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ICS9LPRS477C Datasheet(PDF) 1 Page - Renesas Technology Corp

Part # ICS9LPRS477C
Description  Programmable System Clock Chip for ATI RD790 - K8TM Based Systems
PDF  25 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ICS9LPRS477C Datasheet(HTML) 1 Page - Renesas Technology Corp

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9LPRS477C
IDT®
Programmable System Clock Chip for ATI RD790-K8TM Based Systems
1393—01/28/14
Programmable System Clock Chip for ATI RD790 - K8TM
Based Systems
1
DATASHEET
Pin Configuration
Recommended Application:
ATI RS780/RS790/RD790/RS880 systems using AMD
K8 processors
Output Features:
•
2 - Greyhound compatible K8 CPU pair
•
6 - low-power differential SRC pairs
•
2 - low-power differential SouthBridge SRC pairs
•
4 - low-power differential ATIG pairs
•
1 - Selectable low-power differential 100MHz non-
spread SATA/ SRC output
•
1 - Selectable 100MHz low-power differential/ 66 MHz
single-ended HTT clock
•
2 - 48MHz USB clock
•
3 - 14.318MHz Reference clock
Key Specifications:
•
CPU outputs cycle-to-cycle jitter < 85ps
•
SRC outputs cycle-to-cycle jitter < 125ps
•
ATIG outputs cycle-to-cycle jitter < 125ps
•
+/- 300ppm frequency accuracy on CPU, SRC & ATIG
clocks
Features/Benefits:
•
CPU, ATIG, SB_SRC and SRC outputs are
independently programmable for frequency
•
Spread Spectrum for EMI reduction
•
Outputs may be disabled via SMBus
•
External crystal load capacitors for maximum
frequency accuracy
•
Meets PCIEX Gen2 specifications
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
**SEL_DOC/48MHz_1 1
48 VDDCPU
**SEL_CPU1#/48MHz_0 2
47 GNDCPU
GND48 3
46 CPUKG1T_LPRS/SRC7T_LPRS
SMBCLK 4
45 CPUKG1C_LPRS/SRC7C_LPRS
SMBDAT 5
44 VDDA
**DOC_0/SRC5C_LPRS 6
43 GNDA
**DOC_1/SRC5T_LPRS 7
42 GNDSATA
SRC4C_LPRS 8
41 SRC6T/SATAT_LPRS
SRC4T_LPRS 9
40 SRC6C/SATAC_LPRS
GNDSRC 10
39 VDDSATA
VDDSRC 11
38 ATIG0T_LPRS
SRC3C_LPRS 12
37 ATIG0C_LPRS
SRC3T_LPRS 13
36 ATIG1T_LPRS
SRC2C_LPRS 14
35 ATIG1C_LPRS
SRC2T_LPRS 15
34 VDDATIG
VDDSRC 16
33 GNDATIG
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
** Internal Pull-Down Resistor
ICS9LPRS477C
64-Pin VFQFPN
* Internal Pull-Up Resistor


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