MC100LVE210FNR2

Clock Buffers, Drivers Overview

The MC100LVE210FNR2 is a low voltage, dual differential ECL fanout buffer designed for clock distribution. It integrates two buffers: a 1:4 and a 1:5 configuration on a single chip. The device supports PECL mode with VCC = 3.0 V to 3.8 V (VEE = 0 V) and NECL mode with VEE = -3.0 V to -3.8 V (VCC = 0 V). Key electrical parameters include a maximum toggle frequency of 700 MHz, typical output-to-output skew of 50 ps, and part-to-part skew of 200 ps. Power supply current is typically 55 mA at 3.3 V. It operates within a temperature range of -40°C to +85°C and is housed in a PLCC-28 package.

Clock Buffers, Drivers Feature Summary

• Dual differential fanout buffers (1:4 and 1:5) minimize system skew by reducing part-to-part skew to output-to-output skew.
• Low skew specifications: 50 ps typical output-to-output skew and 200 ps maximum part-to-part skew.
• Supports both PECL (+3.3 V) and NECL (-3.3 V) operating modes.
• Includes an internally generated VBB reference voltage pin for single-ended input switching or AC coupling rebiasing.

Clock Buffers, Drivers Applications

• High-performance clock distribution across backplanes.
• Board-level low skew clock distribution systems.
• PECL environment clock buffering where series or Thevenin terminations are used.

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix 'R2' indicates tape and reel packaging containing 500 units per reel. Confirm RoHS compliance status; the standard MC100LVE210FN may not be Pb-free, while the FNG/FNR2G suffixes indicate Pb-free packages. Ensure proper termination of unused differential pairs adjacent to active outputs to maintain specified skew performance.

Clock Buffers, Drivers Selection Notes

Select this component when dual independent clock signals require low-skew distribution from a single footprint. The internal VBB pin simplifies interfacing with single-ended inputs compared to devices lacking this feature. Ensure the design can provide the required VCC - 2.0 V termination voltage if parallel termination is chosen for PECL applications.

Clock Buffers, Drivers Part Context

This device belongs to the 100 Series, which features temperature compensation. It is part of the LVE (Low Voltage ECL) family, optimized for 3.3 V operation. The FN suffix denotes the PLCC-28 plastic package (Case 776), while the R2 suffix specifies the tape and reel shipping format.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult Application Note AN1405/D for ECL clock distribution techniques when evaluating alternatives.