CY2291 Cypress Semiconductor Corporation., CY2291 Datasheet

no-image

CY2291

Manufacturer Part Number
CY2291
Description
Manufacturer
Cypress Semiconductor Corporation.
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CY2291F
Manufacturer:
CY
Quantity:
28
Part Number:
CY2291F
Quantity:
139
Part Number:
CY2291F
Manufacturer:
CY
Quantity:
1 000
Part Number:
CY2291F
Manufacturer:
CY
Quantity:
1 000
Part Number:
CY2291F
Manufacturer:
VIC
Quantity:
20 000
Part Number:
CY2291FX
Manufacturer:
VISHAY
Quantity:
4 932
Part Number:
CY2291SC
Manufacturer:
CY
Quantity:
5 510
Part Number:
CY2291SC
Quantity:
5 510
Part Number:
CY2291SC-167
Manufacturer:
CYPRESS/赛普拉斯
Quantity:
20 000
Part Number:
CY2291SC-225
Manufacturer:
CYP
Quantity:
20 000
5
Cypress Semiconductor Corporation
Document #: 38-07189 Rev. *A
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
Selector Guide
CY2291
CY2291I
CY2291F
CY2291FI
Logic Block Diagram
Part Number
Outputs
8
8
8
8
Features
10 MHz–25 MHz (external crystal)
1 MHz–30 MHz (reference clock)
10 MHz–25 MHz (external crystal)
1 MHz–30 MHz (reference clock)
10 MHz–25 MHz (external crystal)
1 MHz–30 MHz (reference clock)
10 MHz–25 MHz (external crystal)
1 MHz–30 MHz (reference clock)
S2/SUSPEND
SHUTDOWN/
XTALOUT
Input Frequency Range
32XOUT
XTALIN
32XIN
S0
S1
OE
EPROM Programmable Clock Generator
OSC.
OSC.
3901 North First Street
(8 BIT)
(10 BIT)
(8 BIT)
CPLL
UPLL
SPLL
Generates up to 3 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
8 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
76.923 kHz–100 MHz (5V)
76.923 kHz–80 MHz (3.3V)
76.923 kHz–90 MHz (5V)
76.923 kHz–66.6 MHz (3.3V)
76.923 kHz–90 MHz (5V)
76.923 kHz–66.6 MHz (3.3V)
76.923 kHz–80 MHz (5V)
76.923 kHz–60.0 MHz (3.3V)
/1,2,4,8
/8,10,12,13
/20,24,26,40
/48,52,96,104
/1,2,3,4,5,6
/1,2,4
Output Frequency Range
/2,3,4
Three-PLL General Purpose
San Jose
CONFIG
EPROM
Benefits
CA 95134
Revised December 14, 2002
Factory Programmable
Commercial Temperature
Factory Programmable
Industrial Temperature
Field Programmable
Commercial Temperature
Field Programmable
Industrial Temperature
32K
XBUF
CPUCLK
CLKD
CLKF
CLKA
CLKB
CLKC
Specifics
408-943-2600
CY2291
[+] Feedback

Related parts for CY2291

CY2291 Summary of contents

Page 1

... 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. operation 20-pin SOIC Package Selector Guide Part Number Outputs CY2291 8 10 MHz–25 MHz (external crystal) 1 MHz– ...

Page 2

... Please refer to application note “Understanding the CY2291, CY2292 and CY2295” for more information. 4. The CY2291 has weak pull-downs on all outputs (except 32K). Hence, when a three-state condition is forced on the outputs, the output pins are pulled LOW. Document #: 38-07189 Rev. *A CY2291 20-pin SOIC ...

Page 3

... The CY2291 can be configured for either 5V or 3.3V operation. The internal ROM tables use EPROM technology, allowing full customization of output frequencies. The reference oscillator has been designed for 10-MHz to 25-MHz crystals, providing additional flexibility ...

Page 4

... IN Three-state outputs Max., 5V operation DD DD Shutdown active, CY2291/CY2291F excluding V BATT V = 3.0V BATT / connected to the Xout pin. DD =10+0.06•(F +F +2•F )+0.27•(F +F CPLL UPLL SPLL CLKA CLKB CY2291 Min. Max. Unit 4.5 5.5 V 3.0 3.6 V 2 10.0 25.0 MHz 1 30 MHz ...

Page 5

... Except crystal pins Except crystal pins –0. +0.5V IN Three-state outputs Max., 5V operation DD DD Shutdown active, CY2291I/CY2291FI excluding V BATT = 3.0V BATT CY2291 Min. Typ. Max. Unit 2 BATT 0.5 0.4 V 2.0 V 0.8 V < < 250 ...

Page 6

... Except crystal pins Except crystal pins –0. +0.5V IN Three-state outputs max., 3.3V operation DD DD Shutdown active, CY2291I/CY2291FI excluding V BATT V = 3.0V BATT CY2291 Min. Typ. Max. Unit 2 BATT 0.5 0.4 V 2.0 V 0.8 V < < 250 ...

Page 7

... Max. – t min.),% 9A 9A < 4 MHz) OUT Max. – t min < 16 MHz) OUT < 50 MHz) OUT CY2291 CY2291F CY2291 Min. Typ. Max. Unit 10 13000 ns (76.923 kHz) 11.1 13000 ns (76.923 kHz) 40% 50% 60% 45% 50 ...

Page 8

... MHZ [13] [13] [3, 12, 15] Max. – < 4 MHz) OUT Max. – t min < 16 MHz) OUT < 50 MHz) OUT > 50 MHz) CY2291 CY2291F CY2291 Min. Typ. Max. Unit 12.5 13000 ns (80 MHz) (76.923 kHz) 15 13000 ns (66.6 MHz) (76.923 kHz) 40% 50% 60% 45% 50% ...

Page 9

... Max. – < 4 MHz) OUT Max. – t min < 16 MHz) OUT < 50 MHz) OUT > 50 MHz) CY2291I CY2291FI CY2291 Min. Typ. Max. Unit 11.1 13000 ns (90 MHz) (76.923 kHz) 12.5 13000 ns (80 MHz) (76.923 kHz) 40% 50% 60% 45% 50% ...

Page 10

... Max. – t min.),% 9A 9A < 4 MHz) OUT Max. – t min < 16 MHz) OUT < 50 MHz) OUT CY2291I CY2291FI CY2291 Min. Typ. Max. Unit 15 13000 ns (66.6 MHz) (76.923 kHz) 16.66 13000 ns (60 MHz) (76.923 kHz) 40% 50% 60% 45% 50% 55 ...

Page 11

... CLK Outputs Jitter and Skew t 9A CLK OUTPUT RELATED CLK CPU Frequency Change OLD SELECT SELECT F old CPU Test Circuit 0.1 F Document #: 38-07189 Rev NEW SELECT STABLE t & new CLK out C OUTPUTS LOAD GND CY2291 Page [+] Feedback ...

Page 12

... CY2291SL–XXX S5 CY2291F S5 CY2291SI–XXX S5 CY2291FI S5 CyClocks is a trademark of Cypress Semiconductor Corporation. Pentium is a registered trademark of Intel Corporation. Custom Configuration Request Procedure The CY229x are EPROM-programmable devices that may be configured in the factory or in the field by a Cypress Field Applica- tion Engineer (FAE). The output frequencies requested will be matched as closely as the internal PLL divider and multiplier options allow ...

Page 13

... The inclusion of Cypress Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. 20-Lead (300-Mil) Molded SOIC S5 CY2291 51-85024-A Page ...

Page 14

... Document Title: CY2291 Three-PLL General Purpose EPROM Programmable Clock Generator Document Number: 38-07189 Issue Orig. of REV. ECN NO. Date Change ** 110321 10/28/01 SZV *A 121836 12/14/02 Document #: 38-07189 Rev. *A Description of Change Change from Spec number: 38-00410 to 38-07189 RBI Power up requirements added to Operating Conditions Information CY2291 ...

Related keywords