PRELIMINARY
CY2546
Document #: 001-12563 Rev. *A
Page 2 of 11
CY2544
Pin Configuration
CLK1
PD#OE
CY2544
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
GND
VDD_CLK_B1
NC
CLK2
CLK6
VDD_CLK_B2
CLK7/SSON
VDD_CLK_B3
CLK8
GND
24LD QFN
CLK1
PD#OE
CY2546
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
GND
VDD_CLK_B1
VDD_CORE
CLK2
CLK6
VDD_CLK_B2
CLK7/SSON
VDD_CLK_B3
CLK8
GND
24LD QFN
Pin Description - CY2544 (2.5V, 3.0V or 3.3V VDD)
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
2.5V/3.0V/3.3V Power Supply for Output Bank1 (CLK1, CLK2,
CLK3) output
4
PD#/OE
Input
Power Down or Output Enable
5
NC
NC
No Connect
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
2.5V/3.0V/3.3V Power Supply for Output Bank2 (CLK4, CLK5,
CLK6) output
15
CLK7/SSON
Output/Input
Multifunction Programmable pin, CLK7 Output or SSON input
16
VDD_CLK_B3
Power
2.5V/3.0V/3.3V 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
[+] Feedback
[+] Feedback