74LVCH162244ADGG,5

Overview

The Nexperia 74LVCH162244ADGG,5 is a 16-bit buffer and line driver featuring integrated 30 Ohm series termination resistors and 3-state outputs. It operates within a supply voltage range of 1.2 V to 3.6 V and supports inputs driven by 3.3 V or 5 V devices. The device includes four output enables (1OE, 2OE, 3OE, 4OE) controlling the 3-state outputs. Data inputs feature bus hold circuitry to eliminate external pull-up requirements. It utilizes Schmitt-trigger action for noise tolerance and IOFF circuitry for partial power-down protection.

Feature Summary

• Integrated 30 Ohm series termination resistors on all data lines
• Bus hold functionality on data inputs to maintain logic states without external components
• IOFF circuitry prevents damaging backflow current during partial power-down conditions
• Schmitt-trigger inputs provide tolerance for slow input rise and fall times

Applications

• Mixed 3.3 V and 5 V voltage translation environments
• Partial power-down applications requiring backflow current prevention
• High-speed bus buffering with integrated signal termination
• Systems requiring tolerant handling of slow input transition rates

Procurement Notes

Verify the specific ordering suffix ',5' against official Nexperia documentation to confirm package type and tape/reel specifications. Ensure the selected variant matches the required temperature range and physical footprint for your PCB layout. Cross-reference the full part number with the manufacturer's active product status list to confirm availability and compliance with current RoHS standards before finalizing procurement.

Selection Notes

Select this component when designing systems that require 16-bit buffering with integrated transmission line termination. It is suitable for interfaces between 3.3 V and 5 V logic domains due to its overvoltage tolerant inputs. The inclusion of bus hold features simplifies design by removing the need for external pull-up resistors on unused inputs. Consider the TSSOP48 package dimensions and thermal derating characteristics for proper heat dissipation in high-density layouts.

Part Context

This device belongs to the Nexperia LVCH logic family, designed for low-voltage CMOS applications. It shares functional similarities with the 74LVC162244A but distinguishes itself through the addition of internal 30 Ohm series termination resistors and bus hold capabilities on the data inputs. These features enhance signal integrity and simplify board design compared to standard buffer variants lacking these integrations.

Replacement Considerations

The 74LVC162244ADGG is a related variant within the same family but lacks the bus hold feature and potentially different termination characteristics. Verify if the absence of bus hold impacts your design requirements. Other 16-bit buffers like the 74LVC16244 may serve as functional substitutes but lack the integrated termination resistors and specific bus hold functionality found in the LVCH version.