SN74GTLPH16927KR

Translators, Level Shifters Overview

The SN74GTLPH16927KR is a medium-drive, 18-bit bus transceiver from the Texas Instruments Widebus family. It provides bidirectional LVTTL-to-GTLP and GTLP-to-LVTTL signal-level translation. The device supports transparent and latched data transfer modes and includes source-synchronous clock outputs (SSCLK) for minimized skew applications. It features TI-OPC circuitry to limit ringing on unevenly loaded backplanes and OEC circuitry to improve signal integrity. The A-port operates at LVTTL levels with 5-V tolerance, while the B-port operates at GTLP levels. It supports live insertion via Ioff, power-up 3-state, and BIAS VCC features.

Translators, Level Shifters Feature Summary

• Bidirectional interface between GTLP signal levels and LVTTL logic levels
• TI-OPC circuitry limits ringing on unevenly loaded backplanes
• OEC circuitry improves signal integrity and reduces electromagnetic interference
• GTLP buffered SYSCLK signal (SSCLK) for source-synchronous applications

Translators, Level Shifters Applications

• High-speed backplane operation
• Source-synchronous applications requiring minimized clock-to-data skew
• Live-insertion systems utilizing Ioff and BIAS VCC support

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix KR corresponds to the Microstar Junior BGA package when sourcing. Confirm current production status as NRND indicates it is not recommended for new designs. Ensure compatibility with existing PCB footprints designed for the GQL package. Check for alternative active packages like TSSOP or TVSOP if new design implementation is required.

Translators, Level Shifters Selection Notes

Select this component for systems requiring 18-bit widebus translation between LVTTL and GTLP domains. The inclusion of flexible setup-time adjustment (FSTA) makes it suitable for source-synchronous designs where precise timing alignment between clock and data paths is critical. Consider the medium-drive capability for heavily loaded backplanes.

Translators, Level Shifters Part Context

This part belongs to the SN74GTLPH16927 series within the Texas Instruments Widebus family. It serves as a high-speed interface solution bridging cards operating at LVTTL logic levels with backplanes using GTLP signal levels. The device integrates D-type latches and flip-flops to manage data-path operations in various modes.

Translators, Level Shifters Replacement Considerations

Public confirmed substitute part numbers: SN74GTLPH16927GR, SN74GTLPH16927VR.