SY55858UHG

Signal Switches, Multiplexers, Decoders Overview

The SY55858UHG 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 less than 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 voltage between 2.3V and 3.6V, it functions reliably across an industrial temperature range of –40°C to +85°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Non-blocking dual 2x2 crosspoint switch architecture
• Configurable as mux, fanout buffer, or quad buffer
• Internal termination network accessible via VT pins
• TTL/CMOS compatible control logic

Signal Switches, Multiplexers, Decoders Applications

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

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix HG indicates a Pb-Free package with NiPdAu lead finish and a Pb-Free bar-line indicator. Confirm the H32-1 package type matches the design requirements. Ensure compatibility with the specified operating temperature range and supply voltage limits during integration.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component for applications requiring flexible signal routing between CML or PECL sources. The internal termination simplifies interface design for both AC and DC coupled signals. Consider the SY55854 if only a single-channel 2x2 crosspoint is required instead of the dual configuration provided here.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SuperLite family of high-speed analog and digital crosspoint ICs. It is designed for communication and networking applications where signal integrity and low jitter are critical. The device integrates multiple switching functions into a single compact package to reduce board space.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Public confirmed substitute part numbers: None.