SY89823LHY

Clock Buffers, Drivers Overview

The SY89823LHY is a high-performance bus clock driver featuring 22 differential HSTL (1.5V) output pairs. It operates with a 3.3V core supply and a 1.8V output supply to reduce power consumption. The device supports both LVPECL and HSTL inputs, selectable via the CLK_SEL pin. Key electrical specifications include a maximum operating frequency of 500MHz, a propagation delay of 0.8ns to 1.3ns, and cycle-to-cycle jitter of 1ps RMS. Skew performance is rated at a maximum of 50ps within the device and 200ps part-to-part.

Clock Buffers, Drivers Feature Summary

• 22 differential HSTL output pairs driving 50Ω loads without offset voltage
• Low skew performance: 50ps max pin-to-pin and 200ps max part-to-part
• Triple-buffered synchronous Output Enable (OE) prevents runt clock pulses
• Dual input support for LVPECL and HSTL signals via CLK_SEL pin

Clock Buffers, Drivers Applications

• High-performance PCs
• Workstations
• Parallel processor-based systems
• High-performance computing applications
• Communications equipment

Clock Buffers, Drivers Procurement Notes

Verify the industrial temperature range (-40°C to +85°C) and Pb-Free Matte-Sn lead finish associated with the 'Y' suffix. Confirm package type is 64-pin EPAD-TQFP. Check current availability status as distribution may vary.

Clock Buffers, Drivers Selection Notes

Select this component when a large number of precisely aligned outputs are required. Ensure the design accommodates separate 3.3V (VCCI) and 1.8V (VCCO) power supplies. Verify that the triple-buffered OE timing requirements meet the system's enable/disable latency constraints.

Clock Buffers, Drivers Part Context

This device belongs to the Precision Edge SY89823L series from Micrel (now Microchip Technology). It is designed for low-voltage applications requiring high fan-out capabilities with ultra-low skew characteristics across multiple output channels.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.