SN74GTLPH1616DGGR

Overview

The SN74GTLPH1616DGGR is a 17-bit Universal Bus Transceiver (UBT) manufactured by Texas Instruments. It provides bidirectional signal-level translation between LVTTL logic levels and GTLP signal levels. The device operates with a supply voltage of 3.3 V and supports data transfer rates up to 175 MHz. It features adjustable edge-rate control for optimizing signal integrity in distributed loads. The component is housed in a 64-pin TSSOP package.

Feature Summary

• Combines D-type latches and flip-flops for transparent, latched, clocked, or clock-enabled operation
• Provides buffered clock outputs at GTLP levels and converts GTLP clocks to LVTTL levels
• Includes TI-OPC circuitry to limit ringing on unevenly loaded backplanes
• Supports live insertion via Ioff, power-up 3-state, and BIAS VCC circuitry

Applications

• High-speed interface between cards operating at LVTTL logic levels and backplanes operating at GTLP signal levels
• Universal bus transceiver applications requiring mixed voltage level translation
• Distributed load backplane systems utilizing adjustable edge-rate control

Procurement Notes

Verify the specific ordering suffix DGGR corresponds to the tape and reel packaging configuration. Confirm that the required operating temperature range aligns with the specified -40°C to +85°C limits. Ensure the design accommodates the recommended supply voltage of 3.3 V and termination voltages for either GTL or GTLP standards as defined in the datasheet specifications.

Selection Notes

Select this component when a 17-bit wide bus interface is required between LVTTL and GTLP domains. The device is suitable for designs needing flexible data-path modes including transparent, latched, and clocked operations. Consider the high-drive capability and adjustable edge-rate control if the application involves heavily loaded backplanes or requires optimization of signal integrity and electromagnetic interference.

Part Context

This part belongs to the Widebus family of universal bus transceivers from Texas Instruments. It integrates functions typically found in separate buffer, driver, latch, and registered transceiver components into a single high-density package. The device replaces various standard logic functions such as '245, '645, '373, and '646 types within a 17-bit architecture.

Replacement Considerations

Public confirmed substitute part numbers: SN74GTLPH1616DL.