Cypress CY2309NZ manual Features, Functional Description, Logic Block Diagram

CY2309NZ

Nine-Output 3.3V Buffer

Features Functional Description

■One-input to nine-output buffer/driver

■Supports two DIMMs or four SO-DIMMs with one additional output for feedback to an external or chipset PLL

■Low power consumption for mobile applications

❐ Less than 32 mA at 66.6 MHz with unloaded outputs

■1-ns Input-Output delay

■Buffers all frequencies from DC to 133.33 MHz

■Output-output skew less than 250 ps

■Multiple VDD and VSS pins for noise and electromagnetic inter- ference (EMI) reduction

■Space-saving 16-pin 150-mil SOIC package

■3.3V operation

■Industrial temperature available

The CY2309NZ is a low-cost buffer designed to distribute high-speed clocks in mobile PC systems and desktop PC systems with SDRAM support. The part has nine outputs, eight of which can be used to drive two DIMMs or four SO-DIMMs, and the remaining can be used for external feedback to a PLL. The device operates at 3.3V and outputs can run up to 133.33 MHz.

The CY2309NZ is designed for low EMI and power optimization. It has multiple VSS and VDD pins for noise optimization and consumes less than 32 mA at 66.6 MHz, making it ideal for the low-power requirements of mobile systems. It is available in an ultra-compact 150-mil 16-pin SOIC package.

Logic Block Diagram

BUF_IN

OUTPUT1

OUTPUT2

OUTPUT3

OUTPUT4

OUTPUT5

OUTPUT6

OUTPUT7

OUTPUT8

OUTPUT9

Cypress Semiconductor Corporation • 198 Champion Court	•	San Jose, CA 95134-1709	•	408-943-2600
Document #: 38-07182 Rev. *E		Revised September 23, 2008

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