ics9fg1201 Integrated Device Technology, ics9fg1201 Datasheet - Page 5

• Manufacturer Part Number: ics9fg1201
• Description: Frequency Generator For P4tm Cpu, Pci-express* & Fully Buffered Dimm Clocks
• Manufacturer: Integrated Device Technology

IDT
Note: Lines in BOLD are Power-up defaults for FS_A_410 = 0 and 1 respectively.
Shaded areas are shown for reference only and are not necessarily valid operating points
ICS9FG1201 Programmable Gear Ratios
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
ICS9FG1201H
Frequency Generator for CPU, PCIe Gen1* & Fully Buffered DIMM Clocks
TM
/ICS
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
TM
SMBus
Byte 0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Frequency Generator for CPU, PCIe Gen1* & Fully Buffered DIMM Clocks
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Input
(m)
12
12
3
5
2
5
8
3
4
6
1
5
4
3
2
3
1
3
5
2
5
8
3
5
6
1
5
4
3
2
3
1
Output
(n)
1
2
5
1
3
5
2
3
5
1
6
5
4
3
5
2
1
2
5
1
3
5
2
4
5
1
6
5
4
3
5
2
Gear Ratio
(n/m)
0.333
0.400
0.417
0.500
0.600
0.625
0.667
0.750
0.833
1.000
1.200
1.250
1.333
1.500
1.667
2.000
0.333
0.400
0.417
0.500
0.600
0.625
0.667
0.800
0.833
1.000
1.200
1.250
1.333
1.500
1.667
2.000
200.0
100.0
120.0
125.0
133.3
150.0
166.7
200.0
240.0
250.0
266.7
300.0
333.3
400.0
100.0
120.0
125.0
133.3
150.0
166.7
200.0
66.7
80.0
83.3
50.0
60.0
62.5
66.7
80.0
100
NA
NA
NA
CLK IN (CPU FSB) Frequency (MHz)
Input (CPU FSB) and Output
133.33
266.7
106.7
111.1
133.3
160.0
166.7
177.8
200.0
222.2
266.7
320.0
333.3
355.6
400.0
106.7
111.1
133.3
160.0
166.7
177.8
200.0
222.2
266.7
88.9
53.3
55.6
66.7
80.0
83.3
88.9
NA
NA
Frequencies (MHz)
5
320.0
106.7
128.0
133.3
160.0
192.0
200.0
213.3
240.0
266.7
320.0
384.0
400.0
100.0
106.7
128.0
133.3
160.0
192.0
200.0
213.3
266.7
320.0
64.0
66.7
80.0
96.0
160
NA
NA
NA
NA
166.67
333.3
111.1
133.3
138.9
166.7
200.0
208.3
222.2
250.0
277.8
333.3
400.0
100.0
104.2
111.1
133.3
138.9
166.7
200.0
208.3
222.2
277.8
333.3
66.7
69.4
83.3
NA
NA
NA
NA
NA
400.0
133.3
160.0
166.7
200.0
240.0
250.0
266.7
300.0
333.3
400.0
NA
NA
NA
NA
NA
NA
1371C — 02/12/08