CY28331OXCT

CY28331OXCT Datasheet

CY28331

Part	Datasheet
CY28331OXCT	CY28331OXCT (pdf)

Related Parts	Information
CY28331OXC	CY28331OXC

PDF Datasheet Preview
CY28331 Clock Generator for AMD Hammer • Supports AMD Hammer CPU • Two differential pairs of CPU clocks • Eight low-skew/low-jitter PCI clocks • One free-running PCI clock • Four low-skew/low-jitter PCI/HyperTransport clocks • One 48M output for USB • One programmable 24M or 48M for FDC • Three REF 14.318-MHz clocks • programmability • Lexmark Spread Spectrum for optimal electromagnetic interference EMI reduction • SMBus register-programmable options • 5V-tolerance SCLK and SDATA lines • 3.3V operation • Power management control pins • 48-pin SSOP package Block Diagram Table Frequency Table MHz [1] FS PCI_HT 3:0 SEL HT66 0000 X High-Z All outputs except XOUT are three-stated 0001 0010 0011 0100 0101 0110 0111 default 1000 1001 1010 1011 1100 1101 1110 1111 Pin Configuration XIN XOUT 14.31818MHz XTAL /4 PLL1 /2 SEL# FS 0:3 PCISTOP# SPREAD PD# SCLK SDATA Control Logic PLL2 /N STOP CNTL REF 0:2 USB 24_48MHz SRESET# CPUT 0:1 CPUC 0:1 PCI33_F PCI33_ 0:7 FS0/REF0 VDD XIN Ordering Information Part Number CY28331OC CY28331OCT Lead-free CY28331OXC CY28331OXCT Figure PD# Assertion Waveform Figure PD# Deassertion Waveform Package Type 48-pin SSOP 48-pin SSOP Tape and Reel 48-pin SSOP 48-pin SSOP 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 Page 15 of 17 [+] Feedback Package Drawing and Dimensions 48-pin Shrunk Small Outline Package O48 CY28331 51-85061-C AMD is a trademark of Advanced Micro Devices, Inc. Dial-a-Frequency is a registered trademark, and Dial-a-Skew and Dial-a-Ratio are trademarks, of Cypress Semiconductor Corporation. HyperTransport is a licensed trademark of the HyperTransport Technology Consortium. 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. [+] Feedback CY28331 Document History Page Document Title CY28331 Clock Generator for AMD Hammer Document Number 38-07491 ECN NO. Issue Date Orig. of Change Description of Change 120617 11/11/02 RGL New Data Sheet 121407 11/12/02 125988 04/17/03 RGL Changed the power up value of the Byte7 bit6 from 0 to 1 131420 12/05/03 RGL/SDR Changed min. TR value for PCI/Hypertransport from 1 to V/ns Changed min. TF value for PCI/Hypertransport from 1 to V/ns Changed max. TCCJ value for PCI/Hypertransport from 250 to 400 ps 237872 See ECN RGL Minor Change typo error in page one 353939 See ECN RGL Added Lead-free devices Page 17 of 17 [+] Feedback

PDF Datasheet Preview

CY28331

Clock Generator for AMD Hammer
• Supports AMD Hammer CPU
• Two differential pairs of CPU clocks
• Eight low-skew/low-jitter PCI clocks
• One free-running PCI clock
• Four low-skew/low-jitter PCI/HyperTransport clocks
• One 48M output for USB
• One programmable 24M or 48M for FDC
• Three REF 14.318-MHz clocks
• programmability
• Lexmark Spread Spectrum for optimal electromagnetic
interference EMI reduction
• SMBus register-programmable options
• 5V-tolerance SCLK and SDATA lines
• 3.3V operation
• Power management control pins
• 48-pin SSOP package

Block Diagram

Table Frequency Table MHz [1]

FS PCI_HT
3:0 SEL

HT66
0000

X High-Z All outputs except XOUT are three-stated
0001
0010
0011
0100
0101
0110
0111
default
1000
1001
1010
1011
1100
1101
1110
1111

Pin Configuration

XIN XOUT
14.31818MHz XTAL
/4 PLL1
/2 SEL#

FS 0:3 PCISTOP#

SPREAD PD# SCLK

SDATA

Control Logic

PLL2
/N STOP CNTL

REF 0:2 USB 24_48MHz

SRESET# CPUT 0:1 CPUC 0:1 PCI33_F PCI33_ 0:7
*FS0/REF0 VDD XIN
Ordering Information

Part Number CY28331OC CY28331OCT Lead-free CY28331OXC CY28331OXCT

Figure PD# Assertion Waveform

Figure PD# Deassertion Waveform

Package Type 48-pin SSOP 48-pin SSOP Tape and Reel
48-pin SSOP 48-pin SSOP 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

Page 15 of 17 [+] Feedback

Package Drawing and Dimensions
48-pin Shrunk Small Outline Package O48

CY28331
51-85061-*C

AMD is a trademark of Advanced Micro Devices, Inc. Dial-a-Frequency is a registered trademark, and Dial-a-Skew and Dial-a-Ratio are trademarks, of Cypress Semiconductor Corporation. HyperTransport is a licensed trademark of the HyperTransport Technology Consortium.

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.
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CY28331

Document History Page

Document Title CY28331 Clock Generator for AMD Hammer Document Number 38-07491

ECN NO.

Issue Date

Orig. of Change

Description of Change
120617 11/11/02

RGL New Data Sheet
121407 11/12/02
125988 04/17/03

RGL Changed the power up value of the Byte7 bit6 from 0 to 1
131420 12/05/03 RGL/SDR Changed min. TR value for PCI/Hypertransport from 1 to V/ns

Changed min. TF value for PCI/Hypertransport from 1 to V/ns

Changed max. TCCJ value for PCI/Hypertransport from 250 to 400 ps
237872 See ECN RGL Minor Change typo error in page one
353939 See ECN RGL Added Lead-free devices

Page 17 of 17
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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 CY28331OXCT Datasheet file may be downloaded here without warranties.

Datasheet ID: CY28331OXCT 507720