SN74GTLP1395DWG4

Translators, Level Shifters Overview

The SN74GTLP1395DWG4 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. Propagation delay from A to B ranges from 1.6ns to 6.3ns depending on edge rate. The device supports adjustable edge-rate control, split LVTTL ports for feedback, and selectable polarity.

Translators, Level Shifters Feature Summary

• Provides bidirectional signal-level translation between LVTTL logic levels and GTLP backplane signal levels.
• Features a split LVTTL port architecture that separates input and output pins to enable a dedicated feedback path for diagnostics and control monitoring.
• Includes TI-OPC circuitry to actively limit overshoot caused by unevenly loaded backplanes or improper termination during low-to-high transitions.
• Supports live insertion through Ioff power-down protection, power-up three-state outputs, and BIAS VCC precharging of the B-port connections.

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 using GTLP signal levels
• Implementation of IEEE 1394 backplane serial bus physical layer connections

Translators, Level Shifters Procurement Notes

Verify the G4 suffix indicates RoHS compliance and halogen-free manufacturing status as per Texas Instruments standards. Confirm the specific DW package variant matches the required PCB footprint dimensions and thermal characteristics. Ensure the ordering part number aligns with the tube packaging format specified for this package type.

Translators, Level Shifters Selection Notes

Select this component when designing interfaces requiring separate control and data paths for diagnostic feedback. The adjustable edge-rate control allows optimization of signal integrity against varying backplane loads. Verify compatibility with the target system's termination voltage requirements and ensure sufficient drive current capability for the connected load impedance.

Translators, Level Shifters Part Context

This device belongs to the SN74GTLP family of Gunning-transceiver-logic-plus devices designed for high-speed telecommunications and datacom backplanes. It serves as a bridge between standard LVTTL logic and the reduced-swing GTLP signaling standard, facilitating faster data transfer rates while maintaining signal integrity in distributed load environments.

Translators, Level Shifters Replacement Considerations

SN74GTLP1395DW is the non-RoHS equivalent. SN74GTLP1395DWR is the tape-and-reel version of the same functional device. SN74GTLP1395PWR offers identical functionality in a TSSOP-20 package.