307013-003 Datasheet, PDF (801/848 Pages) Intel Corporation – Intel I/O Controller Hub 7

Electrical Characteristics
23.4 AC Characteristics
1
Table 23-9. Clock Timings (Sheet 1 of 2)
Sym
Parameter
Min
Max
Unit
Notes
Figur
e
PCI Clock (PCICLK)
t1 Period
t2 High Time
t3 Low Time
t4 Rise Time
t5 Fall Time
30
33.3
ns
11
ns
11
ns
1
4
V/ns
1
4
V/ns
23-1
23-1
23-1
23-1
23-1
14 MHz Clock (CLK14)
t6 Period
t7 High Time
t8 Low Time
t41 Rising Edge Rate
t42 Falling Edge Rate
67
70
ns
23-1
20
ns
23-1
20
ns
23-1
1.0
4.0 V/ns
1
1.0
4.0 V/ns
1
48 MHz Clock (CLK48)
fclk48 Operating Frequency
t9 Frequency Tolerance
t10 High Time
t11 Low Time
t12 Rise Time
t13 Fall Time
48.00
0
MHz
2
100 ppm
7
ns
7
ns
1.2
ns
1.2
ns
23-1
23-1
23-1
23-1
SMBus Clock (SMBCLK)
fsmb
t18
t19
t20
t21
Operating Frequency
High time
Low time
Rise time
Fall time
10
16
KHz
4.0
50
us
3
23-16
4.7
us
23-16
1000 ns
23-16
300
ns
23-16
Intel ^® ICH7 Family Datasheet
801