SY89328LMI-TR

Translators, Level Shifters Overview

The SY89328LMI-TR is a differential LVPECL-to-LVTTL and LVTTL-to-differential LVPECL translator manufactured by Microchip Technology. It operates on a single +3.3V ±10% power supply within an industrial temperature range of –40 °C to +85°C. The device features guaranteed AC parameters, including a maximum frequency greater than 275MHz for LVTTL and less than 2ns propagation delay from LVPECL to LVTTL. It is housed in an ultra-small 8-pin MLF™ (2mm × 2mm) package with an exposed pad for thermal management.

Translators, Level Shifters Feature Summary

• Dual-directional translation between differential LVPECL and single-ended LVTTL signals within a single integrated circuit.
• Ultra-small 8-lead MLF™ package design providing a significantly reduced footprint compared to traditional packages.
• Internal 75kΩ pull-up and pull-down resistors integrated on the LVPECL input pins.

Translators, Level Shifters Applications

• Backplane signal transmission and reception applications
• LVPECL to LVTTL level shifting circuits
• LVTTL to differential LVPECL translation systems

Translators, Level Shifters Procurement Notes

Verify that the ordering suffix corresponds to the specific lead finish required, as the datasheet distinguishes between Sn-Pb and Pb-Free variants. Confirm the package type matches the specified MLF-8 configuration. Ensure the operating environment remains within the stated industrial temperature limits to maintain guaranteed AC parameter performance.

Translators, Level Shifters Selection Notes

Select this component when space-constrained designs require bidirectional translation between LVPECL and LVTTL domains. The device eliminates the need for separate unidirectional translators, reducing board complexity. Verify that the system power supply adheres to the 3.0V to 3.6V operating range and that the load conditions match the specified termination requirements for optimal signal integrity.

Translators, Level Shifters Part Context

This part belongs to Micrel's Precision Edge family of high-speed logic devices, now under Microchip Technology. The SY89328L serves as a functional equivalent to the SY100EPT28L but utilizes a compact MLF package. It addresses the demand for smaller form factors in high-speed digital communication interfaces requiring voltage level conversion.

Translators, Level Shifters Replacement Considerations

The SY100EPT28L is identified as functionally equivalent but differs in package style. Direct pin-compatible replacements are not explicitly listed in the provided documentation; verify mechanical fit and electrical specifications against alternative translators if sourcing from different manufacturers.

Translators, Level Shifters FAQ

What is the maximum operating frequency for the LVTTL interface?

The maximum frequency for the LVTTL interface is guaranteed to be greater than 275MHz.

How should the exposed pad on the MLF-8 package be handled?

The exposed pad must be soldered to a ground plane on the PCB to ensure proper thermal management and device reliability.