SY89321LMI-TR

Translators, Level Shifters Overview

The SY89321LMI-TR is a single-channel, unidirectional differential LVPECL/CML/LVDS-to-LVTTL translator manufactured by Microchip Technology. It operates on a single +3.3V power supply and features an ultra-small 8-pin MLF® (2mm x 2mm) package. The device supports a maximum input frequency of 275MHz with a typical propagation delay of 1.9ns. It includes internal input resistors for stability under open conditions and provides a VBB reference voltage output.

Translators, Level Shifters Feature Summary

• Translates differential LVPECL, CML, or LVDS signals to LVTTL levels using a single 3.3V supply
• Features internal pull-down and pull-up resistors that force the Q output LOW when inputs are left open
• Includes a VBB output pin providing a reference bias voltage for AC-coupled or single-ended interfaces

Translators, Level Shifters Applications

• Translation of clock or data signals in space-constrained designs
• Interfacing differential high-speed logic families to LVTTL systems
• Applications requiring minimal footprint and low power consumption

Translators, Level Shifters Procurement Notes

Verify the ordering suffix 'MI' corresponds to the industrial temperature range (-40°C to +85°C) and Pb-free NiPdAu lead finish as documented in the official datasheet. Confirm the package type is the 8-pin MLF® (2mm x 2mm). Ensure compatibility with the specific input signal standards required for your design.

Translators, Level Shifters Selection Notes

Select this component when a single-gate translator is needed to convert differential inputs to LVTTL outputs within a limited board area. It is suitable for designs prioritizing low skew and flow-through pinouts. Consider the 275MHz maximum frequency limit and the requirement for a stable 3.3V supply bypassed with low ESR capacitors.

Translators, Level Shifters Part Context

The SY89321L belongs to the Precision Edge family from Micrel, now part of Microchip Technology. It is functionally equivalent to the SY100EPT21L but utilizes a significantly smaller 8-pin MLF® package with a 70% reduced footprint. This series targets applications where space, power, and cost efficiency are critical constraints.

Translators, Level Shifters Replacement Considerations

The SY100EPT21L is identified as functionally equivalent in the datasheet, though it lacks the ultra-small package. Verify if the package difference impacts thermal or mechanical requirements for the replacement.