SY100EL15ZG-TR

Clock Buffers, Drivers Overview

The SY100EL15ZG-TR is a low skew 1:4 clock distribution chip from the Precision Edge series, manufactured by Microchip Technology (originally Micrel). It operates within a VEE range of -4.2V to -5.5V and supports an operating temperature range of -40°C to +85°C. The device features a multiplexed clock input allowing selection between differential ECL/PECL inputs and a synchronous single-ended clock input. Key electrical parameters include a typical propagation delay of 470ps from CLK to Q, output-to-output skew of 50ps maximum, and a power supply current of 25mA typical at 25°C.

Clock Buffers, Drivers Feature Summary

• Multiplexed clock input for distributing lower speed scan/test clocks alongside high-speed system clocks
• Synchronous enable/disable control to prevent runt clock pulses during state transitions
• Low skew performance with 50ps maximum output-to-output skew
• Internal 75KΩ pull-down resistors on the SEL pin

Clock Buffers, Drivers Applications

• Low skew clock distribution in high-speed digital systems
• Distributing test or scan clocks in conjunction with primary system clocks
• ECL/PECL logic interface circuits requiring precise timing alignment

Clock Buffers, Drivers Procurement Notes

Verify that the ordering suffix ZG corresponds to the industrial temperature grade (-40°C to +85°C) and Pb-Free NiPdAu finish as specified in the datasheet. Confirm package type is 16-pin SOIC (Z16-2). Ensure compatibility with existing design specifications regarding the VBB reference pin current limitations and synchronous enable requirements.

Clock Buffers, Drivers Selection Notes

Select this component when low skew clock distribution is required for ECL or PECL signals. The SY100EL15 differs from the SY10EL15 primarily in its wider VEE operating range (-4.2V to -5.5V vs -4.75V to -5.5V). Use the multiplexed input feature if system architecture requires switching between a main clock and a slower test clock using the SEL pin.

Clock Buffers, Drivers Part Context

The SY100EL15 belongs to the Precision Edge family of clock drivers. The '100' prefix typically denotes the extended voltage range variant compared to the '10' series. The 'ZG' suffix indicates the industrial temperature range and lead-free packaging with NiPdAu finish. The '-TR' suffix specifies tape and reel packaging for automated assembly.

Clock Buffers, Drivers Replacement Considerations

The SY10EL15ZG-TR is a compatible alternative with identical functionality but a narrower VEE operating range (-4.75V to -5.5V). Verify that the system power supply remains within the stricter limits of the SY10EL15 if substituting.