CY28RS480OXCT

CY28RS480OXCT Datasheet


CY28RS480

Part Datasheet
CY28RS480OXCT CY28RS480OXCT CY28RS480OXCT (pdf)
Related Parts Information
CY28RS480ZXC CY28RS480ZXC CY28RS480ZXC
CY28RS480OXC CY28RS480OXC CY28RS480OXC
CY28RS480ZXCT CY28RS480ZXCT CY28RS480ZXCT
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CY28RS480

Clock Generator for RS480 Chipset
• Supports CPU
• 200-MHz differential CPU clock pairs
• 100-MHz differential SRC clocks
• 48-MHz USB clock
• 33-MHz PCI clock
• 66-MHz clock

Block Diagram

XIN XOUT

CPU_STP# CLKREQ[0:1]#

XTAL OSC

PLL Ref Freq

PLL1

Divider Network

IREF

PD PLL2

SDATA SCLK

I2C Logic
• I2C support with readback capabilities
• Ideal Lexmark Spread Spectrum profile for maximum
electromagnetic interference EMI reduction
• 3.3V power supply
• 56-pin SSOP and TSSOP packages

CPU SRC HTT66 PCI

REF USB_48

Pin Configuration

VDD_REF REF[0:2]

VDD_CPU CPUT[0:1], CPUC[0:1], VDD_SRC SRCT[0:5],SRCC[0:5] VDD_SRCS SRCST[0:1],SRCSC[0:1] VDD_PCI PCI VDD_HTT HTT66

VDD_48 MHz

USB_48

XIN XOUT VDD_48 USB_48 VSS_48

NC SCLK SDATA

NC CLKREQ#0 CLKREQ#1

SRCT5 SRCC5 VDD_SRC VSS_SRC SRCT4 SRCC4 SRCT3 SRCC3 VSS_SRC VDD_SRC SRCT2 SRCC2 SRCT1 SRCC1 VSS_SRC SRCST1 SRCSC1

CY28RS480
56 SSOP/TSSOP

VDD_REF VSS_REF REF0 REF1 REF2 VDD_PCI PCI0 VSS_PCI VDD_HTT HTT66 VSS_HTT CPUT0 CPUC0 VDD_CPU VSS_CPU CPUT1 CPUC1 VDDA VSSA IREF VSS_SRC1 VDD_SRC1 SRCT0 SRCC0 VDD_SRCS VSS_SRCS SRCST0 SRCSC0

Cypress Semiconductor Corporation
• 3901 North First Street
• San Jose, CA 95134
• 408-943-2600
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CY28RS480

Pin Description

Pin No. 41,40,45,44
50 37

Name CPUT/C

PCI0 IREF
52, 53, 54 7

REF[2:0] SCLK

SDATA
Ordering Information

Part Number Lead-free CY28RS480OXC CY28RS480OXCT CY28RS480ZXC CY28RS480ZXCT

Package Type
56-pin SSOP 56-pin SSOP Tape and Reel 56-pin TSSOP 56-pin TSSOP Tape and Reel

Package Drawing and Dimensions
56-Lead Shrunk Small Outline Package O56

Product Flow

Commercial, 0° to 70°C Commercial, 0° to 70°C Commercial, 0° to 70°C Commercial, 0° to 70°C

DIMENSIONS IN INCHES MIN.

MAX.

SEATING PLANE

GAUGE PLANE
0° -8°
51-85062-*C

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CY28RS480

Package Drawing and Dimensions continued
56-Lead Thin Shrunk Small Outline Package, Type II 6 mm x 12 mm Z56

DIMENSIONS IN MM[INCHES] MIN.

REFERENCE JEDEC MO-153 PACKAGE WEIGHT 0.42gms

PART # Z5624 STANDARD PKG. ZZ5624 LEAD FREE PKG.

MAX.

MAX.

GAUGE PLANE

SEATING PLANE
0° -8°
51-85060-*C

Purchase of I2C components from Cypress or one of its sublicensed Associated Companies conveys a license under the Philips I2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Philips. ATI is a registered trademark of ATI Technologies Inc. HyperTransport is a trademark of the HyperTransport Technology Consortium. Intel and Pentium are registered trademarks of Intel Corporation. AMD is a registered trademark of Advanced Micro Devices, Inc. All product and company names mentioned in this document are the trademarks of their respective holders.

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Cypress Semiconductor Corporation, The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use
of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be
used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its
products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress
products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
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CY28RS480

Document History Page

Document Title CY28RS480 Clock Generator for RS480 Chipset Document Number 38-07638

Orig. of ECN NO. Issue Date Change

Description of Change
325360 See ECN RGL Fixed the ordering information table to match the parts in the DevMaster

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Datasheet ID: CY28RS480OXCT 507737