SN74LVCH16540ADGGR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVCH16540ADGGR is a 16-bit buffer/driver with 3-state outputs from the Texas Instruments Widebus family. It operates from 1.65 V to 3.6 V and features inputs that accept voltages up to 5.5 V, supporting mixed-mode signal operation. The device provides a maximum propagation delay of 3.7 ns at 3.3 V. It includes active bus-hold circuitry on data inputs to eliminate external pullup/pulldown resistors. The package is TSSOP-48 (DGG) and supports partial-power-down mode via Ioff circuitry.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation allowing 5-V input/output voltage with 3.3-V VCC
• Active bus-hold circuitry maintains valid logic states on unused or undriven inputs
• Ioff circuitry disables outputs to prevent damaging current backflow during partial-power-down

Buffers, Drivers, Receivers, Transceivers Applications

• Wide data path bus interfaces
• Mixed 3.3-V/5-V system environments
• Partial-power-down applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package type, as the DGG designation corresponds to the TSSOP package. Confirm RoHS compliance and lead finish specifications against the latest packaging information addendum. Ensure the operating temperature range aligns with the application requirements before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for high-performance wide data paths requiring 16-bit buffering. It is suitable for translating signals between 3.3-V and 5-V domains due to its 5.5-V input tolerance. Consider the 3.7 ns propagation delay and active bus-hold features when designing systems that require precise timing control without external pull-up components.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the Texas Instruments Widebus family, designed for high-density bus interface applications. It is part of the LVCH series, which offers low-voltage CMOS performance. The SN74LVCH16540A variant specifically provides non-inverting 16-bit buffering capabilities within a compact TSSOP-48 package.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for SN74LVCH16540ADL if an SSOP package is preferred. Verify functional compatibility with other 16-bit LVCH buffers in the same family.