W83193R Winbond Electronics Corp America, W83193R Datasheet - Page 5

• Manufacturer Part Number: W83193R
• Description: Description = 83.3MHz/100MHz Intel Lx/ex Clock Gen. ;; Package = Ssop 48
• Manufacturer: Winbond Electronics Corp America

5.3 I
SDATA
SDCLK
5.4 Fixed Frequency Outputs
REF0 / CPU3.3#_2.5
REF1 / CPU_STOP#
24MHz / *MODE
48MHz / *FS0
5.5 Power Pins
Vdd
Vddq2
Vddq2b
Vddq3
Vss
2
SYMBOL
SYMBOL
SYMBOL
C Control Interface
6,14,19, 30, 36
3,9,16,22,27,
- 5 -
PIN
PIN
23
24
46
25
26
33,39,45
2
PIN
42
48
1
I/O
I/O
I/O
I/O
I/O
I/O
I/O
IN
Power supply for Ref [0:1] crystal and core logic.
Power supply for CPUCLK[0:3], either 2.5V or 3.3V.
Power supply for IOAPIC output, either 2.5V or 3.3V.
Power supply for SDRAM, PCICLK and 48/24MHz
outputs.
Circuit Ground.
Serial data of I
Serial clock of I
Internal 250kΩ pull-up.
Latched input for CPU3.3#_2.5 at initial power up.
Reference clock during normal operation.
Latched high - Vddq2 = Vddq2b = 2.5V
Latched low
Internal 250kΩ pull-up.
If MODE =1 (default), then this pin is a REF1 buffered
output of the crystal. If MODE = 0 , then this pin is
CPU_STOP# input used in power management
mode for synchronously stopping the all CPU clocks.
Internal 250kΩ pull-up.
Latched input for MODE at initial power up. 24MHz
output for super I/O during normal operation.
Internal 250kΩ pull-up.
Latched input for FS0 at initial power up for H/W
selecting the output frequency of CPU, SDRAM and
PCI clocks. 48MHz output for USB during normal
operation.
2
- Vddq2 = Vddq2b = 3.3V
2
C 2-wire control interface
C 2-wire control interface
Publication Release Date: Nov. 1998
FUNCTION
FUNCTION
FUNCTION
Revision 1.0