SY100EL33LZI

Overview

The SY100EL33LZI is a 3.3V ECL ÷4 divider integrated circuit manufactured by Microchip Technology. It operates on a single 3.3V power supply and features a typical propagation delay of 640ps with a maximum toggle frequency of 4.2 GHz. The device includes internal 75 kΩ input pull-down resistors and provides differential, single-ended, or AC-coupled interface options via its clock inputs and VBB reference voltage output. It is housed in an 8-pin SOIC package.

Feature Summary

• Integrated ÷4 divider functionality for clock signal division
• Supports differential, single-ended, and AC-coupled input interfaces
• Includes asynchronous reset pin for system synchronization

Applications

• Clock distribution networks requiring frequency division
• High-speed digital systems utilizing PECL/NECL logic levels
• Synchronization circuits for multiple divider stages

Procurement Notes

Verify the specific ordering suffix 'ZG' against the manufacturer's current documentation to confirm package type (SOIC) and temperature range (-40°C to +85°C). Ensure compatibility with lead-free specifications if required by your assembly process. Confirm availability through authorized Microchip distributors as part numbers may have alternative packaging options like tape and reel.

Selection Notes

Select this component when a precise ÷4 division ratio is needed within high-frequency applications up to 4.2 GHz. Consider the 3.3V supply requirement and the availability of the VBB reference output for biasing other components. Evaluate the 8-pin SOIC footprint against your PCB layout constraints and ensure thermal management supports the specified operating temperature range.

Part Context

This device belongs to the Precision Edge family of high-speed logic products from Microchip Technology. It is designed for applications demanding fast switching speeds and low jitter characteristics. The integration of internal pull-down resistors simplifies the design process by reducing external component count while maintaining signal integrity at high frequencies.

Replacement Considerations

SY10EL33LZG

FAQ

What is the function of the VBB pin?

The VBB pin provides an output reference voltage that can be used for differential, single-ended, or AC-coupled input interfacing. It should be bypassed to ground with a 0.01µF capacitor if utilized.

How does the Reset pin operate?

The Reset pin is asynchronous and is asserted on the rising edge. It allows for the synchronization of multiple EL33L devices in a system, overriding the random state attained upon power-up.