CY2305ESXC-1

Product Overview

The CY2305ESXC-1 from Cypress Semiconductor Corp is a surface-mount zero delay buffer IC supplied in an 8-SOIC package with a 3.90 mm body width. It is designed for clock timing paths where a single clock input is buffered and distributed to a 1:9 input-to-output ratio. The device supports a maximum frequency of 133.33 MHz, operates from a 3 V to 3.6 V supply, and is specified for a 0°C to 70°C ambient temperature range. Its non-differential clock input and clock output structure, together with a PLL that includes a bypass option, make it suitable for digital boards that require a single-chip clock buffering solution in a surface-mount package.

Key Features

• Zero delay buffer IC for clock timing applications
• PLL with bypass
• Single circuit with clock input and clock output
• Input-to-output ratio of 1:9
• Non-differential input and non-differential output
• Maximum frequency of 133.33 MHz
• Supply voltage range of 3 V to 3.6 V
• Operating temperature range of 0°C to 70°C ambient (TA)
• Surface-mount 8-SOIC package, 0.154 inch, 3.90 mm width

Applications

• Clock buffering in digital logic boards
• Single-input clock distribution in embedded systems
• Clock timing in 3.3 V digital hardware
• Surface-mount clock distribution circuits

Design & Procurement Notes

When selecting the CY2305ESXC-1, confirm that the system clock tree accepts a non-differential clock input and non-differential clock output, and that the 1:9 input-to-output ratio matches the intended fan-out structure. The 133.33 MHz maximum frequency should be checked against the required operating frequency. Power supply design must remain within the 3 V to 3.6 V range, and the board must operate within the 0°C to 70°C ambient temperature range. The 8-SOIC surface-mount package requires an appropriate footprint, solder paste, and reflow process. The PLL bypass characteristic should be evaluated when the design requires either PLL-enabled timing behavior or a bypassed clock path. No divider or multiplier function is provided, so external clock synthesis may be needed if the input-to-output relationship does not satisfy the system timing architecture.