SY10EL33ZI

Overview

The SY10EL33ZI 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 670ps from reset to output at +85°C. It includes internal 75 kΩ input pull-down resistors and provides differential, single-ended, or AC-coupled interface options via the VBB reference voltage pin. The component is housed in an 8-Pin SOIC package.

Feature Summary

• Integrated ÷4 divider functionality with asynchronous reset capability for system synchronization
• Supports differential, single-ended, and AC-coupled clock inputs through dedicated pins
• Includes internal 75 kΩ input pull-down resistors to simplify biasing requirements
• Provides an internally generated reference voltage (VBB) for input bias applications

Applications

• High-speed clock signal division in digital communication systems
• Frequency synthesis circuits requiring precise frequency reduction
• Timing distribution networks utilizing PECL or NECL logic standards

Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature rating. Confirm whether the procurement request specifies tube or tape-and-reel packaging, as these are distinct variants. Ensure the component meets the industrial operating temperature range of -40°C to +85°C. Cross-reference the part number against the official datasheet revision history to confirm current availability status.

Selection Notes

Select this component when a high-frequency divide-by-4 function is required for 3.3V ECL applications. Consider the 4.2 GHz toggle frequency limit and propagation delay characteristics relative to system timing constraints. Evaluate the need for the asynchronous reset feature if multiple dividers must be synchronized upon power-up. Verify compatibility with existing PECL or NECL signaling levels used in the design.

Part Context

This device belongs to the Precision Edge family of high-speed logic components produced by Microchip Technology. It serves as a successor to earlier Micrel designs, specifically replacing legacy versions like the SY10EL33. The product line focuses on providing robust performance for demanding clock management tasks in telecommunications and data processing environments.

Replacement Considerations

The SY100EL33LZG is a confirmed equivalent part number offering identical electrical specifications and functionality. Both devices utilize the same 8-Pin SOIC package and support the same 3.3V power supply requirements. Designers should verify that any replacement maintains the necessary lead-free and Pb-free JEDEC compliance for environmental regulations.