Functional Description
The CY2309 is a low-cost 3.3V zero delay buffer designed to distribute high-speed clocks and is available in a 16-pin SOIC or TSSOP package. The CY2305 is an 8-pin version of the CY2309. It accepts one reference input, and drives out five low-skew clocks. The -1H versions of each device operate at up to 100-/133-MHz frequencies, and have higher drive than the -1 devices. All parts have on-chip PLLs which lock to an input clock on the REF pin. The PLL feedback is on-chip and is obtained from the CLKOUT pad.
Features
• 10-MHz to 100-/133-MHz operating range, compatible with CPU and PCI bus frequencies
• Zero input-output propagation delay
• 60 ps typical cycle-to-cycle jitter (high drive)
• Multiple low-skew outputs
— 85 ps typical output-to-output skew
— One input drives five outputs (CY2305)
— One input drives nine outputs, grouped as 4 + 4 + 1 (CY2309)
• Compatible with Pentium-based systems
• Test Mode to bypass phase-locked loop (PLL) (CY2309 only [see “Select Input Decoding” on page 2])
• Available in space-saving 16-pin 150-mil SOIC or 4.4-mm TSSOP packages (CY2309), and 8-pin, 150-mil SOIC package (CY2305)
• 3.3V operation
• Industrial temperature available
Cypress targets innovative markets growing faster than the overall semiconductor industry, including key segments of the automotive, industrial, home automation and appliances, medical products and consumer electronics businesses. With the help of Digi-Key Electronics, we supply customers with market-leading solutions based on our MCUs, wireless SoCs, memories, analog ICs and USB controllers. Our world-class wireless technology gives us an unparalleled position in the fast-growing Internet of Things, a business that cuts across our conventional markets and gives us a stake in exciting, next-generation segments such as connected and autonomous cars.