SY10EL33LZG-TR

Overview

The SY10EL33LZG-TR is a 3.3V ECL ÷4 divider integrated circuit manufactured by Microchip Technology. It operates within a power supply voltage range of 3.0V to 3.8V and supports toggle frequencies up to 4.2 GHz. The device features a typical propagation delay of 640ps from clock input to output and 460ps from reset to output. It utilizes an 8-pin SOIC package with an industrial operating temperature range spanning -40°C to +85°C.

Feature Summary

• Integrated ÷4 divider functionality supporting differential, single-ended, or AC-coupled interfaces via dedicated clock inputs and VBB reference pin.
• Includes asynchronous reset capability asserted on the rising edge to synchronize internal flip-flops upon power-up.
• Equipped with internal 75 kΩ input pull-down resistors for stable signal conditioning.

Applications

• High-speed clock frequency division in digital systems
• Synchronization of multiple divider stages in complex timing architectures
• PECL/NECL interface circuits requiring precise phase alignment

Procurement Notes

Verify that the ordering suffix '-TR' corresponds to the tape and reel packaging configuration containing 1,000 units per reel. Confirm the 'ZG' designation indicates the 8-lead SOIC package variant with lead-free NiPdAu plating and compliance with the specified industrial temperature range. Ensure compatibility with standard 8-pin SOIC land patterns during PCB layout.

Selection Notes

Select this component when a fixed ÷4 division ratio is required for PECL or NECL signals. The device accommodates both 3.3V and 5V logic families through appropriate supply configurations. Designers must account for the specific propagation delay variations across the full industrial temperature range to ensure timing margins are met in high-frequency applications.

Part Context

This part belongs to the SY100EL33L family of 3.3V ECL dividers produced by Microchip Technology. It serves as a specialized timing element within the broader portfolio of high-speed logic ICs designed for precision clock distribution networks. The device replaces legacy Micrel versions under updated Microchip nomenclature standards.

Replacement Considerations

SY100EL33LZG (Tube Packaging)

FAQ

How should the VBB pin be handled if not used as an input bias?

If the VBB pin is not utilized for input biasing, it should be left open. When used, it requires decoupling to ground with a 0.01µF capacitor.

What is the behavior of the internal flip-flops upon power-up?

Upon power-up, the internal flip-flops attain a random state. The asynchronous Reset input allows for synchronization of these states across multiple devices in a system.