參數(shù)資料
型號(hào)： 9EPRS488CKLFT
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： 微控制器/微處理器
英文描述： SPECIALTY MICROPROCESSOR CIRCUIT, PQCC72
封裝： ROHS COMPLIANT, PLASTIC, MLF-72
文件頁(yè)數(shù)： 1/22頁(yè)
文件大?。?/td> 266K
代理商： 9EPRS488CKLFT
Integrated
Circuit
Systems, Inc.
ICS9EPRS488
Datasheet
1616—08/20/09
Document contains information on products in the formative or design phase development. Characteristic data and other specifications are design goals.
IDTreserves the right to change or discontinue these products without notice. Third party brands and names are the property of their respective owners.
Pin Configuration
Recommended Application:
AMD M690T/780E systems
Output Features:
Integrated series resistors on all differential outputs.
1 - Greyhound compatible low-power CPU pair
6 - low-power differential SRC pairs
2 - low-power differential chipset SouthBridge SRC pairs
1 - Selectable low-power differential 100MHz non-spread
SATA/ SRC output
1 - Selectable low-power differential SRC / 27MHz Single
Ended output
1 - Selectable HT3 100MHz low-power differential
hypertransport clock / HT66MHz Single Ended output
2 - 48MHz USB clock
3 - 14.318MHz Reference clock
3 - low-power differential ATIG pairs
5- Dedicated CLKREQ# pins
System Clock for Embedded AMD
TM based Systems
*Other names and brands may be claimed as the property of others.
Key Specifications:
CPU outputs cycle-to-cycle jitter < 150ps
SRC outputs cycle-to-cycle jitter < 125ps
SB_SRC outputs cycle-to-cycle jitter < 125ps
+/- 100ppm frequency accuracy on CPU, SRC, ATIG
0ppm frequency accuracy on 48MHz
Features/Benefits:
Power Saving Features:
SB_SRC_SLOW# input to throttle Chipset clocks
(SB_SRC) to 80% of normal.
Optional Separate supply rail for SRC low Voltage I/O
- ~33% power saving when 1.5V is used for this rail
Spread Spectrum for EMI reduction
Outputs may be disabled via SMBus
External crystal load capacitors for maximum frequency
accuracy
GN
D
4
8
48M
H
z
_0
48M
H
z
_1
VD
D
4
8
X2
X1
GN
D
R
E
F
R
E
F
0
/S
E
L_HT
T
66
R
E
F
1
/SEL
_
S
AT
A
R
E
F
2
/S
E
L_27
V
D
DRE
F
V
D
DHT
T
H
T
0
T
_LP
R
S
/66M
H
T
0
C
_LP
RS
/66M
GN
D
H
TT
PD
#
CP
UK
G
0
T
_
L
P
RS
CP
UK
G
0
C_
L
P
RS
72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55
SMBCLK 1
54 VDDCPU
SMBDAT 2
53 VDDCPU_IO
VDD 3
52 GNDCPU
SRC7C_LPRS/27MHz_NS 4
51 CLKREQ1#**
SRC7T_LPRS/27MHz_SS 5
50 CLKREQ2#**
GND 6
49 VDDA
SRC5C_LPRS 7
48 GNDA
SRC5T_LPRS 8
47 GNDSATA
SRC4C_LPRS 9
46 SRC6T/SATAT_LPRS
SRC4T_LPRS 10
45 SRC6C/SATAC_LPRS
GNDSRC 11
44 VDDSATA
VDDSRC_IO 12
43 CLKREQ3#**
SRC3C_LPRS 13
42 CLKREQ4#**
SRC3T_LPRS 14
41 SB_SRC_SLOW#*
SRC2C_LPRS 15
40 SB_SRC0T_LPRS
SRC2T_LPRS 16
39 SB_SRC0C_LPRS
VDDSRC 17
38 VDDSB_SRC
VDDSRC_IO 18
37 VDDSB_SRC_IO
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
G
NDS
R
C
S
R
C1C
_LP
RS
S
RC1
T
_
L
P
R
S
R
C0C
_LP
RS
S
RC0
T
_
L
P
R
S
**C
L
K
R
E
Q0
#
A
T
IG
2C
_LP
R
S
A
T
IG
2T
_LP
RS
GN
D
A
T
IG
V
DDA
T
IG
_
IO
VD
D
A
T
IG
A
T
IG
1C
_LP
R
S
A
T
IG
1T
_LP
RS
A
T
IG
0C
_LP
R
S
A
T
IG
0T
_LP
RS
S
B
_S
R
C
1C
_LP
RS
S
B
_
S
RC1
T
_
L
P
RS
G
N
D
S
B_
SR
C
9EPRS488
* Internal 120Kohm Pull-Up Resistor
** Internal Pull-Down Resistor
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