82801CA Datasheet, PDF (464/521 Pages) Intel Corporation – I/O Controller Hub 3-S (ICH3-S)

Electrical Characteristics
16.4 AC Characteristics
Table 16-7. Clock Timings
Sym
Parameter
PCI Clock (PCICLK)
t1 Period
t2 High Time
t3 Low Time
t4 Rise Time
t5 Fall Time
Oscillator Clock (OSC)
t6 Period
t7 High Time
t8 Low Time
USB Clock (USBCLK)
fclk48
t9
t10
t11
t12
t13
Operating Frequency
Frequency Tolerance
High Time
Low Time
Rise Time
Fall Time
SMBus Clock (SMBCLK)
fsmb
t18
t19
t20
t21
Operating Frequency
High Time
Low Time
Rise Time
Fall Time
I/O APIC Clock (APICCLK)
fioap
t22
t23
t24
t25
Operating Frequency
High Time
Low Time
Rise Time
Fall Time
AC ’97 Clock (BITCLK)
fac97
t26
t27
t28
Operating Frequency
Output Jitter
High Time
Low Time
464
Min Max Unit Notes Figure
30 33.3
ns
12
ns
12
ns
3
ns
3
ns
16-1
16-1
16-1
16-1
16-1
67
70
ns
20
20
ns
16-1
16-1
16-1
48
MHz
500 ppm
8
ns
8
ns
1.2
ns
1.2
ns
1
2
16-1
16-1
16-1
16-1
10
16
kHz
4.0
50
µs
4.7
µs
1000 ns
300
ns
3
16-16
16-16
16-16
16-16
14.32
12
12
1.0
1.0
33.33
36
36
5.0
5.0
MHz
ns
ns
ns
ns
16-1
16-1
16-1
16-1
12.288
750
32.56 48.84
32.56 48.84
MHz
ps
ns
ns
16-1
16-1
Intel^® 82801CA ICH3-S Datasheet