74LVCH162244ADL,11

Overview

The Nexperia 74LVCH162244ADL,11 is a 16-bit buffer and line driver featuring 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 controlling the 3-state outputs. Inputs utilize Schmitt-trigger action for noise tolerance and bus hold circuitry to maintain unused input states without external pull-up resistors. IOFF circuitry prevents backflow current during partial power-down.

Feature Summary

• Integrated 30 Ohm series termination resistors for signal integrity
• Bus hold functionality on all data inputs eliminates need for external pull-ups
• IOFF circuitry disables outputs to prevent damaging backflow current when powered down
• Schmitt-trigger inputs provide tolerance for slower rise and fall times

Applications

• Mixed 3.3 V and 5 V logic environments
• Partial power-down applications requiring backflow protection
• Multibyte flow-through standard pin-out architectures

Procurement Notes

Verify the specific ordering suffix matches the required package type, as the datasheet indicates SSOP48 variants were removed in revision v.8. Confirm the component status against the most recent product data sheet to ensure availability. Check for any applicable PCNs regarding assembly sites or labeling changes before finalizing procurement orders.

Selection Notes

Select this component when 16-bit buffering with integrated termination is required. Ensure the application utilizes the LVCH family's bus hold feature to simplify design by removing external pull-up resistors. Verify that the 3.3 V to 3.6 V supply range aligns with system requirements and that 5 V tolerant inputs are necessary for interfacing.

Part Context

This part belongs to the 74LVC/LVCH162244A family of 16-bit buffers. While earlier revisions included SSOP48 packages, current documentation primarily lists TSSOP48 and TVSOP48 options. The LVCH variant specifically adds bus hold capabilities not present in the standard LVC version.

Replacement Considerations

Public confirmed substitute part numbers: 74LVC162244ADGG,11; 74LVCH162244ADGG,11.