CY2291FX Cypress Semiconductor Corp, CY2291FX Datasheet
CY2291FX
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CY2291FX
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CY2291FX Summary of contents
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... MHz–30 MHz (reference clock) Logic Block Diagram 32XIN 32XOUT XTALIN XTALOUT S2/SUSPEND SHUTDOWN/ Cypress Semiconductor Corporation Document #: 38-07189 Rev. *B Three-PLL General Purpose EPROM Programmable Clock Generator Benefits • Generates up to three custom frequencies from external sources • Easy customization and fast turnaround • ...
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Pin Configurations Pin Summary Name Pin Number 32XOUT 1 32K 2 CLKC GND 5 [1] XTALIN 6 [1, 2] XTALOUT 7 XBUF 8 CLKD 9 CPUCLK 10 CLKB 11 CLKA 12 CLKF ...
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Output Configuration The CY2291 has five independent frequency sources on-chip. These are the 32-kHz oscillator, the reference oscillator, and three Phase-Locked Loops (PLLs). Each PLL has a specific function. The System PLL (SPLL) drives the CLKF output and provides fixed ...
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Maximum Ratings (Above which the useful life may be impaired. For user guide- lines, not tested.) Supply Voltage .............................................. –0. 7.0V DC Input Voltage........................................... –0. 7.0V [5] Operating Conditions Parameter V Supply Voltage, 5.0V operation DD ...
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Electrical Characteristics, Commercial 3.3V Parameter Description V HIGH-Level Output Voltage LOW-Level Output Voltage OL V 32.768-kHz HIGH-Level OH–32 Output Voltage V 32.768-kHz LOW-Level OL–32 Output Voltage V HIGH-Level Input Voltage IH V LOW-Level Input Voltage IL I ...
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Electrical Characteristics, Industrial 3.3V Parameter Description I Input LOW Current IL I Output Leakage Current OZ [10 Supply Current DD DD Industrial I V Power Supply Current in DDS DD [10] Shutdown Mode I V Power Supply Current ...
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Switching Characteristics, Commercial 3.3V Parameter Name t Output Period Clock output range, 3.3V 1 operation Output Duty Duty cycle for outputs, defined as t [11] Cycle f Duty cycle for outputs, defined Rise Time Output clock ...
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Switching Characteristics, Industrial 5.0V Parameter Name t Skew Skew delay between any identical or related 7 outputs t CPUCLK Slew Frequency transition rate 8 [14] t Clock Jitter Peak-to-peak period jitter ( clock period (f [14] t Clock ...
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Switching Waveforms All Outputs, Duty Cycle and Rise/Fall Time OUTPUT t 3 Output Three-State Timing [ ALL THREE-STATE OUTPUTS CLK Outputs Jitter and Skew t 9A CLK OUTPUT RELATED CLK CPU Frequency Change OLD SELECT SELECT F ...
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... CY2291FXT 20-Pin SOIC – Tape and Reel CY2291SXI–XXX 20-Pin SOIC CY2291SXI–XXXT 20-Pin SOIC – Tape and Reel CY2291FXI 20-Pin SOIC CY2291FXIT 20-Pin SOIC – Tape and Reel Package Characteristics Package 20-pin SOIC Document #: 38-07189 Rev. *B Package Type θ θ ...
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... Document #: 38-07189 Rev. *B © Cypress Semiconductor Corporation, 2004. 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 ...
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Document History Page Document Title: CY2291 Three-PLL General Purpose EPROM Programmable Clock Generator Document Number: 38-07189 REV. ECN NO. Issue Date ** 110321 10/28/01 *A 121836 12/14/02 *B 276756 See ECN Document #: 38-07189 Rev. *B Orig. of Change Description ...