SN74GTLPH32912KR

Overview

The SN74GTLPH32912KR is a 36-bit LVTTL-to-GTLP universal bus transceiver in a GKF package. It operates at VCC of 3.15V to 3.45V with an operating temperature range of -40°C to +85°C. The device provides medium-drive GTLP outputs (50mA) and LVTTL outputs (-24mA/24mA). Propagation delay from A to B is typically 6ns, while B to A is 5.8ns. Clock frequency reaches 175MHz. ESD protection exceeds 2000V human-body model.

Feature Summary

• Combines D-type latches and flip-flops for transparent, latched, clocked, and clock-enabled data transfer modes
• Supports live insertion via Ioff, power-up 3-state, and BIAS VCC circuitry
• Includes TI-OPC circuitry to limit ringing on unevenly loaded backplanes
• Features active bus-hold on A-port inputs to maintain valid logic states

Applications

• High-speed interface between cards operating at LVTTL levels and backplanes at GTLP levels
• Replacement for various standard UBT functions including buffers, drivers, and registered transceivers
• Distributed load applications requiring incident-wave switching capability

Procurement Notes

Verify the specific ordering suffix KR against the latest Texas Instruments documentation to confirm package type and status. Confirm RoHS compliance and moisture sensitivity level requirements for your assembly process. Check current production status as devices may transition to NRND or obsolete categories over time.

Selection Notes

Select this component when designing systems requiring bidirectional translation between LVTTL and GTLP signal levels. Ensure the design supports the required 3.3V supply voltage and utilizes appropriate termination voltages for GTLP operation. Consider the 36-bit width and control pin availability for complex bus architectures.

Part Context

This device belongs to the SN74GTLPH series, part of the Widebus+ family. It serves as a high-performance solution for bridging different logic families in computer and communication systems. The Universal Bus Transceiver architecture allows flexible configuration for diverse data path requirements.

Replacement Considerations

Public confirmed substitute part numbers: SN74GTLPH32912ZKFR.