w83196s-14 Winbond Electronics Corp America, w83196s-14 Datasheet - Page 4

• Manufacturer Part Number: w83196s-14
• Description: 100 Mhz Clock For Bx Chipset 2 Chip
• Manufacturer: Winbond Electronics Corp America

5.4 Fixed Frequency Outputs
5.5 Power Pins
6. FREQUENCY SELECTION
SEL100/66#
IOAPIC
REF2X / SEL48*
24/48MHz
48MHz/Mode*
V
V
V
V
V
V
VssC, VssR, Vss4,
VssP
DD
DD
DD
DD
DD
DD
Core
P
A
C
4
R
SYMBOL
SYMBOL
SEL100/66#
1
0
3, 15, 19,
PIN
PIN
16
24
27
14
13
20
25
23
12
26
28
9
CPUCLK_F, CPUCLK1
Power supply for core logic and PLL circuitry. Connect to 3.3V
supply.
Power supply for PCICLK_F and PCICLK 1:6. Connect to 3.3V
supply.
Power supply for IOAPIC output, Connect to 2.5V supply
Power supply for CPUCLK _F and CPUCLK1. Connect to 2.5V
supply.
Power supply for 48mhz USB clock . Connect to 3.3V supply.
Power supply for 14.318mhz ISA clock . Connect to 3.3V supply.
Circuit Ground.
I/O
I/O
I/O
IN
O
O
66.8 MHz
100 MHz
CPU clock frequency select pin.
Provides 14.318 fixed frequency.
Internal 250k
Latched input for SEL48* at initial power up.
SEL48* = 1 , pin14 is 24 MHz
SEL48* = 0 , pin14 is 48 MHz
Reference clock during normal operation.
Frequency is set by the state of pin 27 on power up.
Internal 250k
48 MHz output for USB during normal operation.
Latched input for Mode* at initial power up. Mode* = 0 ,
then pin10 is PCI_STOP#, and pin11 is CPU_STOP#.
Mode* = 1.(default), pin10 is PCICLK5 and pin11 is
PCLCLK6.
- 4 -
Preliminary W83196S-14
pull-up.
pull-up.
FUNCTION
FUNCTION
33.3 MHz
33.3 MHz
PCI