SN74GTLPH32916KR

Overview

The SN74GTLPH32916KR is a 34-bit Universal Bus Transceiver (UBT) from the GTLPH family, manufactured by Texas Instruments. It provides LVTTL-to-GTLP and GTLP-to-LVTTL signal-level translation for high-speed backplane interfaces. The device operates at a supply voltage of 3.15 V to 3.45 V with a typical propagation delay of 6 ns. It features buffered clock outputs (CLKOUT/CLKIN), supports transparent, latched, clocked, and clock-enabled modes, and includes Ioff, power-up 3-state, and BIAS VCC support for live insertion.

Feature Summary

• Combines D-type latches and flip-flops for versatile data-path operation in multiple transfer modes
• Includes TI-OPC circuitry to limit overshoot and OEC circuitry to improve signal integrity
• Supports live insertion via Ioff, power-up 3-state, and BIAS VCC precharge capabilities
• Features active bus-hold on A-port inputs to maintain valid logic states

Applications

• High-speed interface between cards operating at LVTTL logic levels and backplanes operating at GTLP signal levels
• Live-insertion applications requiring hot-swap capability without disturbing active data
• Replacement for various standard UBT functions including transceivers, buffers, latches, and registered transceivers

Procurement Notes

Verify the current marketing status as the SN74GTLPH32916KR is listed as NRND (Not Recommended for New Designs). Confirm package availability in the GKF Microstar Junior format and ensure compliance with RoHS standards. Review the latest datasheet revision for any updates to electrical characteristics or ordering information before finalizing procurement plans.

Selection Notes

Select this component when a medium-drive transceiver is required for heavily loaded backplanes with low equivalent load impedance. It is suitable for designs needing flexible data transfer modes such as transparent, latched, or clocked operations. Ensure the system utilizes GTLP signaling with appropriate termination voltages and reference voltages to leverage the device's optimized rise and fall times.

Part Context

This part belongs to the SN74GTLPH series of universal bus transceivers designed for high-performance computing systems. It is part of the Widebus+ family, offering extensive bit-width options and integrated control features. The device replaces multiple discrete logic functions, simplifying board layout and reducing component count in complex digital interconnect architectures.

Replacement Considerations

The datasheet indicates that the SN74GTLPH32916 can replace functions of devices such as '245, '645, '863, '16245, '16623, '16863, '241, '244, '541, '827, '16241, '16244, '16541, '16825, '543, '16543, '16472, '373, '573, '843, '16373, '16843, '646, '652, '16646, '16652, '16474, '374, '574, '821, '16374, '16500, '16501, '16835, '2952, '16470, '16952, '377, '823, '16823, '16600, and '16601.