SN74GTL16612DL

Overview

The SN74GTL16612DL is an 18-bit universal bus transceiver manufactured by Texas Instruments in a TSSOP-56 package. It facilitates voltage level translation between LVTTL and GTL/GTL+ standards, supporting bidirectional data transfer with reset functionality. The device operates within a supply voltage range of 3.15 V to 5.25 V and maintains a propagation delay of 6.3 ns. Designed for surface mount installation, it functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Supports bidirectional voltage translation between LVTTL and GTL/GTL+ logic families
• Integrates reset capability for reliable system initialization
• Provides 18-bit universal bus transceiver architecture

Applications

• Interfacing low-voltage TTL systems with GTL/GTL+ memory buses
• High-speed data transmission in computer architectures
• Voltage level conversion in embedded controller networks

Procurement Notes

Verify the specific suffix 'DL' corresponds to the TSSOP-56 package variant when sourcing. Confirm that the component meets RoHS compliance requirements for your assembly process. Ensure the operating environment stays within the specified -40°C to +85°C temperature limits to maintain signal integrity and device reliability during operation.

Selection Notes

Select this component when interfacing 3.3V or 5V LVTTL logic with 1.2V GTL/GTL+ memory interfaces. The 18-bit width reduces board space compared to narrower bit-width alternatives. Verify that the 6.3 ns propagation delay meets the timing constraints of your target bus speed and system clock frequency requirements.

Part Context

This part belongs to the SN74GTL16612 series of voltage translators. It is designed to bridge the gap between standard logic levels and Ground Termination Logic (GTL) standards commonly used in high-performance computing. The device ensures signal compatibility across different voltage domains without requiring external pull-up or pull-down resistors.

Replacement Considerations

Check for SN74GTL16612DGGR as a reel-packaged alternative offering identical electrical characteristics. Verify pinout compatibility before substituting any other 18-bit GTL translator variants.