SN74GTLP1394RGYR

Translators, Level Shifters Overview

The SN74GTLP1394RGYR is a high-drive, 2-bit, 3-wire bus transceiver providing LVTTL-to-GTLP and GTLP-to-LVTTL signal-level translation. It operates with a supply voltage range of 3.15 V to 3.45 V and supports an operating temperature from -40°C to 85°C. The device features adjustable edge-rate control (ERC) for optimizing data-transfer rates and signal integrity in distributed loads. It includes TI-OPC circuitry to limit ringing on unevenly loaded backplanes and OEC circuitry to improve signal integrity. The component 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
• Split LVTTL port provides a feedback path for control and diagnostics monitoring
• Adjustable edge-rate control input selects GTLP rise and fall times
• 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
• Interface with Texas Instruments 1394 backplane physical-layer controllers
• Providing multiple single-bit clocks or ATM read and write clock in multislot parallel backplane applications

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix RGYR corresponds to the QFN package and tape-and-reel packing format. Confirm that the GTLP termination voltage (VTT) and reference voltage (VREF) settings align with the system's noise margin requirements. Ensure the ERC pin configuration matches the desired edge rate for the target backplane load impedance.

Translators, Level Shifters Selection Notes

Select this component when a bidirectional translator between LVTTL and GTLP domains is required for high-speed backplane applications. Consider the adjustable edge-rate control feature if signal integrity optimization for distributed loads is necessary. Verify compatibility with the specific 1394 backplane PHY controller being used in the design.

Translators, Level Shifters Part Context

This device belongs to the SN74GTLP1394 family of bus transceivers designed for high-performance serial bus environments. It is specifically engineered to work with Texas Instruments 1394 backplane physical-layer controllers, facilitating robust communication in systems requiring live insertion and high-speed data transfer capabilities.

Translators, Level Shifters Replacement Considerations

SN74GTLP1394DGVRE4

Translators, Level Shifters FAQ

How does the device support live insertion?

The device supports live insertion through Ioff, power-up 3-state, and BIAS VCC features. Ioff disables outputs to prevent current backflow, power-up 3-state prevents driver conflicts, and BIAS VCC precharges connections to avoid disturbing active data.

What is the function of the ERC input?

The Adjustable Edge-Rate Control (ERC) input allows the designer to adjust the B-port output rise and fall times by changing the input voltage between GND and VCC, optimizing data-transfer rate and signal integrity.