CY2314ANZ_08 Datasheet, PDF (1/8 Pages) Cypress Semiconductor – 14 Output, 3.3V SDRAM Buffer for Desktop PCs with 3 DIMMs

Features
■ One input to 14 output buffer or driver
■ Supports up to three SDRAM DIMMs
■ Two additional outputs for feedback
■ Serial interface for output control
■ Low skew outputs
■ Up to 100 MHz operation
■ Multiple V_DD and V_SS pins for noise reduction
■ Dedicated OE pin for testing
■ Low EMI outputs
■ 28-pin SOIC (300-mil) package
■ 3.3V operation
Logic Block Diagram
CY2314ANZ
14 Output, 3.3V SDRAM Buffer for
Desktop PCs with 3 DIMMs
Functional Description
The CY2314ANZ is a 3.3V buffer designed to distribute high
speed clocks in desktop PC applications. The part has 14
outputs, 12 of which can be used to drive up to three SDRAM
DIMMs. The remaining can be used for external feedback to a
PLL. The device operates at 3.3V and outputs can run up to 100
MHz.
The CY2314ANZ also includes a serial interface which can
enable or disable each output clock. On power up, all output
clocks are enabled. A separate Output Enable pin facilitates
testing on ATE.
BUF_IN
SDATA
SCLOCK
Serial Interface
Decoding
OE
SDRAM0
SDRAM1
SDRAM2
SDRAM3
SDRAM4
SDRAM5
SDRAM6
SDRAM7
SDRAM8
SDRAM9
SDRAM10
SDRAM11
SDRAM12
SDRAM13
Cypress Semiconductor Corporation • 198 Champion Court
Document #: 38-07143 Rev. *B
• San Jose, CA 95134-1709 • 408-943-2600
Revised November 10, 2008
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