CY28RS400ZXC

CY28RS400ZXC Datasheet

CY28RS400

Part	Datasheet
CY28RS400ZXC	CY28RS400ZXC (pdf)

Related Parts	Information
CY28RS400OXC	CY28RS400OXC
CY28RS400OXCT	CY28RS400OXCT
CY28RS400ZXCT	CY28RS400ZXCT

PDF Datasheet Preview
CY28RS400 Clock Generator for RS400 Chipset • Supports CPU • Selectable CPU frequencies • Differential CPU clock pairs • 100-MHz differential SRC clocks • 48-MHz USB clock • 33-MHz PCI clock • Low-voltage frequency select input • 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 USB_48 Block Diagram XIN XOUT CPU_STP# CLKREQ[0:1]# FS_[C:A] VTT_PWRGD# IREF XTAL OSC PLL Ref Freq PLL1 Divider Network PD PLL2 SDATA SCLK I2C Logic Pin Configuration VDD_REF REF[0:2] Xin XOUT VDD_CPU CPUT[0:2], CPUC[0:2], VDD_48 USB_48 VSS_48 VDD_SRC VTT_PWRGD#/PD SRCT[0:5],SRCC[0:5] SCLK VDD_SRCS SDATA SRCST[0:1],SRCSC[0:1] VDD_PCI PCI CLKREQ#0 CLKREQ#1 SRCT5 SRCC5 VDD_SRC VDD_48 MHz VSS_SRC SRCT4 SRCC4 Ordering Information Part Number Standard CY28RS400OC CY28RS400OCT CY28RS400ZC CY28RS400ZCT Lead-free CY28RS400OXC CY28RS400OXCT CY28RS400ZXC CY28RS400ZXCT Package Type 56-pin SSOP 56-pin SSOP Tape and Reel 56-pin TSSOP 56-pin TSSOP Tape and Reel 56-pin SSOP 56-pin SSOP Tape and Reel 56-pin TSSOP 56-pin TSSOP Tape and Reel Product Flow Commercial, 0° to 70°C Commercial, 0° to 70°C Commercial, 0° to 70°C Commercial, 0° to 70°C Commercial, 0° to 70°C Commercial, 0° to 70°C Commercial, 0° to 70°C Commercial, 0° to 70°C Package Diagrams 56-Lead Shrunk Small Outline Package O56 DIMENSIONS IN INCHES MIN. MAX. SEATING PLANE GAUGE PLANE 0° -8° 51-85062-C Page 17 of 19 [+] Feedback CY28RS400 Package Diagrams 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 trademarks of their respective holder. Page 18 of 19 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. [+] Feedback CY28RS400 Document History Page Document Title CY28RS400 Clock Generator for RS400 Chipset Document Number 38-07637

PDF Datasheet Preview

CY28RS400

Clock Generator for RS400 Chipset
• Supports CPU
• Selectable CPU frequencies
• Differential CPU clock pairs
• 100-MHz differential SRC clocks
• 48-MHz USB clock
• 33-MHz PCI clock
• Low-voltage frequency select input
• 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

USB_48

Block Diagram

XIN XOUT

CPU_STP# CLKREQ[0:1]#

FS_[C:A] VTT_PWRGD#

IREF

XTAL OSC

PLL Ref Freq

PLL1

Divider Network

PD PLL2

SDATA SCLK

I2C Logic

Pin Configuration

VDD_REF REF[0:2]

Xin XOUT

VDD_CPU CPUT[0:2], CPUC[0:2],

VDD_48 USB_48

VSS_48

VDD_SRC

VTT_PWRGD#/PD

SRCT[0:5],SRCC[0:5]

SCLK

VDD_SRCS

SDATA

SRCST[0:1],SRCSC[0:1]

VDD_PCI PCI

CLKREQ#0 CLKREQ#1

SRCT5

SRCC5

VDD_SRC

VDD_48 MHz

VSS_SRC SRCT4

SRCC4
Ordering Information

Part Number Standard CY28RS400OC CY28RS400OCT CY28RS400ZC CY28RS400ZCT Lead-free CY28RS400OXC CY28RS400OXCT CY28RS400ZXC CY28RS400ZXCT

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

Product Flow

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

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

Package Diagrams
56-Lead Shrunk Small Outline Package O56

DIMENSIONS IN INCHES MIN.

MAX.

SEATING PLANE

GAUGE PLANE
0° -8°
51-85062-*C

Page 17 of 19
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CY28RS400

Package Diagrams 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 trademarks of their respective holder.

Page 18 of 19

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.
[+] Feedback

CY28RS400

Document History Page

Document Title CY28RS400 Clock Generator for RS400 Chipset Document Number 38-07637

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived CY28RS400ZXC Datasheet file may be downloaded here without warranties.

Datasheet ID: CY28RS400ZXC 507736