CY2254ASC-1T Cypress Semiconductor Corp, CY2254ASC-1T Datasheet
CY2254ASC-1T
Specifications of CY2254ASC-1T
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CY2254ASC-1T Summary of contents
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... S1 OE Intel and Pentium are registered trademarks of Intel Corporation. Triton is a trademark of Intel Corporation. Cyrix is a registered trademark of Cyrix Corporation. Cypress Semiconductor Corporation Document #: 38-07203 Rev. *A Pentium • Freq. stability = 0.01% (max.) • Output duty cycle 45% min. to 55% max. • Test mode support ( 1 option only) • ...
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Pin Summary Name [1] XTALIN 2 2 [1] XTALOUT CPUCLK0 6 6 CPUCLK1 CPUCLK2 9 9 CPUCLK3 ...
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PCI Clock Driver Strength Requirements • Matched impedances on both rising and falling edges on the output drivers • Output impedance: 25 (typical) measured at 1.5V • Maximum output impedance: 40 measured at 1.5V CPU Clock Driver Strength Requirements • ...
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Electrical Characteristics V = 3.135V DD Parameter Description Notes: 3. Electrical parameters are guaranteed with these operating conditions. 4. Guaranteed by design, not tested. [5] Switching Characteristics Parameter Output t All 1 [4] t CPUCLK, PCICLK 2 [4] t REF, ...
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Switching Waveforms (continued) Clock Skew 1.5V CPUCLK/ 1.5V PCICLK Notes: 5. All parameters specified with outputs fully loaded. 6. Duty cycle is measured at 1.5V. Document #: 38-07203 Rev. *A CY2254A Page [+] ...
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... CPU-PCI Clock Skew CPUCLK 1.5V 1.5V PCICLK t 7 Test Circuit 0 0.1 F 0.1 F Note: All capacitors should be placed as close to each pin as possible. Ordering Information Package Ordering Code Name CY2254ASC 1 S21 28-Pin SOIC CY2254ASC 2 S21 28-Pin SOIC Document #: 38-07203 Rev 0 0 OUTPUTS C LOAD ...
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... Document #: 38-07203 Rev. *A © Cypress Semiconductor Corporation, 2001. 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 Semiconductor product. Nor does it convey or imply any license under patent or other rights. Cypress Semiconductor 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 ...
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Document Title: CY2254A Pentium Processor Compatible Clock Synthesizer/Driver Document Number: 38-07203 Issue REV. ECN NO. Date Change ** 111723 12/15/01 *A 121838 12/14/02 Document #: 38-07203 Rev. *A Orig. of Description of Change DSG Change from Spec number: 38-00504 ...