SY100EPT21LZC-TR

Translators, Level Shifters Overview

The SY100EPT21LZC-TR is a single differential LVPECL-to-LVTTL translator manufactured by Microchip Technology. It operates on a single +3.3V power supply and features a typical propagation delay of 1.9ns with a maximum input frequency of 275MHz. The device provides 24mA LVTTL output current and includes a VBB reference voltage output. It is housed in an 8-pin SOIC package (Z8-1) and supports commercial temperature ranges.

Translators, Level Shifters Feature Summary

• Converts differential LVPECL signals to general-purpose LVTTL levels using a single 3.3V supply
• Provides high-speed translation with low skew for clock or data signal applications
• Includes a VBB output pin that allows flexible differential, single-ended, or AC-coupled interface configurations
• Features fail-safe design where the Q output defaults LOW under open input conditions

Translators, Level Shifters Applications

• ASIC/FPGA interface connections
• Legacy system interface bridging
• Precision differential-to-single-ended translation

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix 'ZC' corresponds to the commercial temperature range and Sn-Pb lead finish as documented in the official Micrel/Microchip ordering information table. Ensure compatibility with existing PCB footprints for the 8-pin SOIC package. Confirm that the component meets all required environmental standards for the intended deployment environment before finalizing procurement orders.

Translators, Level Shifters Selection Notes

Select this component when a compact solution is needed to translate between LVPECL sources and LVTTL destinations within space-constrained designs. It serves as a direct pin-for-pin replacement for legacy MC100EPT21 devices. Consider this part for applications requiring minimal power consumption and low cost while maintaining precise timing characteristics for high-frequency signal processing.

Translators, Level Shifters Part Context

This device belongs to the ECL Pro family of logic components designed for high-speed digital systems. It bridges the gap between low-voltage positive emitter-coupled logic standards and standard TTL-compatible inputs. The product line emphasizes small footprint solutions and flow-through pinouts to facilitate easy integration into modern electronic architectures without significant redesign efforts.

Translators, Level Shifters Replacement Considerations

The SY100EPT21LZC-TR is a pin-for-pin plug-in replacement for the MC100EPT21D/DT series. Designers replacing older components should verify that the new device's commercial temperature range aligns with the original system requirements.

Translators, Level Shifters FAQ

What happens to the output if the LVPECL inputs are left open?

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

How should the VBB output be handled if used?

If the VBB output is utilized for biasing, it should be bypassed to VCC with a 0.01 µF capacitor to ensure stable operation.