CY28409OXCT

CY28409OXCT Datasheet

CY28409

Part	Datasheet
CY28409OXCT	CY28409OXCT (pdf)

Related Parts	Information
CY28409ZXC	CY28409ZXC
CY28409OXC	CY28409OXC
CY28409ZXCT	CY28409ZXCT

PDF Datasheet Preview
CY28409 Clock Synthesizer with Differential SRC and CPU Outputs • Supports 4-type CPUs • Selectable CPU frequencies • 3.3V power supply • Ten copies of PCI clocks • Five copies of 3V66 with one optional VCH • Two copies 48-MHz USB clocks • Three differential CPU clock pairs • One differential SRC clock • I2C support with readback capabilities • Ideal Lexmark Spread Spectrum profile for maximum EMI reduction • 56-pin SSOP and TSSOP packages 3V66 Block Diagram XIN XOUT CPU_STP# PCI_STP# FS_[A:B] VTT_PWRGD# IREF XTAL OSC PLL Ref Freq PLL1 Divider Network PLL2 SDATA SCLK I2C Logic Pin Configuration[1] VDD_REF REF0:1 VDD_CPU CPUT[0:2], CPUC[0:2] VDD_SRC SRCT, SRCC VDD_3V66 3V66_[0:3] VDD_PCI PCIF[0:2] PCI[0:6] 3V66_4/VCH VDD_48MHz DOT_48 USB_48 REF_0 REF_1 VDD_REF XIN XOUT VSS_REF PCIF0 PCIF1 PCIF2 VDD_PCI VSS_PCI PCI0 PCI1 PCI2 PCI3 VDD_PCI VSS_PCI PCI4 PCI5 PCI6 PD# 3V66_0 3V66_1 VDD_3V66 VSS_3V66 3V66_2 3V66_3 SCLK CY28409 56 SSOP/TSSOP FS_B VDD_A VSS_A VSS_IREF IREF FS_A CPU_STP# PCI_STP# VDD_CPU CPUT2 CPUC2 VSS_CPU CPUT1 CPUC1 VDD_CPU CPUT0 CPUC0 VSS_SRC SRCT SRCC VDD_SRC VTT_PWRGD# VDD_48 VSS_48 DOT_48 USB_48 SDATA 3V66_4/VCH Note Signals marked with [] and [] have internal pull-up and pull-down resistors, respectively. Cypress Semiconductor Corporation • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600 CY28409 Pin Description Pin No. 1, 2 4 5 41,44,47 40,43,46 38, 37 22,23,26,27 29 7,8,9 12,13,14, 15,18,19,20 31, 32 51,56 52 21 50 49 35 Ordering Information Part Number CY28409OC CY28409OCT CY28409ZC CY28409ZCT PB-Free CY28409OXC CY28409OCXT CY28409ZXC CY28409ZXCT 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 Output Current IOH = 6IREF Voh Z 0.7V 50 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 Page 15 of 17 Package Drawings and Dimensions 56-lead Shrunk Small Outline Package O56 CY28409 51-85062-C 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. Intel and Pentium are registered trademarks of Intel Corporation. All product and company names mentioned in this document are the trademarks of their respective holders. Page 16 of 17 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. CY28409 Document History Page Document Title CY28409 Clock Synthesizer with Differential SRC and CPU Outputs Document Number 38-07445 Orig. of ECN NO. Issue Date Change Description of Change 121414 12/04/02 RGL New Data Sheet 124795 07/07/03 Corrected rise/fall time value on DOT from to ns, respectively Changed USB and DOT from long-term jitter to cycle-to-cycle jitter Changed USB and DOT period value from to ns, respectively 128864 08/29/03 RGL Fixed the I2C registers to match the actual device Removed all items referencing to 166 MHz

PDF Datasheet Preview

CY28409

Clock Synthesizer with Differential SRC and CPU Outputs
• Supports 4-type CPUs
• Selectable CPU frequencies
• 3.3V power supply
• Ten copies of PCI clocks
• Five copies of 3V66 with one optional VCH
• Two copies 48-MHz USB clocks
• Three differential CPU clock pairs
• One differential SRC clock
• I2C support with readback capabilities
• Ideal Lexmark Spread Spectrum profile for maximum EMI reduction
• 56-pin SSOP and TSSOP packages
3V66

Block Diagram

XIN XOUT

CPU_STP# PCI_STP#

FS_[A:B] VTT_PWRGD#

IREF

XTAL OSC

PLL Ref Freq

PLL1

Divider Network

PLL2

SDATA SCLK

I2C Logic

Pin Configuration[1]

VDD_REF REF0:1

VDD_CPU CPUT[0:2], CPUC[0:2] VDD_SRC SRCT, SRCC

VDD_3V66 3V66_[0:3] VDD_PCI PCIF[0:2] PCI[0:6]
3V66_4/VCH

VDD_48MHz DOT_48 USB_48

REF_0 REF_1 VDD_REF

XIN XOUT VSS_REF PCIF0 PCIF1 PCIF2 VDD_PCI VSS_PCI

PCI0 PCI1 PCI2 PCI3 VDD_PCI VSS_PCI PCI4 PCI5 PCI6 PD# 3V66_0 3V66_1 VDD_3V66 VSS_3V66 3V66_2 3V66_3 SCLK

CY28409
56 SSOP/TSSOP

FS_B VDD_A VSS_A VSS_IREF IREF FS_A CPU_STP# PCI_STP# VDD_CPU CPUT2 CPUC2 VSS_CPU CPUT1 CPUC1 VDD_CPU CPUT0 CPUC0 VSS_SRC SRCT SRCC VDD_SRC VTT_PWRGD# VDD_48 VSS_48 DOT_48 USB_48 SDATA 3V66_4/VCH

Note Signals marked with [*] and [**] have internal pull-up and pull-down resistors, respectively.

Cypress Semiconductor Corporation
• 198 Champion Court
• San Jose, CA 95134-1709
• 408-943-2600

CY28409

Pin Description

Pin No. 1, 2 4
5 41,44,47
40,43,46
38, 37 22,23,26,27 29 7,8,9 12,13,14, 15,18,19,20 31, 32 51,56 52
21 50 49 35
Ordering Information

Part Number CY28409OC CY28409OCT CY28409ZC CY28409ZCT PB-Free CY28409OXC CY28409OCXT CY28409ZXC CY28409ZXCT

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

Output Current IOH = 6*IREF

Voh Z 0.7V 50

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

Page 15 of 17

Package Drawings and Dimensions
56-lead Shrunk Small Outline Package O56

CY28409
51-85062-*C
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. Intel and Pentium are registered trademarks of Intel Corporation. All product and company names mentioned in this document are the trademarks of their respective holders.

Page 16 of 17

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.

CY28409

Document History Page

Document Title CY28409 Clock Synthesizer with Differential SRC and CPU Outputs Document Number 38-07445

Orig. of ECN NO. Issue Date Change

Description of Change
121414 12/04/02

RGL New Data Sheet
124795 07/07/03

Corrected rise/fall time value on DOT from to ns, respectively

Changed USB and DOT from long-term jitter to cycle-to-cycle jitter

Changed USB and DOT period value from to
ns, respectively
128864 08/29/03

RGL Fixed the I2C registers to match the actual device

Removed all items referencing to 166 MHz

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 CY28409OXCT Datasheet file may be downloaded here without warranties.

Datasheet ID: CY28409OXCT 507725