SN74GTLP21395PWE4

Translators, Level Shifters Overview

The SN74GTLP21395PWE4 is a dual 1-bit LVTTL-to-GTLP adjustable-edge-rate bus transceiver in a 20-pin TSSOP package. It operates with a supply voltage of 3.15 V to 3.45 V and supports an operating temperature range of -40°C to 85°C. The device provides bidirectional interface between GTLP signal levels and LVTTL logic levels, featuring split LVTTL ports for feedback paths and selectable polarity control.

Translators, Level Shifters Feature Summary

• Provides bidirectional signal translation between LVTTL logic levels and GTLP backplane signal levels.
• Features adjustable edge-rate control (ERC) to optimize data-transfer rates and signal integrity.
• Includes TI-OPC circuitry to limit ringing on unevenly loaded backplanes.
• Supports live insertion through Ioff, power-up 3-state, and BIASVCC circuitry.

Translators, Level Shifters Applications

• Primary and secondary clock distribution in parallel backplane systems
• High-speed interface between cards operating at LVTTL levels and backplanes at GTLP levels
• Integration with Texas Instruments 3.3-V 1394 backplane physical-layer controllers

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix 'E4' against the manufacturer's current product status documentation. Confirm that the component matches the active production specifications for the SN74GTLP21395 series. Ensure the package type and pinout correspond to the 20-pin TSSOP configuration defined in the official datasheet.

Translators, Level Shifters Selection Notes

Select this component when designing interfaces requiring LVTTL-to-GTLP translation with high-drive capabilities. It is suitable for applications needing individual output-enable controls and true/complement data transmission options. Consider the adjustable edge-rate feature for optimizing signal integrity in distributed load environments.

Translators, Level Shifters Part Context

This part belongs to the SN74GTLP21395 family of bus transceivers manufactured by Texas Instruments. The family is designed for high-speed serial bus applications, specifically supporting the IEEE 1394 standard in backplane environments. The device facilitates robust communication between host processors and peripheral nodes.

Translators, Level Shifters Replacement Considerations

SN74GTLP21395DWR

Translators, Level Shifters FAQ

What is the function of the ERC input?

The ERC input selects the rise and fall times for the GTLP outputs, allowing optimization of the data-transfer rate and signal integrity for distributed loads.

How does the device support live insertion?

It supports live insertion via Ioff, power-up 3-state, and BIASVCC circuitry, which prevent damaging current backflow and driver conflicts during power transitions or card insertion.