CY2305SC-1

Product Overview

The CY2305SC-1 from Cypress Semiconductor Corp is a clock fanout buffer and zero-delay buffer for distributing a single clock input to multiple clock outputs. It integrates one circuit with a 1:5 input-to-output ratio and supports a maximum frequency of 133.33MHz. The device uses non-differential clock inputs and outputs, operates from a 3V to 3.6V supply, and is specified for an ambient temperature range of 0°C to 70°C. It is packaged in an 8-SOIC surface-mount package with a 0.154-inch, 3.90mm body width.

Key Features

• Fanout buffer and zero-delay buffer functions in one surface-mount IC.
• Single circuit with a 1:5 input-to-output ratio for clock distribution.
• Clock input and clock output interfaces, with non-differential input and output characteristics.
• Maximum operating frequency of 133.33MHz.
• PLL functionality is included.
• Supply voltage range of 3V to 3.6V.
• Operating temperature range of 0°C to 70°C.
• 8-SOIC package with 0.154-inch, 3.90mm width.

Applications

• Distributing one clock signal to multiple non-differential clock inputs in digital timing paths.
• Buffering a system clock before connection to several downstream timing-sensitive circuits.
• Implementing a one-to-five clock fanout stage on a surface-mount board using a 3V to 3.6V supply.
• Using a zero-delay buffer function where a single clock input must drive multiple outputs without differential signaling.

Design & Procurement Notes

For selection, confirm that the clock network requires a non-differential 1:5 fanout buffer rather than a differential or frequency-dividing device. Check that the board supply remains within 3V to 3.6V and that ambient temperature stays within 0°C to 70°C. The 8-SOIC package requires a surface-mount pad layout with 3.90mm body width. Because the maximum frequency is 133.33MHz, validate that downstream clock domains operate within this limit. PLL functionality should be considered during timing analysis, and no divider or multiplier function is included.