SN74GTLP21395GQNR

Translators, Level Shifters Overview

The SN74GTLP21395GQNR is a dual 1-bit LVTTL-to-GTLP bus transceiver in a 20-pin VFBGA package. It operates at a supply voltage of 3.15V to 3.45V with an operating temperature range of -40°C to 85°C. The device features adjustable edge-rate control, split LVTTL ports for feedback, and selectable polarity. Propagation delays range from 1.4ns to 10.4ns depending on direction and edge rate settings.

Translators, Level Shifters Feature Summary

• Provides bidirectional signal translation between LVTTL logic levels and GTLP backplane signal levels.
• Features adjustable edge-rate control to optimize data-transfer rates and signal integrity for distributed loads.
• Includes TI-OPC circuitry to limit ringing on unevenly loaded backplanes and OEC circuitry to reduce electromagnetic interference.
• Supports live insertion through Ioff, power-up 3-state, and BIAS VCC circuitry.

Translators, Level Shifters Applications

• Primary and secondary clock distribution in parallel backplane systems
• High-speed interface between cards operating at LVTTL logic levels and backplanes operating at GTLP signal levels
• Integration with Texas Instruments 3.94 backplane physical-layer controllers

Translators, Level Shifters Procurement Notes

Verify the specific GQNR suffix indicates the Microstar Junior package variant. Confirm RoHS compliance status and lead-free material specifications against the latest manufacturer documentation. Ensure design-in compatibility with required operating temperatures and voltage ranges before finalizing procurement.

Translators, Level Shifters Selection Notes

Select this component when designing interfaces requiring individual output-enable controls and true/complement data transmission modes. The split LVTTL port allows for dedicated feedback paths suitable for control and diagnostics monitoring. Consider the adjustable edge-rate feature if optimizing signal integrity for heavily loaded backplanes is necessary.

Translators, Level Shifters Part Context

This device belongs to the SN74GTLP series of high-drive bus transceivers. It is designed specifically for applications requiring robust signal translation between different logic families. The part supports both asynchronous and isochronous data transfers common in high-performance serial bus environments.

Translators, Level Shifters Replacement Considerations

SN74GTLP21395DW

Translators, Level Shifters FAQ

How does the ERC input affect performance?

The Edge-Rate Control (ERC) input adjusts the B-port output rise and fall times. A high level selects slow edge rates, while a low level selects fast edge rates, allowing optimization for system data-transfer rates and signal integrity.

What is the function of the split LVTTL port?

The split LVTTL port provides separate A input and Y output pins. This configuration creates a feedback path that enables control and diagnostics monitoring of the data being transmitted.