SY55851AUKI

Overview

The SY55851AUKI is a SuperLite AnyGate differential logic device manufactured by Microchip Technology, housed in a 10-pin MSOP package. It supports operation up to 3.0 GHz with a supply voltage range of 2.3V to 3.6V. The component features fully differential CML outputs optimized for 50Ω loads and accepts LVPECL or CML input signals. Propagation delay from inputs (A, B) and selector (S) to output is guaranteed at less than 280ps across the -40°C to +85°C temperature range.

Feature Summary

• Configurable as any two-variable Boolean logic function including AND, NAND, OR, NOR, XOR, XNOR, DELAY, and NEGATION
• Capable of functioning as a 2:1 multiplexer with dedicated select input
• Functions as an LVPECL-to-CML translator while accepting both signal types

Applications

• Port bypass circuits
• Data communication systems
• Wireless communication systems
• Telecom systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's Product Identification System documentation. Suffixes such as 'G' indicate lead finish and temperature range, while 'TR' denotes tape and reel packaging. Confirm that the selected variant matches the required operating temperature range and physical package dimensions before finalizing procurement orders.

Selection Notes

Select this component when a single IC must replace multiple discrete logic gates or provide flexible reconfigurable logic functions. Ensure the system design accommodates source-terminated CML outputs requiring external 50Ω termination resistors. Verify that input drivers support LVPECL or CML standards to ensure proper signal interfacing without additional translation circuitry.

Part Context

This part belongs to the Microchip SuperLite family of high-speed differential logic devices. These components are designed for applications requiring fast edge rates and low propagation delays. The SY55851A specifically provides universal logic capabilities within a compact surface-mount package suitable for dense PCB layouts.

Replacement Considerations

Check datasheets for alternative AnyGate devices from the same manufacturer to confirm pinout compatibility and electrical parameter alignment. Verify that substitute parts support the required 3.0 GHz frequency and 50Ω output termination specifications.