CY28405 - CK409-Compliant Clock Synthesizer
Pin No.
1, 2 REF(0:1) Name Type O, SE I I Description Reference Clock.
3.3V 14.318-MHz clock output.
3.3V LVTTL latched input for CPU frequency selection.
Crystal Connection or External Reference Frequency Input.
This pin has dual functions.
It can be used as an external 14.318-MHz crystal connectio
CY28405 Features
* Supports Intel Springdale/Prescott (CK409)
* Selectable CPU frequencies
* 3.3V power supply
* Nine copies of PCI clock
* Four copies 3V66 clock with one optional VCH
* Two copies 48-MHz USB clock
* Two copies REF clock
* Three differ
