SN74LVT16835DL

Overview

The SN74LVT16835DL is an obsolete 18-bit universal bus driver utilizing Advanced BiCMOS (ABT) technology. It operates at a supply voltage of 2.7 V to 3.6 V and supports mixed-mode signal operation with 5-V tolerant inputs and outputs. The device features 3-state outputs, active bus-hold circuitry on data inputs, and a flow-through architecture for optimized PCB layout. It is housed in a 56-pin Plastic Shrink Small-Outline (DL) package.

Feature Summary

• Supports mixed-mode signal operation allowing 5-V input and output voltages with 3.3-V VCC operation
• Active bus-hold circuitry eliminates the need for external pullup or pulldown resistors on data inputs
• Flow-through architecture optimizes printed circuit board layout efficiency

Applications

• Low-voltage memory mapping applications
• Clock drivers
• Bus-oriented architectures requiring 18-bit data transfer

Procurement Notes

Verify component obsolescence status prior to procurement as this specific DL package variant is marked obsolete by Texas Instruments. Confirm availability through authorized distributors or secondary market suppliers. Ensure design-in compliance with current RoHS standards if applicable to the specific manufacturing lot. Review the latest datasheet revision for any parameter updates before finalizing specifications.

Selection Notes

Select this component for designs requiring 18-bit data buffering with TTL-compatible interface capabilities. The ABT technology provides low static power dissipation suitable for battery-operated systems. Consider the 5-V tolerance feature when interfacing with legacy 5-V logic systems while maintaining a 3.3-V core supply. Evaluate the 56-pin SSOP footprint constraints against available PCB real estate.

Part Context

This device belongs to the Widebus family of logic components from Texas Instruments. It is part of the LVT series designed for 3.3-V operation. The SN74LVT16835 serves as a high-density solution for expanding bus width in digital systems, offering increased I/O pin density compared to standard small-outline packages within the same physical area.

Replacement Considerations

Check for equivalent parts in the SN74LVC or SN74ALVC families. Verify pin compatibility and electrical characteristics such as propagation delay and drive strength. Ensure the replacement supports the required 5-V input tolerance if interfacing with 5-V systems.