W83194R-39 Datasheet, PDF (2/21 Pages) Winbond – 100MHZ 3-DIMM CLOCK

W83194R-39/-39A
• ¡Ó0.25% or ¡Ó0.5% spread spectrum function to reduce EMI
• Programmable registers to enable/stop each output and select modes
(mode as Tri-state or Normal )
• 2ms power up clock stable time
• MODE pin for power Management
• One 48 MHz for USB & one 24 MHz for super I/O
• 48-pin SSOP package
PRELIMINARY
3.0 BLOCK DIAGRAM
Xin
Xout
BUFFER IN
FS(0:2)* ³
MODE*
CPU_STOP#
PCI_STOP#
SDATA*
SDCLK*
W83194R-39
PLL2
~
XTAL
OSC
1/2
STOP
6
PLL1
Spread
Spectrum
LATCH
~⁴
POR
Control
Logic
Config.
Reg.
STOP
STOP
PCI
Clock STOP
Divider
48MHz
24MHz
IOAPIC
REF(0:1)
2
CPUCLK_F
CPUCLK1
Xin
Xout
BUFFER IN
SDRAM(0:12)
13
FS(0:3)* ⁴
MODE*
PCICLK(0:4)
5
PCICLK_F CPU_STOP#
PCI_STOP#
SDATA*
SDCLK*
W83194R-39A
PLL2
~
XTAL
OSC
1/2
STOP
6
PLL1
Spread
Spectrum
LATCH
~⁴
POR
STOP
STOP
PCI
Clock
Divider
STOP
Control
Logic
Config.
Reg.
48MHz
24MHz
IOAPIC
REF(0:1)
2
CPUCLK_F
CPUCLK1
SDRAM12
SDRAM(0:11)
12
PCICLK(0:4)
5
PCICLK_F
Publication Release Date: May 1998
-2-
Revision 0.20