputs. It operates within a supply voltage range of 2.7 V to 3.6 V. The device integrates two independent output enables (1OE and 2OE) controlling four outputs each. It includes bus hold data inputs to eliminate external pull-up resistors for unused lines. Internal 30 Ω series resistance in both HIGH and LOW states reduces line noise. The component supports live insertion and extraction.

Feature Summary

• Integrated 30 Ω series termination resistors in output paths to reduce line noise
• Bus hold functionality on data inputs to define unused input states without external components
• IOFF circuitry enabling partial power-down mode operation
• Overvoltage tolerant inputs allowing direct interface with 5.5 V signals

Applications

• Memory address drivers
• Clock drivers
• Bus receivers and transmitters

Procurement Notes

Verify the specific ordering suffix matches the required package type. Confirm the revision level against the latest product data sheet to ensure compliance with current JEDEC ESD specifications. Check manufacturer longevity status as availability may vary by region.

Selection Notes

Select this component when low-voltage 3.3 V systems require high-speed buffering with integrated termination. The 30 Ω internal resistance simplifies PCB layout by removing external series resistors. Ensure the application utilizes the bus hold feature to manage floating inputs effectively.

Part Context

This part belongs to the 74LVT logic family designed for low-voltage applications. It functions as an octal buffer/line driver with 3-state outputs. The PW suffix indicates a TSSOP20 plastic thin shrink small outline package. It is manufactured by Nexperia USA Inc.

Replacement Considerations

Check for 74LVT2244 variants in different packages such as SO20. Verify compatibility with existing bus hold and termination requirements before substitution.

FAQ

How does the device handle unused inputs?

The 74LVT2244 features bus hold data inputs that maintain the last held state, eliminating the need for external pull-up or pull-down resistors.

What is the purpose of the internal 30 Ω resistors?

The internal 30 Ω series resistance in both HIGH and LOW output states is designed to reduce line noise in memory address, clock, and bus applications.