SN74GTLP1395DW

Translators, Level Shifters Overview

The SN74GTLP1395DW is a dual 1-bit LVTTL-to-GTLP bus transceiver in a 20-pin SOIC package. It operates at VCC and BIAS VCC of 3.15V to 3.45V, with GTLP termination voltage (VTT) of 1.35V to 1.65V and reference voltage (VREF) of 0.87V to 1.1V. The device provides high-drive outputs: Y outputs handle ±24mA, while the B port handles up to 100mA low-level current. Propagation delays range from 1.6ns to 9.7ns depending on edge rate and direction. Operating temperature spans -40°C to +85°C.

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
• Supports live insertion via Ioff, power-up 3-state, and BIAS VCC circuitry

Translators, Level Shifters Applications

• Primary and secondary clocks requiring individual output-enable controls
• High-speed interface between cards operating at LVTTL logic levels and backplanes at GTLP signal levels
• IEEE 1394 backplane serial bus systems for data and strobe signals

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix 'DW' corresponds to the tube packaging format rather than tape and reel variants like 'DWR'. Confirm that the component meets RoHS requirements as specified in the manufacturer's documentation. Ensure compatibility with the required 3.3V supply voltage and appropriate termination voltages for the target GTLP application environment.

Translators, Level Shifters Selection Notes

Select this component when a split-port architecture is necessary to monitor data feedback independently from the main transmission path. The adjustable edge-rate feature allows optimization of signal integrity for distributed loads. Verify that the system requires high-drive capabilities for heavily loaded backplanes with low equivalent impedance.

Translators, Level Shifters Part Context

This device belongs to the SN74GTLP1395 series, designed specifically for Texas Instruments 3.3-V 1394 backplane physical-layer controllers. It utilizes OEC and TI-OPC circuitry to minimize bus settling time and limit ringing on unevenly loaded backplanes. The GTLP standard is a derivative of the Gunning Transceiver Logic JEDEC standard.

Translators, Level Shifters Replacement Considerations

SN74GTLP1395PWR

Translators, Level Shifters FAQ

How does the split LVTTL port function?

The device features separate LVTTL A input and Y output pins, providing a dedicated feedback path for control and diagnostics monitoring independent of the main B port data transfer.

What is the purpose of the ERC input?

The Variable Edge-Rate Control (ERC) input adjusts the B-port output rise and fall times. Setting ERC high results in slow edge rates, while setting it low results in fast edge rates, allowing optimization for data-transfer rate and signal integrity.