SY89876LMI

Overview

The SY89876LMI is a Precision Edge® clock buffer and divider manufactured by Microchip Technology (originally Micrel). It integrates a programmable clock divider with a 1:2 fanout buffer in a 16-pin MLF package. The device supports differential inputs including CML, PECL, LVDS, and HSTL, providing LVDS-compatible outputs. It operates on a single 3.3V supply within an industrial temperature range of -40°C to +85°C. Key performance metrics include a maximum frequency greater than 2.0 GHz, less than 15 ps internal skew, and low jitter characteristics.

Feature Summary

• Integrated programmable divider ratios of 1, 2, 4, 8, and 16 with a 1:2 fanout buffer
• Flexible input termination via VT pin supporting DC/AC-coupled CML, PECL, LVDS, and HSTL
• Low jitter design with <10ps peak-to-peak total jitter and <1ps RMS cycle-to-cycle jitter
• LVDS-compatible outputs with typical 350mV swing

Applications

• SONET/SDH line cards
• Transponders
• High-end multiprocessor servers

Procurement Notes

Verify the manufacturer origin, as the datasheet identifies Micrel, Inc., which was acquired by Microchip Technology. Confirm the specific ordering suffix 'MI' corresponds to the MLF-16 package with Sn-Pb lead finish for the standard version, or 'MG' for Pb-Free NiPdAu finish. Ensure the component meets RoHS requirements if Pb-free variants are necessary for the assembly process.

Selection Notes

Select this component when a 3.3V logic interface is required with flexible input standards. The internal 50Ω termination and VT pin simplify interfacing to various logic families without external resistors. Ensure the application requires LVDS outputs and benefits from the integrated division ratios up to 16x. Verify that the 16-pin MLF package footprint fits the PCB layout constraints.

Part Context

The SY89876L belongs to the Precision Edge® family of high-speed clocking devices. This series focuses on low-skew and low-jitter performance for demanding data communication applications. The device serves as a bridge between high-speed differential sources and lower-speed LVDS loads, combining buffering and frequency division in a single compact package.

Replacement Considerations

The SY89873L is a related product in the same family offering similar functionality. Verify compatibility regarding package type and electrical specifications before substitution. No other direct cross-model substitutes are explicitly confirmed in the provided documentation.