74LVCH162244ADGVJ

Overview

The Nexperia 74LVCH162244ADGVJ is a 16-bit buffer and line driver featuring 30 Ω series termination resistors and 5 V tolerant inputs/outputs with 3-state capabilities. It operates within a supply voltage range of 1.2 V to 3.6 V and supports an input voltage up to 5.5 V. The device includes IOFF circuitry for partial power-down protection and bus hold functionality on data inputs. It is housed in a TVSOP48 (SOT480-1) package, providing four output enables to control the 3-state outputs independently.

Feature Summary

• Integrates 30 Ohm series termination resistors directly into the output stage for signal integrity.
• Features IOFF circuitry that disables outputs to prevent damaging backflow current during partial power-down.
• Includes bus hold circuits on all data inputs to maintain logic states without external pull-up components.
• Provides Schmitt-trigger action at inputs to ensure tolerance against slow rise and fall times.

Applications

• Mixed 3.3 V and 5 V system environments requiring level translation
• Partial power-down applications utilizing IOFF functionality
• High-speed digital buses requiring controlled impedance via internal termination

Procurement Notes

Verify the specific ordering suffix 'J' against official Nexperia documentation to confirm tape-and-reel packaging specifications. Ensure the selected variant matches the required temperature range and package dimensions. Cross-reference the full part number with the manufacturer's latest datasheet revision history to confirm active status and any recent pinning or electrical specification updates.

Selection Notes

Select this component when designing systems that require 16-bit buffering with integrated series termination to minimize reflections. The LVCH family offers lower power consumption compared to standard LVC variants while maintaining 5 V tolerance. Consider the TVSOP48 package constraints regarding body width and lead pitch if PCB space is limited. Verify that the application does not exceed the maximum operating temperature of +125 °C.

Part Context

This device belongs to the Nexperia 74LVC/LVCH 162244A family of 16-bit buffers. It shares functional similarities with the 74LVC162244ADGV but distinguishes itself through the inclusion of internal 30 Ohm termination resistors and enhanced bus hold features characteristic of the LVCH sub-family. It serves as a high-performance interface solution for modern low-voltage digital systems.

Replacement Considerations

The 74LVC162244ADGV is a compatible alternative within the same family, though it lacks the internal 30 Ohm termination resistors found in the LVCH variant. Designers must evaluate whether the external termination requirements of the LVC version can be accommodated in their layout if substituting this part.