MC10E211FNR2

Clock Buffers, Drivers Overview

The MC10E211FNR2 is a 5V/EnECL 1:6 differential clock distribution chip manufactured by onsemi. It features a multiplexed clock input allowing selection between a high-speed system clock (CLK) and a lower-speed scan/test clock (SCLK). The device provides synchronous enabling/disabling via common (CEN) and individual (ENx) controls to prevent runt pulses. It operates in PECL mode (VCC = 4.2 V to 5.7 V, VEE = 0 V) or NECL mode (VCC = 0 V, VEE = −4.2 V to −5.7 V). Key electrical parameters include a maximum toggle frequency of 700 MHz, typical propagation delay of 930 ps from CLK to Q, and guaranteed part-to-part skew of 50 ps.

Clock Buffers, Drivers Feature Summary

• Multiplexed clock inputs for distributing system and scan/test clocks
• Synchronous enable/disable control with common and individual pins
• Guaranteed low skew specification (50 ps part-to-part)
• Internal 75 kΩ input pulldown resistors and VBB reference output

Clock Buffers, Drivers Applications

• Low skew clock distribution trees
• System diagnostics and self-test procedures using scan clocks
• Fault-tolerant designs requiring individual card disabling

Clock Buffers, Drivers Procurement Notes

Verify the package suffix 'FN' corresponds to the PLCC-28 plastic leaded chip carrier. Confirm whether the 'G' suffix is required for Pb-free compliance, as standard versions may contain lead. Ensure the order quantity matches the specified tape and reel count of 500 units per reel for the FNR2 variant.

Clock Buffers, Drivers Selection Notes

Select this component when low skew and high bandwidth are critical for clock distribution. Use the MC10E211 for first-level distribution or combined with E111 devices for deeper fanout. Ensure power supply decoupling meets the requirement of 0.01 µF capacitors for VBB if utilized. Verify that the application supports the PLCC-28 footprint and thermal requirements.

Clock Buffers, Drivers Part Context

The MC10E211 belongs to the ECLinPS family, designed for high-speed digital systems. It complements other devices like the E111 by offering multiplexing capabilities. The 100 Series variant (MC100E211) includes temperature compensation, whereas the 10E series does not explicitly list this feature in the provided text, though both share similar pinouts and functions.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the source material. Designers should verify compatibility with existing ECLinPS components such as the MC10E111 for bulk fanout generation.