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CY2291 Datasheet(PDF) 1 Page - Cypress Semiconductor

Part No. CY2291
Description  Three-PLL General Purpose EPROM Programmable Clock Generator
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Maker  CYPRESS [Cypress Semiconductor]
Homepage  http://www.cypress.com
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CY2291 Datasheet(HTML) 1 Page - Cypress Semiconductor

 
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CY2291
Three-PLL General Purpose EPROM
Programmable Clock Generator
Cypress Semiconductor Corporation
198 Champion Court
San Jose
, CA 95134-1709
408-943-2600
Document #: 38-07189 Rev. *C
Revised September 16, 2008
Features
Three integrated phase-locked loops
EPROM programmability
Factory-programmable (CY2291) or field-programmable
(CY2291F) device options
Low-skew, low-jitter, high-accuracy outputs
Power-management options (Shutdown, OE, Suspend)
Frequency select option
Smooth slewing on CPUCLK
Configurable 3.3V or 5V operation
20-pin SOIC Package
Benefits
Generates up to three custom frequencies from external
sources
Easy customization and fast turnaround
Programming support available for all opportunities
Meets critical industry standard timing requirements
Supports low-power applications
Eight user-selectable frequencies on CPU PLL
Allows downstream PLLs to stay locked on CPUCLK output
Enables application compatibility
Industry-standard packaging saves on board space
Part Number Outputs
Input Frequency Range
Output Frequency Range
Specifics
CY2291
8
10 MHz–25 MHz (external crystal)
1 MHz–30 MHz (reference clock)
76.923 kHz–100 MHz (5V)
76.923 kHz–80 MHz (3.3V)
Factory Programmable
Commercial Temperature
CY2291I
8
10 MHz–25 MHz (external crystal)
1 MHz–30 MHz (reference clock)
76.923 kHz–90 MHz (5V)
76.923 kHz–66.6 MHz (3.3V)
Factory Programmable
Industrial Temperature
CY2291F
8
10 MHz–25 MHz (external crystal)
1 MHz–30 MHz (reference clock)
76.923 kHz–90 MHz (5V)
76.923 kHz–66.6 MHz (3.3V)
Field Programmable
Commercial Temperature
CY2291FI
8
10 MHz–25 MHz (external crystal)
1 MHz–30 MHz (reference clock)
76.923 kHz–80 MHz (5V)
76.923 kHz–60.0 MHz (3.3V)
Field Programmable
Industrial Temperature
Logic Block Diagram
32XIN
32XOUT
XTALIN
XTALOUT
S2/SUSPEND
S1
S0
SHUTDOWN/
32K
CONFIG
EPROM
OSC.
XBUF
CPLL
SPLL
UPLL
OSC.
CPUCLK
CLKA
CLKB
CLKC
CLKD
OE
CLKF
/1,2,4
/1,2,3,4,5,6
/8,10,12,13
/20,24,26,40
/48,52,96,104
/2,3,4
/1,2,4,8
(8 BIT)
(8 BIT)
(10 BIT)
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