APPROVED PRODUCT
SG556
Mobile PentiumĀ® Processor Application Clock Generator with SSCG, USB and Power Management Support
Product Features
n Supports clock requirements for Mobile PentiumĀ® Processor
n 2 Host and 5 PCI clocks n Separate supply pins for mixed (3.
3/2.
5V)
voltage
application.
n 175ps skew among CPU clocks.
n 250ps skew among PCI clocks.
n 48mhz for USB.
n 28-pin SSOP package for minimum board space.
n Power management capabilities
Frequency Table
SEL100/66#
CPU
PCI
0
66.
4 Mhz*
33.
3 Mhz
1
99.
8 Mhz**
33.
2 MHz
*Down Spread 1.
25% (total); **Down Spread .
5% (total)
Block Diagram
XIN XOUT
OSC
CPU_STOP# PCI_STOP#
SEL1066# PWR_DWN#
PLL
PLL
VDDR REF
VDDC CPUCLK (0:...