MC100E111FNR2

Clock Buffers, Drivers Overview

The MC100E111FNR2G is a high-speed clock driver and distribution component manufactured by onsemi. It operates as a 1:9 differential fanout buffer designed for ECL logic families, specifically supporting 5V operation. The device accepts a single-ended or differential input and provides nine complementary differential outputs to distribute clock signals across multiple loads. Packaged in a 28-lead PLCC (Plastic Leaded Chip Carrier) with J-leads, it is supplied in tape and reel format for automated surface-mount assembly. This component belongs to the MC100E series, which is characterized by its compatibility with standard ECL power supplies and high-frequency performance capabilities.

Clock Buffers, Drivers Feature Summary

• Provides 1:9 differential fanout buffering for clock signal distribution
• Compatible with 5V ECL logic families
• Supplied in 28-PLCC package with J-leads
• Designed for high-speed digital applications requiring low skew

Clock Buffers, Drivers Applications

• High-speed data communication systems
• Computer backplane clock distribution
• Telecommunications equipment timing networks
• Test and measurement instrumentation

Clock Buffers, Drivers Procurement Notes

Verify the complete part number includes the 'G' suffix (MC100E111FNR2G), which typically indicates RoHS compliance and lead-free status according to onsemi naming conventions. Confirm the specific revision level required for your design, as older non-'G' versions may have different material compositions. Check current availability status, as this component family may be subject to obsolescence notices or limited production runs from the manufacturer.

Clock Buffers, Drivers Selection Notes

Select this component when a 1:9 split ratio is required for ECL-based clock trees. Ensure the system power supply aligns with the 5V ECL standard (-5.2V typical). Verify that the PCB layout supports the 28-PLCC footprint and that reflow soldering profiles are compatible with J-lead packages. Compare propagation delay specifications against system timing budgets if precise synchronization is critical.

Clock Buffers, Drivers Part Context

This part belongs to the MC100E series of ECL components from onsemi. It serves as a buffer/driver within the broader clock generation and distribution portfolio. Similar parts in the series include the MC100E111FN (tube packaging) and other fanout ratios like 1:2 or 1:4 variants. The 'FNR2G' suffix denotes the specific package type (PLCC), tape-and-reel packaging, and environmental compliance.

Clock Buffers, Drivers Replacement Considerations

Direct pin-to-pin replacements may include the MC100E111FN, though packaging differs (tube vs. tape and reel). For updated environmental compliance, verify if the MC100E111FNR2G is the designated successor to older non-'G' versions. Cross-reference with other 1:9 ECL buffers from manufacturers like Texas Instruments or Analog Devices if onsemi supply is constrained, ensuring voltage levels and output drive strengths match.