74LVTH16835MTDX

Universal Bus Functions Overview

The onsemi 74LVTH16835MTDX is a low voltage 18-bit universal bus driver featuring D-type latches and flip-flops for transparent, latched, and clocked data flow. It operates at VCC from 2.7V to 3.6V with inputs compatible up to 5.5V. The device includes bushold data inputs to eliminate external pull-up resistors and provides 3-STATE outputs capable of sourcing -32 mA and sinking 64 mA. Fabricated using advanced BiCMOS technology, it ensures high-speed operation similar to 5V ABT while maintaining low power dissipation.

Universal Bus Functions Feature Summary

• Combines D-type latches and flip-flops to support transparent, latched, and clocked data modes via OE, LE, and CLK controls.
• Bushold data inputs maintain input states without requiring external pull-up resistors.
• Outputs provide 3-STATE capability with glitch-free loading during power up/down transitions.
• Input interface supports systems operating at 5V VCC while the core operates at low voltage.

Universal Bus Functions Applications

• High-density data buffering in low voltage environments
• Clocking and latching data registers in bus architectures
• Live insertion/extraction applications requiring high impedance states

Universal Bus Functions Procurement Notes

Verify that the ordering code matches the specific package variant required, as the datasheet lists separate codes for SSOP and TSSOP packages. Confirm the presence of the 'X' suffix if tape and reel packaging is needed, as standard ordering codes may default to tube packaging. Ensure the component meets the specified 56-lead requirement for the selected physical form factor.

Universal Bus Functions Selection Notes

Select this component when an 18-bit wide bus interface is required between 3.3V logic and 5V tolerant systems. The inclusion of bushold functionality simplifies design by removing the need for external pull-up components on unused inputs. Consider the 56-lead TSSOP or SSOP package constraints regarding board space and pin density requirements for the target application.

Universal Bus Functions Part Context

This device belongs to the LVTH series of low voltage bus drivers manufactured originally by Fairchild Semiconductor, now part of onsemi. It utilizes BiCMOS technology to bridge performance gaps between older 5V standards and modern low voltage logic families. The 18-bit configuration distinguishes it from standard 8-bit or 16-bit variants within the same logical family.

Universal Bus Functions Replacement Considerations

Check for equivalents such as the 74LVTH16835MEA (SSOP package) if the TSSOP footprint is not suitable. Verify compatibility with other 18-bit universal bus drivers from different manufacturers that offer similar 3-STATE output capabilities and 5V input tolerance.