PI6C104 Просмотр технического описания (PDF) - Pericom Semiconductor
Номер в каталоге
Компоненты Описание
производитель
PI6C104 Datasheet PDF : 14 Pages
| |||
PI6C104
Spread Spectrum Clock Synthesizer
for Desktop Pentium II 111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222
Pin Description
Pin
Signal Name
1
XTAL_IN
2
XTAL_OUT
PCICLK_F
4
S1
Type
XI
XO
O
I+PU
5,6,7,8,10 PCICLK[1:5]
O
PCICLK6
O
11
PD#
I+PU
48M
O
13
MODE
I+PU
24M
O
REF
O
14
S2
I+PU
16
17
18
21,22
24
27
S0
I+PU
SCLK
I+PU
SDATA
IO+PU
CPUCLK[0:1] O
APIC
O
REF1
O
P14
1
9,12,20,26
23,25
3,15,19,28
VDD
VDD2
VSS
Qty.
Description
1 14.318 MHz crystal input
1 14.318 MHz crystal input
1 Free running PCI clock output.
Frequency Select bit 1
During power up this pin is S1 input, PCICLK_F output otherwise
5 PCI clock outputs.
PCI clock outputs.
Active low Power Down input. PCI and CPU clocks are disabled when
1 PD# is low, except for PCICLK_F
This pin is set by MODE (pin 13). MODE = 0: PD# input,
MODE = 1: PCICLK6 output
48 MHz output
1 MODE determines the definition of pin 11, 0=PD# input, 1=PCICLK6 output
This is a an input, sampled during power up. Becomes 48 MHz output after power up
24 MHz output
Buffered Reference output.
1 Frequency Select bit 2.
During power up this pin is S2 input, output otherwise. P14 (pin 27) mode selects:
0 = REF, 1 = 24 MHz
1 Frequency Select bit 0
1 Serial Clock for I2C interface
1 Serial Data for I2C interface
2 CPU clock output
1 Buffered Crystal output.
1 Buffered Crystal output.
1 Pin 14 mode select, 0 = REF1, 1 = 24 MHz
During power up this pin is P14 input, REF1 output otherwise.
4 Power supply for PCI, Core, REF, PLL. 3.3V
2 Power supply for APIC & CPU clocks. 2.5V
4 Grounds
235
PS8164B 03/15/99
Share Link: 