CY2305ESXI-1

Product Overview

The CY2305ESXI-1 from Cypress Semiconductor Corp is a zero delay buffer integrated circuit for clock distribution in surface-mount assemblies. It contains one circuit with a clock input and clock outputs, and the PLL can be bypassed. The device supports a maximum frequency of 133.33 MHz and an input-to-output ratio of 1:9, with non-differential input and output interfaces. It operates from a 3 V to 3.6 V supply and is specified for an ambient temperature range of -40°C to 85°C. The package is an 8-SOIC, 0.154 in, 3.90 mm width, for surface-mount placement.

Key Features

• Zero delay buffer architecture with a bypassable PLL
• Clock input and clock output configuration with a 1:9 input-to-output ratio
• Maximum frequency of 133.33 MHz
• Non-differential input and output interfaces
• 3 V to 3.6 V supply voltage range
• Surface-mount 8-SOIC package, 0.154 in, 3.90 mm width
• Operating ambient temperature range of -40°C to 85°C

Applications

• Clock distribution in logic-based embedded systems
• Timing signal replication for microprocessor and peripheral boards
• Reference clock fanout in test and measurement equipment
• System clock buffering in control modules
• Clock distribution in single-board computers and carrier cards

Design & Procurement Notes

Designers should confirm that the 3 V to 3.6 V supply rail is available and that the clock source can drive the non-differential input at the required frequency. The 1:9 ratio and 133.33 MHz maximum frequency are central to timing budget calculations, while the bypassable PLL allows either PLL-enabled or PLL-bypassed operation. The non-differential interface requires attention to trace impedance, termination, and skew control when distributing the clock to downstream loads. The -40°C to 85°C ambient range should be checked against board thermal conditions, and surface-mount assembly profiles should be compatible with the 0.154 in, 3.90 mm wide 8-SOIC package.