SY10ELT21LZI-TR

Translators, Level Shifters Overview

The SY10ELT21LZI-TR is a single differential LVPECL-to-LVTTL translator manufactured by Microchip Technology. It operates on a +3.3V power supply and features a typical propagation delay of 2.0ns with a maximum input frequency of 275MHz. The device utilizes an 8-pin SOIC package and supports industrial operating temperatures ranging from -40°C to +85°C. It provides 24mA TTL outputs and includes a VBB reference output for interface flexibility.

Translators, Level Shifters Feature Summary

• Translates differential LVPECL signals to LVTTL levels using a single 3.3V power supply
• Features low skew design suitable for clock or data signal translation
• Includes internal biasing that forces the output low under open input conditions

Translators, Level Shifters Applications

• Clock signal translation in high-speed digital systems
• Data signal level shifting between LVPECL sources and LVTTL receivers
• Applications requiring minimal space, low power consumption, and low cost

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix ZI-TR confirms the industrial temperature range (-40°C to +85°C) and tape-and-reel packaging format. Confirm RoHS compliance status and Pb-Free bar-line indicator details as specified in the manufacturer's ordering information table before finalizing procurement.

Translators, Level Shifters Selection Notes

Select this component when translating LVPECL inputs to LVTTL outputs within a 3.3V system. Ensure the application requires the specific 8-pin SOIC footprint and can accommodate the 24mA TTL output drive capability. Verify compatibility with the required 275MHz maximum input frequency and 2.0ns typical propagation delay specifications.

Translators, Level Shifters Part Context

This part belongs to the Precision Edge SY10/100ELT21L family of voltage level translators. The '10' prefix indicates compatibility with positive ECL 10H logic levels, distinguishing it from the '100' variant which supports 100K logic levels. The device is designed for applications prioritizing low power and small form factors.

Translators, Level Shifters Replacement Considerations

SY100ELT21LZI-TR (compatible with 100K logic levels instead of 10H).

Translators, Level Shifters FAQ

How does the device behave if the differential inputs are left open?

Under open input conditions, the /D input is biased at a VCC/2 voltage level while the D input is pulled to ground, forcing the Q output low to provide added stability.

What is the function of the VBB pin?

The VBB pin serves as a reference output that allows for differential, single-ended, or AC-coupled interfaces to the device.