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CY2544 Datasheet(PDF) 3 Page - Cypress Semiconductor

Part No. CY2544
Description  Quad PLL Programmable Clock Generator with Spread Spectrum
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Maker  CYPRESS [Cypress Semiconductor]
Homepage  http://www.cypress.com
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CY2544 Datasheet(HTML) 3 Page - Cypress Semiconductor

 
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PRELIMINARY
CY2546
Document #: 001-12563 Rev. *A
Page 3 of 11
CY2544
19
GND
Power
Power Supply Ground for Core
20
CLK9
Output
Programmable Output Clock
21
EXCLKIN
Input
External Clock Input
22
VDD
Power
2.5V/3.0V/3.3V Power Supply
23
XOUT
Output
Crystal Output
24
XIN
Input
Crystal Input
Pin Description - CY2544 (2.5V, 3.0V or 3.3V VDD) (continued)
Pin Number
Name
I/O
Description
Pin Description - CY2546 (1.8V VDD_CORE)
Pin Number
Name
I/O
Description
1
GND
Power
Power Supply Ground for Core
2
CLK1
Output
Programmable Output Clock
3
VDD_CLK_B1
Power
1.8V Power Supply for Output Bank1 (CLK1, CLK2, CLK3) output
4
PD#/OE
Input
Power Down or Output Enable
5
VDD_CORE
Power Supply
1.8V Power Supply for Core
6
CLK2
Output
Programmable Output Clock
7
GND
Power
Power Supply Ground For Output Bank 1
8
CLK3/FS0
Output/Input
Multifunction Programmable pin,CLK3
Output Clock or Frequency
Select pin FS0
9
PD#/OE/FS1
Input
Multifunction Programmable pin, Power Down, Output Enable or
Frequency Select pin FS1
10
CLK4/FS2
Output/Input
Multifunction Programmable pin, CLK4 Output or Frequency
Select input pin FS2
11
CLK5
Output
Programmable Output Clock
12
GND
Power
Power Supply Ground for Output Bank 2
13
CLK6
Output
Programmable Output Clock
14
VDD_CLK_B2
Power
1.8V Power Supply for Output Bank2 (CLK4, CLK5, CLK6) output
15
CLK7/SSON
Output/Input
Multifunction Programmable pin, CLK4 Output or SSON input
16
VDD_CLK_B3
Power
1.8V Power Supply for Output Bank3 (CLK7, CLK8, CLK9) output
17
CLK8
Output
Programmable Output Clock
18
GND
Power
Power Supply Ground for Output Bank 3
19
GND
Power
Power Supply Ground for Core
20
CLK9
Output
Programmable Output Clock
21
EXCLKIN
Input
External Low Voltage Reference Clock Input
22
VDD_CORE
Power
1.8V Power Supply for Core
23
XOUT
Output
Crystal Output
24
XIN
Input
Crystal Input
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