Cypress Semiconductor Nine-Output 3.3V Buffer CY2309NZ Manuel

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Features

■

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 V

and V

pins for noise and electromagnetic inter-

ference (EMI) reduction

■

Space-saving 16-pin 150-mil SOIC package

■

3.3V operation

■

Industrial temperature available

Logic Block Diagram

BUF_IN

Cypress Semiconductor Corporation

Document #: 38-07182 Rev. *E

Functional Description

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 V

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.

•

198 Champion Court

Nine-Output 3.3V Buffer

and V

pins for noise optimization and

OUTPUT1

OUTPUT2

OUTPUT3

OUTPUT4

OUTPUT5

OUTPUT6

OUTPUT7

OUTPUT8

OUTPUT9

•

San Jose

CA 95134-1709

Revised September 23, 2008

CY2309NZ

•

408-943-2600

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