CY28158OXC
CY28158OXC Datasheet
CY28158
| Part | Datasheet |
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CY28158OXC |
CY28158OXC (pdf) |
| Related Parts | Information |
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CY28158OXCT |
CY28158OXCT |
| PDF Datasheet Preview |
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| CY28158 Spread Spectrum Timing Solution for Serverworks Chipset • Maximized EMI suppression using Cypress’s spread spectrum technology • Based on Industry Standard CK133 Pinout with all outputs compliant to CK98 specifications • downspread outputs deliver up to 10dB lower EMI • 6 skew-controlled copies of CPU output • 6 copies of PCI output synchronous w/CPU output • 2 copies of 66 MHz fixed frequency 3.3V clock • 3 copies of MHz IOAPIC clock, synchronous to CPU clock • 1 copy of 48 MHz USB output • 2 copies of MHz reference clock • Programmable to 133 or 100 MHz operation • Power management control pins for clock stop and shut down • Available in 56-pin SSOP Key Specifications Supply VDD33 = 3.3V ± 5% VDD25 = 2.5V ± 5% CPU Output Jitter ps CPU Output Skew ps CPU to 3V66 Output Offset: to1.5 ns CPU leads CPU to IOAPIC Output Offset to ns CPU leads CPU to PCI Output Offset................. 0 to ns CPU leads Table Pin Selectable Frequency. SEL133/100# CPU0:5 MHz Block Diagram X1 X2 CPU_STOP# XTAL OSC 2 REF0:1 STOP Clock Logic 6 CPU0:5 SPREAD# SEL0 SEL1 SEL133/100# PWRDWN# PCI_STOP# PLL 1 Power Down Logic STOP Clock Logic STOP Clock Logic 2 3V66_0:1 1 PCI_F 5 PCI1:5 3 IOAPIC0:2 Tristate Logic PLL2 1 48MHz Pin Configuration Ordering Information Ordering Code CY28158PVC CY28158PVCT Lead Free CY28158OXC CY28158OXCT Package Name O56 Package Type 56-Pin SSOP 56-Pin SSOP- Tape and Reel 56-Pin SSOP 56-Pin SSOP- Tape and Reel Operating Range Commercial Commercial Page 8 of 10 Package Diagram 56-Lead Shrunk Small Outline Package O56 CY28158 51-85062-C Page 9 of 10 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. CY28158 Document Title CY28158 Spread Spectrum Timing Solution for Serverworks Chipset Document Number 38-07039 Issue ECN NO. Date Orig. of Change Description of Change 107005 08/08/01 IKA New Data Sheet 122732 12/16/02 RBI Added power-up requirements to operating conditions information. 237871 See ECN RGL Added Lead Free Devices Page 10 of 10 |
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