SY100E111AJC-TR

Clock Buffers, Drivers Overview

The SY100E111AJC-TR is a Precision Edge differential clock driver manufactured by Microchip Technology, originally designed by Micrel. It provides one-to-nine fanout for low skew clock distribution in high-performance systems. The device supports both 5V and 3.3V power supplies, operating in PECL mode with VEE grounded. It features a 28-pin PLCC package and includes an internal VBB reference output. Key electrical specifications include a typical part-to-part skew of 200ps and an output-to-output skew of 50ps. The component is marked as not recommended for new designs.

Clock Buffers, Drivers Feature Summary

• 1:9 Differential Clock Driver with low skew design
• Supports 5V (4.2V to 5.5V) and 3.3V (3.0V to 3.8V) supply options
• Typical part-to-part skew of 200ps and output-to-output skew of 50ps
• Includes VBB output for single-ended input compatibility

Clock Buffers, Drivers Applications

• High performance clock distribution across backplanes
• Board-level clock distribution in 5V or 3.3V systems
• Differential signal buffering for ECL/PECL logic families

Clock Buffers, Drivers Procurement Notes

Verify the component status before procurement, as the datasheet explicitly states it is not recommended for new designs. Confirm that the 'JC' suffix corresponds to the commercial temperature range (-40°C to +85°C) and that the 'TR' suffix indicates tape and reel packaging. Ensure sourcing channels provide valid lot traceability given the product's age.

Clock Buffers, Drivers Selection Notes

Select this component only if existing designs require exact pinout and electrical compatibility with legacy Micrel parts. Designers must ensure all unused differential outputs are terminated into 50Ω on the same package side as active outputs to maintain specified skew margins. Verify that the system operates within the specified voltage ranges for either 5V or 3.3V PECL configurations.

Clock Buffers, Drivers Part Context

This part belongs to the SY100E111A/L series, which improves upon the original SY100E111 by offering lower jitter and low voltage operation capabilities. The 'SY100' prefix denotes the specific family variant, while 'AJC' specifies the industrial/commercial grade and package type. The device is functionally compatible with Motorola MC100LVE111 equivalents.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers include MC100LVE111FNG and MC100LVE111FNR2G from onsemi.