SN74GTLP2034DGVR

Specialty Logic Overview

The SN74GTLP2034DGVR is an 8-bit LVTTL-to-GTLP adjustable-edge-rate registered transceiver with a split LVTTL port and feedback path. It provides true bidirectional signal-level translation between cards operating at LVTTL logic levels and backplanes operating at GTLP signal levels. The device supports transparent, latched, and flip-flop modes of data transfer. It features high-drive GTLP open-drain outputs capable of 100 mA and LVTTL outputs rated at -24 mA/24 mA. The component operates within a supply voltage range of 3.15 V to 3.45 V and functions across a temperature range of -40°C to +85°C.

Specialty Logic Feature Summary

• Bidirectional interface capability between GTLP signal levels and LVTTL logic levels
• Split LVTTL port providing a dedicated feedback path for control and diagnostics monitoring
• Adjustable edge-rate control (ERC) input to select GTLP rise and fall times for optimal data-transfer rate and signal integrity
• Support for live insertion via Ioff, power-up 3-state, and BIAS VCC circuitry

Specialty Logic Applications

• High-speed interface between cards operating at LVTTL logic levels and backplanes operating at GTLP signal levels
• Distributed load backplane switching applications requiring incident-wave switching capabilities
• Live-insertion hot-swap systems utilizing precharge and isolation features

Specialty Logic Procurement Notes

Verify the specific ordering suffix DGVR corresponds to the TVSOP-48 package and tape-and-reel packaging configuration. Confirm that the required logic family matches the GTLP specifications and that the operating temperature range aligns with system requirements. Ensure compatibility with the recommended termination voltages and reference voltage settings for proper signal integrity.

Specialty Logic Selection Notes

Select this component when a registered transceiver with separate input and output pins is required for diagnostic feedback. Consider the adjustable edge-rate control feature if optimizing signal integrity on heavily loaded backplanes is necessary. Verify that the high-drive output current meets the impedance requirements of the target bus architecture.

Specialty Logic Part Context

This device belongs to the Widebus family from Texas Instruments. It shares functional similarities with the SN74FB2033 but utilizes true GTLP logic rather than FB+ or BTL standards. The SN74GTLP2034 is designed specifically for high-speed backplane applications where reduced output swing and improved differential inputs are critical for maintaining signal quality.

Specialty Logic Replacement Considerations

Public confirmed substitute part numbers: SN74GTLP2034DGGR, SN74GTLP2034GQLR.