ICS9342 Datasheet, PDF (1/10 Pages) Integrated Circuit Systems – 133MHz Clock Generator and Integrated Buffer for PowerPC™

Integrated
Circuit
Systems, Inc.
ICS9342
133MHz Clock Generator and Integrated Buffer for PowerPC™
Recommended Application:
Power PC System Clock
Output Features:
• 12- CPUs @ 3.3V, up to 146MHz
• 1- PCIREF @ 3.3V, up to 73MHz
• 1 - OUT 3.3V, 64MHz
• 1 - OUT/2 3.3V, OUT/2MHz
• 2 - REF @ 3.3V, 14.318MHz
Features:
• Up to 146MHz frequency support
• Support power management: CPU, PCI stop and power
down mode.
• Spread spectrum for EMI control (0 to -0.5%, ± 0.25%).
• Uses external 14.318MHz crystal
• FS pins for frequency select
• Support for industrial temperature range (-40C° to 85C°)
Key Specifications:
• CPU Output Skew: <200ps
• CPU - PCI Output Skew: <500ps
• CPU Output Jitter: <150ps
• PCI Output Jitter: <500ps
Pin Configuration
VDDREF
1
REF1
2
REF0
3
GNDREF
4
X1
5
X2
6
*PD#
7
*CPU-STOP#
8
VDD
9
GND
10
*PCI_STOP#
11
*SS_EN#
12
VDDPCI
13
PCIREF
14
GNDPCI
15
*FS0
16
*FS1
17
*FS2
18
VDDFP
19
GNDFP
20
*TEST#/OUT
21
*BOOST#/OUT_DIV2
22
*PDFP#
23
VDDA
24
48
OUTSEL1*
47
VDDCPU
46
GNDCPU
45
CPU0
44
CPU1
43
CPU2
42
VDDCPU
41
GNDCPU
40
CPU3
39
CPU4
38
CPU5
37
VDDCPU
36
GNDCPU
35
CPU6
34
CPU7
33
CPU8
32
VDDCPU
31
GNDCPU
30
CPU9
29
CPU10
28
CPU11
27
VDDCPU
26
GNDCPU
25
OUTSEL0*
48-Pin 300mil SSOP
* Internal pull-up resistor of 120K to VDD
on indicated inputs.
Block Diagram
PLL2
X1
X2
OUTSEL (1:0)
SS_EN#
FS (2:0)
PD#
PDFP#
TEST#
BOOST#
XTAL
OSC
PLL1
Spread
Spectrum
Control
Logic
Config.
Reg.
/2
CPU
DIVDER
Stop
PCI
DIVDER
Stop
Functionality
OUT
OUT/DIV2
REF (1:0)
2
CPUCLK (11:0)
12
PCIREF
TEST
FS2
FS1 FS0
CPU
MHz
PCI
MHz
REF
MHz
1
1
1 1 133.33 33.33 14.318
1
1
1 0 100.00 33.33 14.318
1
1
0
1 83.33 33.33 14.318
1
1
0
0 66.66 33.33 14.318
1
0
1 1 133.33 66.66 14.318
1
0
1 0 100.00 66.66 14.318
1
0
0
1 83.33 66.66 14.318
1
0
0
0 66.66 66.66 14.318
9342 Rev E 9/06/00
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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.