SN74GTLP817DWR

Translators, Level Shifters Overview

The SN74GTLP817DWR is a GTLP-to-LVTTL and LVTTL-to-GTLP fanout driver in a 24-pin SOIC (DW) package. It operates at VCC = 3.3V with VTT = 1.5V and VREF = 1V for GTLP levels. The device provides medium-drive GTLP outputs (50 mA IOL) and reduced-drive LVTTL outputs (-12 mA/12 mA). Propagation delays range from 1.5 ns to 6.3 ns depending on edge rate control (ERC). Operating temperature spans -40°C to +85°C.

Translators, Level Shifters Feature Summary

• Bidirectional interface between GTLP signal levels and LVTTL logic levels
• Variable edge-rate control input selects GTLP rise and fall times
• Ioff and power-up 3-state support hot insertion
• Distributed VCC and GND pins minimize high-speed switching noise

Translators, Level Shifters Applications

• High-speed backplane operation
• Cards operating at LVTTL logic levels
• Backplanes operating at GTLP signal levels

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix 'DWR' corresponds to the tape and reel packaging variant of the SN74GTLP817. Confirm that the required operating voltage and termination voltages align with the recommended operating conditions specified in the datasheet. Ensure the design accommodates the distributed load characteristics if used in backplane applications.

Translators, Level Shifters Selection Notes

Select this component when interfacing between LVTTL cards and GTLP backplanes. Consider the ERC pin for optimizing data-transfer rates and signal integrity. Verify that the package type matches the PCB layout requirements, as other variants like PWR or DGVR exist.

Translators, Level Shifters Part Context

This part belongs to the SN74GTLP817 family of mixed-signal converters. It serves as a bridge between different logic families, specifically translating between LVTTL and GTLP standards. The device is designed to improve signal integrity and reduce electromagnetic interference in high-speed digital systems.

Translators, Level Shifters Replacement Considerations

SN74GTLP817DGVR

Translators, Level Shifters FAQ

What is the function of the ERC input?

The ERC input allows variable edge-rate control, selecting GTLP rise and fall times to optimize data-transfer rate and signal integrity.

How does the device support hot insertion?

It features Ioff and power-up 3-state circuitry to disable outputs during power-down and power-up, preventing damaging current backflow and driver conflicts.