CY28RS400 Datasheet (Cypress Semiconductor) - Clock Generator for ATI RS400 Chipset

CY28RS400, Clock Generator for ATI RS400 Chipset

Pin No.

47,46,43,42, 41,40 50 Name CPUT/C[2:0] PCI0/409_410 Type O, DIF Differential CPU clock output.

Intel Type-X buffer.

I/O, PD 33-MHz clock output/CPU Frequency table Select Intel Type-5 buffer.

0 = 410 frequency select table 1 = 409 frequency select table.

This has an internal pull-down A prec

CY28RS400 Features

* Supports Intel CPU

* Selectable CPU frequencies

* Differential CPU clock pairs

* 100-MHz differential SRC clocks

* 48-MHz USB clock

* 33-MHz PCI clock

* Low-voltage frequency select input

* I2C support with readback capabilities