ICS932S825 Datasheet, PDF (1/20 Pages) Integrated Circuit Systems – Low Power Clock Chip for Serverworks HT2400 Servers

Integrated
Circuit
Systems, Inc.
ICS932S825
Low Power Clock Chip for Serverworks HT2400 Servers
Recommended Application:
Serverworks HT2400-based systems using AMD Opteron
processors
Output Features:
• 7 - Pairs of AMD Low Power K8 Greyhound
compliant clocks
• 7 - Pair of SRC/PCI Express* Gen 2 clocks
• 3 - 14.318 MHz REF clocks including 1 free-running
• 2 - 48MHz clocks
• 2 - PCI 33 MHz clocks
• 2 - 25MHz clocks
Features:
• Spread Spectrum for EMI reduction
• Outputs may be disabled via SMBus
• M/N programming via SMBus
• PCIe clocks meet PCIe Gen 2.
• Low Power differential outputs
Functionality
FS2 FS1 FS0
000
001
010
011
100
101
110
111
CPU
(MHz)
Hi-Z
X/6
180.00
220.00
100.00
133.33
Reserved
200.00
Pin Configuration
X1 1
X2 2
VDDREF_STB 3
REF0_RUN_2x 4
FS1/REF1_2x 5
FS2/REF2_2x 6
GNDREF 7
VDD48 8
48MHz_0_2x 9
48MHz_1_2x 10
GND48 11
SCLK 12
SDATA 13
VDDPCI 14
PCICLK0_2x 15
PCICLK1_2x 16
GNDPCI 17
CLKPWRGD/PD# 18
GND 19
VDDA 20
GNDA 21
GND 22
PCIeT_L0 23
PCIeC_L0 24
PCIeT_L1 25
PCIeC_L1 26
GND 27
VDDPCIe 28
PCIeT_L2 29
PCIeC_L2 30
PCIeT_L3 31
PCIeC_L3 32
64-TSSOP
64 VDD25MHz
63 FS0/25MHz_0_2x
62 25MHz_1_2x
61 GND25MHz
60 SPREAD_EN
59 CPUK8GT_L6
58 CPUK8GC_L6
57 CPUK8GT_L5
56 CPUK8GC_L5
55 VDDCPU
54 GND
53 CPUK8GT_L4
52 CPUK8GC_L4
51 CPUK8GT_L3
50 CPUK8GC_L3
49 CPUK8GT_L2
48 CPUK8GC_L2
47 VDDCPU
46 GND
45 CPUK8GT_L1
44 CPUK8GC_L1
43 CPUK8GT_L0
42 CPUK8GC_L0
41 GND
40 PCIeT_L6
39 PCIeC_L6
38 PCIeT_L5
37 PCIeC_L5
36 VDDPCIe
35 GND
34 PCIeT_L4
33 PCIeC_L4
Power Groups
Pin Number
VDD
8
64
14
20
36, 28
55, 47
3
GND
11
61
17
21
35, 27
54, 46
7
Description
48MHz Clocks
25MHz Clocks
33 MHz PCI Clocks
Analog Core
PCIe clocks
K8G CPU Clocks
REF Clocks, Xtal Osc.
1276D—10/25/07
*Other names and brands may be claimed as the property of others.