8T33FS6111NLGI

Clock Buffers, Drivers Overview

The 8T33FS6111 is a bipolar monolithic differential clock fanout buffer utilizing SiGe:C technology. It provides a 1:10 distribution ratio, accepting LVPECL or HSTL inputs and generating ten identical LVPECL outputs. The device supports clock frequencies up to 2.7 GHz with a typical output skew of 28 ps and part-to-part skew of 250 ps. It operates from a single 2.5V or 3.3V supply. Key electrical parameters include a propagation delay of 200–530 ps and an additive RMS phase jitter of 74 fs (typical) at 156.25 MHz. The component is housed in a 32-lead VFQFN package with an exposed pad.

Clock Buffers, Drivers Feature Summary

• 1:10 differential clock distribution with fully differential architecture
• Supports input frequencies up to 2.7 GHz using LVPECL or HSTL signals
• Low output skew of 28 ps typical and 50 ps maximum
• Operates on a single 2.5V or 3.3V power supply

Clock Buffers, Drivers Applications

• High-performance clock distribution in computing systems
• Clock distribution in networking infrastructure
• Telecommunication system timing applications

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix for the required package type, as the device is available in 32-VFQFN, LQFP, and TQFP variants. Confirm that the selected variant matches the thermal and mechanical requirements of the target PCB design. Ensure compatibility with the intended supply voltage (2.5V or 3.3V) during procurement planning.

Clock Buffers, Drivers Selection Notes

Select this component when low skew and high-frequency operation are critical. The device requires proper termination of all unused output pairs on the same side as active outputs to maintain specified skew characteristics. Designers must account for the exposed pad thermal release path in the PCB layout to manage junction temperature effectively under full load conditions.

Clock Buffers, Drivers Part Context

Originally manufactured by Integrated Device Technology (IDT), this component is now part of the Renesas Electronics portfolio following IDT's acquisition. The 8T33FS6111 belongs to the family of low-voltage differential fanout buffers designed for demanding signal integrity applications requiring precise clock alignment across multiple loads.

Clock Buffers, Drivers Replacement Considerations

Direct pin-compatible replacements within the same series include the 8T33FS6110 and 8T33FS6112. Verify that any substitute maintains the 2.7 GHz frequency capability and LVPECL/HSTL input/output compatibility.