G73G110G116G101G103G114G97G116G101G100
G67G105G114G99G117G105G116
G83G121G115G116G101G109G115G44G32G73G110G99G46._
ICS9248-131
Block Diagram
Pentium is a trademark of Intel Corporation
I
2
C is a trademark of Philips Corporation
9248-131 Rev B 7/17/00
Pin Configuration
48-Pin SSOP
G42G32G73G110G116G101G114G110G97G108G32G80G117G108G108G45G117G112G32G82G101G115G105G115G116G111G114G32G111G102
G32G32G32G50G52G48G75G32G116G111G32G51G46._G51G86G32G111G110G32G105G110G100G105G99G97G116G101G100G32G105G110G112G117G116G115
VDDF
*REF0/CPU2.5_3.3#
GND
X1
X2
VDDPCI
*PCICLK_F/FS1
*PCICLK0/FS2
GND
PCICLK1
PCICLK2
PCICLK3
PCICLK4
VDDA
BUFFERIN
GND
*CPU_STOP#/SDRAM11
*PCI_STOP#/SDRAM10
VDDSDR
*AGP_STOP#/SDRAM9
*PD#/SDRAM8
GND
SDATA
SCLK
VDDAGP
AGP0
AGP1
GND
CPUCLK0
CPUCLK1
VDDL
CPUCLK2
SDRAM0
SDRAM1
VDDSDR
SDRAM2
SDRAM3
GND
SDRAM4
SDRAM5
VDDSDR
SDRAM6
SDRAM7
GND
48MHz/FS0*
AGP_F/MODE*
SDRAM12
GND
ICS9248-131
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
G82G101G99G111G109G109G101G110G100G101G100G32G65G112G112G108G105G99G97G116G105G111G110G58
G65G76G73G32G45G32G65G108G97G100G100G105G110G32G86
G153
G32G45G32G109G111G98G105G108G101G32G115G116G121G108G101G32G99G104G105G112G115G101G116G115
G79G117G116G112G117G116G32G70G101G97G116G117G114G101G115G58
G149 G51G32G45G32G67G80G85G115G32G64G32G50G46._G53G47G51G46._G51G86G44G32G117G112G32G116G111G32G49G48G48G77G72G122G46._
G149 G51G32G45G32G65G71G80G67G76G75G32G64G32G51G46._G51G86
G149 G49G51G32G45G32G83G68G82G65G77G32G64G32G51G46._G51G86
G149 G54G32G45G32G80G67G73G32G64G32G51G46._G51G86
G149 G49G32G45G32G52G56G77G72G122G44G32G64G32G51G46._G51G86G32G102G105G120G101G100G46._
G149 G49G32G45G32G82G69G70G32G64G32G51G46._G51G86G44G32G49G52G46._G51G49G56G77G72G122G46._
G70G101G97G116G117G114G101G115G58
G149 G83G117G112G112G111G114G116G32G112G111G119G101G114G32G109G97G110G97G103G101G109G101G110G116G58G32G67G80G85G44G32G80G67G73G44G32G65G71G80G32G32G115G116G111G112G32G97G110G100
G80G111G119G101G114G32G100G111G119G110G32G77G111G100G101G32G102G114G111G109G32G73
G50
G67G32G112G114G111G103G114G97G109G109G105G110G103G46._
G149 G83G112G114G101G97G100G32G115G112G101G99G116G114G117G109G32G102G111G114G32G69G77G73G32G99G111G110G116G114G111G108G46._
G149 G85G115G101G115G32G101G120G116G101G114G110G97G108G32G49G52G46._G51G49G56G77G72G122G32G99G114G121G115G116G97G108
G149 G70G83G32G112G105G110G115G32G102G111G114G32G102G114G101G113G117G101G110G99G121G32G115G101G108G101G99G116
G75G101G121G32G83G112G101G99G105G102G105G99G97G116G105G111G110G115G58
G149 G67G80G85G32G150G32G67G80G85G58G32G60G50G53G48G112G115
G149 G65G71G80G32G150G32G80G67G73G58G32G60G53G53G48G112G115
G149 G67G80G85G40G101G97G114G108G121G41G45G80G67G73G58G32G49G45G52G110G115G44G32G67G101G110G116G101G114G32G50G45G54G110G115
Frequency Generator & Integrated Buffers for Celeron & PII/III™
CPU2.5_3.3#
PLL2
PLL1
Spread
Spectrum
48MHz
CPUCLK (2:0)
PCICLK (4:0)
AGP (1:0)
2
5
3
AGP_F
PCICLK_F
X1
X2
XTAL
OSC
CPU
DIVDER
PCI
DIVDER
AGP
DIVDER
Stop
Stop
Stop
SDATA
SCLK
FS (2:0)
PD#
PCI_STOP#
CPU_STOP#
SDRAM_STOP#
AGP-STOP#
MODE
Control
Logic
Config.
Reg.
REF
BUFFERIN SDRAM (12:0)
13
1 1 1 100 33.33 66.67
1 1 0 95.25 31.75 63.50
1 0 1 83.3 33.30 66.60
1 0 0 97 32.33 64.66
0 1 1 91.5 30.50 61.00
0 1 0 96.22 32.07 64.15
0 0 1 66.67 33.33 66.67
0 0 0 60 30.00 60.00
PCI
(MHz)
FS2 FS1 FS0
CPU, SDRAM
(MHz)
AGP
(MHz)
Functionality
G78G111G116G101G58G32G82G69G70G32G38G32G73G79G65G80G73G67G32G61G32G49G52G46._G51G49G56G77G72G122
Power Groups
G65G110G97G108G111G103 G68G105G103G105G116G97G108
G86G68G68G70 G86G68G68G80G67G73
G86G68G68G65 G86G68G68G83G68G82
G86G68G68G65G71G80
ICS reserves the right to make changes in the device data identified in
this publication without further notice. ICS advises its customers to
obtain the latest version of all device data to verify that any
information being relied upon by the customer is current and accurate.