CY25402/CY25422/CY25482
Document #: 001-12565 Rev. *B
Page 3 of 10
Figure 2. Pin Diagram - CY25482 8-LD SOIC
Table 2. Pin Definition - CY25482 (2.5V, 3.0V or 3.3V Supply)
Figure 3. Pin Diagram - CY25422 8-LD SOIC
Table 3. Pin Definition - CY25422 (1.8V Supply)
Pin Number
Name
IO
Description
1
EXCLKIN
Input
2.5V, 3.0V or 3.3V External Clock Input
2
VDD
Power
Power Supply: 2.5V, 3.0V or 3.3V
3
CLK1
Output
Programmable Clock Output with Spread Spectrum
4
REFOUT/FS0
Output/Input
Multifunction Programmable pin: Reference Clock Output or Frequency Select pin
5
PD#/OE/FS1
Input
Multifunction Programmable pin: Power Down, Output Enable or Frequency Select
pin
6
CLK2/SSON
Output/Input
Multifunction Programmable pin: Programmable Clock Output with Spread
Spectrum or Spread Spectrum ON/OFF control pin
7
GND
Power
Power Supply Ground
8
DNU
Output
Do not use this pin
Pin Number
Name
IO
Description
1
XIN/EXCLKIN
Input
Crystal Input or 1.8V External Clock Input
2
VDD
Power
Power Supply: 1.8V
3
CLK1
Output
Programmable Clock Output with Spread Spectrum
4
REFOUT/FS0
Output/Input
Multifunction Programmable pin: Reference Clock Output or Frequency Select pin
5
PD#/OE/FS1
Input
Multifunction Programmable pin: Power Down, Output Enable or Frequency Select
pin
6
CLK2/SSON
Output/Input
Multifunction Programmable pin: Programmable Clock Output with Spread
Spectrum or Spread Spectrum ON/OFF control pin
7
GND
Power
Power Supply Ground
8
XOUT
Output
Crystal Output
VDD
CY25482
1
2
3
4
8
7
6
5
DNU
GND
PD#/OE/FS1
EXCLKIN
CLK1
REFOUT/
FS0
CLK2/SSON
CY25422
1
2
3
4
8
7
6
5
XOUT
GND
PD#/OE/FS1
XIN/
EXCLKIN
VDD
CLK1
REFOUT/
FS0
CLK2/SSON
[+] Feedback