SY55858UHI

Signal Switches, Multiplexers, Decoders Overview

The SY55858UHI is a low-voltage, high-speed dual 2 x 2 crosspoint switch manufactured by Microchip Technology. It features a non-blocking architecture allowing any input to connect to any output. The device supports data rates up to 3.0 Gbps with rise/fall times under 120ps and within-device skew below 25ps. It accepts CML or PECL inputs via configurable VT pins for DC or AC coupling, providing fully differential 50Ω compatible CML outputs. Operating on a single supply of 2.3V to 3.6V, it functions within an industrial temperature range of –40°C to +85°C in a 32-pin EPAD-TQFP package.

Signal Switches, Multiplexers, Decoders Feature Summary

• Configurable as dual 2:1 mux, dual 1:2 fanout buffer, 1:4 fanout buffer, quad buffer, or dual 2 x 2 switch
• Unique internal termination design accessible through VT pins for flexible signal interfacing
• TTL/CMOS compatible control logic for straightforward integration

Signal Switches, Multiplexers, Decoders Applications

• SONET/SDH optical transport
• Backplane redundancy
• Add-drop Multiplexers

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix 'HI' corresponds to the H32-1 Industrial package with Sn-Pb lead finish. Confirm that the component is sourced from authorized channels to ensure authenticity. Check for moisture sensitivity requirements during storage and handling. Validate that the voltage supply range matches the system design constraints before finalizing procurement.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a flexible, non-blocking switching solution is required for high-speed serial signals. It is suitable for designs needing reconfigurable routing between multiple data streams. Consider the internal termination feature if minimizing external components for input matching is a priority. Ensure the operating environment falls within the specified industrial temperature limits.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SuperLite family of high-speed interface devices. It serves as a versatile interconnect solution for networking and telecommunications equipment. The device bridges different logic standards using its adaptable input stage. It is designed to support fault-tolerant systems requiring rapid signal path reconfiguration.

Signal Switches, Multiplexers, Decoders Replacement Considerations

For single-channel applications, consider the SY55854. Verify pin compatibility and electrical characteristics when substituting other crosspoint switches. Ensure the replacement supports the required data rate and input/output logic standards.