CY26580KOI-2

Product Overview

The Cypress Semiconductor Corp CY26580KOI-2 is a PacketClock™ integrated circuit configured as a clock generator, fanout distribution, and multiplexer. It accepts a CMOS input and provides a clock output, with one circuit and a 1:2 input-to-output ratio. The device supports a maximum frequency of 133.33MHz and includes a PLL with bypass. It operates from a 3.14V to 3.47V supply over a -40°C to 85°C temperature range, using a surface-mount 20-QSOP package.

Key Features

• Clock generator, fanout distribution, and multiplexer functions in a single integrated circuit
• CMOS input with clock output and a 1:2 input-to-output ratio
• Maximum frequency of 133.33MHz
• PLL with bypass capability
• Supply voltage range of 3.14V to 3.47V
• Operating temperature range of -40°C to 85°C
• Surface-mount 20-QSOP package

Applications

• Distributing a CMOS clock signal to multiple downstream clock domains in a single-board design
• Providing multiplexed clock selection between input and generated clock paths
• Generating a 133.33MHz clock signal for timing-sensitive digital circuits
• Using the PLL with bypass to maintain or switch between clocking architectures

Design & Procurement Notes

When selecting the CY26580KOI-2, verify that the system clock source is CMOS and that the required output timing can be met within the 1:2 ratio and 133.33MHz maximum frequency. The 3.14V to 3.47V supply range should be checked against the board power rail, and the -40°C to 85°C operating range should be evaluated for the intended ambient conditions. Layout should account for the surface-mount 20-QSOP package and provide clean routing for the input and clock output paths to preserve signal integrity.