CY2309NZ
Nine-Output 3.3V Buffer
Cypress Semiconductor Corporation
•
198 Champion Court
•
San Jose
, CA 95134-1709
•
408-943-2600
Document #: 38-07182 Rev. *E
Revised September 23, 2008
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 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
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 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
OUTPUT2
OUTPUT3
OUTPUT4
OUTPUT5
OUTPUT6
OUTPUT7
OUTPUT8
OUTPUT9
OUTPUT1
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