SN74GTLPH1645GQLR

Translators, Level Shifters Overview

The SN74GTLPH1645GQLR is a high-drive, 16-bit bus transceiver partitioned into two 8-bit segments. It provides LVTTL-to-GTLP and GTLP-to-LVTTL signal-level translation for asynchronous communication between data buses. The device operates with a supply voltage (VCC) of 3.15 V to 3.45 V and supports live insertion via Ioff, power-up 3-state, and BIAS VCC features. It includes adjustable edge-rate control (ERC) for optimizing data-transfer rates and signal integrity in distributed loads.

Translators, Level Shifters Feature Summary

• Bidirectional interface between GTLP signal levels and LVTTL logic levels
• Adjustable edge-rate control (ERC) input selects GTLP rise and fall times
• Supports live insertion through Ioff, power-up 3-state, and BIAS VCC circuitry
• TI-OPC circuitry limits ringing on unevenly loaded backplanes

Translators, Level Shifters Applications

• High-speed interface between cards operating at LVTTL logic levels and backplanes operating at GTLP signal levels
• Asynchronous communication between data buses
• Distributed load backplane applications requiring optimized signal integrity

Translators, Level Shifters Procurement Notes

Verify the specific GQL suffix indicates the 56-BGA Microstar Junior package configuration. Confirm that the component meets RoHS3 compliance standards as specified in the datasheet. Ensure compatibility with the recommended operating conditions, specifically the VCC range of 3.15 V to 3.45 V and the appropriate VTT and VREF settings for GTLP operation. Check for any obsolescence notices or lifecycle status updates from Texas Instruments.

Translators, Level Shifters Selection Notes

Select this component when a high-drive 16-bit transceiver is required for LVTTL-to-GTLP translation. Consider the adjustable edge-rate control feature if system design demands optimization of data-transfer rates and signal integrity for distributed backplane loads. Verify that the 56-BGA Microstar Junior package fits the PCB layout constraints and that the thermal performance aligns with the application environment.

Translators, Level Shifters Part Context

This part belongs to the Widebus family from Texas Instruments. It is designed for high-speed backplane applications where GTLP signaling is utilized. The device integrates TI-OPC and OEC circuitry to improve signal integrity and reduce electromagnetic interference. It serves as a bridge between standard LVTTL logic levels and the reduced output swing of GTLP signals.

Translators, Level Shifters Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.