CY25818SCT

Product Overview

The Cypress Semiconductor Corp CY25818SCT is a spread spectrum clock generator in an 8-SOIC surface-mount package. It integrates a phase-locked loop and accepts clock or crystal input while producing a single-ended clock output. The maximum operating frequency is 16 MHz, with a 1:1 input-to-output ratio and divider/multiplier functionality. The device operates from a 2.97 V to 3.63 V supply and is specified for ambient temperatures from 0 °C to 70 °C. Its single-circuit architecture is suited to compact clock-generation tasks in digital systems.

Key Features

• Spread spectrum clock generator with integrated PLL.
• Accepts clock or crystal input and delivers a single-ended clock output.
• Supports frequencies up to 16 MHz with a 1:1 input-to-output ratio.
• Includes divider and multiplier functionality in a single circuit.
• Operates from a 2.97 V to 3.63 V supply.
• Surface-mount 8-SOIC (0.154", 3.90 mm width) package.
• Rated for ambient operating temperatures from 0 °C to 70 °C.

Applications

• Generating a 16 MHz clock reference for digital logic boards.
• Applying spread-spectrum clocking in embedded systems where clock spectral reduction is a design concern.
• Converting a crystal or external clock input into a single-ended timing output for on-board circuits.
• Supporting compact timing subsystems that require a surface-mount, single-circuit clock generator.

Design & Procurement Notes

Designers should verify that the board supply remains within 2.97 V to 3.63 V and that the ambient environment stays within 0 °C to 70 °C. The CY25818SCT uses a surface-mount 8-SOIC package, so pad geometry and assembly constraints should match the board process. Because the input accepts clock or crystal sources and the output is single-ended, interface levels and termination should be checked against the connected logic. The 1:1 ratio, divider/multiplier capability, and 16 MHz maximum frequency should be evaluated against the required timing plan. Differential input and output are not available, so systems requiring differential clocking need a different architecture.