cy2546 Cypress Semiconductor Corporation., cy2546 Datasheet - Page 3

• Manufacturer Part Number: cy2546
• Description: Quad Pll Programmable Clock Generator With Spread Spectrum
• Manufacturer: Cypress Semiconductor Corporation.

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