SY10EL15ZC

Clock Buffers, Drivers Overview

The SY10EL15ZC is a low skew 1:4 clock distribution chip from the Precision Edge series, manufactured by Micrel (now Microchip Technology). It operates on a single negative supply voltage ranging from -4.75V to -5.5V. The device features a multiplexed clock input allowing selection between differential/PECL inputs and a synchronous serial clock (SCLK), alongside a synchronous enable function that prevents runt pulses. Key electrical specifications include a typical propagation delay of 470ps from CLK to output and an internal output-to-output skew of 50ps maximum. It is housed in a 16-pin narrow SOIC package.

Clock Buffers, Drivers Feature Summary

• Low skew 1:4 clock distribution with 50ps max within-device skew
• Multiplexed clock input supporting differential ECL, PECL, or SCLK
• Synchronous enable/disable control to prevent runt clock pulses
• Internal 75KΩ input pull-down resistors for single-ended input compatibility

Clock Buffers, Drivers Applications

• Low skew clock distribution networks
• System synchronization requiring precise timing alignment
• Multiplexing high-speed system clocks with lower speed scan or test clocks

Clock Buffers, Drivers Procurement Notes

Verify component authenticity through authorized channels as the original manufacturer Micrel was acquired by Microchip Technology. Confirm RoHS compliance status, noting that standard ZC suffixes are Sn-Pb while ZG suffixes are Pb-Free. Check current lifecycle status as this datasheet indicates older manufacturing origins.

Clock Buffers, Drivers Selection Notes

Select the SY10EL15ZC when a 1:4 fanout with minimal skew is required for ECL/PECL logic families. Ensure the design supports a negative VEE supply between -4.75V and -5.5V. Consider the ZG variant if lead-free soldering processes are mandated, as the standard ZC uses Sn-Pb finish.

Clock Buffers, Drivers Part Context

This component belongs to the SY10/100EL15 family of Precision Edge clock distributors. The '10' prefix denotes the commercial temperature range (-40°C to +85°C) and specific voltage limits, distinguishing it from the '100' series which may have different parametric tolerances or voltage ranges.

Clock Buffers, Drivers Replacement Considerations

Direct pin-compatible replacements within the same family include SY100EL15ZC for potentially tighter specifications. For lead-free requirements, the SY10EL15ZG serves as the environmentally compliant alternative.