SY100E310LJY

Clock Buffers, Drivers Overview

The SY100E310LJY is a 3.3V precision 2:8 ECL/PECL fanout buffer manufactured by Microchip Technology (originally Micrel). It features fully differential clock paths to minimize device and system skew, achieving within-device skew of less than 50ps. The component includes a 2:1 multiplexer input for redundant switchover applications and internal 75kΩ pull-down resistors. It operates on a +3.3V ±10% supply with a maximum operating frequency exceeding 800MHz. The device is housed in a 28-pin PLCC package and supports an industrial temperature range from -40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• 2:8 Differential Fanout Buffer with < 50ps within-device skew
• Integrated 2:1 Multiplexer Input for Redundant Switchover
• Internal 75kΩ Pull-Down Resistors
• Guaranteed AC Performance > 800MHz f MAX

Clock Buffers, Drivers Applications

• Communications clock distribution
• Redundant clock switchover
• High-end server clock distribution

Clock Buffers, Drivers Procurement Notes

Verify the manufacturer origin as the datasheet identifies Micrel, Inc., which was acquired by Microchip Technology. Confirm that the JY suffix denotes the Pb-Free variant with Matte-Sn finish and tube packaging. Ensure compatibility with existing 28-pin PLCC footprints during procurement planning.

Clock Buffers, Drivers Selection Notes

Select this component for designs requiring low-skew clock distribution at frequencies above 800MHz. It serves as a pin-for-pin replacement for the MC100LVE310. Ensure power supplies are strictly maintained between +3.0V and +3.6V. Verify that the PCB layout accommodates the 28-pin PLCC package dimensions.

Clock Buffers, Drivers Part Context

This part belongs to the SY100E series of high-speed logic components. It is functionally equivalent to the MC100LVE310. The 'JY' suffix indicates a Pb-Free package with a Matte-Sn lead finish, while 'TR' would indicate tape and reel packaging.

Clock Buffers, Drivers Replacement Considerations

The SY100E310LJY is a direct pin-for-pin, plug-in replacement for the MC100LVE310. Designers replacing legacy parts should verify that the new component's Pb-free soldering requirements align with the assembly process.

Clock Buffers, Drivers FAQ

What is the maximum operating frequency?

The typical maximum operating frequency (f MAX) is greater than 800MHz.

How does the device handle redundant clock inputs?

It includes a 2:1 multiplexer input allowing selection between two differential clock sources via the CLK_SEL pin.

Is the device compatible with LVPECL and LVECL?

Yes, it is optimized for low voltage operation including +3.3V LVPECL and -3.3V LVECL.